Refine sensor integration strategy

miniprogram/engine/sensor/gyroscopeController.ts

@@ -0,0 +1,85 @@
+export interface GyroscopeControllerCallbacks {
+  onSample: (x: number, y: number, z: number) => void
+  onError: (message: string) => void
+}
+
+export class GyroscopeController {
+  callbacks: GyroscopeControllerCallbacks
+  listening: boolean
+  starting: boolean
+  gyroCallback: ((result: WechatMiniprogram.OnGyroscopeChangeCallbackResult) => void) | null
+
+  constructor(callbacks: GyroscopeControllerCallbacks) {
+    this.callbacks = callbacks
+    this.listening = false
+    this.starting = false
+    this.gyroCallback = null
+  }
+
+  start(): void {
+    if (this.listening || this.starting) {
+      return
+    }
+
+    if (typeof wx.startGyroscope !== 'function' || typeof wx.onGyroscopeChange !== 'function') {
+      this.callbacks.onError('当前环境不支持陀螺仪监听')
+      return
+    }
+
+    const callback = (result: WechatMiniprogram.OnGyroscopeChangeCallbackResult) => {
+      if (
+        typeof result.x !== 'number'
+        || typeof result.y !== 'number'
+        || typeof result.z !== 'number'
+        || Number.isNaN(result.x)
+        || Number.isNaN(result.y)
+        || Number.isNaN(result.z)
+      ) {
+        return
+      }
+
+      this.callbacks.onSample(result.x, result.y, result.z)
+    }
+
+    this.gyroCallback = callback
+    wx.onGyroscopeChange(callback)
+    this.starting = true
+    wx.startGyroscope({
+      interval: 'game',
+      success: () => {
+        this.starting = false
+        this.listening = true
+      },
+      fail: (res) => {
+        this.starting = false
+        this.detachCallback()
+        this.callbacks.onError(res && res.errMsg ? res.errMsg : 'startGyroscope failed')
+      },
+    })
+  }
+
+  stop(): void {
+    this.detachCallback()
+    wx.stopGyroscope({
+      complete: () => {},
+    })
+    this.starting = false
+    this.listening = false
+  }
+
+  destroy(): void {
+    this.stop()
+  }
+
+  private detachCallback(): void {
+    if (!this.gyroCallback) {
+      return
+    }
+
+    if (typeof wx.offGyroscopeChange === 'function') {
+      wx.offGyroscopeChange(this.gyroCallback)
+    }
+
+    this.gyroCallback = null
+  }
+}