SameBoy/JoyKit/JOYHat.m

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#import "JOYHat.h"
#import "JOYElement.h"
#import <AppKit/AppKit.h>
@implementation JOYHat
{
JOYElement *_element;
double _state;
}
- (uint64_t)uniqueID
{
return _element.uniqueID;
}
- (NSString *)description
{
if (self.isPressed) {
return [NSString stringWithFormat:@"<%@: %p (%llu); State: %f degrees>", self.className, self, self.uniqueID, self.angle];
}
return [NSString stringWithFormat:@"<%@: %p (%llu); State: released>", self.className, self, self.uniqueID];
}
- (instancetype)initWithElement:(JOYElement *)element
{
self = [super init];
if (!self) return self;
_element = element;
_state = -1;
return self;
}
- (bool)isPressed
{
return _state >= 0 && _state < 360;
}
- (double)angle
{
if (self.isPressed) return fmod((_state + 270), 360);
return -1;
}
- (unsigned)resolution
{
return _element.max - _element.min + 1;
}
- (bool)updateState
{
unsigned state = ([_element value] - _element.min) * 360.0 / self.resolution;
if (_state != state) {
_state = state;
return true;
}
return false;
}
@end