new structure, spawner, rebind

assets/Scripts/Game/Collision/WeaponCollisionSystem.ts

@@ -0,0 +1,15 @@
+import { Collider2D, Contact2DType } from "cc";
+import { Enemy } from "../Enemy/Enemy";
+import { Weapon } from "../Weapon";
+
+export class WeaponCollisionSystem {
+    private weapon: Weapon;
+    public constructor(weapon: Weapon) {
+        this.weapon = weapon;
+        weapon.Collider.on(Contact2DType.BEGIN_CONTACT, this.onWeaponContactBegin, this);
+    }
+
+    private onWeaponContactBegin(_selfCollider: Collider2D, otherCollider: Collider2D): void {
+        otherCollider.getComponent(Enemy).dealDamage(this.weapon.Damage);
+    }
+}