@@ -589,6 +589,16 @@ static void AnimateTile_Water(TileIndex
}
/**
* Marks tile dirty if it is a canal tile.
* Called to avoid glitches when flooding tiles next to canal tile.
*
* @param tile tile to check
*/
static inline void MarkTileDirtyIfCanal(TileIndex tile) {
if (IsTileType(tile, MP_WATER) && IsCanal(tile)) MarkTileDirtyByTile(tile);
* Floods neighboured floodable tiles
* @param tile The water source tile that causes the flooding.
@@ -650,6 +660,11 @@ static void TileLoopWaterHelper(TileInde
if (CmdSucceeded(DoCommand(target, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR))) {
MakeWater(target);
MarkTileDirtyByTile(target);
/* Mark surrounding canal tiles dirty too to avoid glitches */
MarkTileDirtyIfCanal(target + TileDiffXY(0, 1));
MarkTileDirtyIfCanal(target + TileDiffXY(1, 0));
MarkTileDirtyIfCanal(target + TileDiffXY(0, -1));
MarkTileDirtyIfCanal(target + TileDiffXY(-1, 0));