105 lines
4.4 KiB
Markdown
105 lines
4.4 KiB
Markdown
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KeyEvent3D
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----------
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* 演示准备
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----------
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创建一个演示场景：
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class Main {
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protected _egret3DCanvas: egret3d.Egret3DCanvas;
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protected view1: egret3d.View3D;
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protected cube: egret3d.Mesh;
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public constructor() {
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///创建3DCanvas
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this._egret3DCanvas = new egret3d.Egret3DCanvas();
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this._egret3DCanvas.x = 0;
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this._egret3DCanvas.y = 0;
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this._egret3DCanvas.width = window.innerWidth;
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this._egret3DCanvas.height = window.innerHeight;
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this._egret3DCanvas.start();
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///创建View3D
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this.view1 = new egret3d.View3D(0, 0, window.innerWidth, window.innerHeight);
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this.view1.camera3D.lookAt(new egret3d.Vector3D(0, 1000, -1000), new egret3d.Vector3D(0, 0, 0));
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this.view1.backColor = 0xff888888;
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this._egret3DCanvas.addView3D(this.view1);
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///启动3DCanvas
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this._egret3DCanvas.start();
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///创建立方体，放置于场景内(0,0,0)位置
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var mat_cube: egret3d.TextureMaterial = new egret3d.TextureMaterial();
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var geometery_Cube: egret3d.CubeGeometry = new egret3d.CubeGeometry();
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this.cube = new egret3d.Mesh(geometery_Cube, mat_cube);
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this.view1.addChild3D(this.cube);
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///创建面片，放置于场景内(0,0,0)位置
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var mat_Plane: egret3d.TextureMaterial = new egret3d.TextureMaterial();
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var geometery_Plane: egret3d.PlaneGeometry = new egret3d.PlaneGeometry();
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var plane = new egret3d.Mesh(geometery_Plane, mat_Plane);
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this.view1.addChild3D(plane);
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}
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}
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1) 在egret3d.KeyCode内引擎定义了所有Key的枚举类型，详细可以参考引擎内的枚举值。
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2) 按键事件分别为：KEY_DOWN 按键每次按下时响应和KEY_UP 按键每次回弹时响应。
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3) 示例代码：
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class Main {
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protected _egret3DCanvas: egret3d.Egret3DCanvas;
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protected view1: egret3d.View3D;
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protected cube: egret3d.Mesh;
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public constructor() {
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///创建3DCanvas
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this._egret3DCanvas = new egret3d.Egret3DCanvas();
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this._egret3DCanvas.x = 0;
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this._egret3DCanvas.y = 0;
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this._egret3DCanvas.width = window.innerWidth;
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this._egret3DCanvas.height = window.innerHeight;
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this._egret3DCanvas.start();
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///创建View3D
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this.view1 = new egret3d.View3D(0, 0, window.innerWidth, window.innerHeight);
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this.view1.camera3D.lookAt(new egret3d.Vector3D(0, 1000, -1000), new egret3d.Vector3D(0, 0, 0));
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this.view1.backColor = 0xff888888;
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this._egret3DCanvas.addView3D(this.view1);
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///启动3DCanvas，注册每帧更新事件
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this._egret3DCanvas.start();
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///创建立方体，放置于场景内(0,0,0)位置
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var mat_cube: egret3d.TextureMaterial = new egret3d.TextureMaterial();
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var geometery_Cube: egret3d.CubeGeometry = new egret3d.CubeGeometry();
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this.cube = new egret3d.Mesh(geometery_Cube, mat_cube);
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this.view1.addChild3D(this.cube);
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///创建面片，放置于场景内(0,0,0)位置
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var mat_Plane: egret3d.TextureMaterial = new egret3d.TextureMaterial();
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var geometery_Plane: egret3d.PlaneGeometry = new egret3d.PlaneGeometry();
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var plane = new egret3d.Mesh(geometery_Plane, mat_Plane);
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this.view1.addChild3D(plane);
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///注册事件，需要依次写入事件标识符，注册方法和注册对象。
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egret3d.Input.addEventListener(egret3d.KeyEvent3D.KEY_DOWN, this.OnKeyDown, this);
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egret3d.Input.addEventListener(egret3d.KeyEvent3D.KEY_UP, this.OnKeyUp, this);
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}
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///按键按下事件响应,其中e: egret3d.KeyEvent3D会作为参数传递给响应事件。
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public OnKeyDown(e: egret3d.KeyEvent3D) {
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///e.keyCode保存了触发该次事件的按键枚举值，通过转换成字符串可以输出。
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var code = egret3d.KeyCode[e.keyCode];
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console.log("OnKeyDown=>" + code);
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}
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///按键弹回事件响应,其中e: egret3d.KeyEvent3D会作为参数传递给响应事件。
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public OnKeyUp(e: egret3d.KeyEvent3D) {
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///e.keyCode保存了触发该次事件的按键枚举值，通过转换成字符串可以输出。
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var code = egret3d.KeyCode[e.keyCode];
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console.log("OnKeyUp=>" + code);
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}
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}
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