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One-way road zoning mode

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This commit is contained in:
Jonathan G Rennison
2020-10-26 03:45:35 +00:00
parent 750417af10
commit 38a153017f
5 changed files with 39 additions and 0 deletions
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25
src/zoning_cmd.cpp
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@@ -273,6 +273,30 @@ inline SpriteID TileZoneCheckRoadGridEvaluation(TileIndex tile, uint grid_size)
}
}
/**
* Detect whether a tile is a one way road
*
* @param TileIndex tile
* @param Owner owner
* @return red if a restricted signal, nothing otherwise
*/
inline SpriteID TileZoneCheckOneWayRoadEvaluation(TileIndex tile)
{
extern uint8 GetOneWayRoadTileType(TileIndex tile);
uint8 type = GetOneWayRoadTileType(tile);
switch (type) {
default:
return ZONING_INVALID_SPRITE_ID;
case 1:
return SPR_ZONING_INNER_HIGHLIGHT_LIGHT_BLUE;
case 2:
return SPR_ZONING_INNER_HIGHLIGHT_ORANGE;
case 3:
return SPR_ZONING_INNER_HIGHLIGHT_GREEN;
}
}
/**
* General evaluation function; calls all the other functions depending on
* evaluation mode.
@@ -297,6 +321,7 @@ SpriteID TileZoningSpriteEvaluation(TileIndex tile, Owner owner, ZoningEvaluatio
case ZEM_TRACERESTRICT: return TileZoneCheckTraceRestrictEvaluation(tile, owner);
case ZEM_2x2_GRID: return TileZoneCheckRoadGridEvaluation(tile, 3);
case ZEM_3x3_GRID: return TileZoneCheckRoadGridEvaluation(tile, 4);
case ZEM_ONE_WAY_ROAD: return TileZoneCheckOneWayRoadEvaluation(tile);
default: return ZONING_INVALID_SPRITE_ID;
}
}