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-rw-r--r--tree_cmd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tree_cmd.c b/tree_cmd.c
index 174bfd8d6..52a834df0 100644
--- a/tree_cmd.c
+++ b/tree_cmd.c
@@ -493,6 +493,8 @@ static void TileLoop_Trees(TileIndex tile)
/* fall through */
case 2: { /* add a neighbouring tree */
+ byte m3 = _m[tile].m3;
+
tile += ToTileIndexDiff(_tileloop_trees_dir[Random() & 7]);
if (!IsTileType(tile, MP_CLEAR)) return;
@@ -508,6 +510,7 @@ static void TileLoop_Trees(TileIndex tile)
default: return;
}
+ _m[tile].m3 = m3;
_m[tile].m4 = 0;
SetTileType(tile, MP_TREES);