(svn r7655) [cbh] - Fix: [YAPF] another assert (on opposite cbh when it contained choice). Now it is possible to reach choice when exiting wormhole. So the wormhole cost must be taken into consideration when starting new YAPF node.
/* $Id$ */
#include "stdafx.h"
#include "openttd.h"
#include "debug.h"
#include "functions.h"
#include "gui.h"
#include "spritecache.h"
#include "strings.h"
#include "table/sprites.h"
#include "table/strings.h"
#include "map.h"
#include "viewport.h"
#include "window.h"
#include "vehicle.h"
#include "station.h"
#include "gfx.h"
#include "town.h"
#include "signs.h"
#include "waypoint.h"
#include "variables.h"
#include "train.h"
#define VIEWPORT_DRAW_MEM (65536 * 2)
/* viewport.c */
// XXX - maximum viewports is maximum windows - 2 (main toolbar + status bar)
static ViewPort _viewports[25 - 2];
static uint32 _active_viewports; ///< bitmasked variable where each bit signifies if a viewport is in use or not
assert_compile(lengthof(_viewports) < sizeof(_active_viewports) * 8);
static bool _added_tile_sprite;
static bool _offset_ground_sprites;
/* The in-game coordiante system looks like this *
* *
* ^ Z *
* | *
* | *
* | *
* | *
* / \ *
* / \ *
* / \ *
* / \ *
* X < > Y *
*/
typedef struct StringSpriteToDraw {
uint16 string;
uint16 color;
struct StringSpriteToDraw *next;
int32 x;
int32 y;
uint32 params[2];
uint16 width;
} StringSpriteToDraw;
typedef struct TileSpriteToDraw {
uint32 image;
struct TileSpriteToDraw *next;
int32 x;
int32 y;
byte z;
} TileSpriteToDraw;
typedef struct ChildScreenSpriteToDraw {
uint32 image;
int32 x;
int32 y;
struct ChildScreenSpriteToDraw *next;
} ChildScreenSpriteToDraw;
typedef struct ParentSpriteToDraw {
uint32 image;
int32 left;
int32 top;
int32 right;
int32 bottom;
int32 xmin;
int32 ymin;
int32 xmax;
int32 ymax;
ChildScreenSpriteToDraw *child;
byte unk16;
byte zmin;
byte zmax;
} ParentSpriteToDraw;
// Quick hack to know how much memory to reserve when allocating from the spritelist
// to prevent a buffer overflow.
#define LARGEST_SPRITELIST_STRUCT ParentSpriteToDraw
typedef struct ViewportDrawer {
DrawPixelInfo dpi;
byte *spritelist_mem;
const byte *eof_spritelist_mem;
StringSpriteToDraw **last_string, *first_string;
TileSpriteToDraw **last_tile, *first_tile;
ChildScreenSpriteToDraw **last_child;
ParentSpriteToDraw **parent_list;
ParentSpriteToDraw * const *eof_parent_list;
byte combine_sprites;
int offs_x, offs_y; // used when drawing ground sprites relative
} ViewportDrawer;
static ViewportDrawer *_cur_vd;
TileHighlightData _thd;
static TileInfo *_cur_ti;
extern void SmallMapCenterOnCurrentPos(Window *w);
static Point MapXYZToViewport(const ViewPort *vp, uint x, uint y, uint z)
{
Point p = RemapCoords(x, y, z);
p.x -= vp->virtual_width / 2;
p.y -= vp->virtual_height / 2;
return p;
}
void InitViewports(void) {
memset(_viewports, 0, sizeof(_viewports));
_active_viewports = 0;
}
void DeleteWindowViewport(Window *w)
{
CLRBIT(_active_viewports, w->viewport - _viewports);
w->viewport->width = 0;
w->viewport = NULL;
}
void AssignWindowViewport(Window *w, int x, int y,
int width, int height, uint32 follow_flags, byte zoom)
{
ViewPort *vp;
Point pt;
uint32 bit;
for (vp = _viewports, bit = 0; ; vp++, bit++) {
assert(vp != endof(_viewports));
if (vp->width == 0) break;
}
SETBIT(_active_viewports, bit);
vp->left = x + w->left;
vp->top = y + w->top;
vp->width = width;
vp->height = height;
vp->zoom = zoom;
vp->virtual_width = width << zoom;
vp->virtual_height = height << zoom;
if (follow_flags & 0x80000000) {
const Vehicle *veh;
WP(w, vp_d).follow_vehicle = (VehicleID)(follow_flags & 0xFFFF);
veh = GetVehicle(WP(w, vp_d).follow_vehicle);
pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
} else {
uint x = TileX(follow_flags) * TILE_SIZE;
uint y = TileY(follow_flags) * TILE_SIZE;
WP(w, vp_d).follow_vehicle = INVALID_VEHICLE;
pt = MapXYZToViewport(vp, x, y, GetSlopeZ(x, y));
}
WP(w, vp_d).scrollpos_x = pt.x;
WP(w, vp_d).scrollpos_y = pt.y;
w->viewport = vp;
vp->virtual_left = 0;//pt.x;
vp->virtual_top = 0;//pt.y;
}
static Point _vp_move_offs;
static void DoSetViewportPosition(Window* const *wz, int left, int top, int width, int height)
{
for (; wz != _last_z_window; wz++) {
const Window *w = *wz;
if (left + width > w->left &&
w->left + w->width > left &&
top + height > w->top &&
w->top + w->height > top) {
if (left < w->left) {
DoSetViewportPosition(wz, left, top, w->left - left, height);
DoSetViewportPosition(wz, left + (w->left - left), top, width - (w->left - left), height);
return;
}
if (left + width > w->left + w->width) {
DoSetViewportPosition(wz, left, top, (w->left + w->width - left), height);
DoSetViewportPosition(wz, left + (w->left + w->width - left), top, width - (w->left + w->width - left) , height);
return;
}
if (top < w->top) {
DoSetViewportPosition(wz, left, top, width, (w->top - top));
DoSetViewportPosition(wz, left, top + (w->top - top), width, height - (w->top - top));
return;
}
if (top + height > w->top + w->height) {
DoSetViewportPosition(wz, left, top, width, (w->top + w->height - top));
DoSetViewportPosition(wz, left, top + (w->top + w->height - top), width , height - (w->top + w->height - top));
return;
}
return;
}
}
{
int xo = _vp_move_offs.x;
int yo = _vp_move_offs.y;
if (abs(xo) >= width || abs(yo) >= height) {
/* fully_outside */
RedrawScreenRect(left, top, left + width, top + height);
return;
}
GfxScroll(left, top, width, height, xo, yo);
if (xo > 0) {
RedrawScreenRect(left, top, xo + left, top + height);
left += xo;
width -= xo;
} else if (xo < 0) {
RedrawScreenRect(left+width+xo, top, left+width, top + height);
width += xo;
}
if (yo > 0) {
RedrawScreenRect(left, top, width+left, top + yo);
} else if (yo < 0) {
RedrawScreenRect(left, top + height + yo, width+left, top + height);
}
}
}
static void SetViewportPosition(Window *w, int x, int y)
{
ViewPort *vp = w->viewport;
int old_left = vp->virtual_left;
int old_top = vp->virtual_top;
int i;
int left, top, width, height;
vp->virtual_left = x;
vp->virtual_top = y;
old_left >>= vp->zoom;
old_top >>= vp->zoom;
x >>= vp->zoom;
y >>= vp->zoom;
old_left -= x;
old_top -= y;
if (old_top == 0 && old_left == 0) return;
_vp_move_offs.x = old_left;
_vp_move_offs.y = old_top;
left = vp->left;
top = vp->top;
width = vp->width;
height = vp->height;
if (left < 0) {
width += left;
left = 0;
}
i = left + width - _screen.width;
if (i >= 0) width -= i;
if (width > 0) {
if (top < 0) {
height += top;
top = 0;
}
i = top + height - _screen.height;
if (i >= 0) height -= i;
if (height > 0) DoSetViewportPosition(FindWindowZPosition(w) + 1, left, top, width, height);
}
}
ViewPort *IsPtInWindowViewport(const Window *w, int x, int y)
{
ViewPort *vp = w->viewport;
if (vp != NULL &&
IS_INT_INSIDE(x, vp->left, vp->left + vp->width) &&
IS_INT_INSIDE(y, vp->top, vp->top + vp->height))
return vp;
return NULL;
}
static Point TranslateXYToTileCoord(const ViewPort *vp, int x, int y)
{
Point pt;
int a,b;
uint z;
if ( (uint)(x -= vp->left) >= (uint)vp->width ||
(uint)(y -= vp->top) >= (uint)vp->height) {
Point pt = {-1, -1};
return pt;
}
x = ((x << vp->zoom) + vp->virtual_left) >> 2;
y = ((y << vp->zoom) + vp->virtual_top) >> 1;
#if !defined(NEW_ROTATION)
a = y-x;
b = y+x;
#else
a = x+y;
b = x-y;
#endif
/* we need to move variables in to the valid range, as the
* GetTileZoomCenterWindow() function can call here with invalid x and/or y,
* when the user tries to zoom out along the sides of the map */
a = clamp(a, 0, (int)(MapMaxX() * TILE_SIZE) - 1);
b = clamp(b, 0, (int)(MapMaxY() * TILE_SIZE) - 1);
z = GetSlopeZ(a, b ) / 2;
z = GetSlopeZ(a + z, b + z) / 2;
z = GetSlopeZ(a + z, b + z) / 2;
z = GetSlopeZ(a + z, b + z) / 2;
z = GetSlopeZ(a + z, b + z) / 2;
pt.x = a + z;
pt.y = b + z;
return pt;
}
/* When used for zooming, check area below current coordinates (x,y)
* and return the tile of the zoomed out/in position (zoom_x, zoom_y)
* when you just want the tile, make x = zoom_x and y = zoom_y */
static Point GetTileFromScreenXY(int x, int y, int zoom_x, int zoom_y)
{
Window *w;
ViewPort *vp;
Point pt;
if ( (w = FindWindowFromPt(x, y)) != NULL &&
(vp = IsPtInWindowViewport(w, x, y)) != NULL)
return TranslateXYToTileCoord(vp, zoom_x, zoom_y);
pt.y = pt.x = -1;
return pt;
}
Point GetTileBelowCursor(void)
{
return GetTileFromScreenXY(_cursor.pos.x, _cursor.pos.y, _cursor.pos.x, _cursor.pos.y);
}
Point GetTileZoomCenterWindow(bool in, Window * w)
{
int x, y;
ViewPort * vp;
vp = w->viewport;
if (in) {
x = ((_cursor.pos.x - vp->left) >> 1) + (vp->width >> 2);
y = ((_cursor.pos.y - vp->top) >> 1) + (vp->height >> 2);
} else {
x = vp->width - (_cursor.pos.x - vp->left);
y = vp->height - (_cursor.pos.y - vp->top);
}
/* Get the tile below the cursor and center on the zoomed-out center */
return GetTileFromScreenXY(_cursor.pos.x, _cursor.pos.y, x + vp->left, y + vp->top);
}
/** Update the status of the zoom-buttons according to the zoom-level
* of the viewport. This will update their status and invalidate accordingly
* @param window pointer to the window that has the zoom buttons
* @param vp pointer to the viewport whose zoom-level the buttons represent
* @param widget_zoom_in widget index for window with zoom-in button
* @param widget_zoom_out widget index for window with zoom-out button */
void HandleZoomMessage(Window *w, const ViewPort *vp, byte widget_zoom_in, byte widget_zoom_out)
{
SetWindowWidgetDisabledState(w, widget_zoom_in, vp->zoom == 0);
InvalidateWidget(w, widget_zoom_in);
SetWindowWidgetDisabledState(w, widget_zoom_out, vp->zoom == 2);
InvalidateWidget(w, widget_zoom_out);
}
void DrawGroundSpriteAt(uint32 image, int32 x, int32 y, byte z)
{
ViewportDrawer *vd = _cur_vd;
TileSpriteToDraw *ts;
assert((image & SPRITE_MASK) < MAX_SPRITES);
if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
DEBUG(sprite, 0, "Out of sprite memory");
return;
}
ts = (TileSpriteToDraw*)vd->spritelist_mem;
vd->spritelist_mem += sizeof(TileSpriteToDraw);
ts->image = image;
ts->next = NULL;
ts->x = x;
ts->y = y;
ts->z = z;
*vd->last_tile = ts;
vd->last_tile = &ts->next;
}
void DrawGroundSprite(uint32 image)
{
if (_offset_ground_sprites) {
// offset ground sprite because of foundation?
AddChildSpriteScreen(image, _cur_vd->offs_x, _cur_vd->offs_y);
} else {
_added_tile_sprite = true;
DrawGroundSpriteAt(image, _cur_ti->x, _cur_ti->y, _cur_ti->z);
}
}
void OffsetGroundSprite(int x, int y)
{
_cur_vd->offs_x = x;
_cur_vd->offs_y = y;
_offset_ground_sprites = true;
}
static void AddCombinedSprite(uint32 image, int x, int y, byte z)
{
const ViewportDrawer *vd = _cur_vd;
Point pt = RemapCoords(x, y, z);
const Sprite* spr = GetSprite(image & SPRITE_MASK);
if (pt.x + spr->x_offs >= vd->dpi.left + vd->dpi.width ||
pt.x + spr->x_offs + spr->width <= vd->dpi.left ||
pt.y + spr->y_offs >= vd->dpi.top + vd->dpi.height ||
pt.y + spr->y_offs + spr->height <= vd->dpi.top)
return;
AddChildSpriteScreen(image, pt.x - vd->parent_list[-1]->left, pt.y - vd->parent_list[-1]->top);
}
void AddSortableSpriteToDraw(uint32 image, int x, int y, int w, int h, byte dz, byte z)
{
ViewportDrawer *vd = _cur_vd;
ParentSpriteToDraw *ps;
const Sprite *spr;
Point pt;
assert((image & SPRITE_MASK) < MAX_SPRITES);
if (vd->combine_sprites == 2) {
AddCombinedSprite(image, x, y, z);
return;
}
vd->last_child = NULL;
if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
DEBUG(sprite, 0, "Out of sprite memory");
return;
}
ps = (ParentSpriteToDraw*)vd->spritelist_mem;
if (vd->parent_list >= vd->eof_parent_list) {
// This can happen rarely, mostly when you zoom out completely
// and have a lot of stuff that moves (and is added to the
// sort-list, this function). To solve it, increase
// parent_list somewhere below to a higher number.
// This can not really hurt you, it just gives some black
// spots on the screen ;)
DEBUG(sprite, 0, "Out of sprite memory (parent_list)");
return;
}
pt = RemapCoords(x, y, z);
spr = GetSprite(image & SPRITE_MASK);
if ((ps->left = (pt.x += spr->x_offs)) >= vd->dpi.left + vd->dpi.width ||
(ps->right = (pt.x + spr->width )) <= vd->dpi.left ||
(ps->top = (pt.y += spr->y_offs)) >= vd->dpi.top + vd->dpi.height ||
(ps->bottom = (pt.y + spr->height)) <= vd->dpi.top) {
return;
}
vd->spritelist_mem += sizeof(ParentSpriteToDraw);
ps->image = image;
ps->xmin = x;
ps->xmax = x + w - 1;
ps->ymin = y;
ps->ymax = y + h - 1;
ps->zmin = z;
ps->zmax = z + dz - 1;
ps->unk16 = 0;
ps->child = NULL;
vd->last_child = &ps->child;
*vd->parent_list++ = ps;
if (vd->combine_sprites == 1) vd->combine_sprites = 2;
}
void StartSpriteCombine(void)
{
_cur_vd->combine_sprites = 1;
}
void EndSpriteCombine(void)
{
_cur_vd->combine_sprites = 0;
}
void AddChildSpriteScreen(uint32 image, int x, int y)
{
ViewportDrawer *vd = _cur_vd;
ChildScreenSpriteToDraw *cs;
assert((image & SPRITE_MASK) < MAX_SPRITES);
if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
DEBUG(sprite, 0, "Out of sprite memory");
return;
}
cs = (ChildScreenSpriteToDraw*)vd->spritelist_mem;
if (vd->last_child == NULL) return;
vd->spritelist_mem += sizeof(ChildScreenSpriteToDraw);
*vd->last_child = cs;
vd->last_child = &cs->next;
cs->image = image;
cs->x = x;
cs->y = y;
cs->next = NULL;
}
/* Returns a StringSpriteToDraw */
void *AddStringToDraw(int x, int y, StringID string, uint32 params_1, uint32 params_2)
{
ViewportDrawer *vd = _cur_vd;
StringSpriteToDraw *ss;
if (vd->spritelist_mem >= vd->eof_spritelist_mem) {
DEBUG(sprite, 0, "Out of sprite memory");
return NULL;
}
ss = (StringSpriteToDraw*)vd->spritelist_mem;
vd->spritelist_mem += sizeof(StringSpriteToDraw);
ss->string = string;
ss->next = NULL;
ss->x = x;
ss->y = y;
ss->params[0] = params_1;
ss->params[1] = params_2;
ss->width = 0;
*vd->last_string = ss;
vd->last_string = &ss->next;
return ss;
}
static void DrawSelectionSprite(uint32 image, const TileInfo *ti)
{
if (_added_tile_sprite && !(_thd.drawstyle & HT_LINE)) { // draw on real ground
DrawGroundSpriteAt(image, ti->x, ti->y, ti->z + 7);
} else { // draw on top of foundation
AddSortableSpriteToDraw(image, ti->x, ti->y, 0x10, 0x10, 1, ti->z + 7);
}
}
static bool IsPartOfAutoLine(int px, int py)
{
px -= _thd.selstart.x;
py -= _thd.selstart.y;
switch (_thd.drawstyle) {
case HT_LINE | HT_DIR_X: return py == 0; // x direction
case HT_LINE | HT_DIR_Y: return px == 0; // y direction
case HT_LINE | HT_DIR_HU: return px == -py || px == -py - 16; // horizontal upper
case HT_LINE | HT_DIR_HL: return px == -py || px == -py + 16; // horizontal lower
case HT_LINE | HT_DIR_VL: return px == py || px == py + 16; // vertival left
case HT_LINE | HT_DIR_VR: return px == py || px == py - 16; // vertical right
default:
NOT_REACHED();
}
/* useless, but avoids compiler warning this way */
return 0;
}
// [direction][side]
static const int _AutorailType[6][2] = {
{ HT_DIR_X, HT_DIR_X },
{ HT_DIR_Y, HT_DIR_Y },
{ HT_DIR_HU, HT_DIR_HL },
{ HT_DIR_HL, HT_DIR_HU },
{ HT_DIR_VL, HT_DIR_VR },
{ HT_DIR_VR, HT_DIR_VL }
};
#include "table/autorail.h"
static void DrawTileSelection(const TileInfo *ti)
{
uint32 image;
// Draw a red error square?
if (_thd.redsq != 0 && _thd.redsq == ti->tile) {
DrawSelectionSprite(PALETTE_TILE_RED_PULSATING | (SPR_SELECT_TILE + _tileh_to_sprite[ti->tileh]), ti);
return;
}
// no selection active?
if (_thd.drawstyle == 0) return;
// Inside the inner area?
if (IS_INSIDE_1D(ti->x, _thd.pos.x, _thd.size.x) &&
IS_INSIDE_1D(ti->y, _thd.pos.y, _thd.size.y)) {
if (_thd.drawstyle & HT_RECT) {
image = SPR_SELECT_TILE + _tileh_to_sprite[ti->tileh];
if (_thd.make_square_red) image |= PALETTE_SEL_TILE_RED;
DrawSelectionSprite(image, ti);
} else if (_thd.drawstyle & HT_POINT) {
// Figure out the Z coordinate for the single dot.
byte z = ti->z;
if (ti->tileh & SLOPE_N) {
z += TILE_HEIGHT;
if (ti->tileh == SLOPE_STEEP_N) z += TILE_HEIGHT;
}
DrawGroundSpriteAt(_cur_dpi->zoom != 2 ? SPR_DOT : SPR_DOT_SMALL, ti->x, ti->y, z);
} else if (_thd.drawstyle & HT_RAIL /*&& _thd.place_mode == VHM_RAIL*/) {
// autorail highlight piece under cursor
uint type = _thd.drawstyle & 0xF;
assert(type <= 5);
image = SPR_AUTORAIL_BASE + _AutorailTilehSprite[ti->tileh][_AutorailType[type][0]];
if (_thd.make_square_red) image |= PALETTE_SEL_TILE_RED;
DrawSelectionSprite(image, ti);
} else if (IsPartOfAutoLine(ti->x, ti->y)) {
// autorail highlighting long line
int dir = _thd.drawstyle & ~0xF0;
uint side;
if (dir < 2) {
side = 0;
} else {
TileIndex start = TileVirtXY(_thd.selstart.x, _thd.selstart.y);
int diffx = myabs(TileX(start) - TileX(ti->tile));
int diffy = myabs(TileY(start) - TileY(ti->tile));
side = myabs(diffx - diffy);
}
image = SPR_AUTORAIL_BASE + _AutorailTilehSprite[ti->tileh][_AutorailType[dir][side]];
if (_thd.make_square_red) image |= PALETTE_SEL_TILE_RED;
DrawSelectionSprite(image, ti);
}
return;
}
// Check if it's inside the outer area?
if (_thd.outersize.x &&
_thd.size.x < _thd.size.x + _thd.outersize.x &&
IS_INSIDE_1D(ti->x, _thd.pos.x + _thd.offs.x, _thd.size.x + _thd.outersize.x) &&
IS_INSIDE_1D(ti->y, _thd.pos.y + _thd.offs.y, _thd.size.y + _thd.outersize.y)) {
// Draw a blue rect.
DrawSelectionSprite(PALETTE_SEL_TILE_BLUE | (SPR_SELECT_TILE + _tileh_to_sprite[ti->tileh]), ti);
return;
}
}
static void ViewportAddLandscape(void)
{
ViewportDrawer *vd = _cur_vd;
int x, y, width, height;
TileInfo ti;
bool direction;
_cur_ti = &ti;
// Transform into tile coordinates and round to closest full tile
#if !defined(NEW_ROTATION)
x = ((vd->dpi.top >> 1) - (vd->dpi.left >> 2)) & ~0xF;
y = ((vd->dpi.top >> 1) + (vd->dpi.left >> 2) - 0x10) & ~0xF;
#else
x = ((vd->dpi.top >> 1) + (vd->dpi.left >> 2) - 0x10) & ~0xF;
y = ((vd->dpi.left >> 2) - (vd->dpi.top >> 1)) & ~0xF;
#endif
// determine size of area
{
Point pt = RemapCoords(x, y, 241);
width = (vd->dpi.left + vd->dpi.width - pt.x + 95) >> 6;
height = (vd->dpi.top + vd->dpi.height - pt.y) >> 5 << 1;
}
assert(width > 0);
assert(height > 0);
direction = false;
do {
int width_cur = width;
int x_cur = x;
int y_cur = y;
do {
TileType tt;
ti.x = x_cur;
ti.y = y_cur;
if (0 <= x_cur && x_cur < (int)MapMaxX() * TILE_SIZE &&
0 <= y_cur && y_cur < (int)MapMaxY() * TILE_SIZE) {
TileIndex tile = TileVirtXY(x_cur, y_cur);
ti.tile = tile;
ti.tileh = GetTileSlope(tile, &ti.z);
tt = GetTileType(tile);
} else {
ti.tileh = SLOPE_FLAT;
ti.tile = 0;
ti.z = 0;
tt = MP_VOID;
}
#if !defined(NEW_ROTATION)
y_cur += 0x10;
x_cur -= 0x10;
#else
y_cur += 0x10;
x_cur += 0x10;
#endif
_added_tile_sprite = false;
_offset_ground_sprites = false;
_tile_type_procs[tt]->draw_tile_proc(&ti);
DrawTileSelection(&ti);
} while (--width_cur);
#if !defined(NEW_ROTATION)
if ( (direction^=1) != 0)
y += 0x10;
else
x += 0x10;
#else
if ( (direction^=1) != 0)
x += 0x10;
else
y -= 0x10;
#endif
} while (--height);
}
static void ViewportAddTownNames(DrawPixelInfo *dpi)
{
Town *t;
int left, top, right, bottom;
if (!(_display_opt & DO_SHOW_TOWN_NAMES) || _game_mode == GM_MENU)
return;
left = dpi->left;
top = dpi->top;
right = left + dpi->width;
bottom = top + dpi->height;
switch (dpi->zoom) {
case 0:
FOR_ALL_TOWNS(t) {
if (bottom > t->sign.top &&
top < t->sign.top + 12 &&
right > t->sign.left &&
left < t->sign.left + t->sign.width_1) {
AddStringToDraw(t->sign.left + 1, t->sign.top + 1,
_patches.population_in_label ? STR_TOWN_LABEL_POP : STR_TOWN_LABEL,
t->index, t->population);
}
}
break;
case 1:
right += 2;
bottom += 2;
FOR_ALL_TOWNS(t) {
if (bottom > t->sign.top &&
top < t->sign.top + 24 &&
right > t->sign.left &&
left < t->sign.left + t->sign.width_1*2) {
AddStringToDraw(t->sign.left + 1, t->sign.top + 1,
_patches.population_in_label ? STR_TOWN_LABEL_POP : STR_TOWN_LABEL,
t->index, t->population);
}
}
break;
default: NOT_REACHED();
case 2:
right += 4;
bottom += 5;
FOR_ALL_TOWNS(t) {
if (bottom > t->sign.top &&
top < t->sign.top + 24 &&
right > t->sign.left &&
left < t->sign.left + t->sign.width_2*4) {
AddStringToDraw(t->sign.left + 5, t->sign.top + 1, STR_TOWN_LABEL_TINY_BLACK, t->index, 0);
AddStringToDraw(t->sign.left + 1, t->sign.top - 3, STR_TOWN_LABEL_TINY_WHITE, t->index, 0);
}
}
break;
}
}
static void AddStation(const Station *st, StringID str, uint16 width)
{
StringSpriteToDraw *sstd;
sstd = AddStringToDraw(st->sign.left + 1, st->sign.top + 1, str, st->index, st->facilities);
if (sstd != NULL) {
sstd->color = (st->owner == OWNER_NONE || st->facilities == 0) ? 0xE : _player_colors[st->owner];
sstd->width = width;
}
}
static void ViewportAddStationNames(DrawPixelInfo *dpi)
{
int left, top, right, bottom;
const Station *st;
if (!(_display_opt & DO_SHOW_STATION_NAMES) || _game_mode == GM_MENU)
return;
left = dpi->left;
top = dpi->top;
right = left + dpi->width;
bottom = top + dpi->height;
switch (dpi->zoom) {
case 0:
FOR_ALL_STATIONS(st) {
if (bottom > st->sign.top &&
top < st->sign.top + 12 &&
right > st->sign.left &&
left < st->sign.left + st->sign.width_1) {
AddStation(st, STR_305C_0, st->sign.width_1);
}
}
break;
case 1:
right += 2;
bottom += 2;
FOR_ALL_STATIONS(st) {
if (bottom > st->sign.top &&
top < st->sign.top + 24 &&
right > st->sign.left &&
left < st->sign.left + st->sign.width_1*2) {
AddStation(st, STR_305C_0, st->sign.width_1);
}
}
break;
default: NOT_REACHED();
case 2:
right += 4;
bottom += 5;
FOR_ALL_STATIONS(st) {
if (bottom > st->sign.top &&
top < st->sign.top + 24 &&
right > st->sign.left &&
left < st->sign.left + st->sign.width_2*4) {
AddStation(st, STR_STATION_SIGN_TINY, st->sign.width_2 | 0x8000);
}
}
break;
}
}
static void AddSign(const Sign *si, StringID str, uint16 width)
{
StringSpriteToDraw *sstd;
sstd = AddStringToDraw(si->sign.left + 1, si->sign.top + 1, str, si->str, 0);
if (sstd != NULL) {
sstd->color = (si->owner == OWNER_NONE) ? 14 : _player_colors[si->owner];
sstd->width = width;
}
}
static void ViewportAddSigns(DrawPixelInfo *dpi)
{
const Sign *si;
int left, top, right, bottom;
if (!(_display_opt & DO_SHOW_SIGNS))
return;
left = dpi->left;
top = dpi->top;
right = left + dpi->width;
bottom = top + dpi->height;
switch (dpi->zoom) {
case 0:
FOR_ALL_SIGNS(si) {
if (bottom > si->sign.top &&
top < si->sign.top + 12 &&
right > si->sign.left &&
left < si->sign.left + si->sign.width_1) {
AddSign(si, STR_2806, si->sign.width_1);
}
}
break;
case 1:
right += 2;
bottom += 2;
FOR_ALL_SIGNS(si) {
if (bottom > si->sign.top &&
top < si->sign.top + 24 &&
right > si->sign.left &&
left < si->sign.left + si->sign.width_1 * 2) {
AddSign(si, STR_2806, si->sign.width_1);
}
}
break;
default: NOT_REACHED();
case 2:
right += 4;
bottom += 5;
FOR_ALL_SIGNS(si) {
if (bottom > si->sign.top &&
top < si->sign.top + 24 &&
right > si->sign.left &&
left < si->sign.left + si->sign.width_2 * 4) {
AddSign(si, STR_2002, si->sign.width_2 | 0x8000);
}
}
break;
}
}
static void AddWaypoint(const Waypoint *wp, StringID str, uint16 width)
{
StringSpriteToDraw *sstd;
sstd = AddStringToDraw(wp->sign.left + 1, wp->sign.top + 1, str, wp->index, 0);
if (sstd != NULL) {
sstd->color = (wp->deleted ? 0xE : 11);
sstd->width = width;
}
}
static void ViewportAddWaypoints(DrawPixelInfo *dpi)
{
const Waypoint *wp;
int left, top, right, bottom;
if (!(_display_opt & DO_WAYPOINTS))
return;
left = dpi->left;
top = dpi->top;
right = left + dpi->width;
bottom = top + dpi->height;
switch (dpi->zoom) {
case 0:
FOR_ALL_WAYPOINTS(wp) {
if (bottom > wp->sign.top &&
top < wp->sign.top + 12 &&
right > wp->sign.left &&
left < wp->sign.left + wp->sign.width_1) {
AddWaypoint(wp, STR_WAYPOINT_VIEWPORT, wp->sign.width_1);
}
}
break;
case 1:
right += 2;
bottom += 2;
FOR_ALL_WAYPOINTS(wp) {
if (bottom > wp->sign.top &&
top < wp->sign.top + 24 &&
right > wp->sign.left &&
left < wp->sign.left + wp->sign.width_1*2) {
AddWaypoint(wp, STR_WAYPOINT_VIEWPORT, wp->sign.width_1);
}
}
break;
default: NOT_REACHED();
case 2:
right += 4;
bottom += 5;
FOR_ALL_WAYPOINTS(wp) {
if (bottom > wp->sign.top &&
top < wp->sign.top + 24 &&
right > wp->sign.left &&
left < wp->sign.left + wp->sign.width_2*4) {
AddWaypoint(wp, STR_WAYPOINT_VIEWPORT_TINY, wp->sign.width_2 | 0x8000);
}
}
break;
}
}
void UpdateViewportSignPos(ViewportSign *sign, int left, int top, StringID str)
{
char buffer[128];
uint w;
sign->top = top;
GetString(buffer, str, lastof(buffer));
w = GetStringBoundingBox(buffer).width + 3;
sign->width_1 = w;
sign->left = left - w / 2;
/* zoomed out version */
_cur_fontsize = FS_SMALL;
w = GetStringBoundingBox(buffer).width + 3;
_cur_fontsize = FS_NORMAL;
sign->width_2 = w;
}
static void ViewportDrawTileSprites(TileSpriteToDraw *ts)
{
do {
Point pt = RemapCoords(ts->x, ts->y, ts->z);
DrawSprite(ts->image, pt.x, pt.y);
ts = ts->next;
} while (ts != NULL);
}
static void ViewportSortParentSprites(ParentSpriteToDraw *psd[])
{
while (*psd != NULL) {
ParentSpriteToDraw* ps = *psd;
if (!(ps->unk16 & 1)) {
ParentSpriteToDraw** psd2 = psd;
ps->unk16 |= 1;
while (*++psd2 != NULL) {
ParentSpriteToDraw* ps2 = *psd2;
ParentSpriteToDraw** psd3;
if (ps2->unk16 & 1) continue;
/* Decide which comparator to use, based on whether the bounding
* boxes overlap
*/
if (ps->xmax > ps2->xmin && ps->xmin < ps2->xmax && // overlap in X?
ps->ymax > ps2->ymin && ps->ymin < ps2->ymax && // overlap in Y?
ps->zmax > ps2->zmin && ps->zmin < ps2->zmax) { // overlap in Z?
/* Use X+Y+Z as the sorting order, so sprites closer to the bottom of
* the screen and with higher Z elevation, are drawn in front.
* Here X,Y,Z are the coordinates of the "center of mass" of the sprite,
* i.e. X=(left+right)/2, etc.
* However, since we only care about order, don't actually divide / 2
*/
if (ps->xmin + ps->xmax + ps->ymin + ps->ymax + ps->zmin + ps->zmax <=
ps2->xmin + ps2->xmax + ps2->ymin + ps2->ymax + ps2->zmin + ps2->zmax) {
continue;
}
} else {
if (ps->xmax < ps2->xmin ||
ps->ymax < ps2->ymin ||
ps->zmax < ps2->zmin || (
ps->xmin < ps2->xmax &&
ps->ymin < ps2->ymax &&
ps->zmin < ps2->zmax
)) {
continue;
}
}
// Swap the two sprites ps and ps2 using bubble-sort algorithm.
psd3 = psd;
do {
ParentSpriteToDraw* temp = *psd3;
*psd3 = ps2;
ps2 = temp;
psd3++;
} while (psd3 <= psd2);
}
} else {
psd++;
}
}
}
static void ViewportDrawParentSprites(ParentSpriteToDraw *psd[])
{
for (; *psd != NULL; psd++) {
const ParentSpriteToDraw* ps = *psd;
Point pt = RemapCoords(ps->xmin, ps->ymin, ps->zmin);
const ChildScreenSpriteToDraw* cs;
DrawSprite(ps->image, pt.x, pt.y);
for (cs = ps->child; cs != NULL; cs = cs->next) {
DrawSprite(cs->image, ps->left + cs->x, ps->top + cs->y);
}
}
}
static void ViewportDrawStrings(DrawPixelInfo *dpi, const StringSpriteToDraw *ss)
{
DrawPixelInfo dp;
byte zoom;
_cur_dpi = &dp;
dp = *dpi;
zoom = dp.zoom;
dp.zoom = 0;
dp.left >>= zoom;
dp.top >>= zoom;
dp.width >>= zoom;
dp.height >>= zoom;
do {
uint16 colour;
if (ss->width != 0) {
int x = (ss->x >> zoom) - 1;
int y = (ss->y >> zoom) - 1;
int bottom = y + 11;
int w = ss->width;
if (w & 0x8000) {
w &= ~0x8000;
y--;
bottom -= 6;
w -= 3;
}
/* Draw the rectangle if 'tranparent station signs' is off,
* or if we are drawing a general text sign (STR_2806) */
if (!(_display_opt & DO_TRANS_SIGNS) || ss->string == STR_2806)
DrawFrameRect(
x, y, x + w, bottom, ss->color,
(_display_opt & DO_TRANS_BUILDINGS) ? FR_TRANSPARENT : 0
);
}
SetDParam(0, ss->params[0]);
SetDParam(1, ss->params[1]);
/* if we didn't draw a rectangle, or if transparant building is on,
* draw the text in the color the rectangle would have */
if ((
(_display_opt & DO_TRANS_BUILDINGS) ||
(_display_opt & DO_TRANS_SIGNS && ss->string != STR_2806)
) && ss->width != 0) {
/* Real colors need the IS_PALETTE_COLOR flag
* otherwise colors from _string_colormap are assumed. */
colour = _colour_gradient[ss->color][6] | IS_PALETTE_COLOR;
} else {
colour = 16;
}
DrawString(
ss->x >> zoom, (ss->y >> zoom) - (ss->width & 0x8000 ? 2 : 0),
ss->string, colour
);
ss = ss->next;
} while (ss != NULL);
}
void ViewportDoDraw(const ViewPort *vp, int left, int top, int right, int bottom)
{
ViewportDrawer vd;
int mask;
int x;
int y;
DrawPixelInfo *old_dpi;
byte mem[VIEWPORT_DRAW_MEM];
ParentSpriteToDraw *parent_list[6144];
_cur_vd = &vd;
old_dpi = _cur_dpi;
_cur_dpi = &vd.dpi;
vd.dpi.zoom = vp->zoom;
mask = (-1) << vp->zoom;
vd.combine_sprites = 0;
vd.dpi.width = (right - left) & mask;
vd.dpi.height = (bottom - top) & mask;
vd.dpi.left = left & mask;
vd.dpi.top = top & mask;
vd.dpi.pitch = old_dpi->pitch;
x = ((vd.dpi.left - (vp->virtual_left&mask)) >> vp->zoom) + vp->left;
y = ((vd.dpi.top - (vp->virtual_top&mask)) >> vp->zoom) + vp->top;
vd.dpi.dst_ptr = old_dpi->dst_ptr + x - old_dpi->left + (y - old_dpi->top) * old_dpi->pitch;
vd.parent_list = parent_list;
vd.eof_parent_list = endof(parent_list);
vd.spritelist_mem = mem;
vd.eof_spritelist_mem = endof(mem) - sizeof(LARGEST_SPRITELIST_STRUCT);
vd.last_string = &vd.first_string;
vd.first_string = NULL;
vd.last_tile = &vd.first_tile;
vd.first_tile = NULL;
ViewportAddLandscape();
#if !defined(NEW_ROTATION)
ViewportAddVehicles(&vd.dpi);
DrawTextEffects(&vd.dpi);
ViewportAddTownNames(&vd.dpi);
ViewportAddStationNames(&vd.dpi);
ViewportAddSigns(&vd.dpi);
ViewportAddWaypoints(&vd.dpi);
#endif
// This assert should never happen (because the length of the parent_list
// is checked)
assert(vd.parent_list <= endof(parent_list));
if (vd.first_tile != NULL) ViewportDrawTileSprites(vd.first_tile);
/* null terminate parent sprite list */
*vd.parent_list = NULL;
ViewportSortParentSprites(parent_list);
ViewportDrawParentSprites(parent_list);
if (vd.first_string != NULL) ViewportDrawStrings(&vd.dpi, vd.first_string);
_cur_dpi = old_dpi;
}
// Make sure we don't draw a too big area at a time.
// If we do, the sprite memory will overflow.
static void ViewportDrawChk(const ViewPort *vp, int left, int top, int right, int bottom)
{
if (((bottom - top) * (right - left) << vp->zoom) > 180000) {
if ((bottom - top) > (right - left)) {
int t = (top + bottom) >> 1;
ViewportDrawChk(vp, left, top, right, t);
ViewportDrawChk(vp, left, t, right, bottom);
} else {
int t = (left + right) >> 1;
ViewportDrawChk(vp, left, top, t, bottom);
ViewportDrawChk(vp, t, top, right, bottom);
}
} else {
ViewportDoDraw(vp,
((left - vp->left) << vp->zoom) + vp->virtual_left,
((top - vp->top) << vp->zoom) + vp->virtual_top,
((right - vp->left) << vp->zoom) + vp->virtual_left,
((bottom - vp->top) << vp->zoom) + vp->virtual_top
);
}
}
static inline void ViewportDraw(const ViewPort *vp, int left, int top, int right, int bottom)
{
if (right <= vp->left || bottom <= vp->top) return;
if (left >= vp->left + vp->width) return;
if (left < vp->left) left = vp->left;
if (right > vp->left + vp->width) right = vp->left + vp->width;
if (top >= vp->top + vp->height) return;
if (top < vp->top) top = vp->top;
if (bottom > vp->top + vp->height) bottom = vp->top + vp->height;
ViewportDrawChk(vp, left, top, right, bottom);
}
void DrawWindowViewport(const Window *w)
{
DrawPixelInfo *dpi = _cur_dpi;
dpi->left += w->left;
dpi->top += w->top;
ViewportDraw(w->viewport, dpi->left, dpi->top, dpi->left + dpi->width, dpi->top + dpi->height);
dpi->left -= w->left;
dpi->top -= w->top;
}
void UpdateViewportPosition(Window *w)
{
const ViewPort *vp = w->viewport;
if (WP(w, vp_d).follow_vehicle != INVALID_VEHICLE) {
const Vehicle* veh = GetVehicle(WP(w,vp_d).follow_vehicle);
Point pt = MapXYZToViewport(vp, veh->x_pos, veh->y_pos, veh->z_pos);
SetViewportPosition(w, pt.x, pt.y);
} else {
#if !defined(NEW_ROTATION)
int x;
int y;
int vx;
int vy;
// Center of the viewport is hot spot
x = WP(w,vp_d).scrollpos_x + vp->virtual_width / 2;
y = WP(w,vp_d).scrollpos_y + vp->virtual_height / 2;
// Convert viewport coordinates to map coordinates
// Calculation is scaled by 4 to avoid rounding errors
vx = -x + y * 2;
vy = x + y * 2;
// clamp to size of map
vx = clamp(vx, 0 * 4, MapMaxX() * TILE_SIZE * 4);
vy = clamp(vy, 0 * 4, MapMaxY() * TILE_SIZE * 4);
// Convert map coordinates to viewport coordinates
x = (-vx + vy) / 2;
y = ( vx + vy) / 4;
// Set position
WP(w, vp_d).scrollpos_x = x - vp->virtual_width / 2;
WP(w, vp_d).scrollpos_y = y - vp->virtual_height / 2;
#else
int x,y,t;
int err;
x = WP(w,vp_d).scrollpos_x >> 2;
y = WP(w,vp_d).scrollpos_y >> 1;
t = x;
x = x + y;
y = x - y;
err= 0;
if (err != 0) {
/* coordinate remap */
Point pt = RemapCoords(x, y, 0);
t = (-1) << vp->zoom;
WP(w,vp_d).scrollpos_x = pt.x & t;
WP(w,vp_d).scrollpos_y = pt.y & t;
}
#endif
SetViewportPosition(w, WP(w, vp_d).scrollpos_x, WP(w, vp_d).scrollpos_y);
}
}
static void MarkViewportDirty(const ViewPort *vp, int left, int top, int right, int bottom)
{
right -= vp->virtual_left;
if (right <= 0) return;
bottom -= vp->virtual_top;
if (bottom <= 0) return;
left = max(0, left - vp->virtual_left);
if (left >= vp->virtual_width) return;
top = max(0, top - vp->virtual_top);
if (top >= vp->virtual_height) return;
SetDirtyBlocks(
(left >> vp->zoom) + vp->left,
(top >> vp->zoom) + vp->top,
(right >> vp->zoom) + vp->left,
(bottom >> vp->zoom) + vp->top
);
}
void MarkAllViewportsDirty(int left, int top, int right, int bottom)
{
const ViewPort *vp = _viewports;
uint32 act = _active_viewports;
do {
if (act & 1) {
assert(vp->width != 0);
MarkViewportDirty(vp, left, top, right, bottom);
}
} while (vp++,act>>=1);
}
void MarkTileDirtyByTile(TileIndex tile)
{
Point pt = RemapCoords(TileX(tile) * TILE_SIZE, TileY(tile) * TILE_SIZE, GetTileZ(tile));
MarkAllViewportsDirty(
pt.x - 31,
pt.y - 122,
pt.x - 31 + 67,
pt.y - 122 + 154
);
}
void MarkTileDirty(int x, int y)
{
uint z = 0;
Point pt;
if (IS_INT_INSIDE(x, 0, MapSizeX() * TILE_SIZE) &&
IS_INT_INSIDE(y, 0, MapSizeY() * TILE_SIZE))
z = GetTileZ(TileVirtXY(x, y));
pt = RemapCoords(x, y, z);
MarkAllViewportsDirty(
pt.x - 31,
pt.y - 122,
pt.x - 31 + 67,
pt.y - 122 + 154
);
}
static void SetSelectionTilesDirty(void)
{
int y_size, x_size;
int x = _thd.pos.x;
int y = _thd.pos.y;
x_size = _thd.size.x;
y_size = _thd.size.y;
if (_thd.outersize.x) {
x_size += _thd.outersize.x;
x += _thd.offs.x;
y_size += _thd.outersize.y;
y += _thd.offs.y;
}
assert(x_size > 0);
assert(y_size > 0);
x_size += x;
y_size += y;
do {
int y_bk = y;
do {
MarkTileDirty(x, y);
} while ( (y += TILE_SIZE) != y_size);
y = y_bk;
} while ( (x += TILE_SIZE) != x_size);
}
void SetSelectionRed(bool b)
{
_thd.make_square_red = b;
SetSelectionTilesDirty();
}
static bool CheckClickOnTown(const ViewPort *vp, int x, int y)
{
const Town *t;
if (!(_display_opt & DO_SHOW_TOWN_NAMES)) return false;
switch (vp->zoom) {
case 0:
x = x - vp->left + vp->virtual_left;
y = y - vp->top + vp->virtual_top;
FOR_ALL_TOWNS(t) {
if (y >= t->sign.top &&
y < t->sign.top + 12 &&
x >= t->sign.left &&
x < t->sign.left + t->sign.width_1) {
ShowTownViewWindow(t->index);
return true;
}
}
break;
case 1:
x = (x - vp->left + 1) * 2 + vp->virtual_left;
y = (y - vp->top + 1) * 2 + vp->virtual_top;
FOR_ALL_TOWNS(t) {
if (y >= t->sign.top &&
y < t->sign.top + 24 &&
x >= t->sign.left &&
x < t->sign.left + t->sign.width_1 * 2) {
ShowTownViewWindow(t->index);
return true;
}
}
break;
default:
x = (x - vp->left + 3) * 4 + vp->virtual_left;
y = (y - vp->top + 3) * 4 + vp->virtual_top;
FOR_ALL_TOWNS(t) {
if (y >= t->sign.top &&
y < t->sign.top + 24 &&
x >= t->sign.left &&
x < t->sign.left + t->sign.width_2 * 4) {
ShowTownViewWindow(t->index);
return true;
}
}
break;
}
return false;
}
static bool CheckClickOnStation(const ViewPort *vp, int x, int y)
{
const Station *st;
if (!(_display_opt & DO_SHOW_STATION_NAMES)) return false;
switch (vp->zoom) {
case 0:
x = x - vp->left + vp->virtual_left;
y = y - vp->top + vp->virtual_top;
FOR_ALL_STATIONS(st) {
if (y >= st->sign.top &&
y < st->sign.top + 12 &&
x >= st->sign.left &&
x < st->sign.left + st->sign.width_1) {
ShowStationViewWindow(st->index);
return true;
}
}
break;
case 1:
x = (x - vp->left + 1) * 2 + vp->virtual_left;
y = (y - vp->top + 1) * 2 + vp->virtual_top;
FOR_ALL_STATIONS(st) {
if (y >= st->sign.top &&
y < st->sign.top + 24 &&
x >= st->sign.left &&
x < st->sign.left + st->sign.width_1 * 2) {
ShowStationViewWindow(st->index);
return true;
}
}
break;
default:
x = (x - vp->left + 3) * 4 + vp->virtual_left;
y = (y - vp->top + 3) * 4 + vp->virtual_top;
FOR_ALL_STATIONS(st) {
if (y >= st->sign.top &&
y < st->sign.top + 24 &&
x >= st->sign.left &&
x < st->sign.left + st->sign.width_2 * 4) {
ShowStationViewWindow(st->index);
return true;
}
}
break;
}
return false;
}
static bool CheckClickOnSign(const ViewPort *vp, int x, int y)
{
const Sign *si;
if (!(_display_opt & DO_SHOW_SIGNS)) return false;
switch (vp->zoom) {
case 0:
x = x - vp->left + vp->virtual_left;
y = y - vp->top + vp->virtual_top;
FOR_ALL_SIGNS(si) {
if (y >= si->sign.top &&
y < si->sign.top + 12 &&
x >= si->sign.left &&
x < si->sign.left + si->sign.width_1) {
ShowRenameSignWindow(si);
return true;
}
}
break;
case 1:
x = (x - vp->left + 1) * 2 + vp->virtual_left;
y = (y - vp->top + 1) * 2 + vp->virtual_top;
FOR_ALL_SIGNS(si) {
if (y >= si->sign.top &&
y < si->sign.top + 24 &&
x >= si->sign.left &&
x < si->sign.left + si->sign.width_1 * 2) {
ShowRenameSignWindow(si);
return true;
}
}
break;
default:
x = (x - vp->left + 3) * 4 + vp->virtual_left;
y = (y - vp->top + 3) * 4 + vp->virtual_top;
FOR_ALL_SIGNS(si) {
if (y >= si->sign.top &&
y < si->sign.top + 24 &&
x >= si->sign.left &&
x < si->sign.left + si->sign.width_2 * 4) {
ShowRenameSignWindow(si);
return true;
}
}
break;
}
return false;
}
static bool CheckClickOnWaypoint(const ViewPort *vp, int x, int y)
{
const Waypoint *wp;
if (!(_display_opt & DO_WAYPOINTS)) return false;
switch (vp->zoom) {
case 0:
x = x - vp->left + vp->virtual_left;
y = y - vp->top + vp->virtual_top;
FOR_ALL_WAYPOINTS(wp) {
if (y >= wp->sign.top &&
y < wp->sign.top + 12 &&
x >= wp->sign.left &&
x < wp->sign.left + wp->sign.width_1) {
ShowRenameWaypointWindow(wp);
return true;
}
}
break;
case 1:
x = (x - vp->left + 1) * 2 + vp->virtual_left;
y = (y - vp->top + 1) * 2 + vp->virtual_top;
FOR_ALL_WAYPOINTS(wp) {
if (y >= wp->sign.top &&
y < wp->sign.top + 24 &&
x >= wp->sign.left &&
x < wp->sign.left + wp->sign.width_1 * 2) {
ShowRenameWaypointWindow(wp);
return true;
}
}
break;
default:
x = (x - vp->left + 3) * 4 + vp->virtual_left;
y = (y - vp->top + 3) * 4 + vp->virtual_top;
FOR_ALL_WAYPOINTS(wp) {
if (y >= wp->sign.top &&
y < wp->sign.top + 24 &&
x >= wp->sign.left &&
x < wp->sign.left + wp->sign.width_2 * 4) {
ShowRenameWaypointWindow(wp);
return true;
}
}
break;
}
return false;
}
static void CheckClickOnLandscape(const ViewPort *vp, int x, int y)
{
Point pt = TranslateXYToTileCoord(vp, x, y);
if (pt.x != -1) ClickTile(TileVirtXY(pt.x, pt.y));
}
static void SafeShowTrainViewWindow(const Vehicle* v)
{
if (!IsFrontEngine(v)) v = GetFirstVehicleInChain(v);
ShowTrainViewWindow(v);
}
static void Nop(const Vehicle *v) {}
typedef void OnVehicleClickProc(const Vehicle *v);
static OnVehicleClickProc* const _on_vehicle_click_proc[] = {
SafeShowTrainViewWindow,
ShowRoadVehViewWindow,
ShowShipViewWindow,
ShowAircraftViewWindow,
Nop, // Special vehicles
Nop // Disaster vehicles
};
void HandleViewportClicked(const ViewPort *vp, int x, int y)
{
const Vehicle *v;
if (CheckClickOnTown(vp, x, y)) return;
if (CheckClickOnStation(vp, x, y)) return;
if (CheckClickOnSign(vp, x, y)) return;
if (CheckClickOnWaypoint(vp, x, y)) return;
CheckClickOnLandscape(vp, x, y);
v = CheckClickOnVehicle(vp, x, y);
if (v != NULL) {
DEBUG(misc, 2, "Vehicle %d (index %d) at %p", v->unitnumber, v->index, v);
_on_vehicle_click_proc[v->type - 0x10](v);
}
}
Vehicle *CheckMouseOverVehicle(void)
{
const Window *w;
const ViewPort *vp;
int x = _cursor.pos.x;
int y = _cursor.pos.y;
w = FindWindowFromPt(x, y);
if (w == NULL) return NULL;
vp = IsPtInWindowViewport(w, x, y);
return (vp != NULL) ? CheckClickOnVehicle(vp, x, y) : NULL;
}
void PlaceObject(void)
{
Point pt;
Window *w;
pt = GetTileBelowCursor();
if (pt.x == -1) return;
if (_thd.place_mode == VHM_POINT) {
pt.x += 8;
pt.y += 8;
}
_tile_fract_coords.x = pt.x & 0xF;
_tile_fract_coords.y = pt.y & 0xF;
w = GetCallbackWnd();
if (w != NULL) {
WindowEvent e;
e.event = WE_PLACE_OBJ;
e.we.place.pt = pt;
e.we.place.tile = TileVirtXY(pt.x, pt.y);
w->wndproc(w, &e);
}
}
/* scrolls the viewport in a window to a given location */
bool ScrollWindowTo(int x , int y, Window *w)
{
Point pt;
pt = MapXYZToViewport(w->viewport, x, y, GetSlopeZ(x, y));
WP(w, vp_d).follow_vehicle = INVALID_VEHICLE;
if (WP(w, vp_d).scrollpos_x == pt.x && WP(w, vp_d).scrollpos_y == pt.y)
return false;
WP(w, vp_d).scrollpos_x = pt.x;
WP(w, vp_d).scrollpos_y = pt.y;
return true;
}
bool ScrollMainWindowTo(int x, int y)
{
Window *w;
bool res = ScrollWindowTo(x, y, FindWindowById(WC_MAIN_WINDOW, 0));
/* If a user scrolls to a tile (via what way what so ever) and already is on
* that tile (e.g.: pressed twice), move the smallmap to that location,
* so you directly see where you are on the smallmap. */
if (res) return res;
w = FindWindowById(WC_SMALLMAP, 0);
if (w == NULL) return res;
SmallMapCenterOnCurrentPos(w);
return res;
}
bool ScrollMainWindowToTile(TileIndex tile)
{
return ScrollMainWindowTo(TileX(tile) * TILE_SIZE + TILE_SIZE / 2, TileY(tile) * TILE_SIZE + TILE_SIZE / 2);
}
void SetRedErrorSquare(TileIndex tile)
{
TileIndex old;
old = _thd.redsq;
_thd.redsq = tile;
if (tile != old) {
if (tile != 0) MarkTileDirtyByTile(tile);
if (old != 0) MarkTileDirtyByTile(old);
}
}
void SetTileSelectSize(int w, int h)
{
_thd.new_size.x = w * TILE_SIZE;
_thd.new_size.y = h * TILE_SIZE;
_thd.new_outersize.x = 0;
_thd.new_outersize.y = 0;
}
void SetTileSelectBigSize(int ox, int oy, int sx, int sy)
{
_thd.offs.x = ox * TILE_SIZE;
_thd.offs.y = oy * TILE_SIZE;
_thd.new_outersize.x = sx * TILE_SIZE;
_thd.new_outersize.y = sy * TILE_SIZE;
}
/* returns the best autorail highlight type from map coordinates */
static byte GetAutorailHT(int x, int y)
{
return HT_RAIL | _AutorailPiece[x & 0xF][y & 0xF];
}
// called regular to update tile highlighting in all cases
void UpdateTileSelection(void)
{
int x1;
int y1;
_thd.new_drawstyle = 0;
if (_thd.place_mode == VHM_SPECIAL) {
x1 = _thd.selend.x;
y1 = _thd.selend.y;
if (x1 != -1) {
int x2 = _thd.selstart.x;
int y2 = _thd.selstart.y;
x1 &= ~0xF;
y1 &= ~0xF;
if (x1 >= x2) intswap(x1,x2);
if (y1 >= y2) intswap(y1,y2);
_thd.new_pos.x = x1;
_thd.new_pos.y = y1;
_thd.new_size.x = x2 - x1 + TILE_SIZE;
_thd.new_size.y = y2 - y1 + TILE_SIZE;
_thd.new_drawstyle = _thd.next_drawstyle;
}
} else if (_thd.place_mode != VHM_NONE) {
Point pt = GetTileBelowCursor();
x1 = pt.x;
y1 = pt.y;
if (x1 != -1) {
switch (_thd.place_mode) {
case VHM_RECT:
_thd.new_drawstyle = HT_RECT;
break;
case VHM_POINT:
_thd.new_drawstyle = HT_POINT;
x1 += 8;
y1 += 8;
break;
case VHM_RAIL:
_thd.new_drawstyle = GetAutorailHT(pt.x, pt.y); // draw one highlighted tile
}
_thd.new_pos.x = x1 & ~0xF;
_thd.new_pos.y = y1 & ~0xF;
}
}
// redraw selection
if (_thd.drawstyle != _thd.new_drawstyle ||
_thd.pos.x != _thd.new_pos.x || _thd.pos.y != _thd.new_pos.y ||
_thd.size.x != _thd.new_size.x || _thd.size.y != _thd.new_size.y ||
_thd.outersize.x != _thd.new_outersize.x ||
_thd.outersize.y != _thd.new_outersize.y) {
// clear the old selection?
if (_thd.drawstyle) SetSelectionTilesDirty();
_thd.drawstyle = _thd.new_drawstyle;
_thd.pos = _thd.new_pos;
_thd.size = _thd.new_size;
_thd.outersize = _thd.new_outersize;
_thd.dirty = 0xff;
// draw the new selection?
if (_thd.new_drawstyle) SetSelectionTilesDirty();
}
}
// highlighting tiles while only going over them with the mouse
void VpStartPlaceSizing(TileIndex tile, int user)
{
_thd.userdata = user;
_thd.selend.x = TileX(tile) * TILE_SIZE;
_thd.selstart.x = TileX(tile) * TILE_SIZE;
_thd.selend.y = TileY(tile) * TILE_SIZE;
_thd.selstart.y = TileY(tile) * TILE_SIZE;
if (_thd.place_mode == VHM_RECT) {
_thd.place_mode = VHM_SPECIAL;
_thd.next_drawstyle = HT_RECT;
} else if (_thd.place_mode == VHM_RAIL) { // autorail one piece
_thd.place_mode = VHM_SPECIAL;
_thd.next_drawstyle = _thd.drawstyle;
} else {
_thd.place_mode = VHM_SPECIAL;
_thd.next_drawstyle = HT_POINT;
}
_special_mouse_mode = WSM_SIZING;
}
void VpSetPlaceSizingLimit(int limit)
{
_thd.sizelimit = limit;
}
/**
* Highlights all tiles between a set of two tiles. Used in dock and tunnel placement
* @param from TileIndex of the first tile to highlight
* @param to TileIndex of the last tile to highlight */
void VpSetPresizeRange(TileIndex from, TileIndex to)
{
uint distance = DistanceManhattan(from, to) + 1;
_thd.selend.x = TileX(to) * TILE_SIZE;
_thd.selend.y = TileY(to) * TILE_SIZE;
_thd.selstart.x = TileX(from) * TILE_SIZE;
_thd.selstart.y = TileY(from) * TILE_SIZE;
_thd.next_drawstyle = HT_RECT;
/* show measurement only if there is any length to speak of */
if (distance > 1) GuiShowTooltipsWithArgs(STR_MEASURE_LENGTH, 1, &distance);
}
static void VpStartPreSizing(void)
{
_thd.selend.x = -1;
_special_mouse_mode = WSM_PRESIZE;
}
/* returns information about the 2x1 piece to be build.
* The lower bits (0-3) are the track type. */
static byte Check2x1AutoRail(int mode)
{
int fxpy = _tile_fract_coords.x + _tile_fract_coords.y;
int sxpy = (_thd.selend.x & 0xF) + (_thd.selend.y & 0xF);
int fxmy = _tile_fract_coords.x - _tile_fract_coords.y;
int sxmy = (_thd.selend.x & 0xF) - (_thd.selend.y & 0xF);
switch (mode) {
case 0: // end piece is lower right
if (fxpy >= 20 && sxpy <= 12) { /*SwapSelection(); DoRailroadTrack(0); */return 3; }
if (fxmy < -3 && sxmy > 3) {/* DoRailroadTrack(0); */return 5; }
return 1;
case 1:
if (fxmy > 3 && sxmy < -3) { /*SwapSelection(); DoRailroadTrack(0); */return 4; }
if (fxpy <= 12 && sxpy >= 20) { /*DoRailroadTrack(0); */return 2; }
return 1;
case 2:
if (fxmy > 3 && sxmy < -3) { /*DoRailroadTrack(3);*/ return 4; }
if (fxpy >= 20 && sxpy <= 12) { /*SwapSelection(); DoRailroadTrack(0); */return 3; }
return 0;
case 3:
if (fxmy < -3 && sxmy > 3) { /*SwapSelection(); DoRailroadTrack(3);*/ return 5; }
if (fxpy <= 12 && sxpy >= 20) { /*DoRailroadTrack(0); */return 2; }
return 0;
}
return 0; // avoids compiler warnings
}
/** Check if the direction of start and end tile should be swapped based on
* the dragging-style. Default directions are:
* in the case of a line (HT_RAIL, HT_LINE): DIR_NE, DIR_NW, DIR_N, DIR_E
* in the case of a rect (HT_RECT, HT_POINT): DIR_S, DIR_E
* For example dragging a rectangle area from south to north should be swapped to
* north-south (DIR_S) to obtain the same results with less code. This is what
* the return value signifies.
* @param style HighLightStyle dragging style
* @param start_tile, end_tile start and end tile of drag
* @param boolean value which when true means start/end should be swapped */
static bool SwapDirection(HighLightStyle style, TileIndex start_tile, TileIndex end_tile)
{
uint start_x = TileX(start_tile);
uint start_y = TileY(start_tile);
uint end_x = TileX(end_tile);
uint end_y = TileY(end_tile);
switch (style & HT_DRAG_MASK) {
case HT_RAIL:
case HT_LINE: return (end_x > start_x || (end_x == start_x && end_y > start_y));
case HT_RECT:
case HT_POINT: return (end_x != start_x && end_y < start_y);
default: NOT_REACHED();
}
return false;
}
/** Calculates height difference between one tile and another
* Multiplies the result to suit the standard given by minimap - 50 meters high
* To correctly get the height difference we need the direction we are dragging
* in, as well as with what kind of tool we are dragging. For example a horizontal
* autorail tool that starts in bottom and ends at the top of a tile will need the
* maximum of SW,S and SE,N corners respectively. This is handled by the lookup table below
* See _tileoffs_by_dir in map.c for the direction enums if you can't figure out
* the values yourself.
* @param style HightlightStyle of drag. This includes direction and style (autorail, rect, etc.)
* @param distance amount of tiles dragged, important for horizontal/vertical drags
* ignored for others
* @param start_tile, end_tile start and end tile of drag operation
* @return height difference between two tiles. Tile measurement tool utilizes
* this value in its tooltips */
static int CalcHeightdiff(HighLightStyle style, uint distance, TileIndex start_tile, TileIndex end_tile)
{
bool swap = SwapDirection(style, start_tile, end_tile);
byte style_t;
uint h0, h1, ht; // start heigth, end height, and temp variable
if (start_tile == end_tile) return 0;
if (swap) swap_tile(&start_tile, &end_tile);
switch (style & HT_DRAG_MASK) {
case HT_RECT: {
static const TileIndexDiffC heightdiff_area_by_dir[] = {
/* Start */ {1, 0}, /* Dragging east */ {0, 0}, /* Dragging south */
/* End */ {0, 1}, /* Dragging east */ {1, 1} /* Dragging south */
};
/* In the case of an area we can determine whether we were dragging south or
* east by checking the X-coordinates of the tiles */
style_t = (byte)(TileX(end_tile) > TileX(start_tile));
start_tile = TILE_ADD(start_tile, ToTileIndexDiff(heightdiff_area_by_dir[style_t]));
end_tile = TILE_ADD(end_tile, ToTileIndexDiff(heightdiff_area_by_dir[2 + style_t]));
}
/* Fallthrough */
case HT_POINT:
h0 = TileHeight(start_tile);
h1 = TileHeight(end_tile);
break;
default: { /* All other types, this is mostly only line/autorail */
static const HighLightStyle flip_style_direction[] = {
HT_DIR_X, HT_DIR_Y, HT_DIR_HL, HT_DIR_HU, HT_DIR_VR, HT_DIR_VL
};
static const TileIndexDiffC heightdiff_line_by_dir[] = {
/* Start */ {1, 0}, {1, 1}, /* HT_DIR_X */ {0, 1}, {1, 1}, /* HT_DIR_Y */
/* Start */ {1, 0}, {0, 0}, /* HT_DIR_HU */ {1, 0}, {1, 1}, /* HT_DIR_HL */
/* Start */ {1, 0}, {1, 1}, /* HT_DIR_VL */ {0, 1}, {1, 1}, /* HT_DIR_VR */
/* Start */ {0, 1}, {0, 0}, /* HT_DIR_X */ {1, 0}, {0, 0}, /* HT_DIR_Y */
/* End */ {0, 1}, {0, 0}, /* HT_DIR_HU */ {1, 1}, {0, 1}, /* HT_DIR_HL */
/* End */ {1, 0}, {0, 0}, /* HT_DIR_VL */ {0, 0}, {0, 1}, /* HT_DIR_VR */
};
distance %= 2; // we're only interested if the distance is even or uneven
style &= HT_DIR_MASK;
/* To handle autorail, we do some magic to be able to use a lookup table.
* Firstly if we drag the other way around, we switch start&end, and if needed
* also flip the drag-position. Eg if it was on the left, and the distance is even
* that means the end, which is now the start is on the right */
if (swap && distance == 0) style = flip_style_direction[style];
/* Use lookup table for start-tile based on HighLightStyle direction */
style_t = style * 2;
assert(style_t < lengthof(heightdiff_line_by_dir) - 13);
h0 = TileHeight(TILE_ADD(start_tile, ToTileIndexDiff(heightdiff_line_by_dir[style_t])));
ht = TileHeight(TILE_ADD(start_tile, ToTileIndexDiff(heightdiff_line_by_dir[style_t + 1])));
h0 = maxu(h0, ht);
/* Use lookup table for end-tile based on HighLightStyle direction
* flip around side (lower/upper, left/right) based on distance */
if (distance == 0) style_t = flip_style_direction[style] * 2;
assert(style_t < lengthof(heightdiff_line_by_dir) - 13);
h1 = TileHeight(TILE_ADD(end_tile, ToTileIndexDiff(heightdiff_line_by_dir[12 + style_t])));
ht = TileHeight(TILE_ADD(end_tile, ToTileIndexDiff(heightdiff_line_by_dir[12 + style_t + 1])));
h1 = maxu(h1, ht);
} break;
}
if (swap) swap_uint32(&h0, &h1);
/* Minimap shows height in intervals of 50 meters, let's do the same */
return (int)(h1 - h0) * 50;
}
static const StringID measure_strings_length[] = {STR_NULL, STR_MEASURE_LENGTH, STR_MEASURE_LENGTH_HEIGHTDIFF};
// while dragging
static void CalcRaildirsDrawstyle(TileHighlightData *thd, int x, int y, int method)
{
HighLightStyle b;
uint w, h;
int dx = thd->selstart.x - (thd->selend.x & ~0xF);
int dy = thd->selstart.y - (thd->selend.y & ~0xF);
w = myabs(dx) + 16;
h = myabs(dy) + 16;
if (TileVirtXY(thd->selstart.x, thd->selstart.y) == TileVirtXY(x, y)) { // check if we're only within one tile
if (method == VPM_RAILDIRS) {
b = GetAutorailHT(x, y);
} else { // rect for autosignals on one tile
b = HT_RECT;
}
} else if (h == 16) { // Is this in X direction?
if (dx == 16) { // 2x1 special handling
b = (Check2x1AutoRail(3)) | HT_LINE;
} else if (dx == -16) {
b = (Check2x1AutoRail(2)) | HT_LINE;
} else {
b = HT_LINE | HT_DIR_X;
}
y = thd->selstart.y;
} else if (w == 16) { // Or Y direction?
if (dy == 16) { // 2x1 special handling
b = (Check2x1AutoRail(1)) | HT_LINE;
} else if (dy == -16) { // 2x1 other direction
b = (Check2x1AutoRail(0)) | HT_LINE;
} else {
b = HT_LINE | HT_DIR_Y;
}
x = thd->selstart.x;
} else if (w > h * 2) { // still count as x dir?
b = HT_LINE | HT_DIR_X;
y = thd->selstart.y;
} else if (h > w * 2) { // still count as y dir?
b = HT_LINE | HT_DIR_Y;
x = thd->selstart.x;
} else { // complicated direction
int d = w - h;
thd->selend.x = thd->selend.x & ~0xF;
thd->selend.y = thd->selend.y & ~0xF;
// four cases.
if (x > thd->selstart.x) {
if (y > thd->selstart.y) {
// south
if (d == 0) {
b = (x & 0xF) > (y & 0xF) ? HT_LINE | HT_DIR_VL : HT_LINE | HT_DIR_VR;
} else if (d >= 0) {
x = thd->selstart.x + h;
b = HT_LINE | HT_DIR_VL;
// return px == py || px == py + 16;
} else {
y = thd->selstart.y + w;
b = HT_LINE | HT_DIR_VR;
} // return px == py || px == py - 16;
} else {
// west
if (d == 0) {
b = (x & 0xF) + (y & 0xF) >= 0x10 ? HT_LINE | HT_DIR_HL : HT_LINE | HT_DIR_HU;
} else if (d >= 0) {
x = thd->selstart.x + h;
b = HT_LINE | HT_DIR_HL;
} else {
y = thd->selstart.y - w;
b = HT_LINE | HT_DIR_HU;
}
}
} else {
if (y > thd->selstart.y) {
// east
if (d == 0) {
b = (x & 0xF) + (y & 0xF) >= 0x10 ? HT_LINE | HT_DIR_HL : HT_LINE | HT_DIR_HU;
} else if (d >= 0) {
x = thd->selstart.x - h;
b = HT_LINE | HT_DIR_HU;
// return px == -py || px == -py - 16;
} else {
y = thd->selstart.y + w;
b = HT_LINE | HT_DIR_HL;
} // return px == -py || px == -py + 16;
} else {
// north
if (d == 0) {
b = (x & 0xF) > (y & 0xF) ? HT_LINE | HT_DIR_VL : HT_LINE | HT_DIR_VR;
} else if (d >= 0) {
x = thd->selstart.x - h;
b = HT_LINE | HT_DIR_VR;
// return px == py || px == py - 16;
} else {
y = thd->selstart.y - w;
b = HT_LINE | HT_DIR_VL;
} //return px == py || px == py + 16;
}
}
}
if (_patches.measure_tooltip) {
TileIndex t0 = TileVirtXY(thd->selstart.x, thd->selstart.y);
TileIndex t1 = TileVirtXY(x, y);
uint distance = DistanceManhattan(t0, t1) + 1;
byte index = 0;
uint params[2];
if (distance != 1) {
int heightdiff = CalcHeightdiff(b, distance, t0, t1);
/* If we are showing a tooltip for horizontal or vertical drags,
* 2 tiles have a length of 1. To bias towards the ceiling we add
* one before division. It feels more natural to count 3 lengths as 2 */
if ((b & HT_DIR_MASK) != HT_DIR_X && (b & HT_DIR_MASK) != HT_DIR_Y) {
distance = (distance + 1) / 2;
}
params[index++] = distance;
if (heightdiff != 0) params[index++] = heightdiff;
}
GuiShowTooltipsWithArgs(measure_strings_length[index], index, params);
}
thd->selend.x = x;
thd->selend.y = y;
thd->next_drawstyle = b;
}
/**
* Selects tiles while dragging
* @param x X coordinate of end of selection
* @param y Y coordinate of end of selection
* @param method modifies the way tiles are selected. Possible
* methods are VPM_* in viewport.h */
void VpSelectTilesWithMethod(int x, int y, int method)
{
int sx, sy;
HighLightStyle style;
if (x == -1) {
_thd.selend.x = -1;
return;
}
/* Special handling of drag in any (8-way) direction */
if (method == VPM_RAILDIRS || method == VPM_SIGNALDIRS) {
_thd.selend.x = x;
_thd.selend.y = y;
CalcRaildirsDrawstyle(&_thd, x, y, method);
return;
}
if (_thd.next_drawstyle == HT_POINT) {
x += TILE_SIZE / 2;
y += TILE_SIZE / 2;
}
sx = _thd.selstart.x;
sy = _thd.selstart.y;
switch (method) {
case VPM_X_OR_Y: /* drag in X or Y direction */
if (myabs(sy - y) < myabs(sx - x)) {
y = sy;
style = HT_DIR_X;
} else {
x = sx;
style = HT_DIR_Y;
}
goto calc_heightdiff_single_direction;
case VPM_FIX_X: /* drag in Y direction */
x = sx;
style = HT_DIR_Y;
goto calc_heightdiff_single_direction;
case VPM_FIX_Y: /* drag in X direction */
y = sy;
style = HT_DIR_X;
calc_heightdiff_single_direction:;
if (_patches.measure_tooltip) {
TileIndex t0 = TileVirtXY(sx, sy);
TileIndex t1 = TileVirtXY(x, y);
uint distance = DistanceManhattan(t0, t1) + 1;
byte index = 0;
uint params[2];
if (distance != 1) {
/* With current code passing a HT_LINE style to calculate the height
* difference is enough. However if/when a point-tool is created
* with this method, function should be called with new_style (below)
* instead of HT_LINE | style case HT_POINT is handled specially
* new_style := (_thd.next_drawstyle & HT_RECT) ? HT_LINE | style : _thd.next_drawstyle; */
int heightdiff = CalcHeightdiff(HT_LINE | style, 0, t0, t1);
params[index++] = distance;
if (heightdiff != 0) params[index++] = heightdiff;
}
GuiShowTooltipsWithArgs(measure_strings_length[index], index, params);
} break;
case VPM_X_AND_Y_LIMITED: { /* drag an X by Y constrained rect area */
int limit = (_thd.sizelimit - 1) * TILE_SIZE;
x = sx + clamp(x - sx, -limit, limit);
y = sy + clamp(y - sy, -limit, limit);
/* Fallthrough */
case VPM_X_AND_Y: /* drag an X by Y area */
if (_patches.measure_tooltip) {
static const StringID measure_strings_area[] = {
STR_NULL, STR_NULL, STR_MEASURE_AREA, STR_MEASURE_AREA_HEIGHTDIFF
};
TileIndex t0 = TileVirtXY(sx, sy);
TileIndex t1 = TileVirtXY(x, y);
uint dx = abs(TileX(t0) - TileX(t1)) + 1;
uint dy = abs(TileY(t0) - TileY(t1)) + 1;
byte index = 0;
uint params[3];
/* If dragging an area (eg dynamite tool) and it is actually a single
* row/column, change the type to 'line' to get proper calculation for height */
style = _thd.next_drawstyle;
if (style & HT_RECT) {
if (dx == 1) {
style = HT_LINE | HT_DIR_Y;
} else if (dy == 1) {
style = HT_LINE | HT_DIR_X;
}
}
if (dx != 1 || dy != 1) {
int heightdiff = CalcHeightdiff(style, 0, t0, t1);
params[index++] = dx;
params[index++] = dy;
if (heightdiff != 0) params[index++] = heightdiff;
}
GuiShowTooltipsWithArgs(measure_strings_area[index], index, params);
}
break;
}
default: NOT_REACHED();
}
_thd.selend.x = x;
_thd.selend.y = y;
}
// while dragging
bool VpHandlePlaceSizingDrag(void)
{
Window *w;
WindowEvent e;
if (_special_mouse_mode != WSM_SIZING) return true;
e.we.place.userdata = _thd.userdata;
// stop drag mode if the window has been closed
w = FindWindowById(_thd.window_class,_thd.window_number);
if (w == NULL) {
ResetObjectToPlace();
return false;
}
// while dragging execute the drag procedure of the corresponding window (mostly VpSelectTilesWithMethod() )
if (_left_button_down) {
e.event = WE_PLACE_DRAG;
e.we.place.pt = GetTileBelowCursor();
w->wndproc(w, &e);
return false;
}
// mouse button released..
// keep the selected tool, but reset it to the original mode.
_special_mouse_mode = WSM_NONE;
if (_thd.next_drawstyle == HT_RECT) {
_thd.place_mode = VHM_RECT;
} else if ((e.we.place.userdata & 0xF) == VPM_SIGNALDIRS) { // some might call this a hack... -- Dominik
_thd.place_mode = VHM_RECT;
} else if (_thd.next_drawstyle & HT_LINE) {
_thd.place_mode = VHM_RAIL;
} else if (_thd.next_drawstyle & HT_RAIL) {
_thd.place_mode = VHM_RAIL;
} else {
_thd.place_mode = VHM_POINT;
}
SetTileSelectSize(1, 1);
// and call the mouseup event.
e.event = WE_PLACE_MOUSEUP;
e.we.place.pt = _thd.selend;
e.we.place.tile = TileVirtXY(e.we.place.pt.x, e.we.place.pt.y);
e.we.place.starttile = TileVirtXY(_thd.selstart.x, _thd.selstart.y);
w->wndproc(w, &e);
return false;
}
void SetObjectToPlaceWnd(CursorID icon, byte mode, Window *w)
{
SetObjectToPlace(icon, mode, w->window_class, w->window_number);
}
#include "table/animcursors.h"
void SetObjectToPlace(CursorID icon, byte mode, WindowClass window_class, WindowNumber window_num)
{
Window *w;
// undo clicking on button
if (_thd.place_mode != 0) {
_thd.place_mode = 0;
w = FindWindowById(_thd.window_class, _thd.window_number);
if (w != NULL) CallWindowEventNP(w, WE_ABORT_PLACE_OBJ);
}
SetTileSelectSize(1, 1);
_thd.make_square_red = false;
if (mode == VHM_DRAG) { // mode 4 is for dragdropping trains in the depot window
mode = 0;
_special_mouse_mode = WSM_DRAGDROP;
} else {
_special_mouse_mode = WSM_NONE;
}
_thd.place_mode = mode;
_thd.window_class = window_class;
_thd.window_number = window_num;
if (mode == VHM_SPECIAL) // special tools, like tunnels or docks start with presizing mode
VpStartPreSizing();
if ( (int)icon < 0)
SetAnimatedMouseCursor(_animcursors[~icon]);
else
SetMouseCursor(icon);
}
void ResetObjectToPlace(void)
{
SetObjectToPlace(SPR_CURSOR_MOUSE, VHM_NONE, 0, 0);
}