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@ -507,8 +507,42 @@ static bool IsWateredTile(TileIndex tile, Direction from)
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}
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}
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static void DrawWaterEdges(SpriteID base, TileIndex tile)
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/**
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* Draw a water sprite, potentially with a NewGRF-modified sprite offset.
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* @param base Sprite base.
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* @param offset Sprite offset.
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* @param feature The type of sprite that is drawn.
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* @param tile Tile index to draw.
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*/
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static void DrawWaterSprite(SpriteID base, uint offset, CanalFeature feature, TileIndex tile)
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{
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if (base != SPR_FLAT_WATER_TILE) {
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/* Only call offset callback if the sprite is NewGRF-provided. */
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offset = GetCanalSpriteOffset(feature, tile, offset);
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}
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DrawGroundSprite(base + offset, PAL_NONE);
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}
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/**
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* Draw canal or river edges.
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* @param canal True if canal edges should be drawn, false for river edges.
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* @param offset Sprite offset.
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* @param tile Tile to draw.
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*/
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static void DrawWaterEdges(bool canal, uint offset, TileIndex tile)
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{
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CanalFeature feature;
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SpriteID base = 0;
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if (canal) {
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feature = CF_DIKES;
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base = GetCanalSprite(CF_DIKES, tile);
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if (base == 0) base = SPR_CANAL_DIKES_BASE;
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} else {
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feature = CF_RIVER_EDGE;
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base = GetCanalSprite(CF_RIVER_EDGE, tile);
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if (base == 0) return; // Don't draw if no sprites provided.
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}
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uint wa;
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/* determine the edges around with water. */
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@ -517,33 +551,33 @@ static void DrawWaterEdges(SpriteID base, TileIndex tile)
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wa += IsWateredTile(TILE_ADDXY(tile, 1, 0), DIR_NE) << 2;
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wa += IsWateredTile(TILE_ADDXY(tile, 0, -1), DIR_SE) << 3;
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if (!(wa & 1)) DrawGroundSprite(base, PAL_NONE);
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if (!(wa & 2)) DrawGroundSprite(base + 1, PAL_NONE);
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if (!(wa & 4)) DrawGroundSprite(base + 2, PAL_NONE);
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if (!(wa & 8)) DrawGroundSprite(base + 3, PAL_NONE);
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if (!(wa & 1)) DrawWaterSprite(base, offset, feature, tile);
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if (!(wa & 2)) DrawWaterSprite(base, offset + 1, feature, tile);
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if (!(wa & 4)) DrawWaterSprite(base, offset + 2, feature, tile);
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if (!(wa & 8)) DrawWaterSprite(base, offset + 3, feature, tile);
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/* right corner */
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switch (wa & 0x03) {
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case 0: DrawGroundSprite(base + 4, PAL_NONE); break;
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case 3: if (!IsWateredTile(TILE_ADDXY(tile, -1, 1), DIR_W)) DrawGroundSprite(base + 8, PAL_NONE); break;
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case 0: DrawWaterSprite(base, offset + 4, feature, tile); break;
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case 3: if (!IsWateredTile(TILE_ADDXY(tile, -1, 1), DIR_W)) DrawWaterSprite(base, offset + 8, feature, tile); break;
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}
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/* bottom corner */
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switch (wa & 0x06) {
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case 0: DrawGroundSprite(base + 5, PAL_NONE); break;
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case 6: if (!IsWateredTile(TILE_ADDXY(tile, 1, 1), DIR_N)) DrawGroundSprite(base + 9, PAL_NONE); break;
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case 0: DrawWaterSprite(base, offset + 5, feature, tile); break;
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case 6: if (!IsWateredTile(TILE_ADDXY(tile, 1, 1), DIR_N)) DrawWaterSprite(base, offset + 9, feature, tile); break;
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}
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/* left corner */
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switch (wa & 0x0C) {
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case 0: DrawGroundSprite(base + 6, PAL_NONE); break;
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case 12: if (!IsWateredTile(TILE_ADDXY(tile, 1, -1), DIR_E)) DrawGroundSprite(base + 10, PAL_NONE); break;
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case 0: DrawWaterSprite(base, offset + 6, feature, tile); break;
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case 12: if (!IsWateredTile(TILE_ADDXY(tile, 1, -1), DIR_E)) DrawWaterSprite(base, offset + 10, feature, tile); break;
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}
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/* upper corner */
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switch (wa & 0x09) {
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case 0: DrawGroundSprite(base + 7, PAL_NONE); break;
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case 9: if (!IsWateredTile(TILE_ADDXY(tile, -1, -1), DIR_S)) DrawGroundSprite(base + 11, PAL_NONE); break;
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case 0: DrawWaterSprite(base, offset + 7, feature, tile); break;
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case 9: if (!IsWateredTile(TILE_ADDXY(tile, -1, -1), DIR_S)) DrawWaterSprite(base, offset + 11, feature, tile); break;
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}
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}
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@ -562,13 +596,9 @@ static void DrawCanalWater(TileIndex tile)
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image = GetCanalSprite(CF_WATERSLOPE, tile);
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if (image == 0) image = SPR_FLAT_WATER_TILE;
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}
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DrawGroundSprite(image, PAL_NONE);
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/* Test for custom graphics, else use the default */
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SpriteID dikes_base = GetCanalSprite(CF_DIKES, tile);
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if (dikes_base == 0) dikes_base = SPR_CANAL_DIKES_BASE;
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DrawWaterSprite(image, 0, CF_WATERSLOPE, tile);
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DrawWaterEdges(dikes_base, tile);
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DrawWaterEdges(true, 0, tile);
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}
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struct LocksDrawTileStruct {
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@ -588,13 +618,15 @@ struct LocksDrawTileStruct {
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* @param offset Additional sprite offset.
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* @param palette Palette to use.
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*/
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static void DrawWaterTileStruct(const TileInfo *ti, const WaterDrawTileStruct *wdts, SpriteID base, uint offset, PaletteID palette)
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static void DrawWaterTileStruct(const TileInfo *ti, const WaterDrawTileStruct *wdts, SpriteID base, uint offset, PaletteID palette, CanalFeature feature)
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{
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/* Don't draw if buildings are invisible. */
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if (IsInvisibilitySet(TO_BUILDINGS)) return;
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for (; wdts->delta_x != 0x80; wdts++) {
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AddSortableSpriteToDraw(base + wdts->image + offset, palette,
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uint tile_offs = offset + wdts->image;
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if (feature < CF_END) tile_offs = GetCanalSpriteOffset(feature, ti->tile, tile_offs);
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AddSortableSpriteToDraw(base + tile_offs, palette,
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ti->x + wdts->delta_x, ti->y + wdts->delta_y,
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wdts->size_x, wdts->size_y,
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wdts->size_z, ti->z + wdts->delta_z,
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@ -636,7 +668,7 @@ static void DrawWaterLock(const TileInfo *ti)
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zoffs = ti->z > wdts[3].delta_y ? 24 : 0;
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}
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DrawWaterTileStruct(ti, wdts, base, zoffs, PAL_NONE);
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DrawWaterTileStruct(ti, wdts, base, zoffs, PAL_NONE, CF_LOCKS);
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}
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/** Draw a ship depot tile. */
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@ -644,13 +676,14 @@ static void DrawWaterDepot(const TileInfo *ti)
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{
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DrawWaterClassGround(ti);
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/* Skip first entry in _shipdepot_display_seq as this is the ground sprite. */
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DrawWaterTileStruct(ti, _shipdepot_display_seq[GetSection(ti->tile)] + 1, 0, 0, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)));
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DrawWaterTileStruct(ti, _shipdepot_display_seq[GetSection(ti->tile)] + 1, 0, 0, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)), CF_END);
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}
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static void DrawRiverWater(const TileInfo *ti)
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{
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SpriteID image = SPR_FLAT_WATER_TILE;
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SpriteID edges_base = GetCanalSprite(CF_RIVER_EDGE, ti->tile);
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uint offset = 0;
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uint edges_offset = 0;
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if (ti->tileh != SLOPE_FLAT || HasBit(_water_feature[CF_RIVER_SLOPE].flags, CFF_HAS_FLAT_SPRITE)) {
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image = GetCanalSprite(CF_RIVER_SLOPE, ti->tile);
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@ -664,24 +697,24 @@ static void DrawRiverWater(const TileInfo *ti)
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}
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} else {
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/* Flag bit 0 indicates that the first sprite is flat water. */
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uint offset = HasBit(_water_feature[CF_RIVER_SLOPE].flags, CFF_HAS_FLAT_SPRITE) ? 1 : 0;
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offset = HasBit(_water_feature[CF_RIVER_SLOPE].flags, CFF_HAS_FLAT_SPRITE) ? 1 : 0;
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switch (ti->tileh) {
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case SLOPE_SE: edges_base += 12; break;
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case SLOPE_NE: offset += 1; edges_base += 24; break;
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case SLOPE_SW: offset += 2; edges_base += 36; break;
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case SLOPE_NW: offset += 3; edges_base += 48; break;
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case SLOPE_SE: edges_offset += 12; break;
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case SLOPE_NE: offset += 1; edges_offset += 24; break;
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case SLOPE_SW: offset += 2; edges_offset += 36; break;
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case SLOPE_NW: offset += 3; edges_offset += 48; break;
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default: offset = 0; break;
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}
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image += offset;
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offset = GetCanalSpriteOffset(CF_RIVER_SLOPE, ti->tile, offset);
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}
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}
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DrawGroundSprite(image, PAL_NONE);
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DrawGroundSprite(image + offset, PAL_NONE);
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/* Draw river edges if available. */
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if (edges_base > 48) DrawWaterEdges(edges_base, ti->tile);
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DrawWaterEdges(false, edges_offset, ti->tile);
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}
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void DrawShoreTile(Slope tileh)
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