Iphone 在cocos2D中创建形状图层

在我的UIkit应用程序中，我使用了以下代码：

boxPath = CGPathCreateMutable();

CGPathMoveToPoint(boxPath, nil, center.x , center.y - 35);
CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y - 35, center.x + 35, center.y + 35, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y + 35, center.x - 35, center.y + 35, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y + 35, center.x - 35, center.y, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y - 35, center.x, center.y - 35, 4.7);

CGPathCloseSubpath(boxPath);

---

为了创建一个形状，我画了一个精确形状的图层。我怎样才能在cocos2D中做同样的事情？非常感谢。对不起，我的英语是法语：//

您需要做的是将该路径绘制到

CGContext

并将生成的图像设置为

CCSprite

：

CGSize size = CGSizeMake(width, height); // width and height should be predefined
CGPoint center = CGPointMake(size.width/2, size.height/2); // change this to change where the shape is positioned inside the image (normally will be this value)
UIGraphicsBeginImageContextWithOptions(size, NO, 0);

CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, 1); // Replace 1 with your desired line width
CGContextSetRGBStrokeColor(context, 0.0, 0.0, 0.0, 1.0); // Change RGBA values if needed

CGMutablePathRef boxPath = CGPathCreateMutable();

CGPathMoveToPoint(boxPath, nil, center.x , center.y - 35);
CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y - 35, center.x + 35, center.y + 35, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y + 35, center.x - 35, center.y + 35, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y + 35, center.x - 35, center.y, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y - 35, center.x, center.y - 35, 4.7);

CGPathCloseSubpath(boxPath);

CGContextAddPath(context, boxPath);
CGContextStrokePath(context);

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
CCTexture2D *texture = [[CCTexture2D alloc] initWithImage:image];
CCSprite *sprite = [CCSprite spriteWithTexture:texture];
[texture release];

[self addChild:sprite];

---

您需要做的是将该路径绘制到

CGContext

并将结果图像设置为

CCSprite

：

CGSize size = CGSizeMake(width, height); // width and height should be predefined
CGPoint center = CGPointMake(size.width/2, size.height/2); // change this to change where the shape is positioned inside the image (normally will be this value)
UIGraphicsBeginImageContextWithOptions(size, NO, 0);

CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, 1); // Replace 1 with your desired line width
CGContextSetRGBStrokeColor(context, 0.0, 0.0, 0.0, 1.0); // Change RGBA values if needed

CGMutablePathRef boxPath = CGPathCreateMutable();

CGPathMoveToPoint(boxPath, nil, center.x , center.y - 35);
CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y - 35, center.x + 35, center.y + 35, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y + 35, center.x - 35, center.y + 35, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y + 35, center.x - 35, center.y, 4.7);
CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y - 35, center.x, center.y - 35, 4.7);

CGPathCloseSubpath(boxPath);

CGContextAddPath(context, boxPath);
CGContextStrokePath(context);

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
CCTexture2D *texture = [[CCTexture2D alloc] initWithImage:image];
CCSprite *sprite = [CCSprite spriteWithTexture:texture];
[texture release];

[self addChild:sprite];

---

请问我如何定义宽度和高度？很快，但我对cocos2D

CGFloat width=45；//无论您想要什么

和

CGContextSetRGBStrokeColor（上下文，0.0,0.0,1.0）将其设置为纯黑色。我有一些错误：在某些内容中请求成员中心，并且在这行代码的纹理之前函数“CGContextAddPath和expected]的参数太少：CCSprite*sprite=[CCSprite spriteWithTexture]；抱歉，屏幕上没有显示任何内容，我有警告：/n您在xcode上尝试过吗？你会明白我的问题。我有这样的警告：传递'CGPathMoveToPoint'的参数1会丢弃指针目标类型的限定符。我如何定义宽度和高度？很快，但我对cocos2D
CGFloat width=45；//无论您想要什么
和
CGContextSetRGBStrokeColor（上下文，0.0,0.0,1.0）将其设置为纯黑色。我有一些错误：在某些内容中请求成员中心，并且在这行代码的纹理之前函数“CGContextAddPath和expected]的参数太少：CCSprite*sprite=[CCSprite spriteWithTexture]；抱歉，屏幕上没有显示任何内容，我有警告：/n您在xcode上尝试过吗？你会明白我的问题。我有如下警告：传递'CGPathMoveToPoint'的参数1将丢弃指针目标类型的限定符