diff --git a/src/main/java/org/auioc/mcmod/arnicalib/api/game/phys/Shape.java b/src/main/java/org/auioc/mcmod/arnicalib/api/game/phys/Shape.java
new file mode 100644
index 00000000..2784046e
--- /dev/null
+++ b/src/main/java/org/auioc/mcmod/arnicalib/api/game/phys/Shape.java
@@ -0,0 +1,7 @@
+package org.auioc.mcmod.arnicalib.api.game.phys;
+
+public enum Shape {
+    LINE, //
+    POLYGON, CIRCLE, //
+    CUBOID
+}