通过倾斜设备移动节点

Question

我想通过左右倾斜设备来移动球体。我现在的代码正在工作，除了我必须上下倾斜设备 - 而我状态data.acceleration.y - > Y轴？

这里是我的代码：

motionManager = [[CMMotionManager alloc] init]; 
if ([motionManager isAccelerometerAvailable] == YES) { 
    [motionManager startAccelerometerUpdatesToQueue:[[NSOperationQueue alloc] init] 
             withHandler:^(CMAccelerometerData *data, NSError *error) 
    { 
     float destX, destY; 
     float currentX = sphereNode.position.x; 
     float currentY = sphereNode.position.y; 
     BOOL shouldMove = NO; 

     if(data.acceleration.y < -0.25) { // tilting the device to the right 
      destX = currentX + (data.acceleration.y * kPlayerSpeed); 
      destY = currentY; 
      shouldMove = YES; 
     } else if (data.acceleration.y > 0.25) { // tilting the device to the left 
      destX = currentX + (data.acceleration.y * kPlayerSpeed); 
      destY = currentY; 
      shouldMove = YES; 
     } 
     if(shouldMove) { 
      SKAction *action = [SKAction moveTo:CGPointMake(destX, destY) duration:1]; 
      [sphereNode runAction:action]; 
     } 
    }]; 
} 

任何帮助，非常感谢！

Answer 1

Y轴确实与设备的顶部和底部对齐。您很可能正在查找CMAccelerometerData数据对象的x轴。

这一切都在Event handling guide for iOS : Motion Events文档中解释。

也许看看一些教程（如iOS Programming Recipe 19: Using Core Motion to Access Gyro and Accelerometer）也可以帮助你。