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-rw-r--r--src/landscape.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/landscape.cpp b/src/landscape.cpp
index 2677014f7..25b41d130 100644
--- a/src/landscape.cpp
+++ b/src/landscape.cpp
@@ -831,6 +831,8 @@ static void CreateDesertOrRainForest()
for (TileIndex tile = 0; tile != MapSize(); ++tile) {
if ((tile % update_freq) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
+ if (!IsValidTile(tile)) continue;
+
for (data = _make_desert_or_rainforest_data;
data != endof(_make_desert_or_rainforest_data); ++data) {
TileIndex t = AddTileIndexDiffCWrap(tile, *data);
@@ -849,6 +851,8 @@ static void CreateDesertOrRainForest()
for (TileIndex tile = 0; tile != MapSize(); ++tile) {
if ((tile % update_freq) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
+ if (!IsValidTile(tile)) continue;
+
for (data = _make_desert_or_rainforest_data;
data != endof(_make_desert_or_rainforest_data); ++data) {
TileIndex t = AddTileIndexDiffCWrap(tile, *data);