iOS_31_cocos2d_消息调度

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最终效果如图:

cocos2d V3 只要实现了- (void)update:(CCTime)delta方法,

就会自动调用它,无需手动调用

foreach 或者说for in遍历的时侯,不能增删成员

封装的子弹类,继承自CCSprite

////  Bullet.h//  31_cocos2D入门////  Created by beyond on 14-9-7.//  Copyright (c) 2014年 com.beyond. All rights reserved.//  子弹 成员属性:速度  每秒移动多少#import "CCSprite.h"@interface Bullet : CCSprite// 速度(每秒挪动这个速度)@property (nonatomic, assign) CGPoint velocity;@end

////  Bullet.m//  31_cocos2D入门////  Created by beyond on 14-9-7.//  Copyright (c) 2014年 com.beyond. All rights reserved.//#import "Bullet.h"@implementation Bullet// do nothing in cocos2d v3- (id)initWithTexture:(CCTexture *)texture rect:(CGRect)rect{<span style="white-space:pre"></span>    if (self = [super initWithTexture:texture rect:rect]) {        // 默认会调用update:        // [self schedule:@selector(update:) interval:0];                        // 取消消息调度        // [self unschedule:<#(SEL)#>];    }    return self;}// 路程 = 速度 * 时间// delta 两次刷帧的时间间距- (void)update:(CCTime)delta{    // 每次增加5的x值    // self.position = ccpAdd(self.position, ccp(5, 0));        // s = 速度 * 时间    CGPoint deltaS = ccpMult(_velocity, delta);        // 更改位置    self.position = ccpAdd(self.position, deltaS);}@end

主场景

////  HelloWorldScene.h//  31_cocos2D入门////  Created by beyond on 14-9-5.//  Copyright com.beyond 2014年. All rights reserved.//// Importing cocos2d.h and cocos2d-ui.h, will import anything you need to start using Cocos2D v3#import "cocos2d.h"#import "cocos2d-ui.h"/** *  主场景 */@interface HelloWorldScene : CCScene+ (HelloWorldScene *)scene;- (id)init;@end

////  HelloWorldScene.m//  31_cocos2D入门////  Created by beyond on 14-9-5.//  Copyright com.beyond 2014年. All rights reserved.//#import "HelloWorldScene.h"#import "IntroScene.h"#import "CCAnimation.h"// 子弹#import "Bullet.h"@implementation HelloWorldScene{    CCSprite *_sprite;}#pragma mark - 生命周期+ (HelloWorldScene *)scene{    return [[self alloc] init];}// 在HelloWorldScene中- (id)init{    if (!(self = [super init]) ) return(nil);        // 1、场景Node 允许交互    self.userInteractionEnabled = YES;        // 2、创建背景颜色为深灰色    CCNodeColor *background = [CCNodeColor nodeWithColor:[CCColor colorWithRed:0.2f green:0.2f blue:0.2f alpha:1.0f]];    [self addChild:background];        // 3、添加一个精灵，并居中    [self addSpriteInCenter];        // 4、右上方,创建一个返回按钮,点击后,返回至上一个场景    [self addBtnOnTopRight];        // 5、重要，开启消息调用    // [self schedule:@selector(update:) interval:0];        // 返回创建好的场景对象return self;}#pragma mark - Enter & Exit//- (void)onEnter{    // 必须总是先调用父类的onEnter方法    [super onEnter];        // In pre-v3, touch enable and scheduleUpdate was called here    // In v3, touch is enabled by setting userInteractionEnabled for the individual nodes    // Per frame update is automatically enabled, if update is overridden    }- (void)onExit{    // 必须总是 最后才调用父类的onExit方法    [super onExit];}#pragma mark - 触摸事件// 用户触摸屏幕,精灵跟随手指移动-(void) touchBegan:(UITouch *)touch withEvent:(UIEvent *)event {    CGPoint touchLoc = [touch locationInNode:self];        // 输出触摸点的坐标    CCLOG(@"Move sprite to @ %@",NSStringFromCGPoint(touchLoc));        // 移动精灵到触摸点处 To表示绝对  By表示相对    //CCActionMoveTo *actionMove = [CCActionMoveTo actionWithDuration:1.0f position:touchLoc];    // 调用精灵的runAction方法执行动作    //[_sprite runAction:actionMove];}// 手抬起处就放一颗bullet,并且让子弹 射出去,并且进行碰撞检测- (void)touchEnded:(UITouch *)touch withEvent:(UIEvent *)event{    // 得到触摸点    CGPoint touchLoc = [touch locationInNode:self];            Bullet *bullet = [Bullet spriteWithImageNamed:@"bullet.png"];    bullet.name = @"bullet";    // 设置 子弹出现的位置    bullet.position = touchLoc;    // 设置 子弹的速度    bullet.velocity = ccp(500, CCRANDOM_MINUS1_1() * 300);    [self addChild:bullet];}// 在场景的消息调度里面,进行碰撞检测- (void)update:(CCTime)delta{    [self boundaryCheck];}- (void)boundaryCheck{        for (int i = 0; i<self.children.count;i++) {        CCSprite *child = [self.children objectAtIndex:i];        // 子弹        if ([child.name isEqualToString:@"bullet"]) {                        // 1.往右边飞            //            CGPoint pos = child.position;            //            pos.x += 5;            //            child.position = pos;                        // 2.跟人的碰撞检测            // CCSprite *person = (CCSprite *)[self getChildByName:@"nana" recursively:YES];            if ( CGRectIntersectsRect(child.boundingBox, _sprite.boundingBox) )            {                // 移除子弹                [child removeFromParentAndCleanup:YES];                CCLOG(@"碰到了人");                _sprite.opacity = _sprite.opacity*0.8;                if (_sprite.opacity < 0.05) {                    _sprite.position = ccp(-10,-10);                }            } else if ( !CGRectContainsRect(self.boundingBox, child.boundingBox) ) {                // 移除子弹                [child removeFromParentAndCleanup:YES];                CCLOG(@"离开了屏幕");            }        }    }    }#pragma mark - 按钮点击事件- (void)onBackClicked:(id)sender{    // 使用转场动画,切换场景至 IntroScene    [[CCDirector sharedDirector] replaceScene:[IntroScene scene]                               withTransition:[CCTransition transitionPushWithDirection:CCTransitionDirectionRight duration:1.0f]];}#pragma mark - 私有方法// 右上方,创建一个返回按钮,点击后,返回至上一个场景- (void)addBtnOnTopRight{    // 5、右上方,创建一个返回按钮,点击后,返回至上一个场景    CCButton *backButton = [CCButton buttonWithTitle:@"[ Back ]" fontName:@"Verdana-Bold" fontSize:18.0f];    backButton.positionType = CCPositionTypeNormalized;    // 屏幕的右上方 注意这里是笛卡尔坐标系,原点在左下方    backButton.position = ccp(0.85f, 0.95f);    // 监听点击事件    [backButton setTarget:self selector:@selector(onBackClicked:)];    [self addChild:backButton];}// 添加一个精灵,并设置位置居中- (void)addSpriteInCenter{    // 3、添加一个精灵,并设置位置居中  ColorCircle    _sprite = [CCSprite spriteWithImageNamed:@"nana_logo.png"];    _sprite.name = @"nana";        //NSString *fullPath = [[NSBundle mainBundle] pathForResource:@"nana_logo.png" ofType:nil];        //_sprite = [CCSprite spriteWithTexture:[CCTexture textureWithFile:fullPath ] rect:CGRectMake(0, 0, 112, 112) ];        //_sprite.position  = ccp(self.contentSize.width/2,self.contentSize.height/2);    _sprite.position  = ccp(self.contentSize.width*0.85,self.contentSize.height/2);        [self addChild:_sprite];}// 为精灵创建一个旋转动作- (void)addRotateAction{    // 4、为精灵创建一个旋转动作,并且调用精灵的runAction方法,重复执行动作    CCActionRotateBy* actionSpin = [CCActionRotateBy actionWithDuration:1.5f angle:360];    [_sprite runAction:[CCActionRepeatForever actionWithAction:actionSpin]];}// 测试sprite属性- (void)testCCSprite{    _sprite.opacity = 125;    //_sprite.color = [UIColor redColor];//ccc3(255, 0, 0);    _sprite.color = [CCColor colorWithRed:1.0f green:0.2f blue:0.2f alpha:1.0f];    _sprite.flipX = YES;    _sprite.flipY = YES;            CCAction *action = [CCActionCallFunc actionWithTarget:self selector:@selector(go:)];    [_sprite runAction:action];}// 播放帧动画【赵云】- (void)playFrameAnimatiton{    // 创建精灵,并居中【千万要记得addChild】    _sprite = [CCSprite spriteWithImageNamed:@"1.png"];    _sprite.position  = ccp(self.contentSize.width/2,self.contentSize.height/2);    // 用来存放所有的帧    NSMutableArray *frames = [NSMutableArray array];    // 加载所有的图片    for (int i = 1; i<= 10; i++) {        // 1、拼接图片名        NSString *name = [NSString stringWithFormat:@"%i.png", i];        // 2、根据图片名（或全路径）生成纹理，一个图片对应一个纹理对象        CCTexture *texture = [CCTexture textureWithFile:name];        CGRect retct = CGRectMake(0, 0, texture.contentSize.width, texture.contentSize.height);        // 3、根据纹理创建一个精灵帧        CCSpriteFrame *frame = [[CCSpriteFrame alloc]initWithTexture:texture rectInPixels:retct rotated:NO offset:ccp(0, 0) originalSize:retct.size];        // 4、添加精灵帧 到 精灵帧数组中        [frames addObject:frame];    }    // 根据【精灵帧数组】创建CCAnimation，参数：每隔0.1秒播放下一张图片    CCAnimation *animation = [CCAnimation animationWithSpriteFrames:frames delay:0.1];        // 根据CCAnimation对象 创建 动作    CCActionAnimate *animate = [CCActionAnimate actionWithAnimation:animation];    CCActionRepeatForever *forever = [CCActionRepeatForever actionWithAction:animate];    [_sprite runAction:forever];    // 重要~~~必须成为场景的子Node    [self addChild:_sprite];}@end

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