1 files changed, 29 insertions, 0 deletions
diff --git a/src/chunk.inl b/src/chunk.inl
new file mode 100644
index 00000000..5abc1e12
--- /dev/null
+++ b/src/chunk.inl
@@ -0,0 +1,29 @@
+#pragma once
+#include "chunk.hpp"
+
+namespace floormat {
+
+template<typename F> void chunk::with_scenery_bbox_update(std::size_t i, F&& fun)
+{
+    static_assert(std::is_invocable_v<F>);
+    static_assert(std::is_convertible_v<decltype(fun()), bool> || std::is_same_v<void, decltype(fun())>);
+    if (is_passability_modified())
+        fun();
+    else
+    {
+        bbox x0, x;
+        bool b0 = _bbox_for_scenery(i, x0);
+        if constexpr(std::is_same_v<void, std::decay_t<decltype(fun())>>)
+        {
+            fun();
+            _replace_bbox(x0, x, b0, _bbox_for_scenery(i, x));
+        }
+        else
+        {
+            if (fun())
+                _replace_bbox(x0, x, b0, _bbox_for_scenery(i, x));
+        }
+    }
+}
+
+} // namespace floormat