diff --git a/src/body.rs b/src/body.rs
new file mode 100644
index 00000000..ebc356db
--- /dev/null
+++ b/src/body.rs
@@ -0,0 +1,5 @@
+pub struct Body {
+	position: glam::I64Vec3,//2^32 = 1 u
+	velocity: glam::I64Vec3,//2^32 = 1 u/s
+	time: i64,//nanoseconds x xxxxD!
+}
\ No newline at end of file
diff --git a/src/event.rs b/src/event.rs
new file mode 100644
index 00000000..16f9b2e5
--- /dev/null
+++ b/src/event.rs
@@ -0,0 +1,8 @@
+enum EventEnum {
+	//Body::CollisionStart
+	//Body::CollisionEnd
+}
+
+pub trait EventTrait {
+	fn next_event() -> EventEnum;
+}
\ No newline at end of file