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-rw-r--r--src/tree_cmd.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/tree_cmd.cpp b/src/tree_cmd.cpp
index 1a3fe87f5..78c771b0b 100644
--- a/src/tree_cmd.cpp
+++ b/src/tree_cmd.cpp
@@ -52,6 +52,8 @@ enum ExtraTreePlacement {
ETP_ALL, ///< Place trees on all tiles
};
+/** Determines when to consider building more trees. */
+byte _trees_tick_ctr;
/**
* Tests if a tile can be converted to MP_TREES