cocos2d-x简单绘图(DrawNode)

DrawNode简单绘图示例如下：
DrawNode* drawNode=DrawNode::create();

//绘制空心4边形和直线
Vec2 point[4];
point[0] = Vec2(100, 100);
point[1] = Vec2(100, 200);
point[2] = Vec2(200, 200);
point[3] = Vec2(200, 100);
drawNode->drawPolygon(point,4,Color4F::BLUE,5,Color4F::RED);

drawNode->drawLine(Point(100,220),Point(300,220),Color4F::GRAY);

this->addChild(drawNode);

drawNode.drawCardinalSpline(config, tension, segments, lineWidth, color)

//曲线 参数说明: //congfig:点数组 //tension:张力 //segments:段落 //lineWidth:线条宽度 //color:颜色

drawNode.drawCatmullRom(points, segments, lineWidth, color)

//同上

drawNode.drawCircle(center, radius, angle, segments, drawLineToCenter, lineWidth, color)

//画圆 //参数说明: 原点，半径，弧度，分段(越大越接近圆)，原点到弧度的线(boolean)，线条宽度，颜色

drawNode.drawCubicBezier(origin, control1, control2, destination, segments, lineWidth, color)

//画三次贝塞尔曲线 //

drawNode.drawCubicBezier(cc.p(s.width - 250, 40), cc.p(s.width - 70, 100), cc.p(s.width - 30, 250), cc.p(s.width - 10, s.height - 50),10,1, cc.color(0, 1, 0, 1)); drawNode.drawQuadBezier(origin, control, destination, segments, lineWidth, color)

//画二次贝塞尔曲线 参考三次贝塞尔曲线

drawNode.drawDot(pos, radius, color)

//画点 //

drawNode.drawDot(cc.p(60, 100), 20, cc.color(0.5,0.6,0,1)); drawNode.drawDots(points, radius, color)

//画点 points 点数组

drawNode.drawPoly(verts, fillColor, lineWidth, color)

//画多边形

drawNode.drawRect(origin, destination, fillColor, lineWidth, lineColor)

//画矩形

drawNode.drawSegment(from, to, lineWidth, color)

//画线段