cocos2d-x-3.0 draw vs onDraw

Question

I\'m using cocos2d-x v3.0 and in some test project I\'m doing some custom drawing by overriding Node\'s draw method, but in the DrawPrimitives exam

Answer 1

There is sample on cocos2d-x RC0 package that shows how to use the DrawPrimitives on top of other layers.

On your Layer .h add the following:

private:
    void onDrawPrimitives(const kmMat4 &transform, bool transformUpdated);
    CustomCommand _customCommand;

Now in the cpp of the Layer, override the layer draw method and include the onDrawPrimitives method:

void MyLayer::onDrawPrimitives(const kmMat4 &transform, bool transformUpdated)
{
    kmGLPushMatrix();
    kmGLLoadMatrix(&transform);

    //add your primitive drawing code here
    DrawPrimitives::drawLine(ccp(0,0), ccp(100, 100));
}

void MyLayer::draw(Renderer *renderer, const kmMat4& transform, bool transformUpdated)
{
    _customCommand.init(_globalZOrder);
    _customCommand.func = CC_CALLBACK_0(MyLayer::onDrawPrimitives, this, transform, transformUpdated);
    renderer->addCommand(&_customCommand);
}