cpp/openttd-patchpack/source Changeset - r26650:a3a9730bcdc8

Changeset - r26650:a3a9730bcdc8

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Loïc Guilloux - 21 months ago 2022-12-17 14:01:47
glx22@users.noreply.github.com

Fix #10208: allow to use specific underlay for road/tram tunnels (#10233)

4 files changed with 38 insertions and 15 deletions:

src/road.h

src/road_cmd.cpp

src/road_func.h

src/tunnelbridge_cmd.cpp

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src/road.h

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@@ @@ -58,7 +58,7 @@ enum RoadTypeSpriteGroup { @@
 	ROTSG_CURSORS,        ///< Optional: Cursor and toolbar icon images
 	ROTSG_OVERLAY,        ///< Optional: Images for overlaying track
 	ROTSG_GROUND,         ///< Required: Main group of ground images
-	ROTSG_reserved1,      ///<           Placeholder, if we need specific tunnel sprites.
+	ROTSG_TUNNEL,         ///< Optional: Ground images for tunnels
 	ROTSG_CATENARY_FRONT, ///< Optional: Catenary front
 	ROTSG_CATENARY_BACK,  ///< Optional: Catenary back
 	ROTSG_BRIDGE,         ///< Required: Bridge surface images

src/road_cmd.cpp

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@@ @@ -1489,21 +1489,24 @@ static void DrawRoadDetail(SpriteID img, @@
  * @param tram_rti Tram road type information
  * @param road_offset Road sprite offset (based on road bits)
  * @param tram_offset Tram sprite offset (based on road bits)
  * @param draw_underlay Whether to draw underlays
  */
 void DrawRoadOverlays(const TileInfo *ti, PaletteID pal, const RoadTypeInfo *road_rti, const RoadTypeInfo *tram_rti, uint road_offset, uint tram_offset)
+void DrawRoadOverlays(const TileInfo *ti, PaletteID pal, const RoadTypeInfo *road_rti, const RoadTypeInfo *tram_rti, uint road_offset, uint tram_offset, bool draw_underlay)
+{
 	/* Road underlay takes precedence over tram */
 	if (road_rti != nullptr) {
 		if (road_rti->UsesOverlay()) {
 			SpriteID ground = GetCustomRoadSprite(road_rti, ti->tile, ROTSG_GROUND);
 			DrawGroundSprite(ground + road_offset, pal);
+		}
 	} else {
 		if (tram_rti->UsesOverlay()) {
 			SpriteID ground = GetCustomRoadSprite(tram_rti, ti->tile, ROTSG_GROUND);
 			DrawGroundSprite(ground + tram_offset, pal);
 	if (draw_underlay) {
 		/* Road underlay takes precedence over tram */
 		if (road_rti != nullptr) {
 			if (road_rti->UsesOverlay()) {
 				SpriteID ground = GetCustomRoadSprite(road_rti, ti->tile, ROTSG_GROUND);
 				DrawGroundSprite(ground + road_offset, pal);
+			}
 		} else {
 			DrawGroundSprite(SPR_TRAMWAY_TRAM + tram_offset, pal);
 			if (tram_rti->UsesOverlay()) {
 				SpriteID ground = GetCustomRoadSprite(tram_rti, ti->tile, ROTSG_GROUND);
 				DrawGroundSprite(ground + tram_offset, pal);
 			} else {
 				DrawGroundSprite(SPR_TRAMWAY_TRAM + tram_offset, pal);
+			}
+		}
+	}

src/road_func.h

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@@ @@ -158,6 +158,6 @@ void MarkDirtyAdjacentLevelCrossingTiles @@
 void UpdateCompanyRoadInfrastructure(RoadType rt, Owner o, int count);
 struct TileInfo;
 void DrawRoadOverlays(const TileInfo *ti, PaletteID pal, const RoadTypeInfo *road_rti, const RoadTypeInfo *tram_rit, uint road_offset, uint tram_offset);
+void DrawRoadOverlays(const TileInfo *ti, PaletteID pal, const RoadTypeInfo *road_rti, const RoadTypeInfo *tram_rit, uint road_offset, uint tram_offset, bool draw_underlay = true);
 #endif /* ROAD_FUNC_H */

src/tunnelbridge_cmd.cpp

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@@ @@ -1307,8 +1307,28 @@ static void DrawTile_TunnelBridge(TileIn @@
 			const RoadTypeInfo *road_rti = road_rt == INVALID_ROADTYPE ? nullptr : GetRoadTypeInfo(road_rt);
 			const RoadTypeInfo *tram_rti = tram_rt == INVALID_ROADTYPE ? nullptr : GetRoadTypeInfo(tram_rt);
 			uint sprite_offset = DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? 1 : 0;
 			bool draw_underlay = true;
 			DrawRoadOverlays(ti, PAL_NONE, road_rti, tram_rti, sprite_offset, sprite_offset);
 			/* Road underlay takes precedence over tram */
 			if (road_rti != nullptr) {
 				if (road_rti->UsesOverlay()) {
 					SpriteID ground = GetCustomRoadSprite(road_rti, ti->tile, ROTSG_TUNNEL);
 					if (ground != 0) {
 						DrawGroundSprite(ground + tunnelbridge_direction, PAL_NONE);
 						draw_underlay = false;
+					}
+				}
 			} else {
 				if (tram_rti->UsesOverlay()) {
 					SpriteID ground = GetCustomRoadSprite(tram_rti, ti->tile, ROTSG_TUNNEL);
 					if (ground != 0) {
 						DrawGroundSprite(ground + tunnelbridge_direction, PAL_NONE);
 						draw_underlay = false;
+					}
+				}
+			}
 			DrawRoadOverlays(ti, PAL_NONE, road_rti, tram_rti, sprite_offset, sprite_offset, draw_underlay);
 			/* Road catenary takes precedence over tram */
 			SpriteID catenary_sprite_base = 0;

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