@@ -0,0 +1,159 @@
+package org.sms.tetris3d.interfaces;%0A%0A/**%0A * Created by hsh on 2016. 11. 7..%0A */%0A%0Apublic interface OnRemoveLayer %7B%0A     void onRemove(final long rem_count);%0A%7D%0A

add interface