新增事件发送接收器

source/src/Physics/Verlet/Particle.ts

@@ -1,19 +0,0 @@
-class Particle {
-    public position: Vector2 = new Vector2(0, 0);
-    public lastPosition: Vector2 = new Vector2(0, 0);
-    public isPinned: boolean;
-    public pinnedPosition;
-    public acceleration: Vector2 = new Vector2(0, 0);
-    public mass: number = 1;
-    public radius: number = 0;
-    public collidesWithColliders = true;
-
-    constructor(position: Vector2){
-        this.position = position;
-        this.lastPosition = position;
-    }
-
-    public applyForce(force: Vector2){
-        this.acceleration = Vector2.add(this.acceleration, new Vector2(force.x / this.mass, force.y / this.mass));
-    }
-}