初始化bird

src/Bird.ts

-import Movable from "./Movable";
-
-export default class Bullet extends Movable {
-    constructor() {
-        super();
-        this.texture = FYGE.Texture.fromUrl('//yun.duiba.com.cn/aurora/assets/0bcb2c26a85addb1714b4c63f2a873aafe210749.png')
-    }
-}
\ No newline at end of file

src/addGame.ts

-import Bird from "./Bird";
-import MovableManager from "./MovableManager";
-import Vector2 from "./Vector2";
-
-export function addGame(stage: FYGE.Stage) {
-    const movableManager = new MovableManager(stage);//创建管理器
-
-    const bird = stage.addChild(new Bird());//有加速度
-    bird.position.set(300, 200);
-    bird.velocity = new Vector2(0, 0);
-    bird.acceleration=new Vector2(0, 1);
-    
-    movableManager.add(bird);
-
-    stage.addEventListener(FYGE.MouseEvent.CLICK,onclick);
-    function onclick() {
-        bird.velocity.y = -20;
-    }
-}
\ No newline at end of file

src/bird/Background.ts

+import Movable from "../lib/Movable";
+import MovableManager from "../lib/MovableManager";
+import Vector2 from "../lib/Vector2";
+class BackgroundItem extends Movable {
+  constructor() {
+    super();
+    this.texture = FYGE.Texture.fromUrl(
+      "//yun.duiba.com.cn/aurora/assets/bd7b3b10169265123e52d02acf8739db5ff59b3d.png"
+    );
+    this.velocity = new Vector2(1, 0);
+  }
+  getCanRemove() {
+    return false;
+  }
+}
+const width = 375;
+export default class Background {
+  constructor(stage: FYGE.Stage, movableManager: MovableManager) {
+    var bg = new BackgroundItem();
+    var bg2 = new BackgroundItem();
+
+    movableManager.add(bg);
+    movableManager.add(bg2);
+
+    stage.addChild(bg);
+    stage.addChild(bg2);
+
+    bg.y = 0;
+    bg2.x = width;
+
+    stage.addEventListener(FYGE.Event.ENTER_FRAME, () => {
+      console.log("bg.x", bg.x);
+      console.log("bg2.x", bg2.x);
+      if (bg.x > width) {
+        bg.x = bg2.x - width;
+      }
+      if (bg2.x > width) {
+        bg2.x = bg.x - width;
+      }
+    });
+  }
+}

src/bird/Bird.ts

+import Movable from "../lib/Movable";
+
+export default class Bullet extends Movable {
+  constructor() {
+    super();
+    this.texture = FYGE.Texture.fromUrl(
+      "//yun.duiba.com.cn/aurora/assets/0bcb2c26a85addb1714b4c63f2a873aafe210749.png"
+    );
+  }
+}

src/bird/addGame.ts

+import Bird from "./Bird";
+import MovableManager from "../lib/MovableManager";
+import Vector2 from "../lib/Vector2";
+import Background from "./Background";
+
+export function addGame(stage: FYGE.Stage) {
+  const movableManager = new MovableManager(stage); //创建管理器
+  const background = new Background(stage, movableManager);
+
+  const bird = stage.addChild(new Bird()); //有加速度
+  bird.position.set(300, 200);
+  bird.velocity = new Vector2(0, 0);
+  bird.acceleration = new Vector2(0, 1);
+
+  movableManager.add(bird);
+
+  stage.addEventListener(FYGE.MouseEvent.CLICK, onclick);
+  function onclick() {
+    bird.velocity.y = -20;
+  }
+}

src/main.ts

-import { addGame } from "./addGame";
-var canvas: any = document.getElementById("canvas")
-canvas.width = document.body.clientWidth * 1
-canvas.height = document.body.clientHeight * 1
+import { addGame } from "./bird/addGame";
+var canvas: any = document.getElementById("canvas");
+canvas.width = document.body.clientWidth * 1;
+canvas.height = document.body.clientHeight * 1;
 var stage = new FYGE.Stage(
   canvas,
   750,
@@ -11,21 +11,21 @@ var stage = new FYGE.Stage(
   FYGE.RENDERER_TYPE.CANVAS,
   false,
   false
-)
+);
 
 var mouseEvent = stage.onMouseEvent.bind(stage);
 canvas.addEventListener("touchstart", mouseEvent, false);
-canvas.addEventListener('touchmove', mouseEvent, false);
-canvas.addEventListener('touchend', mouseEvent, false);
+canvas.addEventListener("touchmove", mouseEvent, false);
+canvas.addEventListener("touchend", mouseEvent, false);
 
 stage.addEventListener(FYGE.Event.INIT_STAGE, onInitStage, this);
 
 function onInitStage() {
-   new addGame(stage)
+  new addGame(stage);
 }
 
 (function loop() {
-    FYGE.Tween.flush()
+  FYGE.Tween.flush();
   stage.flush();
   requestAnimationFrame(loop);
 })();