Nonlinear Animation Ex. for or Adv. Animation Studio, HW

sphereCycle.cpp

#include "cinder/app/AppBasic.h"
#include "cinder/gl/gl.h"

using namespace ci;
using namespace ci::app;
using namespace std;

class sphereCycleApp : public AppBasic {
  public:
	void prepareSettings( Settings *settings );
    void setup();
	void mouseDown( MouseEvent event );	
	void update();
	void draw();
    
    int radius;
};

void sphereCycleApp::prepareSettings( Settings *settings )
{
	settings->setWindowSize( 512, 384 );
	settings->setFrameRate( 60.0f );
	settings->setFullScreen( false );
}

void sphereCycleApp::setup()
{
    radius = 100;
}

void sphereCycleApp::mouseDown( MouseEvent event )
{
}

void sphereCycleApp::update()
{
}

void sphereCycleApp::draw()
{
	// clear out the window with black
	gl::clear( Color( 0, 0, 0 ) ); 
    
    
    float s = 0;
    float t = 0;
    float lastx = 0;
    float lasty = 0;
    float lastz = 0;
    
    while(t < 180) {
        s += 18;
        t += 1;
        float radianS = toRadians(s);
        float radianT = toRadians(t);
        
        float thisx = 0 + (radius * cos(radianS) * sin(radianT));
        float thisy = 0 + (radius * sin(radianS) * sin(radianT));
        float thisz = 0 + (radius * cos(radianT));
        
        if (lastx != 0) {
            glColor3f(1, 1, 1);
            
            gl::pushMatrices();
                gl::translate(Vec2f(getWindowWidth()/2, getWindowHeight()/2));
                gl::rotate( Vec3f(getElapsedFrames()*0.09, getElapsedFrames()*0.04, 0) );
                gl::drawLine(Vec3f(thisx, thisy, thisz), Vec3f(lastx, lasty, lastz));
            gl::popMatrices();
        }
        
        lastx = thisx;
        lasty = thisy;
        lastz = thisz;
    }
    
}


CINDER_APP_BASIC( sphereCycleApp, RendererGl )