1 files changed, 24 insertions, 0 deletions

diff --git a/src/Blocks/ClearMetaOnDrop.h b/src/Blocks/ClearMetaOnDrop.h
new file mode 100644
index 000000000..f2afbc6ea
--- /dev/null
+++ b/src/Blocks/ClearMetaOnDrop.h
@@ -0,0 +1,24 @@
+
+#pragma once
+
+// mixin for use to clear meta values when the block is converted to a pickup
+
+// Usage: inherit from this class, passing the parent class as the parameter Base
+// For example to use in class Foo which should inherit Bar use
+// class Foo : public cClearMetaOnDrop<Bar>;
+
+template<class Base>
+class cClearMetaOnDrop : public Base
+{
+public:
+
+	cClearMetaOnDrop(BLOCKTYPE a_BlockType) :
+		Base(a_BlockType)
+	{}
+	
+	virtual ~cClearMetaOnDrop() {}
+	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
+	{
+		a_Pickups.push_back(cItem(this->m_BlockType));
+	}
+};