init

assets/Scripts/Scenes/MainGame/Player.ts

@@ -19,19 +19,26 @@ export class Player extends Snake {
     @property(FastBtn)
     fastBtn: FastBtn = null;
 
+    get length(): number {
+        return super.length;
+    }
+
+    set length(value: number) {
+        super.length = value;
+        this.updateLength(value);
+    }
+
     onLoad() {
         super.onLoad();
         input.on(Input.EventType.KEY_DOWN, this.onKeyDown, this);
         input.on(Input.EventType.KEY_UP, this.onKeyUp, this);
         this.fastBtn.node.on("fast", this.onFast, this);
-        this.node.on("updateLength", this.updateLength, this);
     }
 
     onDestroy() {
         input.off(Input.EventType.KEY_DOWN, this.onKeyDown, this);
         input.off(Input.EventType.KEY_UP, this.onKeyUp, this);
         this.fastBtn.node.off("fast", this.onFast, this);
-        this.node.off("updateLength", this.updateLength, this);
     }
 
     onFast(isFast: boolean) {

assets/Scripts/Scenes/MainGame/Snake.ts

@@ -64,6 +64,7 @@ export class Snake extends Component {
     get length() {
         return this._length;
     }
+
     set length(value: number) {
         this._length = value;
         this.node.emit("updateLength", value);
@@ -88,7 +89,6 @@ export class Snake extends Component {
         this.energy = 0;
         this.bodyArr = [];
         this.scale = scale;
-        // this.speed = this.speed * scale;
         this.tag = Snake.tag++;
 
         // 设置头部
@@ -101,7 +101,6 @@ export class Snake extends Component {
         const bw = this.imgBody1.originalSize.width;
         this.head.getComponent(UITransform).anchorX = (bw / 2) / hw;
 
-
         // 创建尾巴节点
         const tile = bodyPool.get() || instantiate(this.bodyPrefab);
         tile.angle = angle;
@@ -122,6 +121,8 @@ export class Snake extends Component {
         this.node.addChild(tile);
         this.bodyArr.push(tile);
 
+        this.length = 2;
+
         // 创建身体节点
         this.addEnergy(initEnergy);
 
@@ -204,6 +205,9 @@ export class Snake extends Component {
 
     // 蛇身体生长
     private grow() {
+
+        this.length += 1;
+
         let len = this.bodyArr.length;
         if (this.imgTail) len -= 1;