cocos2D 使CCSprite可以觸發touch事件

參考來源

把TouchSprite 再改一下..讓它可以設定要執行的動作,這樣就跟用CCMenu差不多了

簡單的說就是,新增一個繼承CCSprite的類別,
且加入並實作 <CCTargetedTouchDelegate> 的協定 .
實作類別如下.




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//  TouchSprite.h

#import <Foundation/Foundation.h>

#import "cocos2d.h"

@interface TouchSprite : CCSprite <CCTargetedTouchDelegate> {

    id targetCallback_;

    SEL selector_;

}
- (id)initWithFile:(NSString *)filename target:(id)target selector:(SEL)selector;

@end

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//  TouchSprite.m

#import "TouchSprite.h"

@implementation TouchSprite

- (id)initWithFile:(NSString *)filename target:(id)target selector:(SEL)selector{

    self = [super initWithFile:filename];

    if (self) {

        targetCallback_ = target;

        selector_ = selector;

    }

    

    return self;

}

- (void)dealloc{

    targetCallback_ = nil;

    selector_ = nil;

    [super dealloc];

}

- (void)onEnter{

    [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:1 swallowsTouches:NO];

    [super onEnter];

}

- (void)onExit{

    [[CCTouchDispatcher sharedDispatcher] removeDelegate:self];

    [super onExit];

} 

- (CGRect)rect{

    CGSize s = [self boundingBox].size;

    return CGRectMake(-s.width / 2, -s.height / 2, s.width, s.height);

}

- (BOOL)containsTouchLocation:(UITouch *)touch{

    return CGRectContainsPoint(self.rect, [self convertTouchToNodeSpaceAR:touch]);

}

- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event{

    if([self containsTouchLocation : touch]){

        NSLog(@"Touch Began");

        [targetCallback_ performSelector:selector_];

    }

    return YES;

}

- (void)ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event{

    if([self containsTouchLocation : touch]){

        NSLog(@"Touch Ended");

    }

}

@end

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後來發現這個沒辦法達到我要的效果....


然後找了一下,發現只要用

CCSprite *p1Spr = [[CCSprite alloc] initWithFile:@"scene.png"];

CCSprite * p1Sprselected = [[CCSprite alloc] initWithFile:@"scene.png"];

CCMenuItemSprite *p1Ment = [CCMenuItemSprite itemFromNormalSprite:p1Spr selectedSprite:p1Sprselected target:self selector:@selector(toLevelSelect:)]; 

CCMenu *mn1 = [CCMenu menuWithItems:p1Ment, nil];

[pageOne addChild:mn1];

這樣就可以做到我想要的

用sprite顯示一張圖, 然後點擊到圖的範圍就可以執行我要的動作....

同樣內容的東西 產生兩個CCSprite , 是因為
CCMenuItemSprite itemFromNormalSprite:xxx selectedSprite:yyy target:...
這邊的xxx跟yyy不能是同一個來源,不然會出錯..