ネタが無いので、パクリました。_( TxT)_
Emitting (発光 by Google 翻訳先生) のパクリネタ
本家を読んでくださいね。
パクリ元
UIKit Particle System in iOS 5 Tutorial
参考という名目のパクリ元
CAEmitterLayer and CAEmitterCellアップるぅぅぅの記事ですよね
その他ぽいの
プロパティの説明
| birthRate | 毎秒どれくらいオブジェクトを作るか |
| lifetime | セルのライフタイム |
| color | tint 色合いを設定 |
| contents | CGImageRef を設定 |
Layer は emitterShape と emitterPosition を設定するくらいでしょうか
| emitterShape | オブジェクトの作成方法を設定 |
動かすとこんな感じ
使った適当な画像はこれです
ソース
ファイルのコメント的にはコピペはOKそうだったのですが。
問題ありましたらご指摘ください
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| // | |
| // DSAppDelegate.m | |
| // DrawSmoke | |
| // | |
| // Created by developer on 12/03/27. | |
| // Copyright (c) 2012 your good mind. All rights reserved. | |
| // | |
| #import "DSAppDelegate.h" | |
| #import <QuartzCore/QuartzCore.h> | |
| #if __has_feature(objc_arc) | |
| #define ARC_ON | |
| #define AUTORELEASE(A) A | |
| #define RETAIN(A) A | |
| #define RELEASE(A) | |
| #else | |
| #define ARC_OFF | |
| #define AUTORELEASE(A) [A autorelease] | |
| #define RETAIN(A) [A retain] | |
| #define RELEASE(A) [A release] | |
| #endif | |
| // | |
| // SmokeView | |
| // | |
| @interface DSSmokeView : UIView | |
| @end | |
| @implementation DSSmokeView | |
| -(id) initWithFrame:(CGRect)frame { | |
| if ((self = [super initWithFrame:frame]) != nil) { | |
| CAEmitterLayer* fireEmitter = (CAEmitterLayer*)self.layer; | |
| fireEmitter.emitterPosition = CGPointMake(self.bounds.size.width/2, self.bounds.size.height); | |
| fireEmitter.emitterMode = kCAEmitterLayerSurface; //kCAEmitterLayerOutline; | |
| fireEmitter.emitterShape = kCAEmitterLayerLine; // kCAEmitterLayerSphere; kCAEmitterLayerCircle; kCAEmitterLayerPoint; | |
| fireEmitter.emitterSize = CGSizeMake(self.bounds.size.width/5,self.bounds.size.width/5 ); | |
| float gas=.6; | |
| CAEmitterCell *smoke = [CAEmitterCell emitterCell]; | |
| smoke.BirthRate = 0;//11; | |
| smoke.emissionLongitude = -M_PI ; | |
| smoke.emissionLatitude = -M_PI; | |
| smoke.lifetime = gas*4; | |
| smoke.Velocity = 40; | |
| smoke.VelocityRange = 20; | |
| smoke.emissionRange = M_PI / 4; | |
| smoke.Spin = 1; | |
| smoke.SpinRange = 6; | |
| smoke.yAcceleration = -160; | |
| smoke.Scale = 0.3f; | |
| smoke.AlphaSpeed = -0.22f; | |
| smoke.ScaleSpeed = 0.7f; | |
| smoke.color = [[UIColor colorWithRed:1 green:1 blue:1 alpha:0.3*gas] CGColor]; | |
| smoke.contents = (id)[[UIImage imageNamed:@"smoke.png"] CGImage]; | |
| [smoke setName:@"smoke"]; | |
| fireEmitter.emitterCells = [NSArray arrayWithObject:smoke]; | |
| } | |
| return self; | |
| } | |
| + (Class) layerClass { | |
| //configure the UIView to have emitter layer | |
| return [CAEmitterLayer class]; | |
| } | |
| -(void)setEmitterPositionFromTouch: (UITouch*)t { | |
| CAEmitterLayer* smokeEmitter = (CAEmitterLayer*)self.layer; | |
| //change the emitter's position | |
| smokeEmitter.emitterPosition = [t locationInView:self]; | |
| } | |
| -(void)setIsEmitting:(BOOL)isEmitting { | |
| CAEmitterLayer* smokeEmitter = (CAEmitterLayer*)self.layer; | |
| //turn on/off the emitting of particles | |
| [smokeEmitter setValue:[NSNumber numberWithInt:isEmitting?50:0] forKeyPath:@"emitterCells.smoke.birthRate"]; | |
| } | |
| @end | |
| // | |
| // ViewController | |
| // | |
| @interface DSViewController : UIViewController | |
| @end | |
| @implementation DSViewController | |
| -(void) loadView { | |
| CGRect screen = [[UIScreen mainScreen] bounds]; | |
| DSSmokeView* smoke = [[DSSmokeView alloc] initWithFrame:screen]; | |
| smoke.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; | |
| smoke.backgroundColor = [UIColor whiteColor]; | |
| self.view = smoke; | |
| } | |
| - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { | |
| return YES; | |
| } | |
| - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { | |
| [(DSSmokeView*)self.view setEmitterPositionFromTouch: [touches anyObject]]; | |
| } | |
| - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { | |
| [(DSSmokeView*)self.view setEmitterPositionFromTouch: [touches anyObject]]; | |
| [(DSSmokeView*)self.view setIsEmitting:YES]; | |
| } | |
| - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { | |
| [(DSSmokeView*)self.view setIsEmitting:NO]; | |
| } | |
| - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { | |
| [(DSSmokeView*)self.view setIsEmitting:NO]; | |
| } | |
| @end | |
| // | |
| // DSAppDelegate | |
| // | |
| // | |
| // Header File | |
| // #import <UIKit/UIKit.h> | |
| // | |
| // @interface DSAppDelegate : UIResponder <UIApplicationDelegate> | |
| // | |
| // @property (strong, nonatomic) UIWindow *window; | |
| // | |
| // @end | |
| // | |
| // | |
| // | |
| // | |
| @implementation DSAppDelegate | |
| @synthesize window = _window; | |
| #ifdef ARC_OFF | |
| - (void)dealloc { | |
| [_window release]; | |
| [super dealloc]; | |
| } | |
| #endif | |
| - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { | |
| self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; | |
| self.window.rootViewController = AUTORELEASE([[DSViewController alloc] initWithNibName:nil bundle:nil]); | |
| [self.window makeKeyAndVisible]; | |
| return YES; | |
| } | |
| - (void)applicationWillResignActive:(UIApplication *)application {} | |
| - (void)applicationDidEnterBackground:(UIApplication *)application {} | |
| - (void)applicationWillEnterForeground:(UIApplication *)application {} | |
| - (void)applicationDidBecomeActive:(UIApplication *)application {} | |
| - (void)applicationWillTerminate:(UIApplication *)application {} | |
| @end |
