[add] Engine

assets/Script/Engine/Utils/Act/Shake.ts

@@ -0,0 +1,55 @@
+const { ccclass } = cc._decorator;
+
+@ccclass
+export default class Shake extends cc.ActionInterval {
+	private _init: boolean = false;
+	private _initial_x: number = 0;
+	private _initial_y: number = 0;
+	private _strength_x: number = 0;
+	private _strength_y: number = 0;
+
+	/**
+	 *  建立抖動動畫
+	 * @param {number} duration     動畫持續時長
+	 * @param {number} strength_x   抖動幅度： x方向
+	 * @param {number} strength_y   抖動幅度： y方向
+	 * @returns {Shake}
+	 */
+	public static create(duration: number, strength_x: number, strength_y: number): Shake {
+		let act: Shake = new Shake();
+		act.initWithDuration(duration, strength_x, strength_y);
+		return act;
+	}
+
+	public initWithDuration(duration: number, strength_x: number, strength_y: number): boolean {
+		cc.ActionInterval.prototype['initWithDuration'].apply(this, arguments);
+		this._strength_x = strength_x;
+		this._strength_y = strength_y;
+		return true;
+	}
+
+	public fgRangeRand(min: number, max: number): number {
+		let rnd: number = Math.random();
+		return rnd * (max - min) + min;
+	}
+
+	public update(time: number): void {
+		let randx = this.fgRangeRand(-this._strength_x, this._strength_x);
+		let randy = this.fgRangeRand(-this._strength_y, this._strength_y);
+		this.getTarget()?.setPosition(randx + this._initial_x, randy + this._initial_y);
+	}
+
+	public startWithTarget(target: cc.Node): void {
+		cc.ActionInterval.prototype['startWithTarget'].apply(this, arguments);
+		if (!this._init) {
+			this._init = true;
+			this._initial_x = target.x;
+			this._initial_y = target.y;
+		}
+	}
+
+	public stop(): void {
+		this.getTarget()?.setPosition(new cc.Vec2(this._initial_x, this._initial_y));
+		cc.ActionInterval.prototype['stop'].apply(this);
+	}
+}

assets/Script/Engine/Utils/Act/Shake.ts.meta

@@ -0,0 +1,10 @@
+{
+  "ver": "1.1.0",
+  "uuid": "c5872cc0-91a4-49cb-a055-e037accd801d",
+  "importer": "typescript",
+  "isPlugin": false,
+  "loadPluginInWeb": true,
+  "loadPluginInNative": true,
+  "loadPluginInEditor": false,
+  "subMetas": {}
+}