#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include <GL/glut.h>
#include<stdafx.h>

void gasket();
void myinit()
{
      glClearColor(1.0, 1.0, 1.0, 1.0);
      glColor3f(1.0, 1.0, 0.0);
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      gluOrtho2D(-10.0, 10.0, -10.0, 10.0);
      glMatrixMode(GL_MODELVIEW);
}


void draw( void )
{
    int r=10;
    GLfloat theta;

    glClear(GL_COLOR_BUFFER_BIT);
        glBegin(GL_POLYGON);
        for(theta=0; theta<=360; theta+=0.01)
     {
      glVertex2f(5*sin(theta*3.142/180), 2*cos(theta*3.142/180));
      }
         glEnd();
     glFlush();
 }


void myMouse(int button, int state, int x,int y)
{
     if(button==GLUT_LEFT_BUTTON && state==GLUT_DOWN)
     {
     draw();

     }
     else if(button==GLUT_RIGHT_BUTTON && state==GLUT_DOWN)
     {
     gasket();

     }



}

void gasket()
{
     #include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include <GL/glut.h>
#include<stdafx.h>

void gasket();
void myinit()
{
      glClearColor(1.0, 1.0, 1.0, 1.0);
      glColor3f(1.0, 0.0, 0.0);
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      gluOrtho2D(-10.0, 10.0, -10.0, 10.0);
      glMatrixMode(GL_MODELVIEW);
}



void draw( void )
{
    int r=10;
    GLfloat theta;

    glClear(GL_COLOR_BUFFER_BIT);
        glBegin(GL_POLYGON);
        for(theta=0; theta<=360; theta+=0.01)
     {
      glVertex2f(5*sin(theta*3.142/180), 2*cos(theta*3.142/180));
      }
         glEnd();
     glFlush();
 }


void myMouse(int button, int state, int x,int y)
{
     if(button==GLUT_LEFT_BUTTON && state==GLUT_DOWN)
     {
     draw();

     }
     else if(button==GLUT_RIGHT_BUTTON && state==GLUT_DOWN)
     {
     gasket();

     }



}

void gasket()
{
     GLfloat v[3][2] = {{1.0, 1.0}, {6.0, 1.0}, {3.5, 5.5}};
     int j, i;

     glClear(GL_COLOR_BUFFER_BIT);
     glBegin(GL_POINTS);
     for(i=0; i<50000; i++)
     {
              j=rand()%3;
              p[0]=(p[0] + v[j][0])/2.0;
              p[1]=(p[1] + v[j][1])/2.0;

              glVertex2fv(p);
     }
     glEnd();
     glFlush();
}




void display( void )
{

    glClear(GL_COLOR_BUFFER_BIT);
    glFlush();
 }



int main(int argc, char** argv)
{



    glutInit(&argc,argv);
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(500,500);
    glutInitWindowPosition(0,0);
    glutCreateWindow("Mouse");
    glutDisplayFunc(display);
    glutMouseFunc(myMouse);
    myinit();
    glutMainLoop();
    return 0;
}




void display( void )
{

    glClear(GL_COLOR_BUFFER_BIT);
    glFlush();
 }



int main(int argc, char** argv)
{



    glutInit(&argc,argv);
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(500,500);
    glutInitWindowPosition(0,0);
    glutCreateWindow("Mouse");
    glutDisplayFunc(display);
    glutMouseFunc(myMouse);
    myinit();
    glutMainLoop();
    return 0;
}