设置颜色

1:最简单的,[objSprite setColor:ccc3(r,g,b)];

2:简单的渐变，要使用CCFadeIn

[objSprite setColor:ccc3(r,g,b)];

[objSprite setPosition:ccp(w,h)];

[objSprite setOpacity:0.0f];

[objSprite runAction:[CCFadeIn actionWithDuration:2.0f]];

3.动态渐变的颜色

CCGradientLayer *gradientLay = [CCGradientLayer layerWithColor:ccc4(r,g,b,a) toColor:ccc4(r,g,b,a) withDirection:CCGradientDirectionT_B width:480 height:100]