105 lines
2.6 KiB
Objective-C
105 lines
2.6 KiB
Objective-C
///**********************************************************************************************************************************
|
|
/// GCOneShotEffectTimer.m
|
|
/// GCDrawKit
|
|
///
|
|
/// Created by graham on 24/04/2007.
|
|
/// Released under the Creative Commons license 2007 Apptree.net.
|
|
///
|
|
///
|
|
/// This work is licensed under the Creative Commons Attribution-ShareAlike 2.5 License.
|
|
/// To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/2.5/ or send a letter to
|
|
/// Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.
|
|
///
|
|
///**********************************************************************************************************************************
|
|
|
|
#import "GCOneShotEffectTimer.h"
|
|
|
|
#import "Logging.h"
|
|
|
|
@interface GCOneShotEffectTimer (Private)
|
|
|
|
- (id) initWithTimeInterval:(NSTimeInterval) t forDelegate:(id) del;
|
|
- (void) setDelegate:(id) del;
|
|
- (id) delegate;
|
|
- (void) osfx_callback:(NSTimer*) timer;
|
|
|
|
@end
|
|
|
|
|
|
@implementation GCOneShotEffectTimer
|
|
|
|
+ (id) oneShotWithTime:(NSTimeInterval) t forDelegate:(id) del
|
|
{
|
|
GCOneShotEffectTimer* ft = [[GCOneShotEffectTimer alloc] initWithTimeInterval:t forDelegate:del];
|
|
|
|
// unlike the usual case, this is returned retained (by self, effectively). The one-shot releases
|
|
// itself when it's complete
|
|
|
|
return ft;
|
|
}
|
|
|
|
|
|
- (id) initWithTimeInterval:(NSTimeInterval) t forDelegate:(id) del
|
|
{
|
|
if ((self = [super init]))
|
|
{
|
|
[self setDelegate:del];
|
|
|
|
_total = t;
|
|
_timer = [NSTimer scheduledTimerWithTimeInterval:1/60.0f target:self selector:@selector(osfx_callback:) userInfo:nil repeats:YES];
|
|
_start = [NSDate timeIntervalSinceReferenceDate];
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
|
|
- (void) dealloc
|
|
{
|
|
[_timer invalidate];
|
|
}
|
|
|
|
|
|
- (void) setDelegate:(id) del
|
|
{
|
|
// delegate is retained and released when one-shot completes. This allows some effects to work even
|
|
// though the original delegate might be released by the caller.
|
|
|
|
_delegate = del;
|
|
}
|
|
|
|
|
|
- (id) delegate
|
|
{
|
|
return _delegate;
|
|
}
|
|
|
|
|
|
- (void) osfx_callback:(NSTimer*) timer
|
|
{
|
|
NSTimeInterval elapsed = [NSDate timeIntervalSinceReferenceDate] - _start;
|
|
float val = elapsed / _total;
|
|
|
|
//DLog(@"t = %f", val );
|
|
|
|
if ( elapsed > _total )
|
|
{
|
|
[timer invalidate];
|
|
_timer = nil;
|
|
|
|
if ( _delegate && [_delegate respondsToSelector:@selector(oneShotComplete)])
|
|
[_delegate oneShotComplete];
|
|
}
|
|
else
|
|
{
|
|
if ( _delegate && [_delegate respondsToSelector:@selector(oneShotHasReached:)])
|
|
[_delegate oneShotHasReached:val];
|
|
|
|
if ( _delegate && [_delegate respondsToSelector:@selector(oneShotHasReachedInverse:)])
|
|
[_delegate oneShotHasReachedInverse:1.0 - val];
|
|
}
|
|
}
|
|
|
|
|
|
@end
|