Merge pull request #74 from Cloud9c/master

Add removeShape method to Body

src/objects/Body.ts

@@ -399,6 +399,34 @@ export class Body extends EventTarget {
     return this
   }
 
+  /**
+   * Remove a shape from the body.
+   * @method removeShape
+   * @param {Shape} shape
+   * @return {Body} The body object, for chainability.
+   */
+  removeShape(shape: Shape): Body {
+
+    const index = this.shapes.indexOf(shape)
+
+    if (index === -1) {
+      console.warn('Shape does not belong to the body');
+      return this;
+    }
+
+    this.shapes.splice(index, 1)
+    this.shapeOffsets.splice(index, 1)
+    this.shapeOrientations.splice(index, 1)
+    this.updateMassProperties()
+    this.updateBoundingRadius()
+
+    this.aabbNeedsUpdate = true
+
+    shape.body = null
+
+    return this
+  }
+
   /**
    * Update the bounding radius of the body. Should be done if any of the shapes are changed.
    * @method updateBoundingRadius