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Fix #10239: Use elevated snow height for roads on flat foundations (#12776)

pull/12789/head
Tyler Trahan 2024-06-15 17:10:39 -04:00 committed by GitHub
parent d7137651f2
commit 4cbaac6dac
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GPG Key ID: B5690EEEBB952194
1 changed files with 5 additions and 2 deletions
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7
src/road_cmd.cpp
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@ -1964,12 +1964,15 @@ static_assert(lengthof(_town_road_types_2) == HZB_END);
static void TileLoop_Road(TileIndex tile) static void TileLoop_Road(TileIndex tile)
{ {
switch (_settings_game.game_creation.landscape) { switch (_settings_game.game_creation.landscape) {
case LT_ARCTIC: case LT_ARCTIC: {
if (IsOnSnow(tile) != (GetTileZ(tile) > GetSnowLine())) { /* Roads on flat foundations use the snow level of the height they are elevated to. All others use the snow level of their minimum height. */
int tile_z = (std::get<Slope>(GetFoundationSlope(tile)) == SLOPE_FLAT) ? GetTileMaxZ(tile) : GetTileZ(tile);
if (IsOnSnow(tile) != (tile_z > GetSnowLine())) {
ToggleSnow(tile); ToggleSnow(tile);
MarkTileDirtyByTile(tile); MarkTileDirtyByTile(tile);
} }
break; break;
}
case LT_TROPIC: case LT_TROPIC:
if (GetTropicZone(tile) == TROPICZONE_DESERT && !IsOnDesert(tile)) { if (GetTropicZone(tile) == TROPICZONE_DESERT && !IsOnDesert(tile)) {