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-rw-r--r--crawl-ref/source/terrain.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/crawl-ref/source/terrain.h b/crawl-ref/source/terrain.h
index 4e3df832c8..c3f855a346 100644
--- a/crawl-ref/source/terrain.h
+++ b/crawl-ref/source/terrain.h
@@ -61,6 +61,9 @@ void dungeon_terrain_changed(const coord_def &pos,
bool preserve_features = false,
bool preserve_items = false);
+bool swap_features(const coord_def &pos1, const coord_def &pos2,
+ bool swap_everything = false);
+
bool is_critical_feature(dungeon_feature_type feat);
void init_feat_desc_cache();