core-egret.MotionEvent

官方 egret.MotionEvent 功能已過時, 請參考下方實作方法

class Main extends eui.UILayer {

    protected createChildren(): void {
        super.createChildren();
        egret.lifecycle.onPause = () => egret.ticker.pause();
        egret.lifecycle.onResume = () => egret.ticker.resume();
        egret.registerImplementation('eui.IAssetAdapter', new AssetAdapter());
        egret.registerImplementation('eui.IThemeAdapter', new ThemeAdapter());
        this.runGame();
    }

    private async loadResource() {
        let loadingView = this.stage.addChild(new LoadingUI()) as LoadingUI;
        await RES.loadConfig('resource/default.res.json', 'resource/');
        await new Promise(resolve => new eui.Theme('resource/default.thm.json', this.stage).once(eui.UIEvent.COMPLETE, resolve, this));
        await RES.loadGroup('preload', 0, loadingView);
        this.stage.removeChild(loadingView);
    }

    private async runGame() {
        await this.loadResource();
        // --- Edwin 給你最乾淨的程式碼, 從這行以下開始寫喔 ---

        // 1. https 模式下才有 DeviceMotionEvent, http 不行
        // 2. 必須使用者點選按鈕後才能執行 DeviceOrientationEvent.requestPermission
        // 3. ios safari 測試有 DeviceOrientationEvent.requestPermission 函式，執行後會跳出 Dialog 詢問是否允許開啟功能，選允許
        // 4. 最後記得註冊 devicemotion 事件即可正常執行

        // 顯示資訊按鈕
        const displayLabel = new eui.Label;
        displayLabel.x = 50;
        displayLabel.y = 100;
        this.addChild(displayLabel);

        // 綁定 DeviceMotion 事件按鈕
        const triggerBtn = new eui.Button();
        triggerBtn.label = '點擊綁定 DeviceMotion 事件';
        triggerBtn.y = 50;
        triggerBtn.x = 50;
        this.addChild(triggerBtn);
        triggerBtn.once(egret.TouchEvent.TOUCH_TAP, () => {
            // 檢查是否有 requestPermission 功能
            if (typeof DeviceMotionEvent['requestPermission'] === 'function') {
                // 詢問是否可以啟用 devicemotion 功能
                DeviceMotionEvent['requestPermission']()
                    .then(response => {
                        if (response == 'granted') {
                            // 註冊 devicemotion 事件
                            window.addEventListener('devicemotion', e => {
                                const acceleration:egret.DeviceAcceleration = {
                                    x: e.acceleration.x,
                                    y: e.acceleration.y,
                                    z: e.acceleration.z
                                };
                                const accelerationIncludingGravity:egret.DeviceAcceleration = {
                                    x: e.accelerationIncludingGravity.x,
                                    y: e.accelerationIncludingGravity.y,
                                    z: e.accelerationIncludingGravity.z
                                };
                                const rotation:egret.DeviceRotationRate = {
                                    alpha: e.rotationRate.alpha,
                                    beta: e.rotationRate.beta,
                                    gamma: e.rotationRate.gamma
                                };
                                const event = { acceleration, accelerationIncludingGravity, rotation };
                                displayLabel.text = JSON.stringify(event, null, '\t');
                            });
                        }
                    })
                    .catch(function (error) {
                        displayLabel.text = 'DeviceMotionEvent not enabled : '+error;
                    })
            } else {
                displayLabel.text = 'DeviceMotionEvent not support!';
            }
        }, this);

    }

}