axmol/test_uphone/tests/DrawPrimitivesTest/DrawPrimitivesTest.cpp

#include "drawPrimitivesTest.h"

DrawPrimitivesTest::DrawPrimitivesTest()
{
}

void DrawPrimitivesTest::draw()
{
	CCLayer::draw();

    CGSize s = CCDirector::getSharedDirector()->getWinSize();
	
	// draw a simple line
	// The default state is:
	// Line Width: 1
	// color: 255,255,255,255 (white, non-transparent)
	// Anti-Aliased
	glEnable(GL_LINE_SMOOTH);
	ccDrawLine( CGPointMake(0, 0), CGPointMake(s.width, s.height) );
	
	// line: color, width, aliased
	// glLineWidth > 1 and GL_LINE_SMOOTH are not compatible
	// GL_SMOOTH_LINE_WIDTH_RANGE = (1,1) on iPhone
	glDisable(GL_LINE_SMOOTH);
	glLineWidth( 5.0f );
	glColor4ub(255,0,0,255);
	ccDrawLine( CGPointMake(0, s.height), CGPointMake(s.width, 0) );

	// TIP:
	// If you are going to use always the same color or width, you don't
	// need to call it before every draw
	//
	// Remember: OpenGL is a state-machine.
	
	// draw big point in the center
	glPointSize(64);
	glColor4ub(0,0,255,128);
	ccDrawPoint( CGPointMake(s.width / 2, s.height / 2) );
	
	// draw 4 small points
	CGPoint points[] = { CGPointMake(60,60), CGPointMake(70,70), CGPointMake(60,70), CGPointMake(70,60) };
	glPointSize(4);
	glColor4ub(0,255,255,255);
	ccDrawPoints( points, 4);
	
	// draw a green circle with 10 segments
	glLineWidth(16);
	glColor4ub(0, 255, 0, 255);
	ccDrawCircle( CGPointMake(s.width/2,  s.height/2), 100, 0, 10, false);

	// draw a green circle with 50 segments with line to center
	glLineWidth(2);
	glColor4ub(0, 255, 255, 255);
	ccDrawCircle( CGPointMake(s.width/2, s.height/2), 50, CC_DEGREES_TO_RADIANS(90), 50, true);	
	
	// open yellow poly
	glColor4ub(255, 255, 0, 255);
	glLineWidth(10);
	CGPoint vertices[] = { CGPointMake(0,0), CGPointMake(50,50), CGPointMake(100,50), CGPointMake(100,100), CGPointMake(50,100) };
	ccDrawPoly( vertices, 5, false);
	
	// closed purble poly
	glColor4ub(255, 0, 255, 255);
	glLineWidth(2);
	CGPoint vertices2[] = { CGPointMake(30,130), CGPointMake(30,230), CGPointMake(50,200) };
	ccDrawPoly( vertices2, 3, true);
	
	// draw quad bezier path
	ccDrawQuadBezier(CGPointMake(0,s.height), CGPointMake(s.width/2,s.height/2), CGPointMake(s.width,s.height), 50);

	// draw cubic bezier path
	ccDrawCubicBezier(CGPointMake(s.width/2, s.height/2), CGPointMake(s.width/2+30,s.height/2+50), CGPointMake(s.width/2+60,s.height/2-50),CGPointMake(s.width, s.height/2),100);

	
	// restore original values
	glLineWidth(1);
	glColor4ub(255,255,255,255);
	glPointSize(1); 
}

void DrawPrimitivesTestScene::runThisTest()
{
    CCLayer* pLayer = new DrawPrimitivesTest();
    addChild(pLayer);

    CCDirector::getSharedDirector()->replaceScene(this);
}