truelight@0: #include "stdafx.h"
truelight@0: #include "ttd.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@0: 
truelight@133: #define VIEWPORT_DRAW_MEM (65536 * 2)
truelight@0: 
truelight@0: static bool _added_tile_sprite;
truelight@0: static bool _offset_ground_sprites;
truelight@0: 
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;
truelight@835: 	uint32 params[3];
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@849: 	int32 tile_x;
tron@849: 	int32 tile_y;
tron@849: 	int32 tile_right;
tron@849: 	int32 tile_bottom;
truelight@0: 	ChildScreenSpriteToDraw *child;
truelight@0: 	byte unk16;
truelight@0: 	byte tile_z;
truelight@0: 	byte tile_z_bottom;
truelight@0: } ParentSpriteToDraw;
truelight@0: 
truelight@0: typedef struct ViewportDrawer {
truelight@0: 	DrawPixelInfo dpi;
truelight@193: 
truelight@0: 	byte *spritelist_mem, *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;
truelight@133: 	ParentSpriteToDraw **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: 	bool ground_child;
truelight@0: } ViewportDrawer;
truelight@0: 
truelight@0: static ViewportDrawer *_cur_vd;
truelight@0: 
truelight@0: TileHighlightData * const _thd_ptr = &_thd;
truelight@0: static TileInfo *_cur_ti;
truelight@0: 
truelight@0: 
truelight@0: Point MapXYZToViewport(ViewPort *vp, uint x, uint y, uint z)
truelight@0: {
truelight@0: 	Point p = RemapCoords(x, y, z);
truelight@0: 	p.x -= (vp->virtual_width>>1);
truelight@0: 	p.y -= (vp->virtual_height>>1);
truelight@0: 	return p;
truelight@0: }
truelight@0: 
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: 	byte z;
truelight@0: 	uint32 bit;
truelight@0: 
truelight@0: 	for(vp=_viewports,bit=1; ; vp++, bit<<=1) {
truelight@0: 		assert(vp!=endof(_viewports));
truelight@0: 		if (vp->width == 0)
truelight@0: 			break;
truelight@0: 	}
truelight@0: 	_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) {
truelight@0: 		Vehicle *veh;
truelight@0: 		WP(w,vp_d).follow_vehicle = (VehicleID)(follow_flags & 0xFFFF);
truelight@919: 		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 {
tron@926: 		int x = TileX(follow_flags) * 16;
tron@926: 		int y = TileY(follow_flags) * 16;
truelight@0: 		WP(w,vp_d).follow_vehicle = 0xFFFF;
truelight@0: 		z = GetSlopeZ(x,y);
truelight@0: 		pt = MapXYZToViewport(vp, x,y, z);
truelight@0: 	}
truelight@0: 
truelight@0: 	WP(w,vp_d).scrollpos_x = pt.x;
truelight@0: 	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: 
truelight@0: static void DoSetViewportPosition(Window *w, int left, int top, int width, int height)
truelight@0: {
truelight@0: 	for (; w < _last_window; w++) {
truelight@0: 		if (left + width > w->left &&
truelight@0: 				w->left+w->width > left &&
truelight@0: 				top + height > w->top &&
truelight@0: 				w->top+w->height > top) {
truelight@193: 
truelight@0: 			if (left < w->left) {
truelight@0: 				DoSetViewportPosition(w, left, top, w->left - left, height);
truelight@0: 				DoSetViewportPosition(w, 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) {
truelight@0: 				DoSetViewportPosition(w, left, top, (w->left + w->width - left), height);
truelight@0: 				DoSetViewportPosition(w, 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) {
truelight@0: 				DoSetViewportPosition(w, left, top, width, (w->top - top));
truelight@0: 				DoSetViewportPosition(w, 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) {
truelight@0: 				DoSetViewportPosition(w, left, top, width, (w->top + w->height - top));
truelight@0: 				DoSetViewportPosition(w, 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 */
truelight@0: 			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: 
truelight@0: 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: 
truelight@0: 	if (old_top == 0 && old_left == 0)
truelight@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: 
truelight@0: 	if ( (i=(left + width - _screen.width)) >= 0)
truelight@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: 
truelight@0: 		if ( (i=(top + height - _screen.height)) >= 0) {
truelight@0: 			height -= i;
truelight@0: 		}
truelight@0: 
truelight@0: 		if (height > 0)
truelight@0: 			DoSetViewportPosition(w+1, left, top, width, height);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: ViewPort *IsPtInWindowViewport(Window *w, int x, int y)
truelight@0: {
truelight@0: 	ViewPort *vp = w->viewport;
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@1095: static Point TranslateXYToTileCoord(ViewPort *vp, int x, int y)
tron@1095: {
truelight@0: 	int z;
truelight@0: 	Point pt;
truelight@0: 	int a,b;
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: 	z = GetSlopeZ(a, b) >> 1;
truelight@0: 	z = GetSlopeZ(a+z, b+z) >> 1;
truelight@0: 	z = GetSlopeZ(a+z, b+z) >> 1;
truelight@0: 	z = GetSlopeZ(a+z, b+z) >> 1;
truelight@0: 	z = GetSlopeZ(a+z, b+z) >> 1;
truelight@0: 
truelight@0: 	pt.x = a+z;
truelight@0: 	pt.y = b+z;
truelight@193: 
tron@856: 	if ((uint)pt.x >= MapMaxX() * 16 || (uint)pt.y >= MapMaxY() * 16) {
truelight@0: 		pt.x = pt.y = -1;
truelight@0: 	}
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: 
truelight@0: 	if (in)	{
darkvater@152: 		x = ( (_cursor.pos.x - vp->left ) >> 1) + (vp->width >> 2);
darkvater@152: 		y = ( (_cursor.pos.y - vp->top ) >> 1) + (vp->height >> 2);
truelight@0: 	}
truelight@0: 	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: 
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: 
truelight@0: 	assert( (image & 0x3fff) < NUM_SPRITES);
truelight@0: 
truelight@0: 	ts = (TileSpriteToDraw*)vd->spritelist_mem;
truelight@0: 	if ((byte*)ts >= vd->eof_spritelist_mem) {
truelight@0: 		DEBUG(misc, 0) ("Out of sprite mem\n");
truelight@0: 		return;
truelight@0: 	}
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: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	int t;
truelight@0: 	uint32 image_org = image;
truelight@0: 	const SpriteDimension *sd;
truelight@0: 	Point pt = RemapCoords(x, y, z);
truelight@0: 
truelight@0: 	sd = GetSpriteDimension(image & 0x3FFF);
truelight@0: 
truelight@193: 	if ((t = pt.x + sd->xoffs) >= vd->dpi.left + vd->dpi.width ||
truelight@0: 			(t + sd->xsize) <= vd->dpi.left ||
truelight@0: 			(t = pt.y + sd->yoffs) >= vd->dpi.top + vd->dpi.height ||
truelight@0: 			(t + sd->ysize) <= vd->dpi.top)
truelight@0: 		return;
truelight@0: 
truelight@0: 	AddChildSpriteScreen(image_org, 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;
truelight@0: 	const SpriteDimension *sd;
truelight@0: 	Point pt;
truelight@0: 
truelight@0: 	assert( (image & 0x3fff) < NUM_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: 
truelight@0: 	ps = (ParentSpriteToDraw*)vd->spritelist_mem;
truelight@0: 	if ((byte*)ps >= vd->eof_spritelist_mem) {
truelight@0: 		DEBUG(misc, 0) ("Out of sprite mem\n");
truelight@0: 		return;
truelight@0: 	}
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 ;)
truelight@133: 		DEBUG(misc, 0) ("Out of sprite mem (parent_list)\n");
truelight@133: 		return;
truelight@193: 	}
truelight@193: 
truelight@193: 	vd->spritelist_mem += sizeof(ParentSpriteToDraw);
truelight@0: 
truelight@0: 	ps->image = image;
truelight@0: 	ps->tile_x = x;
truelight@0: 	ps->tile_right = x + w - 1;
truelight@0: 
truelight@0: 	ps->tile_y = y;
truelight@0: 	ps->tile_bottom = y + h - 1;
truelight@0: 
truelight@0: 	ps->tile_z = z;
truelight@0: 	ps->tile_z_bottom = z + dz - 1;
truelight@0: 
truelight@0: 	pt = RemapCoords(x, y, z);
truelight@0: 
truelight@0: 	sd = GetSpriteDimension(image & 0x3FFF);
truelight@193: 	if ((ps->left = (pt.x += sd->xoffs)) >= vd->dpi.left + vd->dpi.width ||
truelight@0: 			(ps->right = (pt.x + sd->xsize)) <= vd->dpi.left ||
truelight@0: 			(ps->top = (pt.y += sd->yoffs)) >= vd->dpi.top + vd->dpi.height ||
truelight@0: 			(ps->bottom = (pt.y + sd->ysize)) <= vd->dpi.top) {
truelight@0: 		return;
truelight@0: 	}
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: 
truelight@0: 	if (vd->combine_sprites == 1) {
truelight@0: 		vd->combine_sprites = 2;
truelight@0: 	}
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: 
truelight@133: 	assert( (image & 0x3fff) < NUM_SPRITES);
truelight@0: 
truelight@0: 	cs = (ChildScreenSpriteToDraw*) vd->spritelist_mem;
truelight@0: 	if ((byte*)cs >= vd->eof_spritelist_mem) {
truelight@0: 		DEBUG(misc,0) ("Out of sprite mem\n");
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	if (vd->last_child == NULL)
truelight@0: 		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 */
truelight@835: void *AddStringToDraw(int x, int y, StringID string, uint32 params_1, uint32 params_2, uint32 params_3)
truelight@0: {
truelight@0: 	ViewportDrawer *vd = _cur_vd;
truelight@0: 	StringSpriteToDraw *ss;
truelight@0: 
truelight@0: 	ss = (StringSpriteToDraw*)vd->spritelist_mem;
truelight@0: 	if ((byte*)ss >= vd->eof_spritelist_mem) {
truelight@0: 		DEBUG(misc, 0) ("Out of sprite mem\n");
truelight@0: 		return NULL;
truelight@0: 	}
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@835: 	ss->params[2] = params_3;
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: 
truelight@0: /* Debugging code */
truelight@0: 
truelight@0: #ifdef DEBUG_TILE_PUSH
truelight@0: static int _num_push;
truelight@0: static uint _pushed_tile[200];
truelight@0: static int _pushed_track[200];
truelight@0: 
truelight@0: static uint _stored_tile[200];
truelight@0: static int _stored_track[200];
truelight@0: static int _num_stored;
truelight@0: 
tron@1093: void dbg_store_path(void)
truelight@0: {
truelight@0: 	memcpy(_stored_tile, _pushed_tile, sizeof(_stored_tile));
truelight@0: 	memcpy(_stored_track, _pushed_track, sizeof(_stored_tile));
truelight@0: 	_num_stored = _num_push;
truelight@0: 	MarkWholeScreenDirty();
truelight@0: }
truelight@0: 
truelight@0: void dbg_push_tile(uint tile, int track)
truelight@0: {
truelight@0: 	_pushed_tile[_num_push] = tile;
truelight@0: 	_pushed_track[_num_push++] = track;
truelight@0: 	dbg_store_path();
truelight@0: }
truelight@0: 
tron@1093: void dbg_pop_tile(void)
truelight@0: {
truelight@0: 	_num_push--;
truelight@0: }
truelight@0: 
truelight@0: static const uint16 _dbg_track_sprite[] = {
truelight@0: 	0x3F4,
truelight@0: 	0x3F3,
truelight@0: 	0x3F5,
truelight@0: 	0x3F6,
truelight@0: 	0x3F8,
truelight@0: 	0x3F7,
truelight@0: };
truelight@0: 
tron@410: static int dbg_draw_pushed(const TileInfo *ti)
truelight@0: {
truelight@0: 	int i;
truelight@0: 	if (ti->tile==0)
truelight@0: 		return 0;
truelight@0: 	for(i=0; i!=_num_stored; i++)
truelight@0: 		if (_stored_tile[i] == ti->tile) {
truelight@0: 			DrawGroundSpriteAt(_dbg_track_sprite[_stored_track[i]&7], ti->x, ti->y, ti->z);
truelight@0: 		}
truelight@0: 	return -1;
truelight@0: }
truelight@0: 
truelight@0: #endif
truelight@0: 
truelight@0: static void DrawSelectionSprite(uint32 image, const TileInfo *ti)
truelight@0: {
dominik@1083: 	if (_added_tile_sprite && !(_thd_ptr->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: {
truelight@0: 	const TileHighlightData *thd = _thd_ptr;
truelight@0: 
truelight@0: 	px -= thd->selstart.x;
truelight@0: 	py -= thd->selstart.y;
truelight@0: 
truelight@0: 	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]
dominik@1070: 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: 	const TileHighlightData *thd = _thd_ptr;
truelight@0: 
truelight@0: #ifdef DEBUG_TILE_PUSH
truelight@0: 	dbg_draw_pushed(ti);
truelight@0: #endif
truelight@193: 
truelight@0: 	// Draw a red error square?
truelight@0: 	if (thd->redsq != 0 && thd->redsq == (TileIndex)ti->tile) {
truelight@0: 		DrawSelectionSprite(0x030382F0 | _tileh_to_sprite[ti->tileh], ti);
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	// no selection active?
truelight@0: 	if (thd->drawstyle == 0)
truelight@0: 		return;
truelight@0: 
truelight@0: 	// Inside the inner area?
truelight@0: 	if (IS_INSIDE_1D(ti->x, thd->pos.x, thd->size.x) && IS_INSIDE_1D(ti->y, thd->pos.y, thd->size.y)) {
truelight@0: 		if (thd->drawstyle & HT_RECT) {
truelight@0: 			image = 0x2F0 + _tileh_to_sprite[ti->tileh];
truelight@0: 			if (thd->make_square_red) image |= 0x3048000;
truelight@0: 			DrawSelectionSprite(image, ti);
truelight@0: 		} else if (thd->drawstyle & HT_POINT) {
truelight@0: 			// Figure out the Z coordinate for the single dot.
truelight@0: 			byte z = ti->z;
truelight@0: 			if (ti->tileh & 8) {
truelight@193: 				z += 8;
truelight@193: 				if (!(ti->tileh & 2) && (ti->tileh & 0x10)) {
truelight@0: 					z += 8;
truelight@0: 				}
truelight@0: 			}
truelight@0: 			DrawGroundSpriteAt(_cur_dpi->zoom != 2 ? 0x306 : 0xFEE,ti->x, ti->y, z);
dominik@1070: 
dominik@1070: 		} else if (thd->drawstyle & HT_RAIL /*&& thd->place_mode == VHM_RAIL*/) { // autorail highlight piece under cursor
dominik@1070: 			int type = thd->drawstyle & 0xF;
dominik@1070: 			assert(type<=5);
dominik@1070: 			image = SPR_AUTORAIL_BASE + AutorailTilehSprite[ ti->tileh ][ AutorailType[type][0] ];
dominik@1070: 
dominik@1070: 			if (thd->make_square_red) image |= 0x3048000;
dominik@1070: 			DrawSelectionSprite(image, ti);
dominik@1070: 
dominik@1070: 		} else if (IsPartOfAutoLine(ti->x, ti->y)) { // autorail highlighting long line
dominik@1070: 				int dir = thd->drawstyle & ~0xF0;
dominik@1070: 				uint start = TILE_FROM_XY(thd->selstart.x, thd->selstart.y);
dominik@1070: 				int diffx, diffy;
dominik@1070: 				int side;
dominik@1070: 
dominik@1070: 				diffx = myabs(TileX(start)-TileX(ti->tile));
dominik@1070: 				diffy = myabs(TileY(start)-TileY(ti->tile));
tron@1109: 
dominik@1070: 				side = myabs( diffx-diffy );
dominik@1070: 				if(dir<2) side = 0;
dominik@1070: 
dominik@1070: 				image = SPR_AUTORAIL_BASE + AutorailTilehSprite[ ti->tileh ][ AutorailType[dir][side] ];
dominik@1070: 
truelight@0: 				if (thd->make_square_red) image |= 0x3048000;
truelight@0: 				DrawSelectionSprite(image, ti);
tron@1109: 			}
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	// Check if it's inside the outer area?
truelight@0: 	if (thd->outersize.x &&
truelight@0: 			thd->size.x < thd->size.x + thd->outersize.x &&
truelight@0: 			IS_INSIDE_1D(ti->x, thd->pos.x + thd->offs.x, thd->size.x + thd->outersize.x) &&
truelight@0: 			IS_INSIDE_1D(ti->y, thd->pos.y + thd->offs.y, thd->size.y + thd->outersize.y)) {
truelight@0: 		// Draw a blue rect.
truelight@0: 		DrawSelectionSprite(0x30582F0 + _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 {
truelight@0: 			FindLandscapeHeight(&ti, x_cur, y_cur);
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: 
truelight@0: 			DrawTile(&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: 
truelight@0: 	if (dpi->zoom < 1) {
truelight@0: 		FOR_ALL_TOWNS(t) {
truelight@0: 			if (t->xy &&
truelight@0: 			    bottom > t->sign.top &&
truelight@0: 					top < t->sign.top + 12 &&
truelight@0: 					right > t->sign.left &&
truelight@0: 					left < t->sign.left + t->sign.width_1) {
truelight@193: 
truelight@835: 				AddStringToDraw(t->sign.left + 1, t->sign.top + 1, _patches.population_in_label ? STR_TOWN_LABEL_POP : STR_2001, t->townnametype, t->townnameparts, t->population);
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if (dpi->zoom == 1) {
truelight@0: 		right += 2;
truelight@0: 		bottom += 2;
truelight@0: 
truelight@0: 		FOR_ALL_TOWNS(t) {
truelight@0: 			if (t->xy &&
truelight@0: 			    bottom > t->sign.top &&
truelight@0: 					top < t->sign.top + 24 &&
truelight@0: 					right > t->sign.left &&
truelight@0: 					left < t->sign.left + t->sign.width_1*2) {
truelight@193: 
truelight@835: 				AddStringToDraw(t->sign.left + 1, t->sign.top + 1, _patches.population_in_label ? STR_TOWN_LABEL_POP : STR_2001, t->townnametype, t->townnameparts, t->population);
truelight@193: 			}
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		right += 4;
truelight@0: 		bottom += 5;
truelight@0: 
truelight@0: 		assert(dpi->zoom == 2);
truelight@0: 		FOR_ALL_TOWNS(t) {
truelight@0: 			if (t->xy &&
truelight@0: 			    bottom > t->sign.top &&
truelight@0: 					top < t->sign.top + 24 &&
truelight@0: 					right > t->sign.left &&
truelight@0: 					left < t->sign.left + t->sign.width_2*4) {
truelight@193: 
truelight@835: 				AddStringToDraw(t->sign.left + 5, t->sign.top + 1, STR_2002, t->townnametype, t->townnameparts, 0);
truelight@835: 				AddStringToDraw(t->sign.left + 1, t->sign.top - 3, STR_2003, t->townnametype, t->townnameparts, 0);
truelight@193: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@410: static void ViewportAddStationNames(DrawPixelInfo *dpi)
truelight@0: {
truelight@0: 	int left, top, right, bottom;
truelight@0: 	Station *st;
truelight@0: 	StringSpriteToDraw *sstd;
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: 
truelight@0: 	if (dpi->zoom < 1) {
truelight@0: 		FOR_ALL_STATIONS(st) {
truelight@0: 			if (st->xy &&
truelight@0: 			    bottom > st->sign.top &&
truelight@0: 					top < st->sign.top + 12 &&
truelight@0: 					right > st->sign.left &&
truelight@0: 					left < st->sign.left + st->sign.width_1) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(st->sign.left + 1, st->sign.top + 1, STR_305C_0, st->index, st->facilities, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->color = (st->owner == OWNER_NONE || !st->facilities) ? 0xE : _player_colors[st->owner];
truelight@0: 					sstd->width = st->sign.width_1;
truelight@0: 				}
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if (dpi->zoom == 1) {
truelight@0: 		right += 2;
truelight@0: 		bottom += 2;
truelight@0: 
truelight@0: 		FOR_ALL_STATIONS(st) {
truelight@0: 			if (st->xy &&
truelight@0: 			    bottom > st->sign.top &&
truelight@0: 					top < st->sign.top + 24 &&
truelight@0: 					right > st->sign.left &&
truelight@0: 					left < st->sign.left + st->sign.width_1*2) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(st->sign.left + 1, st->sign.top + 1, STR_305C_0, st->index, st->facilities, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->color = (st->owner == OWNER_NONE || !st->facilities) ? 0xE : _player_colors[st->owner];
truelight@0: 					sstd->width = st->sign.width_1;
truelight@0: 				}
truelight@0: 			}
truelight@0: 		}
truelight@0: 
truelight@0: 	} else {
truelight@0: 		assert(dpi->zoom == 2);
truelight@0: 
truelight@0: 		right += 4;
truelight@0: 		bottom += 5;
truelight@0: 
truelight@0: 		FOR_ALL_STATIONS(st) {
truelight@0: 			if (st->xy &&
truelight@0: 			    bottom > st->sign.top &&
truelight@0: 					top < st->sign.top + 24 &&
truelight@0: 					right > st->sign.left &&
truelight@0: 					left < st->sign.left + st->sign.width_2*4) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(st->sign.left + 1, st->sign.top + 1, STR_305D_0, st->index, st->facilities, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->color = (st->owner == OWNER_NONE || !st->facilities) ? 0xE : _player_colors[st->owner];
truelight@0: 					sstd->width = st->sign.width_2 | 0x8000;
truelight@0: 				}
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@410: static void ViewportAddSigns(DrawPixelInfo *dpi)
truelight@0: {
truelight@0: 	SignStruct *ss;
truelight@0: 	int left, top, right, bottom;
truelight@0: 	StringSpriteToDraw *sstd;
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: 
truelight@0: 	if (dpi->zoom < 1) {
truelight@988: 		FOR_ALL_SIGNS(ss) {
truelight@0: 			if (ss->str &&
truelight@0: 					bottom > ss->sign.top &&
truelight@0: 					top < ss->sign.top + 12 &&
truelight@0: 					right > ss->sign.left &&
truelight@0: 					left < ss->sign.left + ss->sign.width_1) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(ss->sign.left + 1, ss->sign.top + 1, STR_2806, ss->str, 0, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->width = ss->sign.width_1;
dominik@1165: 					sstd->color = (ss->owner==OWNER_NONE)?14:_player_colors[ss->owner];
truelight@0: 				}
truelight@0: 			}
truelight@193: 		}
truelight@0: 	} else if (dpi->zoom == 1) {
truelight@0: 		right += 2;
truelight@0: 		bottom += 2;
truelight@988: 		FOR_ALL_SIGNS(ss) {
truelight@0: 			if (ss->str &&
truelight@0: 					bottom > ss->sign.top &&
truelight@0: 					top < ss->sign.top + 24 &&
truelight@0: 					right > ss->sign.left &&
truelight@0: 					left < ss->sign.left + ss->sign.width_1*2) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(ss->sign.left + 1, ss->sign.top + 1, STR_2806, ss->str, 0, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->width = ss->sign.width_1;
dominik@1172: 					sstd->color = (ss->owner==OWNER_NONE)?14:_player_colors[ss->owner];
truelight@0: 				}
truelight@0: 			}
truelight@193: 		}
truelight@0: 	} else {
truelight@0: 		right += 4;
truelight@0: 		bottom += 5;
truelight@0: 
truelight@988: 		FOR_ALL_SIGNS(ss) {
truelight@0: 			if (ss->str &&
truelight@0: 					bottom > ss->sign.top &&
truelight@0: 					top < ss->sign.top + 24 &&
truelight@0: 					right > ss->sign.left &&
truelight@0: 					left < ss->sign.left + ss->sign.width_2*4) {
truelight@193: 
dominik@1172: 				sstd=AddStringToDraw(ss->sign.left + 1, ss->sign.top + 1, STR_2002, ss->str, 0, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->width = ss->sign.width_2 | 0x8000;
dominik@1172: 					sstd->color = (ss->owner==OWNER_NONE)?14:_player_colors[ss->owner];
truelight@0: 				}
truelight@0: 			}
truelight@193: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@410: static void ViewportAddWaypoints(DrawPixelInfo *dpi)
truelight@0: {
darkvater@395: 	Waypoint *cp;
truelight@0: 
truelight@0: 	int left, top, right, bottom;
truelight@0: 	StringSpriteToDraw *sstd;
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: 
truelight@0: 	if (dpi->zoom < 1) {
darkvater@395: 		for(cp=_waypoints; cp != endof(_waypoints); cp++) {
truelight@0: 			if (cp->xy &&
truelight@0: 					bottom > cp->sign.top &&
truelight@0: 					top < cp->sign.top + 12 &&
truelight@0: 					right > cp->sign.left &&
truelight@0: 					left < cp->sign.left + cp->sign.width_1) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(cp->sign.left + 1, cp->sign.top + 1, STR_WAYPOINT_VIEWPORT, cp - _waypoints, 0, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->width = cp->sign.width_1;
truelight@0: 					sstd->color = (cp->deleted ? 0xE : 11);
truelight@0: 				}
truelight@0: 			}
truelight@193: 		}
truelight@0: 	} else if (dpi->zoom == 1) {
truelight@0: 		right += 2;
truelight@0: 		bottom += 2;
darkvater@395: 		for(cp=_waypoints; cp != endof(_waypoints); cp++) {
truelight@0: 			if (cp->xy &&
truelight@0: 					bottom > cp->sign.top &&
truelight@0: 					top < cp->sign.top + 24 &&
truelight@0: 					right > cp->sign.left &&
truelight@0: 					left < cp->sign.left + cp->sign.width_1*2) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(cp->sign.left + 1, cp->sign.top + 1, STR_WAYPOINT_VIEWPORT, cp - _waypoints, 0, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->width = cp->sign.width_1;
truelight@0: 					sstd->color = (cp->deleted ? 0xE : 11);
truelight@0: 				}
truelight@0: 			}
truelight@193: 		}
truelight@0: 	} else {
truelight@0: 		right += 4;
truelight@0: 		bottom += 5;
truelight@0: 
darkvater@395: 		for(cp=_waypoints; cp != endof(_waypoints); cp++) {
truelight@0: 			if (cp->xy &&
truelight@0: 					bottom > cp->sign.top &&
truelight@0: 					top < cp->sign.top + 24 &&
truelight@0: 					right > cp->sign.left &&
truelight@0: 					left < cp->sign.left + cp->sign.width_2*4) {
truelight@193: 
truelight@835: 				sstd=AddStringToDraw(cp->sign.left + 1, cp->sign.top + 1, STR_WAYPOINT_VIEWPORT_TINY, cp - _waypoints, 0, 0);
truelight@0: 				if (sstd != NULL) {
truelight@0: 					sstd->width = cp->sign.width_2 | 0x8000;
truelight@0: 					sstd->color = (cp->deleted ? 0xE : 11);
truelight@0: 				}
truelight@0: 			}
truelight@193: 		}
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];
truelight@0: 	int w;
truelight@0: 
truelight@0: 	sign->top = top;
truelight@0: 
truelight@0: 	GetString(buffer, str);
truelight@0: 	w = GetStringWidth(buffer) + 3;
truelight@0: 	sign->width_1 = w;
truelight@0: 	sign->left = left - (w >> 1);
truelight@0: 
truelight@0: 	_stringwidth_base = 0xE0;
truelight@0: 	w = GetStringWidth(buffer);
truelight@0: 	_stringwidth_base = 0;
truelight@0: 	sign->width_2 = w + 1;
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);
truelight@0: 	} while ( (ts = ts->next) != NULL);
truelight@0: }
truelight@0: 
tron@410: static void ViewportSortParentSprites(ParentSpriteToDraw **psd)
truelight@0: {
truelight@0: 	ParentSpriteToDraw *ps, *ps2,*ps3, **psd2, **psd3;
truelight@0: 
truelight@0: 	while((ps=*psd) != NULL) {
truelight@0: 		if (!(ps->unk16 & 1)) {
truelight@0: 			ps->unk16 |= 1;
truelight@0: 			psd2 = psd;
truelight@193: 
truelight@0: 			while ( (ps2=*++psd2) != NULL) {
truelight@0: 				if (ps2->unk16 & 1)
truelight@0: 					continue;
truelight@0: 
truelight@0: 				if (ps->tile_right >= ps2->tile_x &&
truelight@0: 						ps->tile_bottom >= ps2->tile_y &&
truelight@0: 						ps->tile_z_bottom >= ps2->tile_z && (
truelight@0: 						ps->tile_x >= ps2->tile_right ||
truelight@0: 						ps->tile_y >= ps2->tile_bottom ||
truelight@0: 						ps->tile_z >= ps2->tile_z_bottom
truelight@0: 						)) {
truelight@0: 					psd3 = psd;
truelight@0: 					do {
truelight@0: 						ps3 = *psd3;
truelight@0: 						*psd3 = ps2;
truelight@0: 						ps2 = ps3;
truelight@0: 
truelight@0: 						psd3++;
truelight@0: 					} while (psd3 <= psd2);
truelight@0: 				}
truelight@0: 			}
truelight@0: 		} else {
truelight@0: 			psd++;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@410: static void ViewportDrawParentSprites(ParentSpriteToDraw **psd)
truelight@0: {
truelight@0: 	ParentSpriteToDraw *ps;
truelight@0: 	ChildScreenSpriteToDraw *cs;
truelight@0: 
truelight@0: 	for (;(ps=*psd) != NULL;psd++) {
truelight@0: 		Point pt = RemapCoords(ps->tile_x, ps->tile_y, ps->tile_z);
truelight@0: 		DrawSprite(ps->image, pt.x, pt.y);
truelight@0: 
truelight@0: 		cs = ps->child;
truelight@0: 		while (cs) {
truelight@0: 			DrawSprite(cs->image, ps->left + cs->x, ps->top + cs->y);
truelight@0: 			cs = cs->next;
truelight@0: 		}
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@410: static void ViewportDrawStrings(DrawPixelInfo *dpi, 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: 
truelight@0: 	zoom = (byte)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 {
truelight@0: 		if (ss->width != 0) {
truelight@0: 			int x, y, w, bottom;
truelight@193: 
truelight@0: 			x = (ss->x >> zoom) - 1;
truelight@0: 			y = (ss->y >> zoom) - 1;
truelight@0: 
truelight@0: 			bottom = y + 11;
truelight@0: 
truelight@0: 			w = ss->width;
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@497: 			DrawFrameRect(x,y, x+w, bottom, ss->color, (_display_opt & DO_TRANS_BUILDINGS) ? 0x9 : 0);
truelight@0: 		}
truelight@0: 
tron@534: 		SetDParam(0, ss->params[0]);
tron@534: 		SetDParam(1, ss->params[1]);
truelight@835: 		SetDParam(2, ss->params[2]);
tron@497: 		if (_display_opt & DO_TRANS_BUILDINGS && ss->width != 0) {
dominik@657: 			/* Real colors need the IS_PALETTE_COLOR flag, otherwise colors from _string_colormap are assumed. */
truelight@835: 			DrawString(ss->x >> zoom, (ss->y >> zoom) - (ss->width&0x8000?2:0), ss->string,
dominik@657: 			           (_color_list[ss->color].window_color_bgb | IS_PALETTE_COLOR));
truelight@0: 		} else {
truelight@0: 			DrawString(ss->x >> zoom, (ss->y >> zoom) - (ss->width&0x8000?2:0), ss->string, 16);
truelight@0: 		}
truelight@0: 	} while ( (ss = ss->next) != NULL);
truelight@0: 
truelight@0: 	_cur_dpi = dpi;
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;
truelight@0: 	int x,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: 	vd.ground_child = 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;
truelight@133: 	vd.eof_parent_list = &parent_list[lengthof(parent_list)];
truelight@0: 	vd.spritelist_mem = mem;
truelight@0: 	vd.eof_spritelist_mem = &mem[sizeof(mem) - 0x40];
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: 
truelight@0: 	if (vd.first_tile != NULL)
truelight@0: 		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: 
truelight@0: 	if (vd.first_string != NULL)
truelight@0: 		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.
truelight@0: static void ViewportDrawChk(ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
truelight@0: 	if (((bottom - top) * (right - left) << 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: 
tron@500: static inline void ViewportDraw(ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
truelight@0: 	int t;
truelight@0: 
truelight@0: 	if (right <= vp->left ||
truelight@0: 			bottom <= vp->top)
truelight@0: 				return;
truelight@0: 
truelight@0: 	if (left >= (t=vp->left + vp->width))
truelight@0: 		return;
truelight@0: 
truelight@0: 	if (left < vp->left) left = vp->left;
truelight@0: 	if (right > t) right = t;
truelight@0: 
truelight@0: 	if (top >= (t = vp->top + vp->height))
truelight@0: 		return;
truelight@0: 
truelight@0: 	if (top < vp->top) top = vp->top;
truelight@0: 	if (bottom > t) bottom = t;
truelight@0: 
truelight@0: 	ViewportDrawChk(vp, left, top, right, bottom);
truelight@0: }
truelight@0: 
truelight@0: void DrawWindowViewport(Window *w) {
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: 
truelight@0: void UpdateViewportPosition(Window *w)
truelight@0: {
truelight@0: 	ViewPort *vp = w->viewport;
truelight@0: 
truelight@0: 	if (WP(w,vp_d).follow_vehicle != 0xFFFF) {
truelight@0: 		Vehicle *veh;
truelight@0: 		Point pt;
truelight@0: 
truelight@919: 		veh = GetVehicle(WP(w,vp_d).follow_vehicle);
truelight@0: 		pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
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
tron@856: 		vx = clamp(vx, 0 * 4, MapMaxX() * 16 * 4);
tron@856: 		vy = clamp(vy, 0 * 4, MapMaxY() * 16 * 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@632: 		WP(w,vp_d).scrollpos_x = x - vp->virtual_width / 2;
tron@632: 		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: 
truelight@0: 		SetViewportPosition(w, WP(w,vp_d).scrollpos_x, WP(w,vp_d).scrollpos_y);
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@410: static void MarkViewportDirty(ViewPort *vp, int left, int top, int right, int bottom)
truelight@0: {
truelight@0: 	if ( (right -= vp->virtual_left) <= 0)
truelight@0: 		return;
truelight@0: 
truelight@0: 	if ( (bottom -= vp->virtual_top) <= 0)
truelight@0: 		return;
truelight@0: 
truelight@0: 	if ( (left -= vp->virtual_left) < 0)
truelight@0: 		left = 0;
truelight@0: 
truelight@0: 	if ((uint)left >= (uint)vp->virtual_width)
truelight@0: 		return;
truelight@0: 
truelight@0: 	if ( (top -= vp->virtual_top) < 0)
truelight@0: 		top = 0;
truelight@0: 
truelight@0: 	if ((uint)top >= (uint)vp->virtual_height)
truelight@0: 		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: {
truelight@0: 	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: 
truelight@0: void MarkTileDirtyByTile(TileIndex tile) {
tron@926: 	Point pt = RemapCoords(TileX(tile) * 16, TileY(tile) * 16, 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: {
truelight@0: 	int z = 0;
truelight@0: 	Point pt;
tron@863: 	if (IS_INT_INSIDE(x, 0, MapSizeX() * 16) &&
tron@863: 			IS_INT_INSIDE(y, 0, MapSizeY() * 16))
truelight@0: 		z = GetTileZ(TILE_FROM_XY(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;
truelight@0: 	TileHighlightData *thd = _thd_ptr;
truelight@0: 	int x = thd->pos.x;
truelight@0: 	int y = thd->pos.y;
truelight@0: 
truelight@0: 	x_size=thd->size.x;
truelight@0: 	y_size=thd->size.y;
truelight@0: 
truelight@0: 	if (thd->outersize.x) {
truelight@0: 		x_size += thd->outersize.x;
truelight@0: 		x += thd->offs.x;
truelight@0: 		y_size += thd->outersize.y;
truelight@0: 		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);
truelight@0: 		} while ( (y+=16) != y_size);
truelight@0: 		y = y_bk;
truelight@0: 	} while ( (x+=16) != x_size);
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: static bool CheckClickOnTown(ViewPort *vp, int x, int y)
truelight@0: {
truelight@0: 	Town *t;
truelight@0: 
truelight@0: 	if (!(_display_opt & DO_SHOW_TOWN_NAMES))
truelight@0: 		return false;
truelight@0: 
truelight@0: 	if (vp->zoom < 1) {
truelight@0: 		x = x - vp->left + vp->virtual_left;
truelight@193: 		y = y - vp->top + vp->virtual_top;
truelight@193: 
truelight@0: 		FOR_ALL_TOWNS(t) {
truelight@0: 			if (t->xy &&
truelight@0: 			    y >= t->sign.top &&
truelight@0: 					y < t->sign.top + 12 &&
truelight@0: 					x >= t->sign.left &&
truelight@0: 					x < t->sign.left + t->sign.width_1) {
truelight@0: 				ShowTownViewWindow(t->index);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if (vp->zoom == 1) {
truelight@0: 		x = (x - vp->left + 1) * 2 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 1) * 2 + vp->virtual_top;
truelight@0: 		FOR_ALL_TOWNS(t) {
truelight@0: 			if (t->xy &&
truelight@0: 			    y >= t->sign.top &&
truelight@0: 					y < t->sign.top + 24 &&
truelight@0: 					x >= t->sign.left &&
truelight@0: 					x < t->sign.left + t->sign.width_1 * 2) {
truelight@0: 				ShowTownViewWindow(t->index);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		x = (x - vp->left + 3) * 4 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 3) * 4 + vp->virtual_top;
truelight@0: 		FOR_ALL_TOWNS(t) {
truelight@0: 			if (t->xy &&
truelight@0: 			    y >= t->sign.top &&
truelight@0: 					y < t->sign.top + 24 &&
truelight@0: 					x >= t->sign.left &&
truelight@0: 					x < t->sign.left + t->sign.width_2 * 4) {
truelight@0: 				ShowTownViewWindow(t->index);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
truelight@0: static bool CheckClickOnStation(ViewPort *vp, int x, int y)
truelight@0: {
truelight@0: 	Station *st;
truelight@0: 
truelight@0: 	if (!(_display_opt & DO_SHOW_STATION_NAMES))
truelight@0: 		return false;
truelight@0: 
truelight@0: 	if (vp->zoom < 1) {
truelight@0: 		x = x - vp->left + vp->virtual_left;
truelight@193: 		y = y - vp->top + vp->virtual_top;
truelight@0: 
truelight@0: 		FOR_ALL_STATIONS(st) {
truelight@0: 			if (st->xy &&
truelight@0: 			    y >= st->sign.top &&
truelight@0: 					y < st->sign.top + 12 &&
truelight@0: 					x >= st->sign.left &&
truelight@0: 					x < st->sign.left + st->sign.width_1) {
truelight@0: 				ShowStationViewWindow(st->index);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if (vp->zoom == 1) {
truelight@0: 		x = (x - vp->left + 1) * 2 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 1) * 2 + vp->virtual_top;
truelight@0: 		FOR_ALL_STATIONS(st) {
truelight@0: 			if (st->xy &&
truelight@0: 			    y >= st->sign.top &&
truelight@0: 					y < st->sign.top + 24 &&
truelight@0: 					x >= st->sign.left &&
truelight@0: 					x < st->sign.left + st->sign.width_1 * 2) {
truelight@0: 				ShowStationViewWindow(st->index);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		x = (x - vp->left + 3) * 4 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 3) * 4 + vp->virtual_top;
truelight@0: 		FOR_ALL_STATIONS(st) {
truelight@0: 			if (st->xy &&
truelight@0: 			    y >= st->sign.top &&
truelight@0: 					y < st->sign.top + 24 &&
truelight@0: 					x >= st->sign.left &&
truelight@0: 					x < st->sign.left + st->sign.width_2 * 4) {
truelight@0: 				ShowStationViewWindow(st->index);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
truelight@0: static bool CheckClickOnSign(ViewPort *vp, int x, int y)
truelight@0: {
truelight@0: 	SignStruct *ss;
truelight@0: 
truelight@0: 	if (!(_display_opt & DO_SHOW_SIGNS))
truelight@0: 		return false;
truelight@0: 
truelight@0: 	if (vp->zoom < 1) {
truelight@0: 		x = x - vp->left + vp->virtual_left;
truelight@193: 		y = y - vp->top + vp->virtual_top;
truelight@0: 
truelight@988: 		FOR_ALL_SIGNS(ss) {
truelight@0: 			if (ss->str &&
truelight@0: 			    y >= ss->sign.top &&
truelight@0: 					y < ss->sign.top + 12 &&
truelight@0: 					x >= ss->sign.left &&
truelight@0: 					x < ss->sign.left + ss->sign.width_1) {
truelight@0: 				ShowRenameSignWindow(ss);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if (vp->zoom == 1) {
truelight@0: 		x = (x - vp->left + 1) * 2 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 1) * 2 + vp->virtual_top;
truelight@988: 		FOR_ALL_SIGNS(ss) {
truelight@0: 			if (ss->str &&
truelight@0: 			    y >= ss->sign.top &&
truelight@0: 					y < ss->sign.top + 24 &&
truelight@0: 					x >= ss->sign.left &&
truelight@0: 					x < ss->sign.left + ss->sign.width_1 * 2) {
truelight@0: 				ShowRenameSignWindow(ss);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		x = (x - vp->left + 3) * 4 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 3) * 4 + vp->virtual_top;
truelight@988: 		FOR_ALL_SIGNS(ss) {
truelight@0: 			if (ss->str &&
truelight@0: 			    y >= ss->sign.top &&
truelight@0: 					y < ss->sign.top + 24 &&
truelight@0: 					x >= ss->sign.left &&
truelight@0: 					x < ss->sign.left + ss->sign.width_2 * 4) {
truelight@0: 				ShowRenameSignWindow(ss);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
darkvater@395: static bool CheckClickOnWaypoint(ViewPort *vp, int x, int y)
truelight@0: {
darkvater@395: 	Waypoint *cp;
truelight@0: 
darkvater@395: 	if (!(_display_opt & DO_WAYPOINTS))
truelight@0: 		return false;
truelight@0: 
truelight@0: 	if (vp->zoom < 1) {
truelight@0: 		x = x - vp->left + vp->virtual_left;
truelight@193: 		y = y - vp->top + vp->virtual_top;
truelight@0: 
darkvater@395: 		for(cp = _waypoints; cp != endof(_waypoints); cp++) {
truelight@0: 			if (cp->xy &&
truelight@0: 			    y >= cp->sign.top &&
truelight@0: 					y < cp->sign.top + 12 &&
truelight@0: 					x >= cp->sign.left &&
truelight@0: 					x < cp->sign.left + cp->sign.width_1) {
darkvater@395: 				ShowRenameWaypointWindow(cp);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else if (vp->zoom == 1) {
truelight@0: 		x = (x - vp->left + 1) * 2 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 1) * 2 + vp->virtual_top;
darkvater@395: 		for(cp = _waypoints; cp != endof(_waypoints); cp++) {
truelight@0: 			if (cp->xy &&
truelight@0: 			    y >= cp->sign.top &&
truelight@0: 					y < cp->sign.top + 24 &&
truelight@0: 					x >= cp->sign.left &&
truelight@0: 					x < cp->sign.left + cp->sign.width_1 * 2) {
darkvater@395: 				ShowRenameWaypointWindow(cp);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	} else {
truelight@0: 		x = (x - vp->left + 3) * 4 + vp->virtual_left;
truelight@193: 		y = (y - vp->top + 3) * 4 + vp->virtual_top;
darkvater@395: 		for(cp = _waypoints; cp != endof(_waypoints); cp++) {
truelight@0: 			if (cp->xy &&
truelight@0: 			    y >= cp->sign.top &&
truelight@0: 					y < cp->sign.top + 24 &&
truelight@0: 					x >= cp->sign.left &&
truelight@0: 					x < cp->sign.left + cp->sign.width_2 * 4) {
darkvater@395: 				ShowRenameWaypointWindow(cp);
truelight@0: 				return true;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: static void CheckClickOnLandscape(ViewPort *vp, int x, int y)
truelight@0: {
truelight@0: 	Point pt = TranslateXYToTileCoord(vp,x,y);
truelight@0: 	if (pt.x != -1) {
truelight@0: 		uint tile = TILE_FROM_XY(pt.x, pt.y);
truelight@0: 		ClickTile(tile);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void HandleClickOnTrain(Vehicle *v);
truelight@0: void HandleClickOnRoadVeh(Vehicle *v);
truelight@0: void HandleClickOnAircraft(Vehicle *v);
truelight@0: void HandleClickOnShip(Vehicle *v);
tron@1095: static void HandleClickOnSpecialVeh(Vehicle *v) {}
truelight@0: void HandleClickOnDisasterVeh(Vehicle *v);
truelight@0: typedef void OnVehicleClickProc(Vehicle *v);
truelight@0: static OnVehicleClickProc * const _on_vehicle_click_proc[6] = {
truelight@0: 	HandleClickOnTrain,
truelight@0: 	HandleClickOnRoadVeh,
truelight@0: 	HandleClickOnShip,
truelight@0: 	HandleClickOnAircraft,
truelight@0: 	HandleClickOnSpecialVeh,
truelight@0: 	HandleClickOnDisasterVeh,
truelight@0: };
truelight@0: 
truelight@0: void HandleViewportClicked(ViewPort *vp, int x, int y)
truelight@0: {
truelight@0: 	if (CheckClickOnTown(vp, x, y))
truelight@0: 		return;
truelight@0: 
truelight@0: 	if (CheckClickOnStation(vp, x, y))
truelight@0: 		return;
truelight@0: 
truelight@0: 	if (CheckClickOnSign(vp, x, y))
truelight@0: 		return;
truelight@0: 
darkvater@395: 	if (CheckClickOnWaypoint(vp, x, y))
truelight@0: 		return;
truelight@0: 
truelight@0: 	CheckClickOnLandscape(vp, x, y);
truelight@0: 
truelight@0: 	{
truelight@0: 		Vehicle *v = CheckClickOnVehicle(vp, x, y);
truelight@0: 		if (v) _on_vehicle_click_proc[v->type - 0x10](v);
truelight@0: 	}
truelight@0: }
truelight@0: 
tron@1093: Vehicle *CheckMouseOverVehicle(void)
truelight@0: {
truelight@0: 	Window *w;
truelight@0: 	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);
truelight@0: 	if (w == NULL)
truelight@0: 		return NULL;
truelight@0: 
truelight@0: 	vp = IsPtInWindowViewport(w, x, y);
truelight@0: 	if (vp) {
truelight@0: 		return CheckClickOnVehicle(vp, x, y);
truelight@0: 	} else {
truelight@0: 		return NULL;
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: 
tron@1093: void PlaceObject(void)
truelight@0: {
truelight@0: 	Point pt;
truelight@0: 	Window *w;
truelight@0: 	WindowEvent e;
truelight@193: 
truelight@0: 	pt = GetTileBelowCursor();
truelight@0: 	if (pt.x == -1)
truelight@0: 		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: 
truelight@0: 	if ((w = GetCallbackWnd()) != NULL) {
truelight@0: 		e.event = WE_PLACE_OBJ;
truelight@0: 		e.place.pt = pt;
truelight@0: 		e.place.tile = TILE_FROM_XY(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 */
darkvater@152: 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));
darkvater@152: 	WP(w,vp_d).follow_vehicle = -1;
darkvater@152: 
darkvater@152: 	if (WP(w,vp_d).scrollpos_x == pt.x &&
darkvater@152: 			WP(w,vp_d).scrollpos_y == pt.y)
darkvater@152: 				return false;
darkvater@152: 
darkvater@152: 	WP(w,vp_d).scrollpos_x = pt.x;
darkvater@152: 	WP(w,vp_d).scrollpos_y = pt.y;
darkvater@152: 	return true;
darkvater@152: }
darkvater@152: 
darkvater@152: /* scrolls the viewport in a window to a given tile */
darkvater@152: bool ScrollWindowToTile(TileIndex tile, Window * w)
darkvater@152: {
tron@926: 	return ScrollWindowTo(TileX(tile) * 16 + 8, TileY(tile) * 16 + 8, w);
darkvater@152: }
darkvater@152: 
darkvater@152: 
darkvater@152: 
truelight@0: bool ScrollMainWindowTo(int x, int y)
truelight@0: {
truelight@0: 	Window *w = FindWindowById(WC_MAIN_WINDOW, 0);
truelight@0: 	Point pt;
truelight@0: 
truelight@0: 	pt = MapXYZToViewport(w->viewport, x, y, GetSlopeZ(x, y));
truelight@0: 	WP(w,vp_d).follow_vehicle = -1;
truelight@0: 
truelight@0: 	if (WP(w,vp_d).scrollpos_x == pt.x &&
truelight@0: 			WP(w,vp_d).scrollpos_y == pt.y)
truelight@0: 				return false;
truelight@0: 
truelight@0: 	WP(w,vp_d).scrollpos_x = pt.x;
truelight@0: 	WP(w,vp_d).scrollpos_y = pt.y;
truelight@0: 	return true;
truelight@0: }
truelight@0: 
truelight@0: 
truelight@0: bool ScrollMainWindowToTile(TileIndex tile)
truelight@0: {
tron@926: 	return ScrollMainWindowTo(TileX(tile) * 16 + 8, TileY(tile) * 16 + 8);
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) {
truelight@0: 		if (tile != 0) MarkTileDirtyByTile(tile);
truelight@0: 		if (old  != 0) MarkTileDirtyByTile(old);
truelight@0: 	}
truelight@0: }
truelight@0: 
truelight@0: void SetTileSelectSize(int w, int h)
truelight@0: {
truelight@0: 	TileHighlightData *thd = _thd_ptr;
truelight@0: 	thd->new_size.x = w * 16;
truelight@0: 	thd->new_size.y = h * 16;
truelight@0: 	thd->new_outersize.x = 0;
truelight@0: 	thd->new_outersize.y = 0;
truelight@0: }
truelight@0: 
truelight@0: void SetTileSelectBigSize(int ox, int oy, int sx, int sy) {
truelight@0: 	TileHighlightData *thd = _thd_ptr;
truelight@0: 	thd->offs.x = ox * 16;
truelight@0: 	thd->offs.y = oy * 16;
truelight@0: 	thd->new_outersize.x = sx * 16;
truelight@0: 	thd->new_outersize.y = sy * 16;
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: {
dominik@1070: 	int i;
dominik@1070: 	i = AutorailPiece[x&0xF][y&0xF];
dominik@1070: 	return HT_RAIL | i;
dominik@1070: }
truelight@0: 
dominik@1070: // called regular to update tile highlighting in all cases
tron@1093: void UpdateTileSelection(void)
truelight@0: {
truelight@0: 	TileHighlightData *thd = _thd_ptr;
truelight@0: 	Point pt;
truelight@0: 	int x1,y1;
truelight@0: 
truelight@0: 	thd->new_drawstyle = 0;
truelight@0: 
dominik@1070: 	if (thd->place_mode == VHM_SPECIAL) {
truelight@0: 		x1 = thd->selend.x;
truelight@0: 		y1 = thd->selend.y;
truelight@0: 		if (x1 != -1) {
truelight@0: 			int x2 = thd->selstart.x;
truelight@0: 			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);
truelight@0: 			thd->new_pos.x = x1;
truelight@0: 			thd->new_pos.y = y1;
truelight@0: 			thd->new_size.x = x2 - x1 + 16;
truelight@0: 			thd->new_size.y = y2 - y1 + 16;
truelight@0: 			thd->new_drawstyle = thd->next_drawstyle;
truelight@0: 		}
dominik@1070: 	} else if (thd->place_mode != VHM_NONE) {
truelight@0: 		pt = GetTileBelowCursor();
truelight@0: 		x1 = pt.x;
truelight@0: 		y1 = pt.y;
truelight@0: 		if (x1 != -1) {
dominik@1070: 			switch (thd->place_mode) {
dominik@1070: 				case VHM_RECT:
dominik@1070: 					thd->new_drawstyle = HT_RECT;
dominik@1070: 					break;
dominik@1070: 				case VHM_POINT:
dominik@1070: 					thd->new_drawstyle = HT_POINT;
dominik@1070: 					x1 += 8;
dominik@1070: 					y1 += 8;
dominik@1070: 					break;
dominik@1070: 				case VHM_RAIL:
dominik@1070: 					thd->new_drawstyle = GetAutorailHT(pt.x, pt.y); // draw one highlighted tile
truelight@0: 			}
truelight@0: 			thd->new_pos.x = x1 & ~0xF;
truelight@0: 			thd->new_pos.y = y1 & ~0xF;
truelight@0: 		}
truelight@0: 	}
truelight@0: 
dominik@1070: 	// redraw selection
truelight@193: 	if (thd->drawstyle != thd->new_drawstyle ||
truelight@193: 			thd->pos.x != thd->new_pos.x || thd->pos.y != thd->new_pos.y ||
truelight@0: 			thd->size.x != thd->new_size.x || thd->size.y != thd->new_size.y) {
truelight@193: 
truelight@0: 		// clear the old selection?
truelight@0: 		if (thd->drawstyle) SetSelectionTilesDirty();
truelight@0: 
truelight@0: 		thd->drawstyle = thd->new_drawstyle;
truelight@0: 		thd->pos = thd->new_pos;
truelight@0: 		thd->size = thd->new_size;
truelight@0: 		thd->outersize = thd->new_outersize;
truelight@0: 		thd->dirty = 0xff;
truelight@0: 
truelight@0: 		// draw the new selection?
truelight@0: 		if (thd->new_drawstyle) SetSelectionTilesDirty();
truelight@0: 	}
truelight@0: }
truelight@0: 
dominik@1070: // highlighting tiles while only going over them with the mouse
truelight@0: void VpStartPlaceSizing(uint tile, int user)
truelight@0: {
truelight@0: 	TileHighlightData *thd;
truelight@0: 	thd = _thd_ptr;
truelight@0: 	thd->userdata = user;
tron@926: 	thd->selend.x = TileX(tile) * 16;
tron@926: 	thd->selstart.x = TileX(tile) * 16;
tron@926: 	thd->selend.y = TileY(tile) * 16;
tron@926: 	thd->selstart.y = TileY(tile) * 16;
dominik@1070: 	if (thd->place_mode == VHM_RECT) {
dominik@1070: 		thd->place_mode = VHM_SPECIAL;
truelight@0: 		thd->next_drawstyle = HT_RECT;
dominik@1070: 	} else if (thd->place_mode == VHM_RAIL) { // autorail one piece
dominik@1070: 		thd->place_mode = VHM_SPECIAL;
dominik@1070: 		thd->next_drawstyle = thd->drawstyle;
truelight@0: 	} else {
dominik@1070: 		thd->place_mode = VHM_SPECIAL;
truelight@0: 		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: 
truelight@0: void VpSetPresizeRange(uint from, uint to)
truelight@0: {
truelight@0: 	TileHighlightData *thd = _thd_ptr;
tron@926: 	thd->selend.x = TileX(to) * 16;
tron@926: 	thd->selend.y = TileY(to) * 16;
tron@926: 	thd->selstart.x = TileX(from) * 16;
tron@926: 	thd->selstart.y = TileY(from) * 16;
truelight@0: 	thd->next_drawstyle = HT_RECT;
truelight@0: }
truelight@0: 
tron@1093: 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: 	TileHighlightData *thd = &_thd;
dominik@1070: 	int fxpy = _tile_fract_coords.x + _tile_fract_coords.y;
dominik@1070: 	int sxpy = (thd->selend.x & 0xF) + (thd->selend.y & 0xF);
dominik@1070: 	int fxmy = _tile_fract_coords.x - _tile_fract_coords.y;
dominik@1070: 	int sxmy = (thd->selend.x & 0xF) - (thd->selend.y & 0xF);
dominik@1070: 
dominik@1070: 	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: 		break;
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: 		break;
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: 		break;
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: 		break;
dominik@1070: 	}
dominik@1070: 
dominik@1070: 	return 0; // avoids compiler warnings
dominik@1070: }
dominik@1070: 
dominik@1070: 
dominik@1070: // while dragging
dominik@1070: static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int method)
truelight@0: {
truelight@0: 	int d;
dominik@1070: 	byte b=6;
truelight@0: 	uint w,h;
truelight@193: 
dominik@1070: 	int dx = thd->selstart.x - (thd->selend.x&~0xF);
dominik@1070: 	int dy = thd->selstart.y - (thd->selend.y&~0xF);
dominik@1070: 	w = myabs(dx) + 16;
dominik@1070: 	h = myabs(dy) + 16;
truelight@0: 
dominik@1070: 	if (TILE_FROM_XY(thd->selstart.x, thd->selstart.y) == TILE_FROM_XY(x,y)) { // check if we're only within one tile
dominik@1070: 			if(method == VPM_RAILDIRS)
dominik@1070: 				b = GetAutorailHT(x, y);
dominik@1070: 			else // rect for autosignals on one tile
dominik@1070: 				b = HT_RECT;
dominik@1070: 	} else if (h == 16) { // Is this in X direction?
dominik@1070: 		if (dx==16) // 2x1 special handling
dominik@1070: 			b = (Check2x1AutoRail(3)) | HT_LINE;
dominik@1070: 		else if (dx==-16)
dominik@1070: 			b = (Check2x1AutoRail(2)) | HT_LINE;
tron@1109: 		else
dominik@1070: 			b = HT_LINE | HT_DIR_X;
dominik@1070: 		y = thd->selstart.y;
dominik@1070: 	} else if (w == 16) { // Or Y direction?
dominik@1070: 		if (dy==16) // 2x1 special handling
dominik@1070: 			b = (Check2x1AutoRail(1)) | HT_LINE;
dominik@1070: 		else if (dy==-16) // 2x1 other direction
dominik@1070: 			b = (Check2x1AutoRail(0)) | HT_LINE;
tron@1109: 		else
dominik@1070: 			b = HT_LINE | HT_DIR_Y;
truelight@0: 		x = thd->selstart.x;
dominik@1070: 	} else if (w > h * 2) { // still count as x dir?
dominik@1070: 			b = HT_LINE | HT_DIR_X;
truelight@0: 		y = thd->selstart.y;
dominik@1070: 	} else if (h > w * 2) { // still count as y dir?
dominik@1070: 			b = HT_LINE | HT_DIR_Y;
dominik@1070: 		x = thd->selstart.x;
dominik@1070: 	} else { // complicated direction
truelight@0: 		d = w - h;
dominik@1070: 		thd->selend.x = thd->selend.x&~0xF;
dominik@1070: 		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
dominik@1070: 				if (d ==0) b = (x & 0xF) > (y & 0xF) ? HT_LINE | HT_DIR_VL : HT_LINE | HT_DIR_VR;
dominik@1070: 				else if (d >= 0) { x = thd->selstart.x + h; b = HT_LINE | HT_DIR_VL; } // return px == py || px == py + 16;
dominik@1070: 				else { y = thd->selstart.y + w; b = HT_LINE | HT_DIR_VR; } // return px == py || px == py - 16;
truelight@0: 			} else {
truelight@0: 				// west
dominik@1070: 				if (d ==0) b = (x & 0xF) + (y & 0xF) >= 0x10 ? HT_LINE | HT_DIR_HL : HT_LINE | HT_DIR_HU;
dominik@1070: 				else if (d >= 0) { x = thd->selstart.x + h; b = HT_LINE | HT_DIR_HL; }
dominik@1070: 				else { y = thd->selstart.y - w; b = HT_LINE | HT_DIR_HU; }
truelight@0: 			}
truelight@0: 		} else {
truelight@0: 			if (y > thd->selstart.y) {
truelight@0: 				// east
dominik@1070: 				if (d ==0) b = (x & 0xF) + (y & 0xF) >= 0x10 ? HT_LINE | HT_DIR_HL : HT_LINE | HT_DIR_HU;
dominik@1070: 				else if (d >= 0) { x = thd->selstart.x - h; b = HT_LINE | HT_DIR_HU; } // return px == -py || px == -py - 16;
dominik@1070: 				else { y = thd->selstart.y + w; b = HT_LINE | HT_DIR_HL; } // return px == -py || px == -py + 16;
truelight@0: 			} else {
truelight@0: 				// north
dominik@1070: 				if (d ==0) b = (x & 0xF) > (y & 0xF) ? HT_LINE | HT_DIR_VL : HT_LINE | HT_DIR_VR;
dominik@1070: 				else if (d >= 0) { x = thd->selstart.x - h; b = HT_LINE | HT_DIR_VR; } // return px == py || px == py - 16;
dominik@1070: 				else { y = thd->selstart.y - w; b = HT_LINE | HT_DIR_VL; } //return px == py || px == py + 16;
truelight@0: 			}
truelight@0: 		}
truelight@0: 	}
truelight@0: 	thd->selend.x = x;
truelight@0: 	thd->selend.y = y;
truelight@0: 	thd->next_drawstyle = b;
truelight@0: }
truelight@0: 
dominik@1070: // while dragging
truelight@0: void VpSelectTilesWithMethod(int x, int y, int method)
truelight@0: {
truelight@0: 	TileHighlightData *thd = _thd_ptr;
truelight@0: 	int sx,sy;
truelight@0: 	if (x == -1) {
truelight@0: 		thd->selend.x = -1;
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	// allow drag in any rail direction
darkvater@58: 	if (method == VPM_RAILDIRS || method == VPM_SIGNALDIRS) {
dominik@1070: 		thd->selend.x = x;
dominik@1070: 		thd->selend.y = y;
dominik@1070: 		CalcRaildirsDrawstyle(thd, x, y, method);
truelight@0: 		return;
truelight@0: 	}
truelight@0: 
truelight@0: 	if (_thd.next_drawstyle == HT_POINT) { x += 8; y += 8; }
truelight@0: 
truelight@0: 	sx = thd->selstart.x;
truelight@0: 	sy = thd->selstart.y;
truelight@0: 
truelight@0: 	switch(method) {
truelight@0: 	case VPM_FIX_X:
truelight@0: 		x = sx;
truelight@0: 		break;
truelight@0: 
truelight@0: 	case VPM_FIX_Y:
truelight@0: 		y = sy;
truelight@0: 		break;
truelight@0: 
truelight@0: 	case VPM_X_OR_Y:
truelight@0: 		if (myabs(sy - y) < myabs(sx - x)) y = sy; else x = sx;
truelight@0: 		break;
truelight@0: 
truelight@0: 	case VPM_X_AND_Y:
truelight@0: 		break;
truelight@0: 
truelight@0: 	// limit the selected area to a 10x10 rect.
truelight@0: 	case VPM_X_AND_Y_LIMITED: {
truelight@0: 		int limit = (thd->sizelimit-1) * 16;
truelight@0: 		x = sx + clamp(x - sx, -limit, limit);
truelight@0: 		y = sy + clamp(y - sy, -limit, limit);
truelight@0: 		break;
truelight@0: 	}
truelight@0: 	}
truelight@0: 
truelight@0: 	thd->selend.x = x;
truelight@0: 	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: 
truelight@0: 	if (_special_mouse_mode != WSM_SIZING)
truelight@0: 		return true;
truelight@0: 
truelight@0: 	e.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;
truelight@0: 		e.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@1109: 	if (_thd.next_drawstyle == HT_RECT)
dominik@1070: 		_thd.place_mode = VHM_RECT;
dominik@1070: 	else if ((e.place.userdata & 0xF) == VPM_SIGNALDIRS) // some might call this a hack... -- Dominik
dominik@1070: 		_thd.place_mode = VHM_RECT;
dominik@1070: 	else if (_thd.next_drawstyle & HT_LINE)
dominik@1070: 		_thd.place_mode = VHM_RAIL;
dominik@1070: 	else if (_thd.next_drawstyle & HT_RAIL)
dominik@1070: 		_thd.place_mode = VHM_RAIL;
dominik@1070: 	else
dominik@1070: 		_thd.place_mode = VHM_POINT;
truelight@0: 	SetTileSelectSize(1, 1);
truelight@0: 
truelight@0: 	// and call the mouseup event.
truelight@0: 	e.event = WE_PLACE_MOUSEUP;
truelight@0: 	e.place.pt = _thd.selend;
truelight@0: 	e.place.tile = TILE_FROM_XY(e.place.pt.x, e.place.pt.y);
truelight@0: 	e.place.starttile = TILE_FROM_XY(_thd.selstart.x, _thd.selstart.y);
truelight@0: 	w->wndproc(w, &e);
truelight@193: 
truelight@0: 	return false;
truelight@0: }
truelight@0: 
truelight@0: void SetObjectToPlaceWnd(int icon, byte mode, Window *w)
truelight@0: {
truelight@0: 	SetObjectToPlace(icon,mode,w->window_class, w->window_number);
truelight@0: }
truelight@0: 
truelight@0: #include "table/animcursors.h"
truelight@0: 
tron@873: void SetObjectToPlace(int icon, byte mode, WindowClass window_class, WindowNumber window_num)
truelight@0: {
truelight@0: 	TileHighlightData *thd = _thd_ptr;
truelight@0: 	Window *w;
truelight@0: 
dominik@1070: 	// undo clicking on button
truelight@0: 	if (thd->place_mode != 0) {
truelight@0: 		thd->place_mode = 0;
truelight@0: 		w = FindWindowById(thd->window_class, thd->window_number);
truelight@0: 		if (w != NULL)
truelight@0: 			CallWindowEventNP(w, WE_ABORT_PLACE_OBJ);
truelight@0: 	}
truelight@193: 
truelight@0: 	SetTileSelectSize(1, 1);
truelight@193: 
truelight@0: 	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: 
truelight@0: 	thd->place_mode = mode;
truelight@0: 	thd->window_class = window_class;
truelight@0: 	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)
truelight@0: 		SetAnimatedMouseCursor(_animcursors[~icon]);
truelight@0: 	else
truelight@0: 		SetMouseCursor(icon);
truelight@0: }
truelight@0: 
tron@1093: void ResetObjectToPlace(void)
tron@1093: {
truelight@0: 	SetObjectToPlace(0,0,0,0);
truelight@0: }