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-rw-r--r--clear_cmd.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/clear_cmd.c b/clear_cmd.c
index 1f46a071d..6d1016daa 100644
--- a/clear_cmd.c
+++ b/clear_cmd.c
@@ -534,9 +534,12 @@ static void DrawTile_Clear(TileInfo *ti)
DrawClearLandFence(ti);
}
-static uint GetSlopeZ_Clear(const TileInfo* ti)
+static uint GetSlopeZ_Clear(TileIndex tile, uint x, uint y)
{
- return GetPartialZ(ti->x & 0xF, ti->y & 0xF, ti->tileh) + ti->z;
+ uint z;
+ uint tileh = GetTileSlope(tile, &z);
+
+ return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
}
static Slope GetSlopeTileh_Clear(TileIndex tile, Slope tileh)