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我在我的游戏中自定义调试绘制物理形状。在我升级到 cocos2d 2.0、iOS 5 后，我遇到了一些错误，表明我需要替换 cccolor4f、glpushmatrix 等。但我找不到 glscalef 功能的替代品。我在此函数调用中遇到错误。

这是我的代码：

   [super draw];

   kmGLPushMatrix();
{

   // No idea what will replace this one
  //    glScalef(PTM_RATIO, PTM_RATIO,0.f);

  ccDrawColor4F(0.f, 1.f, 0.f, 1.f);

  [physicsshapeobject debugdraw]; // This calls the function below for different shapes

 }
    kmGLPopMatrix();

 ccDrawColor4F(1.f, 1.f, 0.f, 1.f);
 ccPointSize(10.f);
 //drawPoint(collisionAt_);
 ccPointSize(1.f);
 }

 -(void) debugDraw{

if(polygonShape != NULL){

CGPoint boxPt = ccpFromB2Vec(shapeTransform->p, NO);

CGPoint p1 = ccpAdd(boxPt,ccpFromB2Vec(polygonShape->m_vertices[0], NO));
CGPoint p2 = ccpAdd(boxPt,ccpFromB2Vec(polygonShape->m_vertices[1], NO));
CGPoint p3 = ccpAdd(boxPt,ccpFromB2Vec(polygonShape->m_vertices[2], NO));
CGPoint p4 = ccpAdd(boxPt,ccpFromB2Vec(polygonShape->m_vertices[3], NO));
ccVertex2F v1;
ccVertex2F v2;
ccVertex2F v3;
ccVertex2F v4;

v1.x = p1.x;
v1.y = p1.y;

v2.x = p2.x;
v2.y = p2.y;

v3.x = p3.x;
v3.y = p3.y;

v4.x = p4.x;
v4.y = p4.y;

ccQuad2 quad = (ccQuad2){
  v1,
  v2,
  v3,
  v4,
};
ccDrawColor4F(1.f, 0.f, 0.f, 1.f);
ccDrawPoly((CGPoint*)&quad, 4, YES);

}
 }

形状不绘制的原因可能是什么？cocos2d 2.0中glscalef的替代品是什么？

任何帮助表示赞赏！

谢谢

4

1 回答 1

1

现在 Cocos2D 3.0 与 Chipmunk2D 物理引擎深度集成。因此，如果您使用默认值CCPhysicsNode，您可以通过简单地调用来启用调试绘制setDebugDraw：

_physicsWorld = [CCPhysicsNode node];
_physicsWorld.gravity = ccp(0,0);
_physicsWorld.debugDraw = YES;
_physicsWorld.collisionDelegate = self;
[self addChild:_physicsWorld];
于 2014-02-14T11:28:09.173 回答