iPhone加速度计校准

如何正确校准iPhone游戏的加速计？目前，当手机位于平面上时，拨片会向左漂移。高通或低通滤波器不是一个可接受的解决方案，因为我需要完全控制桨，即使在低和高值。我知道苹果有BubbleLevel样本，但我发现很难跟上。。。有人能简化这个过程吗

//calibrate code from StackOverflow
float calibration = -acceleration.x * accelerationFraction;
float x = (-acceleration.y * accelerationFraction) + calibration;

//My original code
accelerationFraction = acceleration.y*2;
if (accelerationFraction < -1) {
    accelerationFraction = -1;
} else if (accelerationFraction > 1) {
    accelerationFraction = 1;
}
//API CHANGE set delegate to self
if (orientation == UIDeviceOrientationLandscapeLeft){
    accelerationFraction *= -1;
}

我的加速计代码如下所示：

-(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {

float acelx = -acceleration.y;
float x = acelx*40;

Board *board = [Board sharedBoard];
AtlasSprite *paddle = (AtlasSprite *)[board.spriteManager getChildByTag:10];

if ( paddle.position.x > 0 && paddle.position.x < 480) {
    paddle.position = ccp(paddle.position.x+x, paddle.position.y);
}

if ( paddle.position.x < 55 ) {
    paddle.position = ccp(56, paddle.position.y);
}

if ( paddle.position.x > 435 ) {
    paddle.position = ccp(434, paddle.position.y);
}

if ( paddle.position.x < 55 && x > 1 ) {
    paddle.position = ccp(paddle.position.x+x, paddle.position.y);
}

if ( paddle.position.x > 435 && x < 0) {
    paddle.position = ccp(paddle.position.x+x, paddle.position.y);
}
}

//calibrate code from StackOverflow
float calibration = -acceleration.x * accelerationFraction;
float x = (-acceleration.y * accelerationFraction) + calibration;

//My original code
accelerationFraction = acceleration.y*2;
if (accelerationFraction < -1) {
    accelerationFraction = -1;
} else if (accelerationFraction > 1) {
    accelerationFraction = 1;
}
//API CHANGE set delegate to self
if (orientation == UIDeviceOrientationLandscapeLeft){
    accelerationFraction *= -1;
}

-（无效）加速计：（UIAccelerator*）加速计DID加速度：（UIAcceleration*）加速度{
float acelx=-加速度.y；
浮点数x=acelx*40；
董事会*董事会=[董事会共享董事会]；
AtlasSprite*桨=（AtlasSprite*）[board.spriteManager getChildByTag:10]；
如果（拨杆位置x>0和拨杆位置x<480）{
桨叶位置=ccp（桨叶位置x+x，桨叶位置y）；
}
如果（桨叶位置x<55）{
桨叶位置=ccp（56，桨叶位置y）；
}
如果（拨杆位置x>435）{
桨叶位置=ccp（434，桨叶位置y）；
}
如果（拨杆位置x<55&&x>1）{
桨叶位置=ccp（桨叶位置x+x，桨叶位置y）；
}
如果（拨杆位置x>435&&x<0）{
桨叶位置=ccp（桨叶位置x+x，桨叶位置y）；
}
}

---

谢谢大家!

好吧，问题解决了，而且解决办法很简单，我真的很尴尬，我没有早点想出办法。就这么简单：

//calibrate code from StackOverflow
float calibration = -acceleration.x * accelerationFraction;
float x = (-acceleration.y * accelerationFraction) + calibration;

//My original code
accelerationFraction = acceleration.y*2;
if (accelerationFraction < -1) {
    accelerationFraction = -1;
} else if (accelerationFraction > 1) {
    accelerationFraction = 1;
}
//API CHANGE set delegate to self
if (orientation == UIDeviceOrientationLandscapeLeft){
    accelerationFraction *= -1;
}

在“校准按钮”中：

//calibrate code from StackOverflow
float calibration = -acceleration.x * accelerationFraction;
float x = (-acceleration.y * accelerationFraction) + calibration;

//My original code
accelerationFraction = acceleration.y*2;
if (accelerationFraction < -1) {
    accelerationFraction = -1;
} else if (accelerationFraction > 1) {
    accelerationFraction = 1;
}
//API CHANGE set delegate to self
if (orientation == UIDeviceOrientationLandscapeLeft){
    accelerationFraction *= -1;
}

在游戏时间加速计功能中：

//add the offset to the accel value
float x = (-acceleration.y * accelerationFactor) + calibration;

//calibrate code from StackOverflow
float calibration = -acceleration.x * accelerationFraction;
float x = (-acceleration.y * accelerationFraction) + calibration;

//My original code
accelerationFraction = acceleration.y*2;
if (accelerationFraction < -1) {
    accelerationFraction = -1;
} else if (accelerationFraction > 1) {
    accelerationFraction = 1;
}
//API CHANGE set delegate to self
if (orientation == UIDeviceOrientationLandscapeLeft){
    accelerationFraction *= -1;
}

---

只需添加偏移量即可。*隐藏他的头*

这是我目前掌握的代码：

//calibrate code from StackOverflow
float calibration = -acceleration.x * accelerationFraction;
float x = (-acceleration.y * accelerationFraction) + calibration;

//My original code
accelerationFraction = acceleration.y*2;
if (accelerationFraction < -1) {
    accelerationFraction = -1;
} else if (accelerationFraction > 1) {
    accelerationFraction = 1;
}
//API CHANGE set delegate to self
if (orientation == UIDeviceOrientationLandscapeLeft){
    accelerationFraction *= -1;
}

//从StackOverflow校准代码
浮动校准=-加速度.x*加速度分数；
浮动x=（-加速度.y*加速度分数）+校准；
//我的原始代码
加速度分数=加速度y*2；
如果（加速度分数<-1）{
加速度分数=-1；
}否则如果（加速度分数>1）{
加速度分数=1；
}
//API更改集委托给self
if（方向==UIDeviceOrientationAndscapeLeft）{
加速度分数*=-1；
}

这是对主题的全面解释这是一条古老的线索，但我很好奇currentAccelX是什么类型的对象以及accelerationFactor是什么。你能帮我吗？是的，你从哪里弄来的车；currentAccelX和accelerationFactor？这篇文章早在2011年就过时了…我知道现在它更老了，但也许有人能帮我？Thx这是我到目前为止的代码：//calibrate code from StackOverflow float calibration=-acceleration.x*accelerationFraction；浮动x=（-加速度.y*加速度分数）+校准；加速度分数=加速度y*2；if（accelerationFraction<-1）{accelerationFraction=-1；}else if（accelerationFraction>1）{accelerationFraction=1；}//API将委托更改为self if（orientation==UIDeviceOrientationLandscapeLeft）{accelerationFraction*=-1；}请阅读我的解释：