gistfile1.m

#pragma mark -
#pragma mark animationScenario
// イメージを横長の領域に散らして配置したViewを作成する
- (id)initWithImages:(NSArray*)images {
	if (self = [super init]) {
		// Initialization code
		NSLog(@"EasterEggImage initWithImage");
		int randVal = 0;
		UIImageView *timage = nil;
		id orgImage = nil;
		int placedelay = stageWidth / gadgets;
		timage = [images objectAtIndex:0];
		int placeWidth = placedelay;
		if (timage != nil) {
			placeWidth -= timage.bounds.size.width;
			placeWidth = placeWidth == 0 ? 1 : placeWidth;
		}
		NSLog(@"placeWidth, placedelay = %d, %d", placeWidth, placedelay);
		for (int i = 0; i < gadgets; i++) {
			SecRandomCopyBytes(kSecRandomDefault, 4, (uint8_t*)&randVal);
			orgImage = [images objectAtIndex:randVal % images.count];
			timage = [[[UIImageView alloc] initWithImage:((UIImageView*)orgImage).image] autorelease];
			timage.center = CGPointMake(placedelay * i + (randVal >> 16) % placeWidth, - (randVal & 0xffff) % stageHeight);
			// NSLog(@"point %0.2f, %0.2f", timage.center.x, timage.center.y);
			[self addSubview:timage];
		}
		SecRandomCopyBytes(kSecRandomDefault, 2, (uint8_t*)&randVal);
		self.alpha = 0.0f;
		self.center = CGPointMake(0.0f, 0.0f);
		SecRandomCopyBytes(kSecRandomDefault, 4, (uint8_t*)&randVal);
		self.startPoint = CGPointMake((randVal >> 16) & 0x0ffff % 320, (randVal & 0x0ffff) % 480);
	}
	return self;
}

// ガジェットアニメーション
// ※継承してここを書き換える事で動作が変わります。
- (void)startAnimating {
	NSLog(@"EasterEggView -startAnimating");
	CGMutablePathRef thePath = CGPathCreateMutable();
	//Start Point
	CGPathMoveToPoint(thePath, NULL, self.startPoint.x, self.startPoint.y);
	CGPathAddLineToPoint(thePath, NULL, self.endPoint.x, self.endPoint.y);
	// KeyAnimationを作成(座標)
	CAKeyframeAnimation* positionAnimation;
	positionAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];
	positionAnimation.path = thePath;
	positionAnimation.duration = 5.0f;
	//描画速度の調整
	positionAnimation.timingFunction = [CAMediaTimingFunction functionWithControlPoints:0.0f :0.0f :0.6f :0.8f];
	[self.layer addAnimation:positionAnimation forKey:@"imagePosition"];
	CFRelease(thePath);
}

#pragma mark -
#pragma mark CAAnimationDelegate

// アニメーションが停止する時
- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag {
	// 自分を唯一参照している親viewから取り除く事でメモリを解放する
	[self removeFromSuperview];
}