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SDLUIAccelerationDelegate.m
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//
// SDLUIAccelerationDelegate.m
// iPodSDL
//
// Created by Holmes Futrell on 6/21/08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import "SDLUIAccelerationDelegate.h"
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#import "../../../include/SDL_config_iphoneos.h"
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static SDLUIAccelerationDelegate *sharedDelegate=nil;
@implementation SDLUIAccelerationDelegate
+(SDLUIAccelerationDelegate *)sharedDelegate {
if (sharedDelegate == nil) {
sharedDelegate = [[SDLUIAccelerationDelegate alloc] init];
}
return sharedDelegate;
}
-(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
x = acceleration.x;
y = acceleration.y;
z = acceleration.z;
hasNewData = YES;
//timestamp = acceleration.timestamp;
}
-(void)getLastOrientation:(Sint16 *)data {
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#define MAX_SINT16 0x7FFF
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if (x > SDL_IPHONE_MAX_GFORCE) x = SDL_IPHONE_MAX_GFORCE;
else if (x < -SDL_IPHONE_MAX_GFORCE) x = -SDL_IPHONE_MAX_GFORCE;
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if (y > SDL_IPHONE_MAX_GFORCE) y = SDL_IPHONE_MAX_GFORCE;
else if (y < -SDL_IPHONE_MAX_GFORCE) y = -SDL_IPHONE_MAX_GFORCE;
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if (z > SDL_IPHONE_MAX_GFORCE) z = SDL_IPHONE_MAX_GFORCE;
else if (z < -SDL_IPHONE_MAX_GFORCE) z = -SDL_IPHONE_MAX_GFORCE;
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data[0] = (x / SDL_IPHONE_MAX_GFORCE) * MAX_SINT16;
data[1] = (y / SDL_IPHONE_MAX_GFORCE) * MAX_SINT16;
data[2] = (z / SDL_IPHONE_MAX_GFORCE) * MAX_SINT16;
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}
-(id)init {
self = [super init];
x = y = z = 0.0;
return self;
}
-(void)dealloc {
sharedDelegate = nil;
[super dealloc];
}
-(void)startup {
[UIAccelerometer sharedAccelerometer].delegate = self;
isRunning = YES;
}
-(void)shutdown {
[UIAccelerometer sharedAccelerometer].delegate = nil;
isRunning = NO;
}
-(BOOL)isRunning {
return isRunning;
}
-(BOOL)hasNewData {
return hasNewData;
}
-(void)setHasNewData:(BOOL)value {
hasNewData = value;
}
@end