tron@2186: /* $Id$ */
tron@2186: 
truelight@0: #include "stdafx.h"
Darkvater@1891: #include "openttd.h"
tron@1299: #include "debug.h"
tron@2163: #include "functions.h"
tron@2662: #include "gui.h"
tron@1349: #include "spritecache.h"
tron@1309: #include "strings.h"
tron@1363: #include "table/sprites.h"
tron@507: #include "table/strings.h"
tron@679: #include "map.h"
truelight@0: #include "viewport.h"
truelight@0: #include "window.h"
truelight@0: #include "vehicle.h"
truelight@0: #include "station.h"
truelight@0: #include "gfx.h"
truelight@0: #include "town.h"
truelight@988: #include "signs.h"
truelight@1542: #include "waypoint.h"
tron@2159: #include "variables.h"
bjarni@2676: #include "train.h"
truelight@0: 
truelight@133: #define VIEWPORT_DRAW_MEM (65536 * 2)
truelight@0: 
Darkvater@5122: /* viewport.c */
Darkvater@5122: // XXX - maximum viewports is maximum windows - 2 (main toolbar + status bar)
Darkvater@5122: static ViewPort _viewports[25 - 2];
Darkvater@5122: static uint32 _active_viewports;    ///< bitmasked variable where each bit signifies if a viewport is in use or not
Darkvater@5122: assert_compile(lengthof(_viewports) < sizeof(_active_viewports) * 8);
Darkvater@5122: 
truelight@0: static bool _added_tile_sprite;
truelight@0: static bool _offset_ground_sprites;
truelight@0: 
tron@4186: /* The in-game coordiante system looks like this *
tron@4186:  *                                               *
tron@4186:  *                    ^ Z                        *
tron@4186:  *                    |                          *
tron@4186:  *                    |                          *
tron@4186:  *                    |                          *
tron@4186:  *                    |                          *
tron@4186:  *                 /     \                       *
tron@4186:  *              /           \                    *
tron@4186:  *           /                 \                 *
tron@4186:  *        /                       \              *
tron@4186:  *   X <                             > Y         *
tron@4186:  */
tron@4186: 
truelight@0: typedef struct StringSpriteToDraw {
truelight@0: 	uint16 string;
truelight@0: 	uint16 color;
truelight@0: 	struct StringSpriteToDraw *next;
tron@849: 	int32 x;
tron@849: 	int32 y;
tron@5026: 	uint32 params[2];
truelight@0: 	uint16 width;
truelight@0: } StringSpriteToDraw;
truelight@0: 
truelight@0: typedef struct TileSpriteToDraw {
truelight@0: 	uint32 image;
truelight@0: 	struct TileSpriteToDraw *next;
tron@849: 	int32 x;
tron@849: 	int32 y;
truelight@0: 	byte z;
truelight@0: } TileSpriteToDraw;
truelight@0: 
truelight@0: typedef struct ChildScreenSpriteToDraw {
truelight@0: 	uint32 image;
tron@849: 	int32 x;
tron@849: 	int32 y;
truelight@0: 	struct ChildScreenSpriteToDraw *next;
truelight@0: } ChildScreenSpriteToDraw;
truelight@0: 
truelight@0: typedef struct ParentSpriteToDraw {
truelight@0: 	uint32 image;
tron@849: 	int32 left;
tron@849: 	int32 top;
tron@849: 	int32 right;
tron@849: 	int32 bottom;
tron@4186: 	int32 xmin;
tron@4186: 	int32 ymin;
tron@4186: 	int32 xmax;
tron@4186: 	int32 ymax;
truelight@0: 	ChildScreenSpriteToDraw *child;
truelight@0: 	byte unk16;
tron@4186: 	byte zmin;
tron@4186: 	byte zmax;
truelight@0: } ParentSpriteToDraw;
truelight@0: 
ludde@2109: // Quick hack to know how much memory to reserve when allocating from the spritelist
ludde@2109: // to prevent a buffer overflow.
ludde@2109: #define LARGEST_SPRITELIST_STRUCT ParentSpriteToDraw
ludde@2109: 
truelight@0: typedef struct ViewportDrawer {
truelight@0: 	DrawPixelInfo dpi;
truelight@193: 
tron@2116: 	byte *spritelist_mem;
tron@2116: 	const byte *eof_spritelist_mem;
truelight@193: 
truelight@0: 	StringSpriteToDraw **last_string, *first_string;
truelight@0: 	TileSpriteToDraw **last_tile, *first_tile;
truelight@0: 
truelight@0: 	ChildScreenSpriteToDraw **last_child;
truelight@0: 
truelight@0: 	ParentSpriteToDraw **parent_list;
tron@2116: 	ParentSpriteToDraw * const *eof_parent_list;
truelight@0: 
truelight@0: 	byte combine_sprites;
truelight@0: 
truelight@0: 	int offs_x, offs_y; // used when drawing ground sprites relative
truelight@0: } ViewportDrawer;
truelight@0: 
truelight@0: static ViewportDrawer *_cur_vd;
truelight@0: 
tron@1863: TileHighlightData _thd;
truelight@0: static TileInfo *_cur_ti;
truelight@0: 
truelight@4340: extern void SmallMapCenterOnCurrentPos(Window *w);
truelight@0: 
tron@2116: static Point MapXYZToViewport(const ViewPort *vp, uint x, uint y, uint z)
truelight@0: {
truelight@0: 	Point p = RemapCoords(x, y, z);
tron@2116: 	p.x -= vp->virtual_width / 2;
tron@2116: 	p.y -= vp->virtual_height / 2;
truelight@0: 	return p;
truelight@0: }
truelight@0: 
Darkvater@5122: void InitViewports(void) {
Darkvater@5122: 	memset(_viewports, 0, sizeof(_viewports));
Darkvater@5122: 	_active_viewports = 0;
Darkvater@5122: }
Darkvater@5122: 
Darkvater@5122: void DeleteWindowViewport(Window *w)
Darkvater@5122: {
Darkvater@5122: 	CLRBIT(_active_viewports, w->viewport - _viewports);
Darkvater@5122: 	w->viewport->width = 0;
Darkvater@5122: 	w->viewport = NULL;
Darkvater@5122: }
Darkvater@5122: 
truelight@193: void AssignWindowViewport(Window *w, int x, int y,
truelight@0: 	int width, int height, uint32 follow_flags, byte zoom)
truelight@0: {
truelight@0: 	ViewPort *vp;
truelight@0: 	Point pt;
truelight@0: 	uint32 bit;
truelight@0: 
Darkvater@5122: 	for (vp = _viewports, bit = 0; ; vp++, bit++) {
tron@2116: 		assert(vp != endof(_viewports));
tron@2116: 		if (vp->width == 0) break;
truelight@0: 	}
Darkvater@5122: 	SETBIT(_active_viewports, bit);
truelight@0: 
truelight@0: 	vp->left = x + w->left;
truelight@0: 	vp->top = y + w->top;
truelight@0: 	vp->width = width;
truelight@0: 	vp->height = height;
truelight@193: 
truelight@0: 	vp->zoom = zoom;
truelight@0: 
truelight@0: 	vp->virtual_width = width << zoom;
truelight@0: 	vp->virtual_height = height << zoom;
truelight@0: 
truelight@0: 	if (follow_flags & 0x80000000) {
tron@2116: 		const Vehicle *veh;
tron@2116: 
tron@2116: 		WP(w, vp_d).follow_vehicle = (VehicleID)(follow_flags & 0xFFFF);
tron@2116: 		veh = GetVehicle(WP(w, vp_d).follow_vehicle);
truelight@0: 		pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
truelight@0: 	} else {
celestar@3421: 		uint x = TileX(follow_flags) * TILE_SIZE;
celestar@3421: 		uint y = TileY(follow_flags) * TILE_SIZE;
tron@2116: 
tron@2116: 		WP(w, vp_d).follow_vehicle = INVALID_VEHICLE;
tron@2116: 		pt = MapXYZToViewport(vp, x, y, GetSlopeZ(x, y));
truelight@0: 	}
truelight@0: 
tron@2116: 	WP(w, vp_d).scrollpos_x = pt.x;
tron@2116: 	WP(w, vp_d).scrollpos_y = pt.y;
truelight@0: 	w->viewport = vp;
truelight@0: 	vp->virtual_left = 0;//pt.x;
truelight@0: 	vp->virtual_top = 0;//pt.y;
truelight@0: }
truelight@0: 
truelight@0: static Point _vp_move_offs;
truelight@0: 
Darkvater@5137: static void DoSetViewportPosition(Window* const *wz, int left, int top, int width, int height)
truelight@0: {
Darkvater@5124: 
Darkvater@5124: 	for (; wz != _last_z_window; wz++) {
Darkvater@5124: 		const Window *w = *wz;
Darkvater@5124: 
truelight@0: 		if (left + width > w->left &&
tron@2116: 				w->left + w->width > left &&
truelight@0: 				top + height > w->top &&
tron@2116: 				w->top + w->height > top) {
truelight@193: 
truelight@0: 			if (left < w->left) {
Darkvater@5124: 				DoSetViewportPosition(wz, left, top, w->left - left, height);
Darkvater@5124: 				DoSetViewportPosition(wz, left + (w->left - left), top, width - (w->left - left), height);
truelight@0: 				return;
truelight@0: 			}
truelight@0: 
truelight@0: 			if (left + width > w->left + w->width) {
Darkvater@5124: 				DoSetViewportPosition(wz, left, top, (w->left + w->width - left), height);
Darkvater@5124: 				DoSetViewportPosition(wz, left + (w->left + w->width - left), top, width - (w->left + w->width - left) , height);
truelight@0: 				return;
truelight@0: 			}
truelight@0: 
truelight@0: 			if (top < w->top) {
Darkvater@5124: 				DoSetViewportPosition(wz, left, top, width, (w->top - top));
Darkvater@5124: 				DoSetViewportPosition(wz, left, top + (w->top - top), width, height - (w->top - top));
truelight@0: 				return;
truelight@0: 			}
truelight@0: 
truelight@0: 			if (top + height > w->top + w->height) {
Darkvater@5124: 				DoSetViewportPosition(wz, left, top, width, (w->top + w->height - top));
Darkvater@5124: 				DoSetViewportPosition(wz, left, top + (w->top + w->height - top), width , height - (w->top + w->height - top));
truelight@0: 				return;
truelight@0: 			}
truelight@0: 
truelight@0: 			return;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	{
truelight@0: 		int xo = _vp_move_offs.x;
truelight@0: 		int yo = _vp_move_offs.y;
truelight@0: 
truelight@0: 		if (abs(xo) >= width || abs(yo) >= height) {
truelight@0: 			/* fully_outside */
tron@2116: 			RedrawScreenRect(left, top, left + width, top + height);
truelight@0: 			return;
truelight@0: 		}
truelight@0: 
truelight@0: 		GfxScroll(left, top, width, height, xo, yo);
truelight@0: 
truelight@0: 		if (xo > 0) {
truelight@0: 			RedrawScreenRect(left, top, xo + left, top + height);
truelight@0: 			left += xo;
truelight@0: 			width -= xo;
truelight@0: 		} else if (xo < 0) {
truelight@0: 			RedrawScreenRect(left+width+xo, top, left+width, top + height);
truelight@0: 			width += xo;
truelight@0: 		}
truelight@0: 
truelight@0: 		if (yo > 0) {
truelight@0: 			RedrawScreenRect(left, top, width+left, top + yo);
truelight@0: 		} else if (yo < 0) {
truelight@0: 			RedrawScreenRect(left, top + height + yo, width+left, top + height);
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
belugas@4171: static void SetViewportPosition(Window *w, int x, int y)
truelight@0: {
truelight@0: 	ViewPort *vp = w->viewport;
truelight@0: 	int old_left = vp->virtual_left;
truelight@0: 	int old_top = vp->virtual_top;
truelight@0: 	int i;
truelight@0: 	int left, top, width, height;
truelight@0: 
truelight@0: 	vp->virtual_left = x;
truelight@0: 	vp->virtual_top = y;
truelight@0: 
truelight@0: 	old_left >>= vp->zoom;
truelight@0: 	old_top >>= vp->zoom;
truelight@0: 	x >>= vp->zoom;
truelight@0: 	y >>= vp->zoom;
truelight@0: 
truelight@0: 	old_left -= x;
truelight@0: 	old_top -= y;
truelight@0: 
tron@2116: 	if (old_top == 0 && old_left == 0) return;
truelight@0: 
truelight@0: 	_vp_move_offs.x = old_left;
truelight@0: 	_vp_move_offs.y = old_top;
truelight@0: 
truelight@0: 	left = vp->left;
truelight@0: 	top = vp->top;
truelight@0: 	width = vp->width;
truelight@0: 	height = vp->height;
truelight@0: 
truelight@0: 	if (left < 0) {
truelight@0: 		width += left;
truelight@0: 		left = 0;
truelight@0: 	}
truelight@0: 
tron@2116: 	i = left + width - _screen.width;
tron@2116: 	if (i >= 0) width -= i;
truelight@0: 
truelight@0: 	if (width > 0) {
truelight@0: 		if (top < 0) {
truelight@0: 			height += top;
truelight@0: 			top = 0;
truelight@0: 		}
truelight@193: 
tron@2116: 		i = top + height - _screen.height;
tron@2116: 		if (i >= 0) height -= i;
truelight@0: 
Darkvater@5124: 		if (height > 0) DoSetViewportPosition(FindWindowZPosition(w) + 1, left, top, width, height);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
tron@2116: ViewPort *IsPtInWindowViewport(const Window *w, int x, int y)
truelight@0: {
truelight@0: 	ViewPort *vp = w->viewport;
tron@2116: 
truelight@0: 	if (vp != NULL &&
truelight@0: 	    IS_INT_INSIDE(x, vp->left, vp->left + vp->width) &&
truelight@0: 			IS_INT_INSIDE(y, vp->top, vp->top + vp->height))
truelight@0: 		return vp;
truelight@0: 
truelight@0: 	return NULL;
truelight@0: }
truelight@0: 
tron@2116: static Point TranslateXYToTileCoord(const ViewPort *vp, int x, int y)
tron@1095: {
truelight@0: 	Point pt;
truelight@0: 	int a,b;
Darkvater@5014: 	uint z;
truelight@0: 
truelight@0: 	if ( (uint)(x -= vp->left) >= (uint)vp->width ||
truelight@0: 				(uint)(y -= vp->top) >= (uint)vp->height) {
truelight@0: 				Point pt = {-1, -1};
truelight@0: 				return pt;
truelight@0: 	}
truelight@0: 
truelight@0: 	x = ((x << vp->zoom) + vp->virtual_left) >> 2;
truelight@0: 	y = ((y << vp->zoom) + vp->virtual_top) >> 1;
truelight@0: 
truelight@0: #if !defined(NEW_ROTATION)
truelight@0: 	a = y-x;
truelight@0: 	b = y+x;
truelight@0: #else
truelight@0: 	a = x+y;
truelight@0: 	b = x-y;
truelight@0: #endif
truelight@0: 
Darkvater@5014: 	/* we need to move variables in to the valid range, as the
Darkvater@5014: 	 * GetTileZoomCenterWindow() function can call here with invalid x and/or y,
Darkvater@5014: 	 * when the user tries to zoom out along the sides of the map */
Darkvater@5014: 	a = clamp(a, 0, (int)(MapMaxX() * TILE_SIZE) - 1);
Darkvater@5014: 	b = clamp(b, 0, (int)(MapMaxY() * TILE_SIZE) - 1);
Darkvater@5014: 
Darkvater@5014: 	z = GetSlopeZ(a,     b    ) / 2;
Darkvater@5014: 	z = GetSlopeZ(a + z, b + z) / 2;
Darkvater@5014: 	z = GetSlopeZ(a + z, b + z) / 2;
Darkvater@5014: 	z = GetSlopeZ(a + z, b + z) / 2;
Darkvater@5014: 	z = GetSlopeZ(a + z, b + z) / 2;
Darkvater@5014: 
Darkvater@5014: 	pt.x = a + z;
Darkvater@5014: 	pt.y = b + z;
truelight@0: 
truelight@0: 	return pt;
truelight@0: }
truelight@0: 
darkvater@981: /* When used for zooming, check area below current coordinates (x,y)
darkvater@981:  * and return the tile of the zoomed out/in position (zoom_x, zoom_y)
darkvater@981:  * when you just want the tile, make x = zoom_x and y = zoom_y */
darkvater@981: static Point GetTileFromScreenXY(int x, int y, int zoom_x, int zoom_y)
truelight@193: {
truelight@0: 	Window *w;
truelight@0: 	ViewPort *vp;
truelight@0: 	Point pt;
truelight@193: 
truelight@193: 	if ( (w = FindWindowFromPt(x, y)) != NULL &&
truelight@0: 			 (vp = IsPtInWindowViewport(w, x, y)) != NULL)
darkvater@981: 				return TranslateXYToTileCoord(vp, zoom_x, zoom_y);
truelight@0: 
truelight@0: 	pt.y = pt.x = -1;
truelight@0: 	return pt;
truelight@0: }
truelight@0: 
tron@1093: Point GetTileBelowCursor(void)
truelight@0: {
darkvater@981: 	return GetTileFromScreenXY(_cursor.pos.x, _cursor.pos.y, _cursor.pos.x, _cursor.pos.y);
truelight@0: }
truelight@0: 
darkvater@152: 
darkvater@152: Point GetTileZoomCenterWindow(bool in, Window * w)
truelight@0: {
truelight@0: 	int x, y;
darkvater@152: 	ViewPort * vp;
darkvater@152: 
darkvater@152: 	vp = w->viewport;
darkvater@152: 
tron@2026: 	if (in) {
tron@2116: 		x = ((_cursor.pos.x - vp->left) >> 1) + (vp->width >> 2);
tron@2116: 		y = ((_cursor.pos.y - vp->top) >> 1) + (vp->height >> 2);
tron@2116: 	} else {
darkvater@152: 		x = vp->width - (_cursor.pos.x - vp->left);
darkvater@152: 		y = vp->height - (_cursor.pos.y - vp->top);
truelight@0: 	}
darkvater@981: 	/* Get the tile below the cursor and center on the zoomed-out center */
darkvater@981: 	return GetTileFromScreenXY(_cursor.pos.x, _cursor.pos.y, x + vp->left, y + vp->top);
truelight@0: }
truelight@0: 
Darkvater@5045: /** Update the status of the zoom-buttons according to the zoom-level
Darkvater@5045:  * of the viewport. This will update their status and invalidate accordingly
Darkvater@5045:  * @param window pointer to the window that has the zoom buttons
Darkvater@5045:  * @param vp pointer to the viewport whose zoom-level the buttons represent
Darkvater@5045:  * @param widget_zoom_in widget index for window with zoom-in button
Darkvater@5045:  * @param widget_zoom_out widget index for window with zoom-out button */
Darkvater@5045: void HandleZoomMessage(Window *w, const ViewPort *vp, byte widget_zoom_in, byte widget_zoom_out)
Darkvater@5045: {
Darkvater@5045: 	SetWindowWidgetDisabledState(w, widget_zoom_in, vp->zoom == 0);
Darkvater@5045: 	InvalidateWidget(w, widget_zoom_in);
Darkvater@5045: 
Darkvater@5045: 	SetWindowWidgetDisabledState(w, widget_zoom_out, vp->zoom == 2);
Darkvater@5045: 	InvalidateWidget(w, widget_zoom_out);
Darkvater@5045: }
Darkvater@5045: 
tron@849: void DrawGroundSpriteAt(uint32 image, int32 x, int32 y, byte z)
truelight@0: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	TileSpriteToDraw *ts;
truelight@193: 
celestar@2187: 	assert((image & SPRITE_MASK) < MAX_SPRITES);
truelight@0: 
tron@2116: 	if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
celestar@2013: 		DEBUG(misc, 0) ("Out of sprite mem");
truelight@0: 		return;
truelight@0: 	}
tron@2116: 	ts = (TileSpriteToDraw*)vd->spritelist_mem;
truelight@0: 
truelight@0: 	vd->spritelist_mem += sizeof(TileSpriteToDraw);
truelight@193: 
truelight@0: 	ts->image = image;
truelight@0: 	ts->next = NULL;
truelight@0: 	ts->x = x;
truelight@0: 	ts->y = y;
truelight@0: 	ts->z = z;
truelight@0: 	*vd->last_tile = ts;
truelight@193: 	vd->last_tile = &ts->next;
truelight@0: }
truelight@0: 
truelight@0: void DrawGroundSprite(uint32 image)
truelight@0: {
truelight@0: 	if (_offset_ground_sprites) {
truelight@0: 		// offset ground sprite because of foundation?
truelight@0: 		AddChildSpriteScreen(image, _cur_vd->offs_x, _cur_vd->offs_y);
truelight@0: 	} else {
dominik@1083: 		_added_tile_sprite = true;
truelight@0: 		DrawGroundSpriteAt(image, _cur_ti->x, _cur_ti->y, _cur_ti->z);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: void OffsetGroundSprite(int x, int y)
truelight@0: {
truelight@0: 	_cur_vd->offs_x = x;
truelight@0: 	_cur_vd->offs_y = y;
truelight@0: 	_offset_ground_sprites = true;
truelight@0: }
truelight@0: 
truelight@0: static void AddCombinedSprite(uint32 image, int x, int y, byte z)
truelight@0: {
tron@2116: 	const ViewportDrawer *vd = _cur_vd;
truelight@0: 	Point pt = RemapCoords(x, y, z);
tron@2319: 	const Sprite* spr = GetSprite(image & SPRITE_MASK);
truelight@0: 
tron@2319: 	if (pt.x + spr->x_offs >= vd->dpi.left + vd->dpi.width ||
tron@2319: 			pt.x + spr->x_offs + spr->width <= vd->dpi.left ||
tron@2319: 			pt.y + spr->y_offs >= vd->dpi.top + vd->dpi.height ||
tron@2319: 			pt.y + spr->y_offs + spr->height <= vd->dpi.top)
truelight@0: 		return;
truelight@0: 
tron@2116: 	AddChildSpriteScreen(image, pt.x - vd->parent_list[-1]->left, pt.y - vd->parent_list[-1]->top);
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: void AddSortableSpriteToDraw(uint32 image, int x, int y, int w, int h, byte dz, byte z)
truelight@0: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	ParentSpriteToDraw *ps;
belugas@4171: 	const Sprite *spr;
truelight@0: 	Point pt;
truelight@0: 
celestar@2187: 	assert((image & SPRITE_MASK) < MAX_SPRITES);
truelight@0: 
truelight@0: 	if (vd->combine_sprites == 2) {
truelight@0: 		AddCombinedSprite(image, x, y, z);
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	vd->last_child = NULL;
truelight@0: 
tron@2116: 	if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
celestar@2013: 		DEBUG(misc, 0) ("Out of sprite mem");
truelight@0: 		return;
truelight@0: 	}
tron@2116: 	ps = (ParentSpriteToDraw*)vd->spritelist_mem;
tron@2116: 
truelight@133: 	if (vd->parent_list >= vd->eof_parent_list) {
truelight@133: 		// This can happen rarely, mostly when you zoom out completely
truelight@193: 		//  and have a lot of stuff that moves (and is added to the
truelight@133: 		//  sort-list, this function). To solve it, increase
truelight@133: 		//  parent_list somewhere below to a higher number.
truelight@133: 		// This can not really hurt you, it just gives some black
truelight@133: 		//  spots on the screen ;)
celestar@2013: 		DEBUG(misc, 0) ("Out of sprite mem (parent_list)");
truelight@133: 		return;
truelight@193: 	}
truelight@193: 
tron@4189: 	pt = RemapCoords(x, y, z);
tron@4189: 	spr = GetSprite(image & SPRITE_MASK);
tron@4189: 	if ((ps->left   = (pt.x += spr->x_offs)) >= vd->dpi.left + vd->dpi.width ||
tron@4189: 			(ps->right  = (pt.x +  spr->width )) <= vd->dpi.left ||
tron@4189: 			(ps->top    = (pt.y += spr->y_offs)) >= vd->dpi.top + vd->dpi.height ||
tron@4189: 			(ps->bottom = (pt.y +  spr->height)) <= vd->dpi.top) {
tron@4189: 		return;
tron@4189: 	}
tron@4189: 
truelight@193: 	vd->spritelist_mem += sizeof(ParentSpriteToDraw);
truelight@0: 
truelight@0: 	ps->image = image;
tron@4186: 	ps->xmin = x;
tron@4186: 	ps->xmax = x + w - 1;
truelight@0: 
tron@4186: 	ps->ymin = y;
tron@4186: 	ps->ymax = y + h - 1;
truelight@0: 
tron@4186: 	ps->zmin = z;
tron@4186: 	ps->zmax = z + dz - 1;
truelight@0: 
truelight@0: 	ps->unk16 = 0;
truelight@0: 	ps->child = NULL;
truelight@0: 	vd->last_child = &ps->child;
truelight@0: 
truelight@0: 	*vd->parent_list++ = ps;
truelight@0: 
tron@2116: 	if (vd->combine_sprites == 1) vd->combine_sprites = 2;
truelight@0: }
truelight@0: 
tron@1093: void StartSpriteCombine(void)
truelight@0: {
truelight@0: 	_cur_vd->combine_sprites = 1;
truelight@0: }
truelight@0: 
tron@1093: void EndSpriteCombine(void)
truelight@0: {
truelight@0: 	_cur_vd->combine_sprites = 0;
truelight@0: }
truelight@0: 
truelight@0: void AddChildSpriteScreen(uint32 image, int x, int y)
truelight@0: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	ChildScreenSpriteToDraw *cs;
truelight@193: 
celestar@2187: 	assert((image & SPRITE_MASK) < MAX_SPRITES);
truelight@0: 
tron@2116: 	if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
celestar@2013: 		DEBUG(misc, 0) ("Out of sprite mem");
truelight@0: 		return;
truelight@0: 	}
tron@2116: 	cs = (ChildScreenSpriteToDraw*)vd->spritelist_mem;
truelight@0: 
tron@2116: 	if (vd->last_child == NULL) return;
truelight@193: 
truelight@193: 	vd->spritelist_mem += sizeof(ChildScreenSpriteToDraw);
truelight@0: 
truelight@0: 	*vd->last_child = cs;
truelight@0: 	vd->last_child = &cs->next;
truelight@0: 
truelight@0: 	cs->image = image;
truelight@0: 	cs->x = x;
truelight@0: 	cs->y = y;
truelight@0: 	cs->next = NULL;
truelight@0: }
truelight@0: 
truelight@0: /* Returns a StringSpriteToDraw */
tron@5026: void *AddStringToDraw(int x, int y, StringID string, uint32 params_1, uint32 params_2)
truelight@0: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	StringSpriteToDraw *ss;
truelight@0: 
tron@2116: 	if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
celestar@2013: 		DEBUG(misc, 0) ("Out of sprite mem");
truelight@0: 		return NULL;
truelight@0: 	}
tron@2116: 	ss = (StringSpriteToDraw*)vd->spritelist_mem;
truelight@0: 
truelight@0: 	vd->spritelist_mem += sizeof(StringSpriteToDraw);
truelight@0: 
truelight@0: 	ss->string = string;
truelight@0: 	ss->next = NULL;
truelight@0: 	ss->x = x;
truelight@0: 	ss->y = y;
truelight@0: 	ss->params[0] = params_1;
truelight@0: 	ss->params[1] = params_2;
truelight@0: 	ss->width = 0;
truelight@0: 
truelight@0: 	*vd->last_string = ss;
truelight@0: 	vd->last_string = &ss->next;
truelight@0: 
truelight@0: 	return ss;
truelight@0: }
truelight@0: 
tron@4000: 
truelight@0: static void DrawSelectionSprite(uint32 image, const TileInfo *ti)
truelight@0: {
tron@1863: 	if (_added_tile_sprite && !(_thd.drawstyle & HT_LINE)) { // draw on real ground
dominik@1083: 		DrawGroundSpriteAt(image, ti->x, ti->y, ti->z + 7);
dominik@1083: 	} else { // draw on top of foundation
dominik@1083: 		AddSortableSpriteToDraw(image, ti->x, ti->y, 0x10, 0x10, 1, ti->z + 7);
dominik@1083: 	}
truelight@0: }
truelight@0: 
truelight@0: static bool IsPartOfAutoLine(int px, int py)
truelight@0: {
tron@1863: 	px -= _thd.selstart.x;
tron@1863: 	py -= _thd.selstart.y;
truelight@0: 
tron@2952: 	switch (_thd.drawstyle) {
dominik@1070: 	case HT_LINE | HT_DIR_X:  return py == 0; // x direction
dominik@1070: 	case HT_LINE | HT_DIR_Y:  return px == 0; // y direction
dominik@1070: 	case HT_LINE | HT_DIR_HU: return px == -py || px == -py - 16; // horizontal upper
dominik@1070: 	case HT_LINE | HT_DIR_HL: return px == -py || px == -py + 16; // horizontal lower
dominik@1070: 	case HT_LINE | HT_DIR_VL: return px == py || px == py + 16; // vertival left
dominik@1070: 	case HT_LINE | HT_DIR_VR: return px == py || px == py - 16; // vertical right
truelight@0: 	default:
truelight@0: 		NOT_REACHED();
truelight@0: 	}
truelight@193: 
truelight@0: 	/* useless, but avoids compiler warning this way */
truelight@0: 	return 0;
truelight@0: }
truelight@0: 
dominik@1070: // [direction][side]
Darkvater@2710: static const int _AutorailType[6][2] = {
dominik@1070: 	{ HT_DIR_X,  HT_DIR_X },
dominik@1070: 	{ HT_DIR_Y,  HT_DIR_Y },
dominik@1070: 	{ HT_DIR_HU, HT_DIR_HL },
dominik@1070: 	{ HT_DIR_HL, HT_DIR_HU },
dominik@1070: 	{ HT_DIR_VL, HT_DIR_VR },
dominik@1070: 	{ HT_DIR_VR, HT_DIR_VL }
dominik@1070: };
dominik@1070: 
dominik@1070: #include "table/autorail.h"
dominik@1070: 
truelight@0: static void DrawTileSelection(const TileInfo *ti)
truelight@0: {
truelight@0: 	uint32 image;
truelight@0: 
truelight@0: 	// Draw a red error square?
celestar@3281: 	if (_thd.redsq != 0 && _thd.redsq == ti->tile) {
tron@1864: 		DrawSelectionSprite(PALETTE_TILE_RED_PULSATING | (SPR_SELECT_TILE + _tileh_to_sprite[ti->tileh]), ti);
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	// no selection active?
tron@2116: 	if (_thd.drawstyle == 0) return;
truelight@0: 
truelight@0: 	// Inside the inner area?
tron@2116: 	if (IS_INSIDE_1D(ti->x, _thd.pos.x, _thd.size.x) &&
tron@2116: 			IS_INSIDE_1D(ti->y, _thd.pos.y, _thd.size.y)) {
tron@1863: 		if (_thd.drawstyle & HT_RECT) {
tron@1864: 			image = SPR_SELECT_TILE + _tileh_to_sprite[ti->tileh];
tron@1864: 			if (_thd.make_square_red) image |= PALETTE_SEL_TILE_RED;
truelight@0: 			DrawSelectionSprite(image, ti);
tron@1863: 		} else if (_thd.drawstyle & HT_POINT) {
truelight@0: 			// Figure out the Z coordinate for the single dot.
truelight@0: 			byte z = ti->z;
tron@3636: 			if (ti->tileh & SLOPE_N) {
tron@3645: 				z += TILE_HEIGHT;
tron@3645: 				if (ti->tileh == SLOPE_STEEP_N) z += TILE_HEIGHT;
truelight@0: 			}
tron@1864: 			DrawGroundSpriteAt(_cur_dpi->zoom != 2 ? SPR_DOT : SPR_DOT_SMALL, ti->x, ti->y, z);
tron@2116: 		} else if (_thd.drawstyle & HT_RAIL /*&& _thd.place_mode == VHM_RAIL*/) {
tron@2116: 			// autorail highlight piece under cursor
tron@2116: 			uint type = _thd.drawstyle & 0xF;
tron@2116: 			assert(type <= 5);
Darkvater@2710: 			image = SPR_AUTORAIL_BASE + _AutorailTilehSprite[ti->tileh][_AutorailType[type][0]];
dominik@1070: 
tron@1864: 			if (_thd.make_square_red) image |= PALETTE_SEL_TILE_RED;
dominik@1070: 			DrawSelectionSprite(image, ti);
dominik@1070: 
tron@2116: 		} else if (IsPartOfAutoLine(ti->x, ti->y)) {
tron@2116: 			// autorail highlighting long line
tron@2116: 			int dir = _thd.drawstyle & ~0xF0;
tron@2116: 			uint side;
dominik@1070: 
tron@2116: 			if (dir < 2) {
tron@2116: 				side = 0;
tron@2116: 			} else {
tron@2116: 				TileIndex start = TileVirtXY(_thd.selstart.x, _thd.selstart.y);
tron@2116: 				int diffx = myabs(TileX(start) - TileX(ti->tile));
tron@2116: 				int diffy = myabs(TileY(start) - TileY(ti->tile));
tron@2116: 				side = myabs(diffx - diffy);
tron@2116: 			}
tron@1109: 
Darkvater@2710: 			image = SPR_AUTORAIL_BASE + _AutorailTilehSprite[ti->tileh][_AutorailType[dir][side]];
dominik@1070: 
tron@2116: 			if (_thd.make_square_red) image |= PALETTE_SEL_TILE_RED;
tron@2116: 			DrawSelectionSprite(image, ti);
tron@2116: 		}
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	// Check if it's inside the outer area?
tron@1863: 	if (_thd.outersize.x &&
tron@1863: 			_thd.size.x < _thd.size.x + _thd.outersize.x &&
tron@1863: 			IS_INSIDE_1D(ti->x, _thd.pos.x + _thd.offs.x, _thd.size.x + _thd.outersize.x) &&
tron@1863: 			IS_INSIDE_1D(ti->y, _thd.pos.y + _thd.offs.y, _thd.size.y + _thd.outersize.y)) {
truelight@0: 		// Draw a blue rect.
tron@1864: 		DrawSelectionSprite(PALETTE_SEL_TILE_BLUE | (SPR_SELECT_TILE + _tileh_to_sprite[ti->tileh]), ti);
truelight@0: 		return;
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@1093: static void ViewportAddLandscape(void)
truelight@0: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	int x, y, width, height;
truelight@0: 	TileInfo ti;
truelight@0: 	bool direction;
truelight@0: 
truelight@0: 	_cur_ti = &ti;
truelight@0: 
truelight@0: 	// Transform into tile coordinates and round to closest full tile
truelight@0: #if !defined(NEW_ROTATION)
truelight@0: 	x = ((vd->dpi.top >> 1) - (vd->dpi.left >> 2)) & ~0xF;
truelight@0: 	y = ((vd->dpi.top >> 1) + (vd->dpi.left >> 2) - 0x10) & ~0xF;
truelight@0: #else
truelight@0: 	x = ((vd->dpi.top >> 1) + (vd->dpi.left >> 2) - 0x10) & ~0xF;
truelight@0: 	y = ((vd->dpi.left >> 2) - (vd->dpi.top >> 1)) & ~0xF;
truelight@0: #endif
truelight@0: 	// determine size of area
truelight@0: 	{
truelight@0: 		Point pt = RemapCoords(x, y, 241);
truelight@0: 		width = (vd->dpi.left + vd->dpi.width - pt.x + 95) >> 6;
truelight@0: 		height = (vd->dpi.top + vd->dpi.height - pt.y) >> 5 << 1;
truelight@0: 	}
truelight@0: 
truelight@0: 	assert(width > 0);
truelight@0: 	assert(height > 0);
truelight@193: 
truelight@0: 	direction = false;
truelight@0: 
truelight@0: 	do {
truelight@0: 		int width_cur = width;
truelight@0: 		int x_cur = x;
truelight@0: 		int y_cur = y;
truelight@193: 
truelight@0: 		do {
tron@4238: 			TileType tt;
tron@4238: 
tron@4238: 			ti.x = x_cur;
tron@4238: 			ti.y = y_cur;
tron@4238: 			if (0 <= x_cur && x_cur < (int)MapMaxX() * TILE_SIZE &&
tron@4238: 					0 <= y_cur && y_cur < (int)MapMaxY() * TILE_SIZE) {
tron@4238: 				TileIndex tile = TileVirtXY(x_cur, y_cur);
tron@4238: 
tron@4238: 				ti.tile = tile;
tron@4238: 				ti.tileh = GetTileSlope(tile, &ti.z);
tron@4238: 				tt = GetTileType(tile);
tron@4238: 			} else {
tron@4238: 				ti.tileh = SLOPE_FLAT;
tron@4238: 				ti.tile = 0;
tron@4238: 				ti.z = 0;
tron@4238: 				tt = MP_VOID;
tron@4238: 			}
tron@4238: 
truelight@0: #if !defined(NEW_ROTATION)
truelight@0: 			y_cur += 0x10;
truelight@0: 			x_cur -= 0x10;
truelight@0: #else
truelight@0: 			y_cur += 0x10;
truelight@0: 			x_cur += 0x10;
truelight@0: #endif
truelight@0: 			_added_tile_sprite = false;
truelight@0: 			_offset_ground_sprites = false;
truelight@193: 
tron@4238: 			_tile_type_procs[tt]->draw_tile_proc(&ti);
truelight@0: 			DrawTileSelection(&ti);
truelight@0: 		} while (--width_cur);
truelight@193: 
truelight@0: #if !defined(NEW_ROTATION)
truelight@0: 		if ( (direction^=1) != 0)
truelight@0: 			y += 0x10;
truelight@0: 		else
truelight@0: 			x += 0x10;
truelight@0: #else
truelight@0: 		if ( (direction^=1) != 0)
truelight@0: 			x += 0x10;
truelight@0: 		else
truelight@0: 			y -= 0x10;
truelight@0: #endif
truelight@193: 	} while (--height);
truelight@0: }
truelight@0: 
truelight@0: 
tron@410: static void ViewportAddTownNames(DrawPixelInfo *dpi)
truelight@0: {
truelight@0: 	Town *t;
truelight@0: 	int left, top, right, bottom;
truelight@0: 
truelight@0: 	if (!(_display_opt & DO_SHOW_TOWN_NAMES) || _game_mode == GM_MENU)
truelight@0: 		return;
truelight@0: 
truelight@0: 	left = dpi->left;
truelight@0: 	top = dpi->top;
truelight@0: 	right = left + dpi->width;
truelight@0: 	bottom = top + dpi->height;
truelight@0: 
tron@5027: 	switch (dpi->zoom) {
tron@5027: 		case 0:
tron@5027: 			FOR_ALL_TOWNS(t) {
tron@5027: 				if (bottom > t->sign.top &&
tron@5027: 						top    < t->sign.top + 12 &&
tron@5027: 						right  > t->sign.left &&
tron@5027: 						left   < t->sign.left + t->sign.width_1) {
tron@5027: 					AddStringToDraw(t->sign.left + 1, t->sign.top + 1,
tron@5027: 						_patches.population_in_label ? STR_TOWN_LABEL_POP : STR_TOWN_LABEL,
tron@5027: 						t->index, t->population);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		case 1:
tron@5027: 			right += 2;
tron@5027: 			bottom += 2;
tron@5027: 
tron@5027: 			FOR_ALL_TOWNS(t) {
tron@5027: 				if (bottom > t->sign.top &&
tron@5027: 						top    < t->sign.top + 24 &&
tron@5027: 						right  > t->sign.left &&
tron@5027: 						left   < t->sign.left + t->sign.width_1*2) {
tron@5027: 					AddStringToDraw(t->sign.left + 1, t->sign.top + 1,
tron@5027: 						_patches.population_in_label ? STR_TOWN_LABEL_POP : STR_TOWN_LABEL,
tron@5027: 						t->index, t->population);
tron@5027: 				}
truelight@193: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		default: NOT_REACHED();
tron@5027: 		case 2:
tron@5027: 			right += 4;
tron@5027: 			bottom += 5;
tron@5027: 
tron@5027: 			FOR_ALL_TOWNS(t) {
tron@5027: 				if (bottom > t->sign.top &&
tron@5027: 						top    < t->sign.top + 24 &&
tron@5027: 						right  > t->sign.left &&
tron@5027: 						left   < t->sign.left + t->sign.width_2*4) {
tron@5027: 					AddStringToDraw(t->sign.left + 5, t->sign.top + 1, STR_TOWN_LABEL_TINY_BLACK, t->index, 0);
tron@5027: 					AddStringToDraw(t->sign.left + 1, t->sign.top - 3, STR_TOWN_LABEL_TINY_WHITE, t->index, 0);
tron@5027: 				}
truelight@193: 			}
tron@5027: 			break;
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@5025: 
tron@5025: static void AddStation(const Station *st, StringID str, uint16 width)
tron@5025: {
tron@5025: 	StringSpriteToDraw *sstd;
tron@5025: 
tron@5026: 	sstd = AddStringToDraw(st->sign.left + 1, st->sign.top + 1, str, st->index, st->facilities);
tron@5025: 	if (sstd != NULL) {
tron@5025: 		sstd->color = (st->owner == OWNER_NONE || st->facilities == 0) ? 0xE : _player_colors[st->owner];
tron@5025: 		sstd->width = width;
tron@5025: 	}
tron@5025: }
tron@5025: 
tron@5025: 
tron@410: static void ViewportAddStationNames(DrawPixelInfo *dpi)
truelight@0: {
truelight@0: 	int left, top, right, bottom;
tron@5025: 	const Station *st;
truelight@0: 
truelight@0: 	if (!(_display_opt & DO_SHOW_STATION_NAMES) || _game_mode == GM_MENU)
truelight@0: 		return;
truelight@0: 
truelight@0: 	left = dpi->left;
truelight@0: 	top = dpi->top;
truelight@0: 	right = left + dpi->width;
truelight@0: 	bottom = top + dpi->height;
truelight@0: 
tron@5027: 	switch (dpi->zoom) {
tron@5027: 		case 0:
tron@5027: 			FOR_ALL_STATIONS(st) {
tron@5027: 				if (bottom > st->sign.top &&
tron@5027: 						top    < st->sign.top + 12 &&
tron@5027: 						right  > st->sign.left &&
tron@5027: 						left   < st->sign.left + st->sign.width_1) {
tron@5027: 					AddStation(st, STR_305C_0, st->sign.width_1);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		case 1:
tron@5027: 			right += 2;
tron@5027: 			bottom += 2;
tron@5027: 			FOR_ALL_STATIONS(st) {
tron@5027: 				if (bottom > st->sign.top &&
tron@5027: 						top    < st->sign.top + 24 &&
tron@5027: 						right  > st->sign.left &&
tron@5027: 						left   < st->sign.left + st->sign.width_1*2) {
tron@5027: 					AddStation(st, STR_305C_0, st->sign.width_1);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		default: NOT_REACHED();
tron@5027: 		case 2:
tron@5027: 			right += 4;
tron@5027: 			bottom += 5;
tron@5027: 			FOR_ALL_STATIONS(st) {
tron@5027: 				if (bottom > st->sign.top &&
tron@5027: 						top    < st->sign.top + 24 &&
tron@5027: 						right  > st->sign.left &&
tron@5027: 						left   < st->sign.left + st->sign.width_2*4) {
tron@5027: 					AddStation(st, STR_STATION_SIGN_TINY, st->sign.width_2 | 0x8000);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@5025: 
tron@5025: static void AddSign(const Sign *si, StringID str, uint16 width)
tron@5025: {
tron@5025: 	StringSpriteToDraw *sstd;
tron@5025: 
tron@5026: 	sstd = AddStringToDraw(si->sign.left + 1, si->sign.top + 1, str, si->str, 0);
tron@5025: 	if (sstd != NULL) {
tron@5025: 		sstd->color = (si->owner == OWNER_NONE) ? 14 : _player_colors[si->owner];
tron@5025: 		sstd->width = width;
tron@5025: 	}
tron@5025: }
tron@5025: 
tron@5025: 
tron@410: static void ViewportAddSigns(DrawPixelInfo *dpi)
truelight@0: {
tron@5025: 	const Sign *si;
truelight@0: 	int left, top, right, bottom;
truelight@0: 
truelight@0: 	if (!(_display_opt & DO_SHOW_SIGNS))
truelight@0: 		return;
truelight@0: 
truelight@0: 	left = dpi->left;
truelight@0: 	top = dpi->top;
truelight@0: 	right = left + dpi->width;
truelight@0: 	bottom = top + dpi->height;
truelight@0: 
tron@5027: 	switch (dpi->zoom) {
tron@5027: 		case 0:
tron@5027: 			FOR_ALL_SIGNS(si) {
tron@5027: 				if (bottom > si->sign.top &&
tron@5027: 						top    < si->sign.top + 12 &&
tron@5027: 						right  > si->sign.left &&
tron@5027: 						left   < si->sign.left + si->sign.width_1) {
tron@5027: 					AddSign(si, STR_2806, si->sign.width_1);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		case 1:
tron@5027: 			right += 2;
tron@5027: 			bottom += 2;
tron@5027: 			FOR_ALL_SIGNS(si) {
tron@5027: 				if (bottom > si->sign.top &&
tron@5027: 						top    < si->sign.top + 24 &&
tron@5027: 						right  > si->sign.left &&
tron@5027: 						left   < si->sign.left + si->sign.width_1 * 2) {
tron@5027: 					AddSign(si, STR_2806, si->sign.width_1);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		default: NOT_REACHED();
tron@5027: 		case 2:
tron@5027: 			right += 4;
tron@5027: 			bottom += 5;
tron@5027: 			FOR_ALL_SIGNS(si) {
tron@5027: 				if (bottom > si->sign.top &&
tron@5027: 						top    < si->sign.top + 24 &&
tron@5027: 						right  > si->sign.left &&
tron@5027: 						left   < si->sign.left + si->sign.width_2 * 4) {
tron@5027: 					AddSign(si, STR_2002, si->sign.width_2 | 0x8000);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@5025: 
tron@5025: static void AddWaypoint(const Waypoint *wp, StringID str, uint16 width)
tron@5025: {
tron@5025: 	StringSpriteToDraw *sstd;
tron@5025: 
tron@5026: 	sstd = AddStringToDraw(wp->sign.left + 1, wp->sign.top + 1, str, wp->index, 0);
tron@5025: 	if (sstd != NULL) {
tron@5025: 		sstd->color = (wp->deleted ? 0xE : 11);
tron@5025: 		sstd->width = width;
tron@5025: 	}
tron@5025: }
tron@5025: 
tron@5025: 
tron@410: static void ViewportAddWaypoints(DrawPixelInfo *dpi)
truelight@0: {
tron@5025: 	const Waypoint *wp;
truelight@0: 	int left, top, right, bottom;
truelight@0: 
darkvater@395: 	if (!(_display_opt & DO_WAYPOINTS))
truelight@0: 		return;
truelight@0: 
truelight@0: 	left = dpi->left;
truelight@0: 	top = dpi->top;
truelight@0: 	right = left + dpi->width;
truelight@0: 	bottom = top + dpi->height;
truelight@0: 
tron@5027: 	switch (dpi->zoom) {
tron@5027: 		case 0:
tron@5027: 			FOR_ALL_WAYPOINTS(wp) {
tron@5027: 				if (bottom > wp->sign.top &&
tron@5027: 						top    < wp->sign.top + 12 &&
tron@5027: 						right  > wp->sign.left &&
tron@5027: 						left   < wp->sign.left + wp->sign.width_1) {
tron@5027: 					AddWaypoint(wp, STR_WAYPOINT_VIEWPORT, wp->sign.width_1);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		case 1:
tron@5027: 			right += 2;
tron@5027: 			bottom += 2;
tron@5027: 			FOR_ALL_WAYPOINTS(wp) {
tron@5027: 				if (bottom > wp->sign.top &&
tron@5027: 						top    < wp->sign.top + 24 &&
tron@5027: 						right  > wp->sign.left &&
tron@5027: 						left   < wp->sign.left + wp->sign.width_1*2) {
tron@5027: 					AddWaypoint(wp, STR_WAYPOINT_VIEWPORT, wp->sign.width_1);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
tron@5027: 
tron@5027: 		default: NOT_REACHED();
tron@5027: 		case 2:
tron@5027: 			right += 4;
tron@5027: 			bottom += 5;
tron@5027: 			FOR_ALL_WAYPOINTS(wp) {
tron@5027: 				if (bottom > wp->sign.top &&
tron@5027: 						top    < wp->sign.top + 24 &&
tron@5027: 						right  > wp->sign.left &&
tron@5027: 						left   < wp->sign.left + wp->sign.width_2*4) {
tron@5027: 					AddWaypoint(wp, STR_WAYPOINT_VIEWPORT_TINY, wp->sign.width_2 | 0x8000);
tron@5027: 				}
truelight@0: 			}
tron@5027: 			break;
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void UpdateViewportSignPos(ViewportSign *sign, int left, int top, StringID str)
truelight@0: {
truelight@0: 	char buffer[128];
tron@2116: 	uint w;
truelight@0: 
truelight@0: 	sign->top = top;
truelight@0: 
Darkvater@4912: 	GetString(buffer, str, lastof(buffer));
Darkvater@4609: 	w = GetStringBoundingBox(buffer).width + 3;
truelight@0: 	sign->width_1 = w;
tron@2116: 	sign->left = left - w / 2;
truelight@0: 
Darkvater@4609: 	/* zoomed out version */
peter1138@3798: 	_cur_fontsize = FS_SMALL;
Darkvater@4609: 	w = GetStringBoundingBox(buffer).width + 3;
peter1138@3798: 	_cur_fontsize = FS_NORMAL;
Darkvater@1390: 	sign->width_2 = w;
truelight@0: }
truelight@0: 
truelight@0: 
tron@410: static void ViewportDrawTileSprites(TileSpriteToDraw *ts)
truelight@193: {
truelight@0: 	do {
truelight@0: 		Point pt = RemapCoords(ts->x, ts->y, ts->z);
truelight@0: 		DrawSprite(ts->image, pt.x, pt.y);
tron@2116: 		ts = ts->next;
tron@2116: 	} while (ts != NULL);
truelight@0: }
truelight@0: 
belugas@4171: static void ViewportSortParentSprites(ParentSpriteToDraw *psd[])
truelight@0: {
tron@2116: 	while (*psd != NULL) {
tron@2116: 		ParentSpriteToDraw* ps = *psd;
truelight@0: 
truelight@0: 		if (!(ps->unk16 & 1)) {
tron@2116: 			ParentSpriteToDraw** psd2 = psd;
tron@2116: 
truelight@0: 			ps->unk16 |= 1;
truelight@193: 
tron@2116: 			while (*++psd2 != NULL) {
tron@2116: 				ParentSpriteToDraw* ps2 = *psd2;
tron@4188: 				ParentSpriteToDraw** psd3;
hackykid@1934: 
tron@2116: 				if (ps2->unk16 & 1) continue;
truelight@0: 
tron@4187: 				/* Decide which comparator to use, based on whether the bounding
tron@4187: 				 * boxes overlap
tron@4187: 				 */
tron@4187: 				if (ps->xmax > ps2->xmin && ps->xmin < ps2->xmax && // overlap in X?
tron@4187: 						ps->ymax > ps2->ymin && ps->ymin < ps2->ymax && // overlap in Y?
tron@4187: 						ps->zmax > ps2->zmin && ps->zmin < ps2->zmax) { // overlap in Z?
tron@4188: 					/* Use X+Y+Z as the sorting order, so sprites closer to the bottom of
tron@4188: 					 * the screen and with higher Z elevation, are drawn in front.
tron@4188: 					 * Here X,Y,Z are the coordinates of the "center of mass" of the sprite,
tron@4188: 					 * i.e. X=(left+right)/2, etc.
tron@4188: 					 * However, since we only care about order, don't actually divide / 2
tron@4188: 					 */
tron@4188: 					if (ps->xmin + ps->xmax + ps->ymin + ps->ymax + ps->zmin + ps->zmax <=
tron@4188: 							ps2->xmin + ps2->xmax + ps2->ymin + ps2->ymax + ps2->zmin + ps2->zmax) {
tron@4188: 						continue;
tron@4188: 					}
hackykid@1934: 				} else {
tron@4188: 					if (ps->xmax < ps2->xmin ||
tron@4188: 							ps->ymax < ps2->ymin ||
tron@4188: 							ps->zmax < ps2->zmin || (
tron@4188: 								ps->xmin < ps2->xmax &&
tron@4188: 								ps->ymin < ps2->ymax &&
tron@4188: 								ps->zmin < ps2->zmax
tron@4188: 							)) {
tron@4188: 						continue;
tron@4188: 					}
hackykid@1934: 				}
tron@2116: 
tron@4188: 				// Swap the two sprites ps and ps2 using bubble-sort algorithm.
tron@4188: 				psd3 = psd;
tron@4188: 				do {
tron@4188: 					ParentSpriteToDraw* temp = *psd3;
tron@4188: 					*psd3 = ps2;
tron@4188: 					ps2 = temp;
truelight@0: 
tron@4188: 					psd3++;
tron@4188: 				} while (psd3 <= psd2);
truelight@0: 			}
truelight@0: 		} else {
truelight@0: 			psd++;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@2116: static void ViewportDrawParentSprites(ParentSpriteToDraw *psd[])
truelight@0: {
tron@2116: 	for (; *psd != NULL; psd++) {
tron@2116: 		const ParentSpriteToDraw* ps = *psd;
tron@4186: 		Point pt = RemapCoords(ps->xmin, ps->ymin, ps->zmin);
tron@2116: 		const ChildScreenSpriteToDraw* cs;
truelight@0: 
truelight@0: 		DrawSprite(ps->image, pt.x, pt.y);
truelight@0: 
tron@2116: 		for (cs = ps->child; cs != NULL; cs = cs->next) {
truelight@0: 			DrawSprite(cs->image, ps->left + cs->x, ps->top + cs->y);
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@2116: static void ViewportDrawStrings(DrawPixelInfo *dpi, const StringSpriteToDraw *ss)
truelight@0: {
truelight@0: 	DrawPixelInfo dp;
truelight@0: 	byte zoom;
truelight@193: 
truelight@0: 	_cur_dpi = &dp;
truelight@0: 	dp = *dpi;
truelight@0: 
tron@2116: 	zoom = dp.zoom;
truelight@0: 	dp.zoom = 0;
truelight@0: 
truelight@0: 	dp.left >>= zoom;
truelight@0: 	dp.top >>= zoom;
truelight@0: 	dp.width >>= zoom;
truelight@0: 	dp.height >>= zoom;
truelight@0: 
truelight@0: 	do {
tron@5025: 		uint16 colour;
tron@5025: 
truelight@0: 		if (ss->width != 0) {
tron@2116: 			int x = (ss->x >> zoom) - 1;
tron@2116: 			int y = (ss->y >> zoom) - 1;
tron@2116: 			int bottom = y + 11;
tron@2116: 			int w = ss->width;
truelight@193: 
truelight@0: 			if (w & 0x8000) {
truelight@0: 				w &= ~0x8000;
truelight@0: 				y--;
truelight@0: 				bottom -= 6;
truelight@0: 				w -= 3;
truelight@0: 			}
truelight@0: 
tron@2116: 		/* Draw the rectangle if 'tranparent station signs' is off,
tron@2116: 		 * or if we are drawing a general text sign (STR_2806) */
tron@2116: 			if (!(_display_opt & DO_TRANS_SIGNS) || ss->string == STR_2806)
tron@2116: 				DrawFrameRect(
tron@2116: 					x, y, x + w, bottom, ss->color,
tron@4439: 					(_display_opt & DO_TRANS_BUILDINGS) ? FR_TRANSPARENT : 0
tron@2116: 				);
truelight@0: 		}
truelight@0: 
tron@534: 		SetDParam(0, ss->params[0]);
tron@534: 		SetDParam(1, ss->params[1]);
tron@2116: 		/* if we didn't draw a rectangle, or if transparant building is on,
tron@2116: 		 * draw the text in the color the rectangle would have */
tron@2116: 		if ((
tron@2116: 					(_display_opt & DO_TRANS_BUILDINGS) ||
tron@2116: 					(_display_opt & DO_TRANS_SIGNS && ss->string != STR_2806)
tron@2116: 				) && ss->width != 0) {
tron@2116: 			/* Real colors need the IS_PALETTE_COLOR flag
tron@2116: 			 * otherwise colors from _string_colormap are assumed. */
tron@5025: 			colour = _colour_gradient[ss->color][6] | IS_PALETTE_COLOR;
truelight@0: 		} else {
tron@5025: 			colour = 16;
truelight@0: 		}
tron@5025: 		DrawString(
tron@5025: 			ss->x >> zoom, (ss->y >> zoom) - (ss->width & 0x8000 ? 2 : 0),
tron@5025: 			ss->string, colour
tron@5025: 		);
tron@2116: 
tron@2116: 		ss = ss->next;
tron@2116: 	} while (ss != NULL);
truelight@0: }
truelight@0: 
tron@430: void ViewportDoDraw(const ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
truelight@0: 	ViewportDrawer vd;
truelight@0: 	int mask;
tron@2116: 	int x;
tron@2116: 	int y;
truelight@0: 	DrawPixelInfo *old_dpi;
truelight@0: 
truelight@0: 	byte mem[VIEWPORT_DRAW_MEM];
truelight@137: 	ParentSpriteToDraw *parent_list[6144];
truelight@0: 
truelight@0: 	_cur_vd = &vd;
truelight@0: 
truelight@0: 	old_dpi = _cur_dpi;
truelight@0: 	_cur_dpi = &vd.dpi;
truelight@0: 
truelight@0: 	vd.dpi.zoom = vp->zoom;
truelight@0: 	mask = (-1) << vp->zoom;
truelight@0: 
truelight@0: 	vd.combine_sprites = 0;
truelight@0: 
truelight@0: 	vd.dpi.width = (right - left) & mask;
truelight@0: 	vd.dpi.height = (bottom - top) & mask;
truelight@0: 	vd.dpi.left = left & mask;
truelight@0: 	vd.dpi.top = top & mask;
truelight@0: 	vd.dpi.pitch = old_dpi->pitch;
truelight@0: 
truelight@0: 	x = ((vd.dpi.left - (vp->virtual_left&mask)) >> vp->zoom) + vp->left;
truelight@0: 	y = ((vd.dpi.top - (vp->virtual_top&mask)) >> vp->zoom) + vp->top;
truelight@0: 
truelight@0: 	vd.dpi.dst_ptr = old_dpi->dst_ptr + x - old_dpi->left + (y - old_dpi->top) * old_dpi->pitch;
truelight@0: 
truelight@0: 	vd.parent_list = parent_list;
tron@2116: 	vd.eof_parent_list = endof(parent_list);
truelight@0: 	vd.spritelist_mem = mem;
tron@2116: 	vd.eof_spritelist_mem = endof(mem) - sizeof(LARGEST_SPRITELIST_STRUCT);
truelight@0: 	vd.last_string = &vd.first_string;
truelight@0: 	vd.first_string = NULL;
truelight@0: 	vd.last_tile = &vd.first_tile;
truelight@0: 	vd.first_tile = NULL;
truelight@193: 
truelight@0: 	ViewportAddLandscape();
truelight@0: #if !defined(NEW_ROTATION)
truelight@0: 	ViewportAddVehicles(&vd.dpi);
truelight@0: 	DrawTextEffects(&vd.dpi);
truelight@0: 
truelight@0: 	ViewportAddTownNames(&vd.dpi);
truelight@0: 	ViewportAddStationNames(&vd.dpi);
truelight@0: 	ViewportAddSigns(&vd.dpi);
darkvater@395: 	ViewportAddWaypoints(&vd.dpi);
truelight@0: #endif
truelight@0: 
truelight@133: 	// This assert should never happen (because the length of the parent_list
truelight@133: 	//  is checked)
tron@979: 	assert(vd.parent_list <= endof(parent_list));
truelight@133: 
tron@2116: 	if (vd.first_tile != NULL) ViewportDrawTileSprites(vd.first_tile);
truelight@0: 
truelight@0: 	/* null terminate parent sprite list */
truelight@0: 	*vd.parent_list = NULL;
truelight@0: 
truelight@0: 	ViewportSortParentSprites(parent_list);
truelight@0: 	ViewportDrawParentSprites(parent_list);
truelight@193: 
tron@2116: 	if (vd.first_string != NULL) ViewportDrawStrings(&vd.dpi, vd.first_string);
truelight@193: 
truelight@0: 	_cur_dpi = old_dpi;
truelight@0: }
truelight@0: 
truelight@0: // Make sure we don't draw a too big area at a time.
truelight@0: // If we do, the sprite memory will overflow.
Darkvater@5120: static void ViewportDrawChk(const ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
Darkvater@5417: 	if (((bottom - top) * (right - left) << (2 * vp->zoom)) > 180000) {
truelight@0: 		if ((bottom - top) > (right - left)) {
truelight@0: 			int t = (top + bottom) >> 1;
truelight@0: 			ViewportDrawChk(vp, left, top, right, t);
truelight@0: 			ViewportDrawChk(vp, left, t, right, bottom);
truelight@0: 		} else {
truelight@0: 			int t = (left + right) >> 1;
truelight@0: 			ViewportDrawChk(vp, left, top, t, bottom);
truelight@0: 			ViewportDrawChk(vp, t, top, right, bottom);
truelight@0: 		}
truelight@0: 	} else {
truelight@193: 		ViewportDoDraw(vp,
truelight@0: 			((left - vp->left) << vp->zoom) + vp->virtual_left,
truelight@0: 			((top - vp->top) << vp->zoom) + vp->virtual_top,
truelight@0: 			((right - vp->left) << vp->zoom) + vp->virtual_left,
truelight@0: 			((bottom - vp->top) << vp->zoom) + vp->virtual_top
truelight@0: 		);
truelight@0: 	}
truelight@0: }
truelight@0: 
Darkvater@5120: static inline void ViewportDraw(const ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
tron@2116: 	if (right <= vp->left || bottom <= vp->top) return;
truelight@0: 
tron@2116: 	if (left >= vp->left + vp->width) return;
truelight@0: 
truelight@0: 	if (left < vp->left) left = vp->left;
tron@2116: 	if (right > vp->left + vp->width) right = vp->left + vp->width;
truelight@0: 
tron@2116: 	if (top >= vp->top + vp->height) return;
truelight@0: 
truelight@0: 	if (top < vp->top) top = vp->top;
tron@2116: 	if (bottom > vp->top + vp->height) bottom = vp->top + vp->height;
truelight@0: 
truelight@0: 	ViewportDrawChk(vp, left, top, right, bottom);
truelight@0: }
truelight@0: 
Darkvater@5120: void DrawWindowViewport(const Window *w)
tron@2116: {
truelight@0: 	DrawPixelInfo *dpi = _cur_dpi;
truelight@0: 
truelight@0: 	dpi->left += w->left;
truelight@0: 	dpi->top += w->top;
truelight@0: 
truelight@0: 	ViewportDraw(w->viewport, dpi->left, dpi->top, dpi->left + dpi->width, dpi->top + dpi->height);
truelight@0: 
truelight@0: 	dpi->left -= w->left;
truelight@0: 	dpi->top -= w->top;
truelight@0: }
truelight@0: 
truelight@0: void UpdateViewportPosition(Window *w)
truelight@0: {
tron@2116: 	const ViewPort *vp = w->viewport;
truelight@0: 
tron@2116: 	if (WP(w, vp_d).follow_vehicle != INVALID_VEHICLE) {
tron@2116: 		const Vehicle* veh = GetVehicle(WP(w,vp_d).follow_vehicle);
tron@2116: 		Point pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
truelight@0: 
truelight@0: 		SetViewportPosition(w, pt.x, pt.y);
truelight@0: 	} else {
tron@632: #if !defined(NEW_ROTATION)
tron@632: 		int x;
tron@632: 		int y;
tron@632: 		int vx;
tron@632: 		int vy;
tron@632: 
tron@632: 		// Center of the viewport is hot spot
tron@632: 		x = WP(w,vp_d).scrollpos_x + vp->virtual_width / 2;
tron@632: 		y = WP(w,vp_d).scrollpos_y + vp->virtual_height / 2;
tron@632: 		// Convert viewport coordinates to map coordinates
tron@632: 		// Calculation is scaled by 4 to avoid rounding errors
tron@632: 		vx = -x + y * 2;
tron@632: 		vy =  x + y * 2;
tron@632: 		// clamp to size of map
celestar@3421: 		vx = clamp(vx, 0 * 4, MapMaxX() * TILE_SIZE * 4);
celestar@3421: 		vy = clamp(vy, 0 * 4, MapMaxY() * TILE_SIZE * 4);
tron@632: 		// Convert map coordinates to viewport coordinates
tron@632: 		x = (-vx + vy) / 2;
tron@632: 		y = ( vx + vy) / 4;
tron@632: 		// Set position
tron@2116: 		WP(w, vp_d).scrollpos_x = x - vp->virtual_width / 2;
tron@2116: 		WP(w, vp_d).scrollpos_y = y - vp->virtual_height / 2;
tron@632: #else
truelight@0: 		int x,y,t;
truelight@0: 		int err;
truelight@0: 
truelight@0: 		x = WP(w,vp_d).scrollpos_x >> 2;
truelight@0: 		y = WP(w,vp_d).scrollpos_y >> 1;
truelight@0: 
truelight@0: 		t = x;
truelight@0: 		x = x + y;
truelight@0: 		y = x - y;
truelight@0: 		err= 0;
truelight@0: 
truelight@0: 		if (err != 0) {
truelight@0: 			/* coordinate remap */
truelight@0: 			Point pt = RemapCoords(x, y, 0);
truelight@193: 			t = (-1) << vp->zoom;
truelight@0: 			WP(w,vp_d).scrollpos_x = pt.x & t;
truelight@0: 			WP(w,vp_d).scrollpos_y = pt.y & t;
truelight@0: 		}
tron@632: #endif
tron@632: 
tron@2116: 		SetViewportPosition(w, WP(w, vp_d).scrollpos_x, WP(w, vp_d).scrollpos_y);
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@2116: static void MarkViewportDirty(const ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
tron@2116: 	right -= vp->virtual_left;
tron@2116: 	if (right <= 0) return;
truelight@0: 
tron@2116: 	bottom -= vp->virtual_top;
tron@2116: 	if (bottom <= 0) return;
truelight@0: 
tron@2116: 	left = max(0, left - vp->virtual_left);
truelight@0: 
tron@2116: 	if (left >= vp->virtual_width) return;
truelight@0: 
tron@2116: 	top = max(0, top - vp->virtual_top);
tron@2116: 
tron@2116: 	if (top >= vp->virtual_height) return;
truelight@0: 
truelight@0: 	SetDirtyBlocks(
truelight@0: 		(left >> vp->zoom) + vp->left,
truelight@0: 		(top >> vp->zoom) + vp->top,
truelight@0: 		(right >> vp->zoom) + vp->left,
truelight@0: 		(bottom >> vp->zoom) + vp->top
truelight@0: 	);
truelight@0: }
truelight@0: 
truelight@0: void MarkAllViewportsDirty(int left, int top, int right, int bottom)
truelight@0: {
tron@2116: 	const ViewPort *vp = _viewports;
truelight@0: 	uint32 act = _active_viewports;
truelight@0: 	do {
truelight@0: 		if (act & 1) {
truelight@0: 			assert(vp->width != 0);
truelight@0: 			MarkViewportDirty(vp, left, top, right, bottom);
truelight@0: 		}
truelight@0: 	} while (vp++,act>>=1);
truelight@0: }
truelight@0: 
tron@2116: void MarkTileDirtyByTile(TileIndex tile)
tron@2116: {
celestar@3421: 	Point pt = RemapCoords(TileX(tile) * TILE_SIZE, TileY(tile) * TILE_SIZE, GetTileZ(tile));
truelight@0: 	MarkAllViewportsDirty(
truelight@0: 		pt.x - 31,
truelight@0: 		pt.y - 122,
truelight@0: 		pt.x - 31 + 67,
truelight@0: 		pt.y - 122 + 154
truelight@0: 	);
truelight@0: }
truelight@0: 
truelight@0: void MarkTileDirty(int x, int y)
truelight@0: {
tron@2116: 	uint z = 0;
truelight@0: 	Point pt;
tron@2116: 
celestar@3421: 	if (IS_INT_INSIDE(x, 0, MapSizeX() * TILE_SIZE) &&
celestar@3421: 			IS_INT_INSIDE(y, 0, MapSizeY() * TILE_SIZE))
tron@1980: 		z = GetTileZ(TileVirtXY(x, y));
truelight@0: 	pt = RemapCoords(x, y, z);
truelight@0: 
truelight@0: 	MarkAllViewportsDirty(
truelight@0: 		pt.x - 31,
truelight@0: 		pt.y - 122,
truelight@0: 		pt.x - 31 + 67,
truelight@0: 		pt.y - 122 + 154
truelight@0: 	);
truelight@193: }
truelight@0: 
tron@1093: static void SetSelectionTilesDirty(void)
truelight@0: {
truelight@0: 	int y_size, x_size;
tron@1863: 	int x = _thd.pos.x;
tron@1863: 	int y = _thd.pos.y;
truelight@0: 
tron@1863: 	x_size = _thd.size.x;
tron@1863: 	y_size = _thd.size.y;
truelight@0: 
tron@1863: 	if (_thd.outersize.x) {
tron@1863: 		x_size += _thd.outersize.x;
tron@1863: 		x += _thd.offs.x;
tron@1863: 		y_size += _thd.outersize.y;
tron@1863: 		y += _thd.offs.y;
truelight@0: 	}
truelight@0: 
truelight@0: 	assert(x_size > 0);
truelight@0: 	assert(y_size > 0);
truelight@0: 
truelight@0: 	x_size += x;
truelight@0: 	y_size += y;
truelight@0: 
truelight@0: 	do {
truelight@0: 		int y_bk = y;
truelight@0: 		do {
truelight@0: 			MarkTileDirty(x, y);
celestar@3421: 		} while ( (y += TILE_SIZE) != y_size);
truelight@0: 		y = y_bk;
celestar@3421: 	} while ( (x += TILE_SIZE) != x_size);
truelight@0: }
truelight@0: 
truelight@0: 
tron@1990: void SetSelectionRed(bool b)
tron@1990: {
tron@1990: 	_thd.make_square_red = b;
tron@1990: 	SetSelectionTilesDirty();
tron@1990: }
tron@1990: 
tron@1990: 
tron@2116: static bool CheckClickOnTown(const ViewPort *vp, int x, int y)
truelight@0: {
tron@2116: 	const Town *t;
truelight@0: 
tron@2116: 	if (!(_display_opt & DO_SHOW_TOWN_NAMES)) return false;
truelight@0: 
tron@4471: 	switch (vp->zoom) {
tron@4471: 		case 0:
tron@4471: 			x = x - vp->left + vp->virtual_left;
tron@4471: 			y = y - vp->top  + vp->virtual_top;
tron@4471: 			FOR_ALL_TOWNS(t) {
tron@4471: 				if (y >= t->sign.top &&
tron@4471: 						y < t->sign.top + 12 &&
tron@4471: 						x >= t->sign.left &&
tron@4471: 						x < t->sign.left + t->sign.width_1) {
tron@4471: 					ShowTownViewWindow(t->index);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		case 1:
tron@4471: 			x = (x - vp->left + 1) * 2 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 1) * 2 + vp->virtual_top;
tron@4471: 			FOR_ALL_TOWNS(t) {
tron@4471: 				if (y >= t->sign.top &&
tron@4471: 						y < t->sign.top + 24 &&
tron@4471: 						x >= t->sign.left &&
tron@4471: 						x < t->sign.left + t->sign.width_1 * 2) {
tron@4471: 					ShowTownViewWindow(t->index);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		default:
tron@4471: 			x = (x - vp->left + 3) * 4 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 3) * 4 + vp->virtual_top;
tron@4471: 			FOR_ALL_TOWNS(t) {
tron@4471: 				if (y >= t->sign.top &&
tron@4471: 						y < t->sign.top + 24 &&
tron@4471: 						x >= t->sign.left &&
tron@4471: 						x < t->sign.left + t->sign.width_2 * 4) {
tron@4471: 					ShowTownViewWindow(t->index);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
tron@4471: 
tron@2116: static bool CheckClickOnStation(const ViewPort *vp, int x, int y)
truelight@0: {
tron@2116: 	const Station *st;
truelight@0: 
tron@2116: 	if (!(_display_opt & DO_SHOW_STATION_NAMES)) return false;
truelight@0: 
tron@4471: 	switch (vp->zoom) {
tron@4471: 		case 0:
tron@4471: 			x = x - vp->left + vp->virtual_left;
tron@4471: 			y = y - vp->top  + vp->virtual_top;
tron@4471: 			FOR_ALL_STATIONS(st) {
tron@4471: 				if (y >= st->sign.top &&
tron@4471: 						y < st->sign.top + 12 &&
tron@4471: 						x >= st->sign.left &&
tron@4471: 						x < st->sign.left + st->sign.width_1) {
tron@4471: 					ShowStationViewWindow(st->index);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		case 1:
tron@4471: 			x = (x - vp->left + 1) * 2 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 1) * 2 + vp->virtual_top;
tron@4471: 			FOR_ALL_STATIONS(st) {
tron@4471: 				if (y >= st->sign.top &&
tron@4471: 						y < st->sign.top + 24 &&
tron@4471: 						x >= st->sign.left &&
tron@4471: 						x < st->sign.left + st->sign.width_1 * 2) {
tron@4471: 					ShowStationViewWindow(st->index);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		default:
tron@4471: 			x = (x - vp->left + 3) * 4 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 3) * 4 + vp->virtual_top;
tron@4471: 			FOR_ALL_STATIONS(st) {
tron@4471: 				if (y >= st->sign.top &&
tron@4471: 						y < st->sign.top + 24 &&
tron@4471: 						x >= st->sign.left &&
tron@4471: 						x < st->sign.left + st->sign.width_2 * 4) {
tron@4471: 					ShowStationViewWindow(st->index);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
tron@4471: 
tron@2116: static bool CheckClickOnSign(const ViewPort *vp, int x, int y)
truelight@0: {
truelight@4349: 	const Sign *si;
truelight@0: 
Darkvater@5443: 	if (!(_display_opt & DO_SHOW_SIGNS) || _current_player == PLAYER_SPECTATOR) return false;
truelight@0: 
tron@4471: 	switch (vp->zoom) {
tron@4471: 		case 0:
tron@4471: 			x = x - vp->left + vp->virtual_left;
tron@4471: 			y = y - vp->top  + vp->virtual_top;
tron@4471: 			FOR_ALL_SIGNS(si) {
tron@4471: 				if (y >= si->sign.top &&
tron@4471: 						y <  si->sign.top + 12 &&
tron@4471: 						x >= si->sign.left &&
tron@4471: 						x <  si->sign.left + si->sign.width_1) {
tron@4471: 					ShowRenameSignWindow(si);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		case 1:
tron@4471: 			x = (x - vp->left + 1) * 2 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 1) * 2 + vp->virtual_top;
tron@4471: 			FOR_ALL_SIGNS(si) {
tron@4471: 				if (y >= si->sign.top &&
tron@4471: 						y <  si->sign.top + 24 &&
tron@4471: 						x >= si->sign.left &&
tron@4471: 						x <  si->sign.left + si->sign.width_1 * 2) {
tron@4471: 					ShowRenameSignWindow(si);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		default:
tron@4471: 			x = (x - vp->left + 3) * 4 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 3) * 4 + vp->virtual_top;
tron@4471: 			FOR_ALL_SIGNS(si) {
tron@4471: 				if (y >= si->sign.top &&
tron@4471: 						y <  si->sign.top + 24 &&
tron@4471: 						x >= si->sign.left &&
tron@4471: 						x <  si->sign.left + si->sign.width_2 * 4) {
tron@4471: 					ShowRenameSignWindow(si);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
tron@4471: 
tron@2116: static bool CheckClickOnWaypoint(const ViewPort *vp, int x, int y)
truelight@0: {
tron@2116: 	const Waypoint *wp;
truelight@0: 
tron@2116: 	if (!(_display_opt & DO_WAYPOINTS)) return false;
truelight@0: 
tron@4471: 	switch (vp->zoom) {
tron@4471: 		case 0:
tron@4471: 			x = x - vp->left + vp->virtual_left;
tron@4471: 			y = y - vp->top  + vp->virtual_top;
tron@4471: 			FOR_ALL_WAYPOINTS(wp) {
tron@4471: 				if (y >= wp->sign.top &&
tron@4471: 						y < wp->sign.top + 12 &&
tron@4471: 						x >= wp->sign.left &&
tron@4471: 						x < wp->sign.left + wp->sign.width_1) {
tron@4471: 					ShowRenameWaypointWindow(wp);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		case 1:
tron@4471: 			x = (x - vp->left + 1) * 2 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 1) * 2 + vp->virtual_top;
tron@4471: 			FOR_ALL_WAYPOINTS(wp) {
tron@4471: 				if (y >= wp->sign.top &&
tron@4471: 						y < wp->sign.top + 24 &&
tron@4471: 						x >= wp->sign.left &&
tron@4471: 						x < wp->sign.left + wp->sign.width_1 * 2) {
tron@4471: 					ShowRenameWaypointWindow(wp);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
tron@4471: 
tron@4471: 		default:
tron@4471: 			x = (x - vp->left + 3) * 4 + vp->virtual_left;
tron@4471: 			y = (y - vp->top  + 3) * 4 + vp->virtual_top;
tron@4471: 			FOR_ALL_WAYPOINTS(wp) {
tron@4471: 				if (y >= wp->sign.top &&
tron@4471: 						y < wp->sign.top + 24 &&
tron@4471: 						x >= wp->sign.left &&
tron@4471: 						x < wp->sign.left + wp->sign.width_2 * 4) {
tron@4471: 					ShowRenameWaypointWindow(wp);
tron@4471: 					return true;
tron@4471: 				}
truelight@0: 			}
tron@4471: 			break;
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
truelight@0: 
tron@2116: static void CheckClickOnLandscape(const ViewPort *vp, int x, int y)
truelight@0: {
tron@2116: 	Point pt = TranslateXYToTileCoord(vp, x, y);
tron@1977: 
tron@1980: 	if (pt.x != -1) ClickTile(TileVirtXY(pt.x, pt.y));
truelight@0: }
truelight@0: 
tron@2662: 
tron@2662: static void SafeShowTrainViewWindow(const Vehicle* v)
tron@2662: {
tron@4077: 	if (!IsFrontEngine(v)) v = GetFirstVehicleInChain(v);
tron@4077: 	ShowTrainViewWindow(v);
tron@2662: }
tron@2662: 
belugas@4171: static void Nop(const Vehicle *v) {}
tron@2662: 
belugas@4171: typedef void OnVehicleClickProc(const Vehicle *v);
tron@2662: static OnVehicleClickProc* const _on_vehicle_click_proc[] = {
tron@2662: 	SafeShowTrainViewWindow,
tron@2662: 	ShowRoadVehViewWindow,
tron@2662: 	ShowShipViewWindow,
tron@2662: 	ShowAircraftViewWindow,
tron@2662: 	Nop, // Special vehicles
tron@2662: 	Nop  // Disaster vehicles
truelight@0: };
truelight@0: 
tron@2116: void HandleViewportClicked(const ViewPort *vp, int x, int y)
truelight@0: {
belugas@4171: 	const Vehicle *v;
truelight@0: 
tron@2116: 	if (CheckClickOnTown(vp, x, y)) return;
tron@2116: 	if (CheckClickOnStation(vp, x, y)) return;
tron@2116: 	if (CheckClickOnSign(vp, x, y)) return;
tron@2116: 	if (CheckClickOnWaypoint(vp, x, y)) return;
truelight@0: 	CheckClickOnLandscape(vp, x, y);
truelight@0: 
tron@2116: 	v = CheckClickOnVehicle(vp, x, y);
celestar@3809: 	if (v != NULL) {
celestar@3809: 		DEBUG(misc, 2) ("Vehicle %d at %p", v->index, v);
celestar@3809: 		_on_vehicle_click_proc[v->type - 0x10](v);
celestar@3809: 	}
truelight@0: }
truelight@0: 
tron@1093: Vehicle *CheckMouseOverVehicle(void)
truelight@0: {
belugas@4171: 	const Window *w;
belugas@4171: 	const ViewPort *vp;
truelight@0: 
truelight@0: 	int x = _cursor.pos.x;
truelight@0: 	int y = _cursor.pos.y;
truelight@0: 
truelight@0: 	w = FindWindowFromPt(x, y);
tron@2116: 	if (w == NULL) return NULL;
truelight@0: 
truelight@0: 	vp = IsPtInWindowViewport(w, x, y);
tron@2116: 	return (vp != NULL) ? CheckClickOnVehicle(vp, x, y) : NULL;
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: 
tron@1093: void PlaceObject(void)
truelight@0: {
truelight@0: 	Point pt;
truelight@0: 	Window *w;
truelight@193: 
truelight@0: 	pt = GetTileBelowCursor();
tron@2116: 	if (pt.x == -1) return;
truelight@0: 
dominik@1070: 	if (_thd.place_mode == VHM_POINT) {
truelight@0: 		pt.x += 8;
truelight@0: 		pt.y += 8;
truelight@0: 	}
truelight@0: 
truelight@0: 	_tile_fract_coords.x = pt.x & 0xF;
truelight@0: 	_tile_fract_coords.y = pt.y & 0xF;
truelight@0: 
tron@2116: 	w = GetCallbackWnd();
tron@2116: 	if (w != NULL) {
tron@2116: 		WindowEvent e;
tron@2116: 
truelight@0: 		e.event = WE_PLACE_OBJ;
belugas@4634: 		e.we.place.pt = pt;
belugas@4634: 		e.we.place.tile = TileVirtXY(pt.x, pt.y);
truelight@0: 		w->wndproc(w, &e);
truelight@0: 	}
truelight@0: }
truelight@0: 
darkvater@152: 
darkvater@152: /* scrolls the viewport in a window to a given location */
belugas@4171: bool ScrollWindowTo(int x , int y, Window *w)
darkvater@152: {
darkvater@152: 	Point pt;
darkvater@152: 
darkvater@152: 	pt = MapXYZToViewport(w->viewport, x, y, GetSlopeZ(x, y));
tron@2116: 	WP(w, vp_d).follow_vehicle = INVALID_VEHICLE;
darkvater@152: 
tron@2116: 	if (WP(w, vp_d).scrollpos_x == pt.x && WP(w, vp_d).scrollpos_y == pt.y)
tron@2116: 		return false;
darkvater@152: 
tron@2116: 	WP(w, vp_d).scrollpos_x = pt.x;
tron@2116: 	WP(w, vp_d).scrollpos_y = pt.y;
darkvater@152: 	return true;
darkvater@152: }
darkvater@152: 
darkvater@152: 
truelight@0: bool ScrollMainWindowTo(int x, int y)
truelight@0: {
truelight@4339: 	Window *w;
truelight@4339: 	bool res = ScrollWindowTo(x, y, FindWindowById(WC_MAIN_WINDOW, 0));
truelight@4339: 
truelight@4339: 	/* If a user scrolls to a tile (via what way what so ever) and already is on
truelight@4339: 	 *  that tile (e.g.: pressed twice), move the smallmap to that location,
truelight@4339: 	 *  so you directly see where you are on the smallmap. */
truelight@4339: 
truelight@4339: 	if (res) return res;
truelight@4339: 
truelight@4339: 	w = FindWindowById(WC_SMALLMAP, 0);
truelight@4339: 	if (w == NULL) return res;
truelight@4339: 
truelight@4339: 	SmallMapCenterOnCurrentPos(w);
truelight@4339: 
truelight@4339: 	return res;
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: bool ScrollMainWindowToTile(TileIndex tile)
truelight@0: {
tron@3645: 	return ScrollMainWindowTo(TileX(tile) * TILE_SIZE + TILE_SIZE / 2, TileY(tile) * TILE_SIZE + TILE_SIZE / 2);
truelight@0: }
truelight@0: 
truelight@0: void SetRedErrorSquare(TileIndex tile)
truelight@0: {
truelight@0: 	TileIndex old;
truelight@0: 
truelight@0: 	old = _thd.redsq;
truelight@0: 	_thd.redsq = tile;
truelight@0: 
truelight@0: 	if (tile != old) {
celestar@3281: 		if (tile != 0) MarkTileDirtyByTile(tile);
celestar@3281: 		if (old  != 0) MarkTileDirtyByTile(old);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void SetTileSelectSize(int w, int h)
truelight@0: {
celestar@3421: 	_thd.new_size.x = w * TILE_SIZE;
celestar@3421: 	_thd.new_size.y = h * TILE_SIZE;
tron@1863: 	_thd.new_outersize.x = 0;
tron@1863: 	_thd.new_outersize.y = 0;
truelight@0: }
truelight@0: 
tron@2116: void SetTileSelectBigSize(int ox, int oy, int sx, int sy)
tron@2116: {
celestar@3421: 	_thd.offs.x = ox * TILE_SIZE;
celestar@3421: 	_thd.offs.y = oy * TILE_SIZE;
celestar@3421: 	_thd.new_outersize.x = sx * TILE_SIZE;
celestar@3421: 	_thd.new_outersize.y = sy * TILE_SIZE;
truelight@0: }
truelight@0: 
dominik@1070: /* returns the best autorail highlight type from map coordinates */
dominik@1070: static byte GetAutorailHT(int x, int y)
dominik@1070: {
Darkvater@2710: 	return HT_RAIL | _AutorailPiece[x & 0xF][y & 0xF];
dominik@1070: }
truelight@0: 
dominik@1070: // called regular to update tile highlighting in all cases
tron@1093: void UpdateTileSelection(void)
truelight@0: {
tron@2116: 	int x1;
tron@2116: 	int y1;
truelight@0: 
tron@1863: 	_thd.new_drawstyle = 0;
truelight@0: 
tron@1863: 	if (_thd.place_mode == VHM_SPECIAL) {
tron@1863: 		x1 = _thd.selend.x;
tron@1863: 		y1 = _thd.selend.y;
truelight@0: 		if (x1 != -1) {
tron@1863: 			int x2 = _thd.selstart.x;
tron@1863: 			int y2 = _thd.selstart.y;
truelight@0: 			x1 &= ~0xF;
truelight@0: 			y1 &= ~0xF;
truelight@193: 
truelight@0: 			if (x1 >= x2) intswap(x1,x2);
truelight@0: 			if (y1 >= y2) intswap(y1,y2);
tron@1863: 			_thd.new_pos.x = x1;
tron@1863: 			_thd.new_pos.y = y1;
celestar@3421: 			_thd.new_size.x = x2 - x1 + TILE_SIZE;
celestar@3421: 			_thd.new_size.y = y2 - y1 + TILE_SIZE;
tron@1863: 			_thd.new_drawstyle = _thd.next_drawstyle;
truelight@0: 		}
tron@1863: 	} else if (_thd.place_mode != VHM_NONE) {
tron@2116: 		Point pt = GetTileBelowCursor();
truelight@0: 		x1 = pt.x;
truelight@0: 		y1 = pt.y;
truelight@0: 		if (x1 != -1) {
tron@1863: 			switch (_thd.place_mode) {
dominik@1070: 				case VHM_RECT:
tron@1863: 					_thd.new_drawstyle = HT_RECT;
dominik@1070: 					break;
dominik@1070: 				case VHM_POINT:
tron@1863: 					_thd.new_drawstyle = HT_POINT;
dominik@1070: 					x1 += 8;
dominik@1070: 					y1 += 8;
dominik@1070: 					break;
dominik@1070: 				case VHM_RAIL:
tron@1863: 					_thd.new_drawstyle = GetAutorailHT(pt.x, pt.y); // draw one highlighted tile
truelight@0: 			}
tron@1863: 			_thd.new_pos.x = x1 & ~0xF;
tron@1863: 			_thd.new_pos.y = y1 & ~0xF;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
dominik@1070: 	// redraw selection
tron@1863: 	if (_thd.drawstyle != _thd.new_drawstyle ||
tron@1863: 			_thd.pos.x != _thd.new_pos.x || _thd.pos.y != _thd.new_pos.y ||
Darkvater@4539: 			_thd.size.x != _thd.new_size.x || _thd.size.y != _thd.new_size.y ||
Darkvater@4539: 	    _thd.outersize.x != _thd.new_outersize.x ||
Darkvater@4539: 	    _thd.outersize.y != _thd.new_outersize.y) {
truelight@0: 		// clear the old selection?
tron@1863: 		if (_thd.drawstyle) SetSelectionTilesDirty();
truelight@0: 
tron@1863: 		_thd.drawstyle = _thd.new_drawstyle;
tron@1863: 		_thd.pos = _thd.new_pos;
tron@1863: 		_thd.size = _thd.new_size;
tron@1863: 		_thd.outersize = _thd.new_outersize;
tron@1863: 		_thd.dirty = 0xff;
truelight@0: 
truelight@0: 		// draw the new selection?
tron@1863: 		if (_thd.new_drawstyle) SetSelectionTilesDirty();
truelight@0: 	}
truelight@0: }
truelight@0: 
dominik@1070: // highlighting tiles while only going over them with the mouse
tron@1977: void VpStartPlaceSizing(TileIndex tile, int user)
truelight@0: {
tron@1863: 	_thd.userdata = user;
celestar@3421: 	_thd.selend.x = TileX(tile) * TILE_SIZE;
celestar@3421: 	_thd.selstart.x = TileX(tile) * TILE_SIZE;
celestar@3421: 	_thd.selend.y = TileY(tile) * TILE_SIZE;
celestar@3421: 	_thd.selstart.y = TileY(tile) * TILE_SIZE;
tron@1863: 	if (_thd.place_mode == VHM_RECT) {
tron@1863: 		_thd.place_mode = VHM_SPECIAL;
tron@1863: 		_thd.next_drawstyle = HT_RECT;
tron@1863: 	} else if (_thd.place_mode == VHM_RAIL) { // autorail one piece
tron@1863: 		_thd.place_mode = VHM_SPECIAL;
tron@1863: 		_thd.next_drawstyle = _thd.drawstyle;
truelight@0: 	} else {
tron@1863: 		_thd.place_mode = VHM_SPECIAL;
tron@1863: 		_thd.next_drawstyle = HT_POINT;
truelight@0: 	}
truelight@0: 	_special_mouse_mode = WSM_SIZING;
truelight@0: }
truelight@0: 
truelight@0: void VpSetPlaceSizingLimit(int limit)
truelight@0: {
truelight@0: 	_thd.sizelimit = limit;
truelight@0: }
truelight@0: 
Darkvater@4834: /**
Darkvater@4834: * Highlights all tiles between a set of two tiles. Used in dock and tunnel placement
Darkvater@4834: * @param from TileIndex of the first tile to highlight
Darkvater@4834: * @param to TileIndex of the last tile to highlight */
Darkvater@4834: void VpSetPresizeRange(TileIndex from, TileIndex to)
truelight@0: {
Darkvater@4834: 	uint distance = DistanceManhattan(from, to) + 1;
Darkvater@4834: 
celestar@3421: 	_thd.selend.x = TileX(to) * TILE_SIZE;
celestar@3421: 	_thd.selend.y = TileY(to) * TILE_SIZE;
celestar@3421: 	_thd.selstart.x = TileX(from) * TILE_SIZE;
celestar@3421: 	_thd.selstart.y = TileY(from) * TILE_SIZE;
tron@1863: 	_thd.next_drawstyle = HT_RECT;
Darkvater@4834: 
Darkvater@4834: 	/* show measurement only if there is any length to speak of */
Darkvater@4834: 	if (distance > 1) GuiShowTooltipsWithArgs(STR_MEASURE_LENGTH, 1, &distance);
truelight@0: }
truelight@0: 
tron@2817: static void VpStartPreSizing(void)
truelight@0: {
truelight@0: 	_thd.selend.x = -1;
truelight@0: 	_special_mouse_mode = WSM_PRESIZE;
truelight@0: }
truelight@0: 
tron@1109: /* returns information about the 2x1 piece to be build.
dominik@1070:  * The lower bits (0-3) are the track type. */
dominik@1070: static byte Check2x1AutoRail(int mode)
dominik@1070: {
dominik@1070: 	int fxpy = _tile_fract_coords.x + _tile_fract_coords.y;
tron@1863: 	int sxpy = (_thd.selend.x & 0xF) + (_thd.selend.y & 0xF);
dominik@1070: 	int fxmy = _tile_fract_coords.x - _tile_fract_coords.y;
tron@1863: 	int sxmy = (_thd.selend.x & 0xF) - (_thd.selend.y & 0xF);
dominik@1070: 
tron@2952: 	switch (mode) {
dominik@1070: 	case 0: // end piece is lower right
dominik@1070: 		if (fxpy >= 20 && sxpy <= 12) { /*SwapSelection(); DoRailroadTrack(0); */return 3; }
dominik@1070: 		if (fxmy < -3 && sxmy > 3) {/* DoRailroadTrack(0); */return 5; }
dominik@1070: 		return 1;
dominik@1070: 
dominik@1070: 	case 1:
dominik@1070: 		if (fxmy > 3 && sxmy < -3) { /*SwapSelection(); DoRailroadTrack(0); */return 4; }
dominik@1070: 		if (fxpy <= 12 && sxpy >= 20) { /*DoRailroadTrack(0); */return 2; }
dominik@1070: 		return 1;
dominik@1070: 
dominik@1070: 	case 2:
dominik@1070: 		if (fxmy > 3 && sxmy < -3) { /*DoRailroadTrack(3);*/ return 4; }
dominik@1070: 		if (fxpy >= 20 && sxpy <= 12) { /*SwapSelection(); DoRailroadTrack(0); */return 3; }
dominik@1070: 		return 0;
dominik@1070: 
dominik@1070: 	case 3:
dominik@1070: 		if (fxmy < -3 && sxmy > 3) { /*SwapSelection(); DoRailroadTrack(3);*/ return 5; }
dominik@1070: 		if (fxpy <= 12 && sxpy >= 20) { /*DoRailroadTrack(0); */return 2; }
dominik@1070: 		return 0;
dominik@1070: 	}
dominik@1070: 
dominik@1070: 	return 0; // avoids compiler warnings
dominik@1070: }
dominik@1070: 
Darkvater@4834: /** Check if the direction of start and end tile should be swapped based on
Darkvater@4834:  * the dragging-style. Default directions are:
Darkvater@4834:  * in the case of a line (HT_RAIL, HT_LINE):  DIR_NE, DIR_NW, DIR_N, DIR_E
Darkvater@4834:  * in the case of a rect (HT_RECT, HT_POINT): DIR_S, DIR_E
Darkvater@4834:  * For example dragging a rectangle area from south to north should be swapped to
Darkvater@4834:  * north-south (DIR_S) to obtain the same results with less code. This is what
Darkvater@4834:  * the return value signifies.
Darkvater@4834:  * @param style HighLightStyle dragging style
Darkvater@4834:  * @param start_tile, end_tile start and end tile of drag
Darkvater@4834:  * @param boolean value which when true means start/end should be swapped */
Darkvater@4834: static bool SwapDirection(HighLightStyle style, TileIndex start_tile, TileIndex end_tile)
Darkvater@4834: {
Darkvater@4834: 	uint start_x = TileX(start_tile);
Darkvater@4834: 	uint start_y = TileY(start_tile);
Darkvater@4834: 	uint end_x = TileX(end_tile);
Darkvater@4834: 	uint end_y = TileY(end_tile);
Darkvater@4834: 
Darkvater@4834: 	switch (style & HT_DRAG_MASK) {
Darkvater@4834: 		case HT_RAIL:
Darkvater@4834: 		case HT_LINE: return (end_x > start_x || (end_x == start_x && end_y > start_y));
Darkvater@4834: 
Darkvater@4834: 		case HT_RECT:
Darkvater@4834: 		case HT_POINT: return (end_x != start_x && end_y < start_y);
Darkvater@4834: 		default: NOT_REACHED();
Darkvater@4834: 	}
Darkvater@4834: 
Darkvater@4834: 	return false;
Darkvater@4834: }
Darkvater@4834: 
Darkvater@4834: /** Calculates height difference between one tile and another
Darkvater@4834: * Multiplies the result to suit the standard given by minimap - 50 meters high
Darkvater@4834: * To correctly get the height difference we need the direction we are dragging
Darkvater@4834: * in, as well as with what kind of tool we are dragging. For example a horizontal
Darkvater@4834: * autorail tool that starts in bottom and ends at the top of a tile will need the
Darkvater@4834: * maximum of SW,S and SE,N corners respectively. This is handled by the lookup table below
Darkvater@4834: * See _tileoffs_by_dir in map.c for the direction enums if you can't figure out
Darkvater@4834: * the values yourself.
Darkvater@4834: * @param style HightlightStyle of drag. This includes direction and style (autorail, rect, etc.)
Darkvater@4834: * @param distance amount of tiles dragged, important for horizontal/vertical drags
Darkvater@4834: *        ignored for others
Darkvater@4834: * @param start_tile, end_tile start and end tile of drag operation
Darkvater@4834: * @return height difference between two tiles. Tile measurement tool utilizes
Darkvater@4834: * this value in its tooltips */
Darkvater@4834: static int CalcHeightdiff(HighLightStyle style, uint distance, TileIndex start_tile, TileIndex end_tile)
Darkvater@4834: {
Darkvater@4834: 	bool swap = SwapDirection(style, start_tile, end_tile);
Darkvater@4834: 	byte style_t;
Darkvater@4834: 	uint h0, h1, ht; // start heigth, end height, and temp variable
Darkvater@4834: 
Darkvater@4834: 	if (start_tile == end_tile) return 0;
Darkvater@4834: 	if (swap) swap_tile(&start_tile, &end_tile);
Darkvater@4834: 
Darkvater@4834: 	switch (style & HT_DRAG_MASK) {
Darkvater@4834: 		case HT_RECT: {
Darkvater@4834: 			static const TileIndexDiffC heightdiff_area_by_dir[] = {
Darkvater@4834: 				/* Start */ {1, 0}, /* Dragging east */ {0, 0}, /* Dragging south */
Darkvater@4834: 				/* End   */ {0, 1}, /* Dragging east */ {1, 1}  /* Dragging south */
Darkvater@4834: 			};
Darkvater@4834: 
Darkvater@4834: 			/* In the case of an area we can determine whether we were dragging south or
Darkvater@4834: 			 * east by checking the X-coordinates of the tiles */
Darkvater@4834: 			style_t = (byte)(TileX(end_tile) > TileX(start_tile));
Darkvater@4834: 			start_tile = TILE_ADD(start_tile, ToTileIndexDiff(heightdiff_area_by_dir[style_t]));
Darkvater@4834: 			end_tile   = TILE_ADD(end_tile, ToTileIndexDiff(heightdiff_area_by_dir[2 + style_t]));
Darkvater@4834: 		}
Darkvater@4834: 		/* Fallthrough */
Darkvater@4834: 		case HT_POINT:
Darkvater@4834: 			h0 = TileHeight(start_tile);
Darkvater@4834: 			h1 = TileHeight(end_tile);
Darkvater@4834: 			break;
Darkvater@4834: 		default: { /* All other types, this is mostly only line/autorail */
Darkvater@4834: 			static const HighLightStyle flip_style_direction[] = {
Darkvater@4834: 				HT_DIR_X, HT_DIR_Y, HT_DIR_HL, HT_DIR_HU, HT_DIR_VR, HT_DIR_VL
Darkvater@4834: 			};
Darkvater@4834: 			static const TileIndexDiffC heightdiff_line_by_dir[] = {
Darkvater@4834: 				/* Start */ {1, 0}, {1, 1}, /* HT_DIR_X  */ {0, 1}, {1, 1}, /* HT_DIR_Y  */
Darkvater@4834: 				/* Start */ {1, 0}, {0, 0}, /* HT_DIR_HU */ {1, 0}, {1, 1}, /* HT_DIR_HL */
Darkvater@4834: 				/* Start */ {1, 0}, {1, 1}, /* HT_DIR_VL */ {0, 1}, {1, 1}, /* HT_DIR_VR */
Darkvater@4834: 
Darkvater@4834: 				/* Start */ {0, 1}, {0, 0}, /* HT_DIR_X  */ {1, 0}, {0, 0}, /* HT_DIR_Y  */
Darkvater@4834: 				/* End   */ {0, 1}, {0, 0}, /* HT_DIR_HU */ {1, 1}, {0, 1}, /* HT_DIR_HL */
Darkvater@4834: 				/* End   */ {1, 0}, {0, 0}, /* HT_DIR_VL */ {0, 0}, {0, 1}, /* HT_DIR_VR */
Darkvater@4834: 			};
Darkvater@4834: 
Darkvater@4834: 			distance %= 2; // we're only interested if the distance is even or uneven
Darkvater@4834: 			style &= HT_DIR_MASK;
Darkvater@4834: 
Darkvater@4834: 			/* To handle autorail, we do some magic to be able to use a lookup table.
Darkvater@4834: 			 * Firstly if we drag the other way around, we switch start&end, and if needed
Darkvater@4834: 			 * also flip the drag-position. Eg if it was on the left, and the distance is even
Darkvater@4834: 			 * that means the end, which is now the start is on the right */
Darkvater@4834: 			if (swap && distance == 0) style = flip_style_direction[style];
Darkvater@4834: 
Darkvater@4834: 			/* Use lookup table for start-tile based on HighLightStyle direction */
Darkvater@4834: 			style_t = style * 2;
Darkvater@4834: 			assert(style_t < lengthof(heightdiff_line_by_dir) - 13);
Darkvater@4834: 			h0 = TileHeight(TILE_ADD(start_tile, ToTileIndexDiff(heightdiff_line_by_dir[style_t])));
Darkvater@4834: 			ht = TileHeight(TILE_ADD(start_tile, ToTileIndexDiff(heightdiff_line_by_dir[style_t + 1])));
Darkvater@4834: 			h0 = maxu(h0, ht);
Darkvater@4834: 
Darkvater@4834: 			/* Use lookup table for end-tile based on HighLightStyle direction
Darkvater@4834: 			 * flip around side (lower/upper, left/right) based on distance */
Darkvater@4834: 			if (distance == 0) style_t = flip_style_direction[style] * 2;
Darkvater@4834: 			assert(style_t < lengthof(heightdiff_line_by_dir) - 13);
Darkvater@4834: 			h1 = TileHeight(TILE_ADD(end_tile, ToTileIndexDiff(heightdiff_line_by_dir[12 + style_t])));
Darkvater@4834: 			ht = TileHeight(TILE_ADD(end_tile, ToTileIndexDiff(heightdiff_line_by_dir[12 + style_t + 1])));
Darkvater@4834: 			h1 = maxu(h1, ht);
Darkvater@4834: 		} break;
Darkvater@4834: 	}
Darkvater@4834: 
Darkvater@4834: 	if (swap) swap_uint32(&h0, &h1);
Darkvater@4834: 	/* Minimap shows height in intervals of 50 meters, let's do the same */
Darkvater@4834: 	return (int)(h1 - h0) * 50;
Darkvater@4834: }
dominik@1070: 
glx@4885: static const StringID measure_strings_length[] = {STR_NULL, STR_MEASURE_LENGTH, STR_MEASURE_LENGTH_HEIGHTDIFF};
Darkvater@4884: 
dominik@1070: // while dragging
dominik@1070: static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int method)
truelight@0: {
Darkvater@4799: 	HighLightStyle b;
Darkvater@4799: 	uint w, h;
truelight@193: 
Darkvater@4799: 	int dx = thd->selstart.x - (thd->selend.x & ~0xF);
Darkvater@4799: 	int dy = thd->selstart.y - (thd->selend.y & ~0xF);
dominik@1070: 	w = myabs(dx) + 16;
dominik@1070: 	h = myabs(dy) + 16;
truelight@0: 
tron@1980: 	if (TileVirtXY(thd->selstart.x, thd->selstart.y) == TileVirtXY(x, y)) { // check if we're only within one tile
tron@4077: 		if (method == VPM_RAILDIRS) {
tron@2116: 			b = GetAutorailHT(x, y);
tron@4077: 		} else { // rect for autosignals on one tile
tron@2116: 			b = HT_RECT;
tron@4077: 		}
dominik@1070: 	} else if (h == 16) { // Is this in X direction?
tron@4077: 		if (dx == 16) { // 2x1 special handling
dominik@1070: 			b = (Check2x1AutoRail(3)) | HT_LINE;
tron@4077: 		} else if (dx == -16) {
dominik@1070: 			b = (Check2x1AutoRail(2)) | HT_LINE;
tron@4077: 		} else {
dominik@1070: 			b = HT_LINE | HT_DIR_X;
tron@4077: 		}
dominik@1070: 		y = thd->selstart.y;
dominik@1070: 	} else if (w == 16) { // Or Y direction?
tron@4077: 		if (dy == 16) { // 2x1 special handling
dominik@1070: 			b = (Check2x1AutoRail(1)) | HT_LINE;
tron@4077: 		} else if (dy == -16) { // 2x1 other direction
dominik@1070: 			b = (Check2x1AutoRail(0)) | HT_LINE;
tron@4077: 		} else {
dominik@1070: 			b = HT_LINE | HT_DIR_Y;
tron@4077: 		}
truelight@0: 		x = thd->selstart.x;
dominik@1070: 	} else if (w > h * 2) { // still count as x dir?
tron@2116: 		b = HT_LINE | HT_DIR_X;
truelight@0: 		y = thd->selstart.y;
dominik@1070: 	} else if (h > w * 2) { // still count as y dir?
tron@2116: 		b = HT_LINE | HT_DIR_Y;
dominik@1070: 		x = thd->selstart.x;
dominik@1070: 	} else { // complicated direction
Darkvater@4799: 		int d = w - h;
tron@2116: 		thd->selend.x = thd->selend.x & ~0xF;
tron@2116: 		thd->selend.y = thd->selend.y & ~0xF;
truelight@0: 
truelight@0: 		// four cases.
truelight@0: 		if (x > thd->selstart.x) {
truelight@0: 			if (y > thd->selstart.y) {
truelight@0: 				// south
tron@2116: 				if (d == 0) {
tron@2116: 					b = (x & 0xF) > (y & 0xF) ? HT_LINE | HT_DIR_VL : HT_LINE | HT_DIR_VR;
tron@2116: 				} else if (d >= 0) {
tron@2116: 					x = thd->selstart.x + h;
tron@2116: 					b = HT_LINE | HT_DIR_VL;
tron@2116: 					// return px == py || px == py + 16;
tron@2116: 				} else {
tron@2116: 					y = thd->selstart.y + w;
tron@2116: 					b = HT_LINE | HT_DIR_VR;
tron@2116: 				} // return px == py || px == py - 16;
truelight@0: 			} else {
truelight@0: 				// west
tron@2116: 				if (d == 0) {
tron@2116: 					b = (x & 0xF) + (y & 0xF) >= 0x10 ? HT_LINE | HT_DIR_HL : HT_LINE | HT_DIR_HU;
tron@2116: 				} else if (d >= 0) {
tron@2116: 					x = thd->selstart.x + h;
tron@2116: 					b = HT_LINE | HT_DIR_HL;
tron@2116: 				} else {
tron@2116: 					y = thd->selstart.y - w;
tron@2116: 					b = HT_LINE | HT_DIR_HU;
tron@2116: 				}
truelight@0: 			}
truelight@0: 		} else {
truelight@0: 			if (y > thd->selstart.y) {
truelight@0: 				// east
tron@2116: 				if (d == 0) {
tron@2116: 					b = (x & 0xF) + (y & 0xF) >= 0x10 ? HT_LINE | HT_DIR_HL : HT_LINE | HT_DIR_HU;
tron@2116: 				} else if (d >= 0) {
tron@2116: 					x = thd->selstart.x - h;
tron@2116: 					b = HT_LINE | HT_DIR_HU;
tron@2116: 					// return px == -py || px == -py - 16;
tron@2116: 				} else {
tron@2116: 					y = thd->selstart.y + w;
tron@2116: 					b = HT_LINE | HT_DIR_HL;
tron@2116: 				} // return px == -py || px == -py + 16;
truelight@0: 			} else {
truelight@0: 				// north
tron@2116: 				if (d == 0) {
tron@2116: 					b = (x & 0xF) > (y & 0xF) ? HT_LINE | HT_DIR_VL : HT_LINE | HT_DIR_VR;
tron@2116: 				} else if (d >= 0) {
tron@2116: 					x = thd->selstart.x - h;
tron@2116: 					b = HT_LINE | HT_DIR_VR;
tron@2116: 					// return px == py || px == py - 16;
tron@2116: 				} else {
tron@2116: 					y = thd->selstart.y - w;
tron@2116: 					b = HT_LINE | HT_DIR_VL;
tron@2116: 				} //return px == py || px == py + 16;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
Darkvater@4834: 
Darkvater@4834: 	if (_patches.measure_tooltip) {
Darkvater@4834: 		TileIndex t0 = TileVirtXY(thd->selstart.x, thd->selstart.y);
Darkvater@4834: 		TileIndex t1 = TileVirtXY(x, y);
Darkvater@4834: 		uint distance = DistanceManhattan(t0, t1) + 1;
Darkvater@4884: 		byte index = 0;
Darkvater@4834: 		uint params[2];
Darkvater@4834: 
Darkvater@4884: 		if (distance != 1) {
Darkvater@4884: 			int heightdiff = CalcHeightdiff(b, distance, t0, t1);
Darkvater@4884: 			/* If we are showing a tooltip for horizontal or vertical drags,
Darkvater@4884: 			 * 2 tiles have a length of 1. To bias towards the ceiling we add
Darkvater@4884: 			 * one before division. It feels more natural to count 3 lengths as 2 */
Darkvater@4884: 			if ((b & HT_DIR_MASK) != HT_DIR_X && (b & HT_DIR_MASK) != HT_DIR_Y) {
Darkvater@4884: 				distance = (distance + 1) / 2;
Darkvater@4884: 			}
Darkvater@4884: 
Darkvater@4884: 			params[index++] = distance;
Darkvater@4884: 			if (heightdiff != 0) params[index++] = heightdiff;
Darkvater@4834: 		}
Darkvater@4834: 
Darkvater@4884: 		GuiShowTooltipsWithArgs(measure_strings_length[index], index, params);
Darkvater@4834: 	}
Darkvater@4834: 
truelight@0: 	thd->selend.x = x;
truelight@0: 	thd->selend.y = y;
truelight@0: 	thd->next_drawstyle = b;
truelight@0: }
truelight@0: 
Darkvater@4799: /**
Darkvater@4799:  * Selects tiles while dragging
Darkvater@4799:  * @param x X coordinate of end of selection
Darkvater@4799:  * @param y Y coordinate of end of selection
Darkvater@4799:  * @param method modifies the way tiles are selected. Possible
Darkvater@4799:  * methods are VPM_* in viewport.h */
truelight@0: void VpSelectTilesWithMethod(int x, int y, int method)
truelight@0: {
Darkvater@4799: 	int sx, sy;
Darkvater@4834: 	HighLightStyle style;
tron@1863: 
truelight@0: 	if (x == -1) {
tron@1863: 		_thd.selend.x = -1;
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
Darkvater@4799: 	/* Special handling of drag in any (8-way) direction */
darkvater@58: 	if (method == VPM_RAILDIRS || method == VPM_SIGNALDIRS) {
tron@1863: 		_thd.selend.x = x;
tron@1863: 		_thd.selend.y = y;
tron@1863: 		CalcRaildirsDrawstyle(&_thd, x, y, method);
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
tron@2116: 	if (_thd.next_drawstyle == HT_POINT) {
Darkvater@4799: 		x += TILE_SIZE / 2;
Darkvater@4799: 		y += TILE_SIZE / 2;
tron@2116: 	}
truelight@0: 
tron@1863: 	sx = _thd.selstart.x;
tron@1863: 	sy = _thd.selstart.y;
truelight@0: 
tron@2116: 	switch (method) {
Darkvater@4834: 		case VPM_X_OR_Y: /* drag in X or Y direction */
tron@4077: 			if (myabs(sy - y) < myabs(sx - x)) {
tron@4077: 				y = sy;
Darkvater@4834: 				style = HT_DIR_X;
tron@4077: 			} else {
tron@4077: 				x = sx;
Darkvater@4834: 				style = HT_DIR_Y;
tron@4077: 			}
Darkvater@4834: 			goto calc_heightdiff_single_direction;
Darkvater@4834: 		case VPM_FIX_X: /* drag in Y direction */
Darkvater@4834: 			x = sx;
Darkvater@4834: 			style = HT_DIR_Y;
Darkvater@4834: 			goto calc_heightdiff_single_direction;
Darkvater@4834: 		case VPM_FIX_Y: /* drag in X direction */
Darkvater@4834: 			y = sy;
Darkvater@4834: 			style = HT_DIR_X;
Darkvater@4834: 
Darkvater@4834: calc_heightdiff_single_direction:;
Darkvater@4834: 			if (_patches.measure_tooltip) {
Darkvater@4834: 				TileIndex t0 = TileVirtXY(sx, sy);
Darkvater@4834: 				TileIndex t1 = TileVirtXY(x, y);
Darkvater@4834: 				uint distance = DistanceManhattan(t0, t1) + 1;
Darkvater@4884: 				byte index = 0;
Darkvater@4834: 				uint params[2];
Darkvater@4834: 
Darkvater@4884: 				if (distance != 1) {
Darkvater@4884: 					/* With current code passing a HT_LINE style to calculate the height
Darkvater@4884: 					 * difference is enough. However if/when a point-tool is created
Darkvater@4884: 					 * with this method, function should be called with new_style (below)
Darkvater@4884: 					 * instead of HT_LINE | style case HT_POINT is handled specially
Darkvater@4884: 					 * new_style := (_thd.next_drawstyle & HT_RECT) ? HT_LINE | style : _thd.next_drawstyle; */
Darkvater@4884: 					int heightdiff = CalcHeightdiff(HT_LINE | style, 0, t0, t1);
Darkvater@4884: 
Darkvater@4884: 					params[index++] = distance;
Darkvater@4884: 					if (heightdiff != 0) params[index++] = heightdiff;
Darkvater@4834: 				}
Darkvater@4884: 
Darkvater@4884: 				GuiShowTooltipsWithArgs(measure_strings_length[index], index, params);
Darkvater@4834: 			} break;
Darkvater@4834: 
Darkvater@4834: 		case VPM_X_AND_Y_LIMITED: { /* drag an X by Y constrained rect area */
Darkvater@4834: 			int limit = (_thd.sizelimit - 1) * TILE_SIZE;
tron@2116: 			x = sx + clamp(x - sx, -limit, limit);
tron@2116: 			y = sy + clamp(y - sy, -limit, limit);
Darkvater@4834: 			/* Fallthrough */
Darkvater@4884: 		case VPM_X_AND_Y: /* drag an X by Y area */
Darkvater@4834: 			if (_patches.measure_tooltip) {
Darkvater@4884: 				static const StringID measure_strings_area[] = {
Darkvater@4884: 					STR_NULL, STR_NULL, STR_MEASURE_AREA, STR_MEASURE_AREA_HEIGHTDIFF
Darkvater@4884: 				};
Darkvater@4884: 
Darkvater@4834: 				TileIndex t0 = TileVirtXY(sx, sy);
Darkvater@4834: 				TileIndex t1 = TileVirtXY(x, y);
Darkvater@4834: 				uint dx = abs(TileX(t0) - TileX(t1)) + 1;
Darkvater@4834: 				uint dy = abs(TileY(t0) - TileY(t1)) + 1;
Darkvater@4884: 				byte index = 0;
Darkvater@4834: 				uint params[3];
Darkvater@4834: 
Darkvater@4834: 				/* If dragging an area (eg dynamite tool) and it is actually a single
Darkvater@4834: 				 * row/column, change the type to 'line' to get proper calculation for height */
Darkvater@4838: 				style = _thd.next_drawstyle;
Darkvater@4834: 				if (style & HT_RECT) {
Darkvater@4834: 					if (dx == 1) {
Darkvater@4834: 						style = HT_LINE | HT_DIR_Y;
Darkvater@4834: 					} else if (dy == 1) {
Darkvater@4834: 						style = HT_LINE | HT_DIR_X;
Darkvater@4834: 					}
Darkvater@4834: 				}
Darkvater@4834: 
Darkvater@4884: 				if (dx != 1 || dy != 1) {
Darkvater@4884: 					int heightdiff = CalcHeightdiff(style, 0, t0, t1);
Darkvater@4884: 
Darkvater@4884: 					params[index++] = dx;
Darkvater@4884: 					params[index++] = dy;
Darkvater@4884: 					if (heightdiff != 0) params[index++] = heightdiff;
Darkvater@4834: 				}
Darkvater@4884: 
Darkvater@4884: 				GuiShowTooltipsWithArgs(measure_strings_area[index], index, params);
Darkvater@4834: 			}
Darkvater@4884: 		break;
Darkvater@4834: 
tron@2116: 		}
Darkvater@4834: 		default: NOT_REACHED();
truelight@0: 	}
truelight@0: 
tron@1863: 	_thd.selend.x = x;
tron@1863: 	_thd.selend.y = y;
truelight@0: }
truelight@0: 
tron@1109: // while dragging
tron@1093: bool VpHandlePlaceSizingDrag(void)
truelight@0: {
truelight@0: 	Window *w;
truelight@0: 	WindowEvent e;
truelight@193: 
tron@2116: 	if (_special_mouse_mode != WSM_SIZING) return true;
truelight@0: 
belugas@4634: 	e.we.place.userdata = _thd.userdata;
truelight@0: 
dominik@1070: 	// stop drag mode if the window has been closed
truelight@0: 	w = FindWindowById(_thd.window_class,_thd.window_number);
truelight@0: 	if (w == NULL) {
truelight@0: 		ResetObjectToPlace();
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
dominik@1070: 	// while dragging execute the drag procedure of the corresponding window (mostly VpSelectTilesWithMethod() )
truelight@0: 	if (_left_button_down) {
truelight@0: 		e.event = WE_PLACE_DRAG;
belugas@4634: 		e.we.place.pt = GetTileBelowCursor();
truelight@0: 		w->wndproc(w, &e);
truelight@0: 		return false;
truelight@0: 	}
truelight@0: 
truelight@0: 	// mouse button released..
truelight@0: 	// keep the selected tool, but reset it to the original mode.
truelight@193: 	_special_mouse_mode = WSM_NONE;
tron@2116: 	if (_thd.next_drawstyle == HT_RECT) {
dominik@1070: 		_thd.place_mode = VHM_RECT;
belugas@4634: 	} else if ((e.we.place.userdata & 0xF) == VPM_SIGNALDIRS) { // some might call this a hack... -- Dominik
tron@2116: 		_thd.place_mode = VHM_RECT;
tron@2116: 	} else if (_thd.next_drawstyle & HT_LINE) {
dominik@1070: 		_thd.place_mode = VHM_RAIL;
tron@2116: 	} else if (_thd.next_drawstyle & HT_RAIL) {
dominik@1070: 		_thd.place_mode = VHM_RAIL;
tron@2116: 	} else {
dominik@1070: 		_thd.place_mode = VHM_POINT;
tron@2116: 	}
truelight@0: 	SetTileSelectSize(1, 1);
truelight@0: 
truelight@0: 	// and call the mouseup event.
truelight@0: 	e.event = WE_PLACE_MOUSEUP;
belugas@4634: 	e.we.place.pt = _thd.selend;
belugas@4634: 	e.we.place.tile = TileVirtXY(e.we.place.pt.x, e.we.place.pt.y);
belugas@4634: 	e.we.place.starttile = TileVirtXY(_thd.selstart.x, _thd.selstart.y);
truelight@0: 	w->wndproc(w, &e);
truelight@193: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
Darkvater@1914: void SetObjectToPlaceWnd(CursorID icon, byte mode, Window *w)
truelight@0: {
Darkvater@1914: 	SetObjectToPlace(icon, mode, w->window_class, w->window_number);
truelight@0: }
truelight@0: 
truelight@0: #include "table/animcursors.h"
truelight@0: 
Darkvater@1914: void SetObjectToPlace(CursorID icon, byte mode, WindowClass window_class, WindowNumber window_num)
truelight@0: {
truelight@0: 	Window *w;
truelight@0: 
dominik@1070: 	// undo clicking on button
tron@1863: 	if (_thd.place_mode != 0) {
tron@1863: 		_thd.place_mode = 0;
tron@1863: 		w = FindWindowById(_thd.window_class, _thd.window_number);
tron@2116: 		if (w != NULL) CallWindowEventNP(w, WE_ABORT_PLACE_OBJ);
truelight@0: 	}
truelight@193: 
truelight@0: 	SetTileSelectSize(1, 1);
truelight@193: 
tron@1863: 	_thd.make_square_red = false;
truelight@0: 
dominik@1070: 	if (mode == VHM_DRAG) { // mode 4 is for dragdropping trains in the depot window
truelight@0: 		mode = 0;
truelight@0: 		_special_mouse_mode = WSM_DRAGDROP;
truelight@0: 	} else {
truelight@0: 		_special_mouse_mode = WSM_NONE;
truelight@0: 	}
truelight@0: 
tron@1863: 	_thd.place_mode = mode;
tron@1863: 	_thd.window_class = window_class;
tron@1863: 	_thd.window_number = window_num;
truelight@0: 
dominik@1070: 	if (mode == VHM_SPECIAL) // special tools, like tunnels or docks start with presizing mode
truelight@0: 		VpStartPreSizing();
truelight@193: 
truelight@0: 	if ( (int)icon < 0)
Darkvater@4334: 		SetAnimatedMouseCursor(_animcursors[~icon]);
truelight@0: 	else
truelight@0: 		SetMouseCursor(icon);
truelight@0: }
truelight@0: 
tron@1093: void ResetObjectToPlace(void)
tron@1093: {
tron@4077: 	SetObjectToPlace(SPR_CURSOR_MOUSE, VHM_NONE, 0, 0);
truelight@0: }