#include <GL/glut.h>
#include <cstdlib>



void myInit()
{
	glEnable(GL_DEPTH_TEST);
	glEnable(GL_LIGHTING);
	glEnable(GL_LIGHT0);
	glEnable(GL_NORMALIZE);
	glShadeModel(GL_SMOOTH);

	GLfloat light_diffuse[] = { 1.0 , 1.0 , 1.0 , 1.0 };
	GLfloat light_specular[] = { 1.0 , 1.0 , 1.0 , 1.0 };
	GLfloat light_ambient[] = { 0.2 , 0.2 , 0.2 , 1.0 };
	GLfloat light_position[] = { -1,1,1 , 0 };

	glLightfv(GL_LIGHT0 , GL_POSITION , light_position);
	glLightfv(GL_LIGHT0 , GL_DIFFUSE , light_diffuse);
	glLightfv(GL_LIGHT0 , GL_AMBIENT , light_ambient);
	glLightfv(GL_LIGHT0 , GL_SPECULAR , light_specular);

	glClearColor( 0.3 , 0.3 , 0.8 , 1.0 );

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(-1.5,1.5,-1.5,1.5,-10,20.0);
	glMatrixMode(GL_MODELVIEW);

	glLoadIdentity();
	gluLookAt(0,0,5 , 0,0,0 , 0,1,0);
}

void display()
{
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glColor3f(0.0 , 0.0 , 0.0);

	//black plastic
	glViewport(0,400,200,200);
	GLfloat mat_ambient[] = { 0.0 , 0.0 , 0.0 , 1.0 };
	GLfloat mat_diffuse[] = { 0.01 , 0.01 , 0.01 , 1.0 };
	GLfloat mat_specular[] = {0.5 , 0.5 , 0.5, 1.0 };
	GLfloat mat_shininess[] = { 32 };
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//brass
	glViewport(200,400,200,200);
	mat_ambient[0]=0.329412 ; mat_ambient[1]=0.223529 ; mat_ambient[2]=0.027451;
	mat_diffuse[0]=0.780392 ; mat_diffuse[1]=0.568627 ; mat_diffuse[2]=0.113725;
	mat_specular[0]=0.992157; mat_specular[1]=0.941176; mat_specular[2]=0.807843;
	mat_shininess[0]=27.8974;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//bronze
	glViewport(400,400,200,200);
	mat_ambient[0]=0.2125 ; mat_ambient[1]=0.1275 ; mat_ambient[2]=0.054;
	mat_diffuse[0]=0.714 ; mat_diffuse[1]=0.4284 ; mat_diffuse[2]=0.18144;
	mat_specular[0]=0.393548; mat_specular[1]=0.271906; mat_specular[2]=0.166721;
	mat_shininess[0]=25.6;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//chrome
	glViewport(0,200,200,200);
	mat_ambient[0]=0.25 ; mat_ambient[1]=0.25 ; mat_ambient[2]=0.25;
	mat_diffuse[0]=0.4 ; mat_diffuse[1]=0.4 ; mat_diffuse[2]=0.4;
	mat_specular[0]=0.774597; mat_specular[1]=0.774597; mat_specular[2]=0.774597;
	mat_shininess[0]=76.8;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//copper
	glViewport(200,200,200,200);
	mat_ambient[0]=0.19125 ; mat_ambient[1]=0.0735 ; mat_ambient[2]=0.0225;
	mat_diffuse[0]=0.7038 ; mat_diffuse[1]=0.27048 ; mat_diffuse[2]=0.0828;
	mat_specular[0]=0.256777; mat_specular[1]=0.137622; mat_specular[2]=0.086014;
	mat_shininess[0]=12.8;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//gold
	glViewport(400,200,200,200);
	mat_ambient[0]=0.24725 ; mat_ambient[1]=0.1995 ; mat_ambient[2]=0.0745;
	mat_diffuse[0]=0.75164 ; mat_diffuse[1]=0.60648 ; mat_diffuse[2]=0.22648;
	mat_specular[0]=0.628281; mat_specular[1]=0.555802; mat_specular[2]=0.366065;
	mat_shininess[0]=51.2;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//pewter
	glViewport(0,0,200,200);
	mat_ambient[0]=0.10588 ; mat_ambient[1]=0.058824 ; mat_ambient[2]=0.113725;
	mat_diffuse[0]=0.427451 ; mat_diffuse[1]=0.470588 ; mat_diffuse[2]=0.541176;
	mat_specular[0]=0.3333; mat_specular[1]=0.3333; mat_specular[2]=0.521569;
	mat_shininess[0]=9.84615;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//silver
	glViewport(200,0,200,200);
	mat_ambient[0]=0.19225 ; mat_ambient[1]=0.19225 ; mat_ambient[2]=0.19225;
	mat_diffuse[0]=0.50754 ; mat_diffuse[1]=0.50754 ; mat_diffuse[2]=0.50754;
	mat_specular[0]=0.508273; mat_specular[1]=0.508273; mat_specular[2]=0.508273;
	mat_shininess[0]=51.2;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	//polished silver
	glViewport(400,0,200,200);
	mat_ambient[0]=0.23125 ; mat_ambient[1]=0.23125 ; mat_ambient[2]=0.23125;
	mat_diffuse[0]=0.2775 ; mat_diffuse[1]=0.2775 ; mat_diffuse[2]=0.2775;
	mat_specular[0]=0.773911; mat_specular[1]=0.773911; mat_specular[2]=0.773911;
	mat_shininess[0]=89.6;
	glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
	glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
	glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
	glutSolidTeapot(1.0);

	glFlush();
}

void keyboard(unsigned char key, GLint x, GLint y)
{
	
	switch (key)
	{
	case 'q':
		exit( 0 );
		break;
	}


	return;

 }


int main (int argc , char **argv)
{
	glutInit(&argc,argv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
	glutInitWindowSize(600,600);
	glutInitWindowPosition(0,0);
	glutCreateWindow("Material Settings");
	myInit();
	glutDisplayFunc(display);
	glutKeyboardFunc(keyboard);
	glutMainLoop();

	return 0;
}