cocos2d-x簡單繪圖(DrawNode)

DrawNode簡單繪圖示例如下：

 DrawNode* drawNode=DrawNode::create();

    //繪制空心4邊形和直線    

    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)   

//曲線 參數說明: //congfig:點數組 //tension:張力 //segments:段落 //lineWidth:線條寬度 //color:顔色   

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

//同上   

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

//畫圓 //參數說明: 原點，半徑，弧度，分段(越大越接近圓)，原點到弧度的線(boolean)，線條寬度，顔色   

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

//畫三次貝塞爾曲線 //

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)         

//畫二次貝塞爾曲線 參考三次貝塞爾曲線

drawNode.drawDot(pos, radius, color)        

//畫點 //

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

//畫點  points  點數組   

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

//畫多邊形

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

//畫矩形

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

//畫線段