From 9cd57b731ab1c666d4a1cb725538fdc137763d12 Mon Sep 17 00:00:00 2001 From: Starla Insigna Date: Sat, 30 Jul 2011 11:19:14 -0400 Subject: Initial commit (version 0.2.1) --- libs/cocos2d/CCActionEase.m | 534 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 534 insertions(+) create mode 100755 libs/cocos2d/CCActionEase.m (limited to 'libs/cocos2d/CCActionEase.m') diff --git a/libs/cocos2d/CCActionEase.m b/libs/cocos2d/CCActionEase.m new file mode 100755 index 0000000..f28be11 --- /dev/null +++ b/libs/cocos2d/CCActionEase.m @@ -0,0 +1,534 @@ +/* + * cocos2d for iPhone: http://www.cocos2d-iphone.org + * + * Copyright (c) 2008-2009 Jason Booth + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ + + +/* + * Elastic, Back and Bounce actions based on code from: + * http://github.com/NikhilK/silverlightfx/ + * + * by http://github.com/NikhilK + */ + +#import "CCActionEase.h" + +#ifndef M_PI_X_2 +#define M_PI_X_2 (float)M_PI * 2.0f +#endif + +#pragma mark EaseAction + +// +// EaseAction +// +@implementation CCActionEase + ++(id) actionWithAction: (CCActionInterval*) action +{ + return [[[self alloc] initWithAction: action] autorelease ]; +} + +-(id) initWithAction: (CCActionInterval*) action +{ + NSAssert( action!=nil, @"Ease: arguments must be non-nil"); + + if( (self=[super initWithDuration: action.duration]) ) + other = [action retain]; + + return self; +} + +-(id) copyWithZone: (NSZone*) zone +{ + CCAction *copy = [[[self class] allocWithZone:zone] initWithAction:[[other copy] autorelease]]; + return copy; +} + +-(void) dealloc +{ + [other release]; + [super dealloc]; +} + +-(void) startWithTarget:(id)aTarget +{ + [super startWithTarget:aTarget]; + [other startWithTarget:target_]; +} + +-(void) stop +{ + [other stop]; + [super stop]; +} + +-(void) update: (ccTime) t +{ + [other update: t]; +} + +-(CCActionInterval*) reverse +{ + return [[self class] actionWithAction: [other reverse]]; +} +@end + + +#pragma mark - +#pragma mark EaseRate + +// +// EaseRateAction +// +@implementation CCEaseRateAction +@synthesize rate; ++(id) actionWithAction: (CCActionInterval*) action rate:(float)aRate +{ + return [[[self alloc] initWithAction: action rate:aRate] autorelease ]; +} + +-(id) initWithAction: (CCActionInterval*) action rate:(float)aRate +{ + if( (self=[super initWithAction:action ]) ) + self.rate = aRate; + + return self; +} + +-(id) copyWithZone: (NSZone*) zone +{ + CCAction *copy = [[[self class] allocWithZone:zone] initWithAction:[[other copy] autorelease] rate:rate]; + return copy; +} + +-(void) dealloc +{ + [super dealloc]; +} + +-(CCActionInterval*) reverse +{ + return [[self class] actionWithAction: [other reverse] rate:1/rate]; +} +@end + +// +// EeseIn +// +@implementation CCEaseIn +-(void) update: (ccTime) t +{ + [other update: powf(t,rate)]; +} +@end + +// +// EaseOut +// +@implementation CCEaseOut +-(void) update: (ccTime) t +{ + [other update: powf(t,1/rate)]; +} +@end + +// +// EaseInOut +// +@implementation CCEaseInOut +-(void) update: (ccTime) t +{ + int sign =1; + int r = (int) rate; + if (r % 2 == 0) + sign = -1; + t *= 2; + if (t < 1) + [other update: 0.5f * powf (t, rate)]; + else + [other update: sign*0.5f * (powf (t-2, rate) + sign*2)]; +} + +// InOut and OutIn are symmetrical +-(CCActionInterval*) reverse +{ + return [[self class] actionWithAction: [other reverse] rate:rate]; +} + +@end + +#pragma mark - +#pragma mark EaseExponential + +// +// EaseExponentialIn +// +@implementation CCEaseExponentialIn +-(void) update: (ccTime) t +{ + [other update: (t==0) ? 0 : powf(2, 10 * (t/1 - 1)) - 1 * 0.001f]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseExponentialOut actionWithAction: [other reverse]]; +} +@end + +// +// EaseExponentialOut +// +@implementation CCEaseExponentialOut +-(void) update: (ccTime) t +{ + [other update: (t==1) ? 1 : (-powf(2, -10 * t/1) + 1)]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseExponentialIn actionWithAction: [other reverse]]; +} +@end + +// +// EaseExponentialInOut +// +@implementation CCEaseExponentialInOut +-(void) update: (ccTime) t +{ + t /= 0.5f; + if (t < 1) + t = 0.5f * powf(2, 10 * (t - 1)); + else + t = 0.5f * (-powf(2, -10 * (t -1) ) + 2); + + [other update:t]; +} +@end + + +#pragma mark - +#pragma mark EaseSin actions + +// +// EaseSineIn +// +@implementation CCEaseSineIn +-(void) update: (ccTime) t +{ + [other update:-1*cosf(t * (float)M_PI_2) +1]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseSineOut actionWithAction: [other reverse]]; +} +@end + +// +// EaseSineOut +// +@implementation CCEaseSineOut +-(void) update: (ccTime) t +{ + [other update:sinf(t * (float)M_PI_2)]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseSineIn actionWithAction: [other reverse]]; +} +@end + +// +// EaseSineInOut +// +@implementation CCEaseSineInOut +-(void) update: (ccTime) t +{ + [other update:-0.5f*(cosf( (float)M_PI*t) - 1)]; +} +@end + +#pragma mark - +#pragma mark EaseElastic actions + +// +// EaseElastic +// +@implementation CCEaseElastic + +@synthesize period = period_; + ++(id) actionWithAction: (CCActionInterval*) action +{ + return [[[self alloc] initWithAction:action period:0.3f] autorelease]; +} + ++(id) actionWithAction: (CCActionInterval*) action period:(float)period +{ + return [[[self alloc] initWithAction:action period:period] autorelease]; +} + +-(id) initWithAction: (CCActionInterval*) action +{ + return [self initWithAction:action period:0.3f]; +} + +-(id) initWithAction: (CCActionInterval*) action period:(float)period +{ + if( (self=[super initWithAction:action]) ) + period_ = period; + + return self; +} + +-(id) copyWithZone: (NSZone*) zone +{ + CCAction *copy = [[[self class] allocWithZone:zone] initWithAction:[[other copy] autorelease] period:period_]; + return copy; +} + +-(CCActionInterval*) reverse +{ + NSAssert(NO,@"Override me"); + return nil; +} + +@end + +// +// EaseElasticIn +// + +@implementation CCEaseElasticIn +-(void) update: (ccTime) t +{ + ccTime newT = 0; + if (t == 0 || t == 1) + newT = t; + + else { + float s = period_ / 4; + t = t - 1; + newT = -powf(2, 10 * t) * sinf( (t-s) *M_PI_X_2 / period_); + } + [other update:newT]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseElasticOut actionWithAction: [other reverse] period:period_]; +} + +@end + +// +// EaseElasticOut +// +@implementation CCEaseElasticOut + +-(void) update: (ccTime) t +{ + ccTime newT = 0; + if (t == 0 || t == 1) { + newT = t; + + } else { + float s = period_ / 4; + newT = powf(2, -10 * t) * sinf( (t-s) *M_PI_X_2 / period_) + 1; + } + [other update:newT]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseElasticIn actionWithAction: [other reverse] period:period_]; +} + +@end + +// +// EaseElasticInOut +// +@implementation CCEaseElasticInOut +-(void) update: (ccTime) t +{ + ccTime newT = 0; + + if( t == 0 || t == 1 ) + newT = t; + else { + t = t * 2; + if(! period_ ) + period_ = 0.3f * 1.5f; + ccTime s = period_ / 4; + + t = t -1; + if( t < 0 ) + newT = -0.5f * powf(2, 10 * t) * sinf((t - s) * M_PI_X_2 / period_); + else + newT = powf(2, -10 * t) * sinf((t - s) * M_PI_X_2 / period_) * 0.5f + 1; + } + [other update:newT]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseElasticInOut actionWithAction: [other reverse] period:period_]; +} + +@end + +#pragma mark - +#pragma mark EaseBounce actions + +// +// EaseBounce +// +@implementation CCEaseBounce +-(ccTime) bounceTime:(ccTime) t +{ + if (t < 1 / 2.75) { + return 7.5625f * t * t; + } + else if (t < 2 / 2.75) { + t -= 1.5f / 2.75f; + return 7.5625f * t * t + 0.75f; + } + else if (t < 2.5 / 2.75) { + t -= 2.25f / 2.75f; + return 7.5625f * t * t + 0.9375f; + } + + t -= 2.625f / 2.75f; + return 7.5625f * t * t + 0.984375f; +} +@end + +// +// EaseBounceIn +// + +@implementation CCEaseBounceIn + +-(void) update: (ccTime) t +{ + ccTime newT = 1 - [self bounceTime:1-t]; + [other update:newT]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseBounceOut actionWithAction: [other reverse]]; +} + +@end + +@implementation CCEaseBounceOut + +-(void) update: (ccTime) t +{ + ccTime newT = [self bounceTime:t]; + [other update:newT]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseBounceIn actionWithAction: [other reverse]]; +} + +@end + +@implementation CCEaseBounceInOut + +-(void) update: (ccTime) t +{ + ccTime newT = 0; + if (t < 0.5) { + t = t * 2; + newT = (1 - [self bounceTime:1-t] ) * 0.5f; + } else + newT = [self bounceTime:t * 2 - 1] * 0.5f + 0.5f; + + [other update:newT]; +} +@end + +#pragma mark - +#pragma mark Ease Back actions + +// +// EaseBackIn +// +@implementation CCEaseBackIn + +-(void) update: (ccTime) t +{ + ccTime overshoot = 1.70158f; + [other update: t * t * ((overshoot + 1) * t - overshoot)]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseBackOut actionWithAction: [other reverse]]; +} +@end + +// +// EaseBackOut +// +@implementation CCEaseBackOut +-(void) update: (ccTime) t +{ + ccTime overshoot = 1.70158f; + + t = t - 1; + [other update: t * t * ((overshoot + 1) * t + overshoot) + 1]; +} + +- (CCActionInterval*) reverse +{ + return [CCEaseBackIn actionWithAction: [other reverse]]; +} +@end + +// +// EaseBackInOut +// +@implementation CCEaseBackInOut + +-(void) update: (ccTime) t +{ + ccTime overshoot = 1.70158f * 1.525f; + + t = t * 2; + if (t < 1) + [other update: (t * t * ((overshoot + 1) * t - overshoot)) / 2]; + else { + t = t - 2; + [other update: (t * t * ((overshoot + 1) * t + overshoot)) / 2 + 1]; + } +} +@end -- cgit 1.4.1