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(svn r18702) -Fix [FS#3467]: Enable DrawGroundSpriteAt() to deal with foundations as DrawGroundSprite() does, and use this for drawing one-way-road-signs and clear-land-fences.

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frosch
2010-01-03 20:55:00 +00:00
parent 8a50a4112c
commit a9d4147eb2
6 changed files with 38 additions and 26 deletions
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45
src/viewport.cpp
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@@ -467,7 +467,7 @@ void HandleZoomMessage(Window *w, const ViewPort *vp, byte widget_zoom_in, byte
}
/**
* Draws a ground sprite at a specific world-coordinate.
* Shedules a tile sprite for drawing.
*
* @param image the image to draw.
* @param pal the provided palette.
@@ -477,9 +477,8 @@ void HandleZoomMessage(Window *w, const ViewPort *vp, byte widget_zoom_in, byte
* @param sub Only draw a part of the sprite.
* @param extra_offs_x Pixel X offset for the sprite position.
* @param extra_offs_y Pixel Y offset for the sprite position.
*
*/
void DrawGroundSpriteAt(SpriteID image, SpriteID pal, int32 x, int32 y, byte z, const SubSprite *sub, int extra_offs_x, int extra_offs_y)
static void AddTileSpriteToDraw(SpriteID image, SpriteID pal, int32 x, int32 y, int z, const SubSprite *sub = NULL, int extra_offs_x = 0, int extra_offs_y = 0)
{
assert((image & SPRITE_MASK) < MAX_SPRITES);
@@ -520,6 +519,32 @@ static void AddChildSpriteToFoundation(SpriteID image, SpriteID pal, const SubSp
_vd.last_child = old_child;
}
/**
* Draws a ground sprite at a specific world-coordinate relative to the current tile.
* If the current tile is drawn on top of a foundation the sprite is added as child sprite to the "foundation"-ParentSprite.
*
* @param image the image to draw.
* @param pal the provided palette.
* @param x position x (world coordinates) of the sprite relative to current tile.
* @param y position y (world coordinates) of the sprite relative to current tile.
* @param z position z (world coordinates) of the sprite relative to current tile.
* @param sub Only draw a part of the sprite.
* @param extra_offs_x Pixel X offset for the sprite position.
* @param extra_offs_y Pixel Y offset for the sprite position.
*/
void DrawGroundSpriteAt(SpriteID image, SpriteID pal, int32 x, int32 y, int z, const SubSprite *sub, int extra_offs_x, int extra_offs_y)
{
/* Switch to first foundation part, if no foundation was drawn */
if (_vd.foundation_part == FOUNDATION_PART_NONE) _vd.foundation_part = FOUNDATION_PART_NORMAL;
if (_vd.foundation[_vd.foundation_part] != -1) {
Point pt = RemapCoords(x, y, z);
AddChildSpriteToFoundation(image, pal, sub, _vd.foundation_part, pt.x + extra_offs_x, pt.y + extra_offs_y);
} else {
AddTileSpriteToDraw(image, pal, _cur_ti->x + x, _cur_ti->y + y, _cur_ti->z + z, sub, extra_offs_x, extra_offs_y);
}
}
/**
* Draws a ground sprite for the current tile.
* If the current tile is drawn on top of a foundation the sprite is added as child sprite to the "foundation"-ParentSprite.
@@ -532,17 +557,9 @@ static void AddChildSpriteToFoundation(SpriteID image, SpriteID pal, const SubSp
*/
void DrawGroundSprite(SpriteID image, SpriteID pal, const SubSprite *sub, int extra_offs_x, int extra_offs_y)
{
/* Switch to first foundation part, if no foundation was drawn */
if (_vd.foundation_part == FOUNDATION_PART_NONE) _vd.foundation_part = FOUNDATION_PART_NORMAL;
if (_vd.foundation[_vd.foundation_part] != -1) {
AddChildSpriteToFoundation(image, pal, sub, _vd.foundation_part, extra_offs_x, extra_offs_y);
} else {
DrawGroundSpriteAt(image, pal, _cur_ti->x, _cur_ti->y, _cur_ti->z, sub, extra_offs_x, extra_offs_y);
}
DrawGroundSpriteAt(image, pal, 0, 0, 0, sub, extra_offs_x, extra_offs_y);
}
/**
* Called when a foundation has been drawn for the current tile.
* Successive ground sprites for the current tile will be drawn as child sprites of the "foundation"-ParentSprite, not as TileSprites.
@@ -805,7 +822,7 @@ static void DrawSelectionSprite(SpriteID image, SpriteID pal, const TileInfo *ti
/* FIXME: This is not totally valid for some autorail highlights, that extent over the edges of the tile. */
if (_vd.foundation[foundation_part] == -1) {
/* draw on real ground */
DrawGroundSpriteAt(image, pal, ti->x, ti->y, ti->z + z_offset);
AddTileSpriteToDraw(image, pal, ti->x, ti->y, ti->z + z_offset);
} else {
/* draw on top of foundation */
AddChildSpriteToFoundation(image, pal, NULL, foundation_part, 0, -z_offset);
@@ -1024,7 +1041,7 @@ static void ViewportAddLandscape()
if (x_cur == ((int)MapMaxX() - 1) * TILE_SIZE || y_cur == ((int)MapMaxY() - 1) * TILE_SIZE) {
uint maxh = max<uint>(TileHeight(tile), 1);
for (uint h = 0; h < maxh; h++) {
DrawGroundSpriteAt(SPR_SHADOW_CELL, PAL_NONE, ti.x, ti.y, h * TILE_HEIGHT);
AddTileSpriteToDraw(SPR_SHADOW_CELL, PAL_NONE, ti.x, ti.y, h * TILE_HEIGHT);
}
}