Cocos2D菜单相关教程

来源：互联网发布：excel 将矩阵转化为列编辑：程序博客网时间：2024/05/09 14:19

最近在研究COCOS2D的菜单，目前我的菜单主要是用于场景的切换。下面是我总结的几点用法。

简单的文本菜单示例（代码加到初始化方法里面）：

-(id)init{    if (self = [super initWithColor:ccc4(255, 255, 255, 255)])    {        [CCMenuItemFont setFontName:@"Helvetica"];        [CCMenuItemFont setFontSize:30];                CCMenuItem * start = [CCMenuItemFont itemWithString:@"Start Game" target:self selector:@selector(start:)];        CCMenuItem * score = [CCMenuItemFont itemWithString:@"Score" target:self selector:@selector(score:)];        CCMenuItem * about = [CCMenuItemFont itemWithString:@"About" target:self selector:@selector(about:)];                CCMenu * menu = [CCMenu menuWithItems:start, score, about, nil];        [menu alignItemsVertically];//菜单居中        [menu setColor:ccc3(0, 0, 0)];//设置菜单字体为黑色        [self addChild:menu];            }    return self;}

菜单出现的飞出动画效果实现：

for(CCNode * child in [menu children]) //快速枚举菜单孩子        {            CGPoint destinationPoint = child.position; //获取菜单的目的地点坐标            child.position = ccp(50, destinationPoint.y);            [child runAction:[CCEaseElasticOut actionWithAction:[CCMoveTo actionWithDuration:5 position:CGPointMake(destinationPoint.x, destinationPoint.y)]]];        }

制作精灵菜单：

CCSprite * startMenuNormal = [CCSprite spriteWithFile:@"Button1.png"];        CCSprite * startMenuSelected = [CCSprite spriteWithFile:@"Button1Sel.png"];        CCMenuItem * start = [CCMenuItemSprite itemWithNormalSprite:startMenuNormal selectedSprite:startMenuSelected target:self selector:@selector(start:)];

下面是集中菜单形式的用法：

GSize size = [[CCDirector sharedDirector] winSize];   // set CCMenuItemFont default properties   [CCMenuItemFont setFontName:@"Helvetica-BoldOblique"];   [CCMenuItemFont setFontSize:26];     // 直接用文本当菜单项，CCMenuItemFont简单地创建了一个CCLabel，如果你已经有一个CCLabel，可以使用CCMenuItemLabel类   CCMenuItemFont* item1 = [CCMenuItemFont itemFromString:@"Go Back!" target:self   selector:@selector(menuItem1Touched:)];     // 用图像创建，可以用CCMenuItemImage或者CCSprite（如下），后者的优点在于你可以用同一幅图，仅靠着不同色来达到高亮效果   CCSprite* normal = [CCSprite spriteWithFile:@"Icon.png"];   normal.color = ccRED;   CCSprite* selected = [CCSprite spriteWithFile:@"Icon.png"];   selected.color = ccGREEN;   CCMenuItemSprite* item2 = [CCMenuItemSprite itemFromNormalSprite:normal selectedSprite:selected    target:self selector:@selector(menuItem2Touched:)];      // 用开关（CCMenuItemToggle）创建菜单项，可以用文本标签或者图像都可   [CCMenuItemFont setFontName:@"STHeitiJ-Light"];   [CCMenuItemFont setFontSize:18];   CCMenuItemFont* toggleOn = [CCMenuItemFont itemFromString:@"I'm ON!"];   CCMenuItemFont* toggleOff = [CCMenuItemFont itemFromString:@"I'm OFF!"];   CCMenuItemToggle* item3 = [CCMenuItemToggle itemWithTarget:self selector:@selector(menuItem3Touched:) items:toggleOn, toggleOff, nil];      // 创建菜单  .CCMenu* menu = [CCMenu menuWithItems:item1, item2, item3, nil];  menu.position = CGPointMake(size.width / 2, size.height / 2);   [self addChild:menu];      // 把菜单项排列起来   [menu alignItemsVerticallyWithPadding:40];