1 files changed, 5 insertions, 2 deletions
diff --git a/engine/interfaces/Vec2.ts b/engine/interfaces/Vec2.ts
index b2bae37..04be4be 100644
--- a/engine/interfaces/Vec2.ts
+++ b/engine/interfaces/Vec2.ts
@@ -9,8 +9,11 @@ export interface Dimension2D {
 }
 
 export interface Velocity2D {
-  dx: number;
-  dy: number;
+  dCartesian: {
+    dx: number;
+    dy: number;
+  };
+  dTheta: number;
 }
 
 export interface Force2D {