繼承關係
// 創建一個DrawNode
Size visibleSize = Director::getInstance()->getVisibleSize();
DrawNode* drawNode = DrawNode::create();
drawNode->setPosition(Vec2(visibleSize.width * 0.5f,visibleSize.height * 0.5f));
this->addChild(drawNode);
/*
繪製多邊形:
void drawPolygon(const Vec2 *verts, int count, const Color4F &fillColor, float borderWidth, const Color4F &borderColor);
1、verts: 需要繪製的點
2、count: 繪製點的個數
3、fillColor: 填充顏色
4、borderWidth:邊框寬度
5、borderColor:邊框顏色
*/
ccColor4F yellow = { 1, 1, 0, 1 };
Vec2 vecs[4] = { Vec2(-30.0f, 30.0f), Vec2(30.0f, 30.0f), Vec2(30.0f, -30.0f), Vec2(-30.0f, -30.0f) };
drawNode->drawPolygon(vecs, 4, yellow, 1, yellow);
/*
繪製點:drawDot
1、第一個參數爲點的位置
2、第二個參數爲半徑值
3、第三個參數爲填充顏色
*/
drawNode->drawDot(Vec2(100.0f, 0.0f),50.0f, ccc4f(1, 0, 0, 1));
// drawPolygon繪製三角形
Vec2 triangles[3];
triangles[0] = Vec2(0.0f, 50.0f);
triangles[1] = Vec2(200.0f, 50.0f);
triangles[2] = Vec2(0.0f, 200.0f);
drawNode->drawPolygon(triangles, 3, ccc4f(1, 0.5, 1, 0.5), 0, ccc4f(1, 0, 0, 1));