/*
 *  main.cpp
 *  CompFormApp
 *
 */

#include "Shape.h"

bool	mouseClick = true;
float	mouseX = 0;
float	mouseY = 0;
int		windowW = 800;
int		windowH = 600;

#define PI 3.14159265358979

void drawCircle(float radius, int numOfPts, Vec2d center){
	
	Circle circ(radius, numOfPts, center);
	circ.draw();
}

void drawOval(float vRadius, float hRadius, int numOfPts, Vec2d center){
	Oval ov(vRadius, hRadius, numOfPts, center);

	ov.draw();
}

void drawStar(float innerRadius, float outerRadius, int numOfPts, Vec2d center){
	Star star(innerRadius, outerRadius, numOfPts, center);

	star.draw(GL_LINE_LOOP);
}

void drawScreen() {
	
	if (mouseClick) {

		int numOfStars = 100;

		Vec2d center(10, 400);

		for (int starNum = 0; starNum < numOfStars; starNum++) {
			glColor3f(((float)(rand() % 10)) * .1, ((float)(rand() % 10)) * .1,
					((float)(rand() % 10)) * .1);

			int inner = rand() % 50;
			int outer = rand() % 50;

			center.x = rand() % windowW;
			center.y = rand() % windowW;

			drawStar(inner, outer, rand() % 30+ 10, center);
		}
	}
}

void displayFunc ( void )
{
	glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	// place your drawing code here
	drawScreen();

	printf("displayFunc: %i\n", mouseClick);

	glutPostRedisplay();
	glutSwapBuffers();
}


void reshapeFunc ( int w, int h )
{
	windowW = w;
	windowH = h;

	glViewport( 0, 0, w, h );
	glMatrixMode( GL_PROJECTION );
	glLoadIdentity();
	gluOrtho2D( 0,w,0,h );

	glMatrixMode( GL_MODELVIEW );
	glLoadIdentity();
}


void mouseDownFunc ( int button, int state, int x, int y )
{
	mouseClick = !mouseClick;

	printf("mouseClick: %i\n", mouseClick);

	mouseX = x;
	mouseY = windowH - y;
}


void mouseMoveFunc ( int x, int y )
{
	mouseX = x;
	mouseY = windowH - y;
}


void mouseDragFunc ( int x, int y )
{
	mouseX = x;
	mouseY = windowH - y;
}


void keyboardFunc ( unsigned char key, int x, int y )
{
}


void arrowKeyFunc ( int a_keys, int x, int y )
{
}


void init ( GLvoid )
{
	glShadeModel( GL_SMOOTH );
	glClearColor( 1.0, 1.0, 1.0, 1.0 );
	glEnable ( GL_COLOR_MATERIAL );
	glEnable( GL_BLEND );
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}

int main ( int argc, char** argv )
{
	
	glutInit( &argc, argv );
	
	glutInitDisplayMode( GLUT_RGBA | GLUT_DOUBLE );
	glutInitWindowSize( windowW, windowH );
	glutCreateWindow( "CompFormApp" );
	glutDisplayFunc( displayFunc );
	glutReshapeFunc( reshapeFunc );
	glutMouseFunc( mouseDownFunc );
	glutMotionFunc( mouseDragFunc );
	glutPassiveMotionFunc( mouseMoveFunc );
	glutKeyboardFunc( keyboardFunc );
	glutSpecialFunc( arrowKeyFunc );
	init();
	
	glutMainLoop( );
  
	return 0;
}