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-rw-r--r--src/tree_cmd.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/tree_cmd.cpp b/src/tree_cmd.cpp
index c30609e78..e3b036e66 100644
--- a/src/tree_cmd.cpp
+++ b/src/tree_cmd.cpp
@@ -13,6 +13,7 @@
#include "clear_map.h"
#include "landscape.h"
#include "tree_map.h"
+#include "layer_func.h"
#include "viewport_func.h"
#include "command_func.h"
#include "town.h"
@@ -70,7 +71,8 @@ static bool CanPlantTreesOnTile(TileIndex tile, bool allow_desert)
case MP_CLEAR:
return !IsBridgeAbove(tile) && !IsClearGround(tile, CLEAR_FIELDS) && GetRawClearGround(tile) != CLEAR_ROCKS &&
- (allow_desert || !IsClearGround(tile, CLEAR_DESERT));
+ (allow_desert || !IsClearGround(tile, CLEAR_DESERT))
+ && !IsUnderground(tile);
default: return false;
}
@@ -337,6 +339,10 @@ CommandCost CmdPlantTree(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32
const byte tree_to_plant = GB(p1, 0, 8); // We cannot use Extract as min and max are climate specific.
if (p2 >= MapSize()) return CMD_ERROR;
+
+ /* tree only top layer */
+ if (IsUnderground(p2)) return CMD_ERROR;
+
/* Check the tree type within the current climate */
if (tree_to_plant != TREE_INVALID && !IsInsideBS(tree_to_plant, _tree_base_by_landscape[_settings_game.game_creation.landscape], _tree_count_by_landscape[_settings_game.game_creation.landscape])) return CMD_ERROR;