main.cpp

#include <GL/glut.h>

#include <stdlib.h>

class vector{
public:
	vector(){
		vector::vector(0.0, 0.0, 0.0);
	}
	vector(GLfloat _x, GLfloat _y, GLfloat _z){
		x = _x;
		y = _y;
		z = _z;
	}
	GLfloat x;
	GLfloat y;
	GLfloat z;

};
class color{
public:
	color(){
		vector::vector(1.0, 1.0, 1.0);
	}
	color(GLfloat _red, GLfloat _green, GLfloat _blue){
		red = _red;
		green = _green;
		blue = _blue;
	}
	GLfloat red;
	GLfloat green;
	GLfloat blue;

};

color COLOR_1(0.0, 1.0, 1.0);
color COLOR_2(1.0, 1.0, 0.0);
color COLOR_3(1.0, .0, 1.0);


GLUquadric* quadric;

void draw_system(double width, double height, double depth){

	GLdouble radius=0.05;

	glPushMatrix();

	glColor3f(1.0, 0.0, 0.0);
	gluCylinder(quadric, radius, radius, 10, 30, 30);

	glRotatef(90,0.0, 1.0, 0.0);
	glColor3f(0.0, 1.0, 0.0);
	gluCylinder(quadric, radius, radius, 10, 30, 30);

	glRotatef(270, 1.0, 0.0, 0.0);
	glColor3f(0.0, 0.0, 1.0);
	gluCylinder(quadric, radius, radius, 10, 30, 30);

	glPopMatrix();

}

void draw_prism(vector& translation, vector& scale,color& color){


	glPushMatrix();

	glTranslatef(translation.x, translation.y, translation.z);
	glScalef(scale.x, scale.y, scale.z);
	glColor3f(color.red, color.green, color.blue);
	glutSolidCube(1.0);

	glColor3f(0.0, 0.0, 1.0);
	glutWireCube(1.0);

	glPopMatrix();
}

void draw_all(){
	gluLookAt(5.0, 5.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);

	draw_system(1, 1, 1);

	vector translation1(0, 0, 0);
	vector scale1(3, 3, 3);
	draw_prism(translation1, scale1,COLOR_1);

	vector translation2(0, 0, 3);
	vector scale2(2, 2, 2);
	draw_prism(translation2, scale2,COLOR_2);

	vector translation3(0, 0, 5);
	vector scale3(1, 1, 1);
	draw_prism(translation3, scale3, COLOR_3);
}

void init(void)

{

	quadric = gluNewQuadric();

	glClearColor(0.0, 0.0, 0.0, 0.0);

	glShadeModel(GL_FLAT);

}



void display(void)

{

	glClear(GL_COLOR_BUFFER_BIT);



	glLoadIdentity();

	draw_all();


	glFlush();

}



void reshape(int w, int h)

{

	glViewport(0, 0, (GLsizei)w, (GLsizei)h);

	glMatrixMode(GL_PROJECTION);

	glLoadIdentity();

	glFrustum(-1.0, 1.0, -1.0, 1.0, 1.5, 20.0);

	glMatrixMode(GL_MODELVIEW);

}



int main(int argc, char** argv)

{

	glutInit(&argc, argv);

	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);

	glutInitWindowSize(500, 500);

	glutInitWindowPosition(100, 100);

	glutCreateWindow(argv[0]);

	init();

	glutDisplayFunc(display);

	glutReshapeFunc(reshape);

	glutMainLoop();

	return 0;

}