parameterizedHouse.txt

#include<Windows.h>
#include<gl/GL.h>
#include<gl/glu.h>
#include<gl/glut.h>


void myInit(void)
{
	glClearColor(1.0, 1.0, 1.0, 0.0); // set the background to white
	glColor3f(0.0f, 0.0f, 0.0f); // set the drawing color to black
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	gluOrtho2D(0.0, 640.0, 0.0, 480.0);
}


void parameterizedHouse(POINT peak, GLint width, GLint height) {
	glBegin(GL_LINE_LOOP);
	glVertex2i(peak.x, peak.y); // draw the shell of the house
	glVertex2i(peak.x + width / 2, peak.y - 3 * height / 8);//topRight
	glVertex2i(peak.x + width / 2, peak.y - height);//downRight
	glVertex2i(peak.x - width / 2, peak.y - height);//downLeft
	glVertex2i(peak.x - width / 2, peak.y - 3 * height / 8);//topLeft
	glVertex2i(peak.x - width / 3, peak.y - 10 * height / 40);//left...
	glVertex2i(peak.x - width / 3, peak.y + height / 6);//downLeft...
	glVertex2i(peak.x - width / 6, peak.y + height / 6);//downRight...
	glVertex2i(peak.x - width / 6, peak.y - 10 * height / 80);//right...
	glEnd();

	glBegin(GL_LINE_LOOP); //draw the door
	glVertex2i(peak.x - width / 10, peak.y - height );//downRight
	glVertex2i(peak.x - width / 10, peak.y - 10 * height / 20);
	glVertex2i(peak.x - width / 3, peak.y - 10 * height / 20);
	glVertex2i(peak.x - width / 3, peak.y - height);//downLeft
	glEnd();

	glBegin(GL_LINE_LOOP); //draw the windows
	glVertex2i(peak.x + width / 10, peak.y - height / 3);//downRight
	glVertex2i(peak.x + width / 10, peak.y - 10 * height / 20);
	glVertex2i(peak.x + width / 3, peak.y - 10 * height / 20);
	glVertex2i(peak.x + width / 3, peak.y - height / 3);//downLeft
	glEnd();

}


void mouse(int bin, int state, int x, int y) {
	if (bin == GLUT_LEFT_BUTTON && state == GLUT_DOWN) {
		POINT p;
		p.x = x;
		p.y = 480.0 - y;
		
		glClear(GL_COLOR_BUFFER_BIT);
		parameterizedHouse(p, 250, 250);
		glFlush();
	}
}


void main(int argc, char** argv)
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
	glutInitWindowSize(640, 480);
	glutInitWindowPosition(300, 100);
	glutCreateWindow("House");
	glutMouseFunc(mouse);
	myInit();
	glutMainLoop();
}