axmol/samples/testsCpp/classes/DrawPrimitivesTest/DrawPrimitivesTest.cpp

119 lines
3.2 KiB
C++

#include "DrawPrimitivesTest.h"
DrawPrimitivesTest::DrawPrimitivesTest()
{
}
void DrawPrimitivesTest::draw()
{
CCSize s = CCDirector::sharedDirector()->getWinSize();
CHECK_GL_ERROR_DEBUG();
// 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( ccp(0, 0), ccp(s.width, s.height) );
CHECK_GL_ERROR_DEBUG();
// 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 );
ccDrawColor4B(255,0,0,255);
ccDrawLine( ccp(0, s.height), ccp(s.width, 0) );
CHECK_GL_ERROR_DEBUG();
// 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
ccPointSize(64);
ccDrawColor4B(0,0,255,128);
ccDrawPoint( ccp(s.width / 2, s.height / 2) );
CHECK_GL_ERROR_DEBUG();
// draw 4 small points
CCPoint points[] = { ccp(60,60), ccp(70,70), ccp(60,70), ccp(70,60) };
ccPointSize(4);
ccDrawColor4B(0,255,255,255);
ccDrawPoints( points, 4);
CHECK_GL_ERROR_DEBUG();
// draw a green circle with 10 segments
glLineWidth(16);
ccDrawColor4B(0, 255, 0, 255);
ccDrawCircle( ccp(s.width/2, s.height/2), 100, 0, 10, false);
CHECK_GL_ERROR_DEBUG();
// draw a green circle with 50 segments with line to center
glLineWidth(2);
ccDrawColor4B(0, 255, 255, 255);
ccDrawCircle( ccp(s.width/2, s.height/2), 50, CC_DEGREES_TO_RADIANS(90), 50, true);
CHECK_GL_ERROR_DEBUG();
// open yellow poly
ccDrawColor4B(255, 255, 0, 255);
glLineWidth(10);
CCPoint vertices[] = { ccp(0,0), ccp(50,50), ccp(100,50), ccp(100,100), ccp(50,100) };
ccDrawPoly( vertices, 5, false);
CHECK_GL_ERROR_DEBUG();
// filled poly
glLineWidth(1);
CCPoint filledVertices[] = { ccp(0,120), ccp(50,120), ccp(50,170), ccp(25,200), ccp(0,170) };
ccDrawSolidPoly(filledVertices, 5, ccc4f(0.5f, 0.5f, 1, 1 ) );
// closed purble poly
ccDrawColor4B(255, 0, 255, 255);
glLineWidth(2);
CCPoint vertices2[] = { ccp(30,130), ccp(30,230), ccp(50,200) };
ccDrawPoly( vertices2, 3, true);
CHECK_GL_ERROR_DEBUG();
// draw quad bezier path
ccDrawQuadBezier(ccp(0,s.height), ccp(s.width/2,s.height/2), ccp(s.width,s.height), 50);
CHECK_GL_ERROR_DEBUG();
// draw cubic bezier path
ccDrawCubicBezier(ccp(s.width/2, s.height/2), ccp(s.width/2+30,s.height/2+50), ccp(s.width/2+60,s.height/2-50),ccp(s.width, s.height/2),100);
CHECK_GL_ERROR_DEBUG();
//draw a solid polygon
CCPoint vertices3[] = {ccp(60,160), ccp(70,190), ccp(100,190), ccp(90,160)};
ccDrawSolidPoly( vertices3, 4, ccc4f(1,1,0,1) );
// restore original values
glLineWidth(1);
ccDrawColor4B(255,255,255,255);
ccPointSize(1);
CHECK_GL_ERROR_DEBUG();
}
void DrawPrimitivesTestScene::runThisTest()
{
CCLayer* pLayer = new DrawPrimitivesTest();
addChild(pLayer);
pLayer->release();
CCDirector::sharedDirector()->replaceScene(this);
}