#include <GL/glut.h>

void render(void)
{
    //house
    glClear(GL_COLOR_BUFFER_BIT);
    glBegin(GL_POLYGON);
    glColor3f(1, 0, 0);
    glVertex2f(-0.4, 0.4);
    glVertex2f(0.4, 0.4);
    glVertex2f(0.4, -0.4);
    glVertex2f(-0.4, -0.4);
    glEnd();

    //right window
    glBegin(GL_POLYGON);
    glColor3f(0, 0, 1);
    glVertex2f(0.3, 0.3);
    glVertex2f(0.2, 0.3);
    glVertex2f(0.2, 0.2);
    glVertex2f(0.3, 0.2);
    glEnd();

    //left window
    glBegin(GL_POLYGON);
    glColor3f(0, 0, 1);
    glVertex2f(-0.3, 0.3);
    glVertex2f(-0.2, 0.3);
    glVertex2f(-0.2, 0.2);
    glVertex2f(-0.3, 0.2);
    glEnd();

    //door
    glBegin(GL_POLYGON);
    glColor3f(0, 1, 1);
    glVertex2f(-0.1, -0.4);
    glVertex2f(0.1, -0.4);
    glVertex2f(0.1, 0.0);
    glVertex2f(-0.1, 0.0);
    glEnd();

    //path strip 1
    glBegin(GL_POLYGON);
    glColor3f(0, 1, 0);
    glVertex2f(-0.1, -0.4);
    glVertex2f(0.1, -0.4);
    glVertex2f(-0.1, -0.5);
    glVertex2f(-0.3, -0.5);
    glEnd();

    //path strip 2
    glBegin(GL_POLYGON);
    glColor3f(0, 0, 1);
    glVertex2f(-0.3, -0.5);
    glVertex2f(-0.1, -0.5);
    glVertex2f(-0.3, -0.6);
    glVertex2f(-0.5, -0.6);
    glEnd();

    //path strip 3
    glBegin(GL_POLYGON);
    glColor3f(1, 0, 1);
    glVertex2f(-0.5, -0.6);
    glVertex2f(-0.3, -0.6);
    glVertex2f(-0.5, -0.7);
    glVertex2f(-0.7, -0.7);
    glEnd();

    //roof
    glBegin(GL_TRIANGLES);
    glColor3f(0, 1, 0);
    glVertex2f(0.4, 0.4);
    glVertex2f(-0.4, 0.4);
    glVertex2f(0.0, 0.8);
    glEnd();
    glFlush();
}

int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE);
    glutInitWindowSize(1000, 1000);
    glutInitWindowPosition(100, 100);
    glutCreateWindow("House");
    glutDisplayFunc(render);
    glutMainLoop();
    return 0;
}