#include <GL/glut.h>

GLfloat light_position[] = {00.0f, 0.0f, 100.0f, 0.0f};
// Setup diffuse property
GLfloat diffuse_light[] = {0.9f, 0.9f, 0.9f, 0.0f};
// Setup ambient property
GLfloat ambient_light[] = {0.2f, 0.2f, 0.2f, 0.0f};
// Setup specular property
GLfloat specular_light[] = {0.5f, 0.5f, 0.5f, 0.0f};

GLfloat brass_ambient[]={0.33, 0.22, 0.03, 1.0};
GLfloat brass_diffuse[]={0.78, 0.57, 0.11, 1.0};
GLfloat brass_specular[]={0.99, 0.91, 0.81, 1.0};
GLfloat brass_shininess = 27.8;

float deg = 0;

GLubyte myimage[64][64][3];
GLubyte yourimage[64][64][3];

GLuint myid = 0;
GLuint yourid = 0;

void initImage() {
	int c;
	for (int i = 0; i < 64; i++) {
		for (int j = 0; j < 64; j++) {
		 c = ((((i&0x8)==0)^((j&0x8))==0))*255;
         myimage[i][j][0] = (GLubyte) c;
         myimage[i][j][1] = (GLubyte) c;
         myimage[i][j][2] = (GLubyte) c;
		 yourimage[i][j][0] = rand()%255;
		 yourimage[i][j][1] = rand()%255;
		 yourimage[i][j][2] = rand()%255;

		}
	}
}

/*
glBegin (GL_QUADS);
			glTexCoord2f (0.0, 0.0);
			glVertex3f(-1.0f, -1.0f, 0.0f);
			glTexCoord2f (0.0, 2.0);
			glVertex3f(-1.0f, 1.0f, 0.0f);
			glTexCoord2f (2.0, 2.0);
			glVertex3f(1.0f, 1.0f, 0.0f);
			glTexCoord2f(2.0, 0.0f);
			glVertex3f(1.0f, -1.0f, 0.0f);
		glEnd();

glBegin (GL_QUADS);
			glTexCoord2f (0.0, 0.0);
			glVertex3f(-2.0f, -2.0f, 0.0f);
			glTexCoord2f (0.0, 2.0);
			glVertex3f(-2.0f, 0.0f, 0.0f);
			glTexCoord2f (2.0, 2.0);
			glVertex3f(0.0f, 0.0f, 0.0f);
			glTexCoord2f(2.0, 0.0f);
			glVertex3f(0.0f, -2.0f, 0.0f);
		glEnd();
  */

void display() {
	glClear (GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
	glEnable(GL_TEXTURE_2D);
	glPushMatrix();
		glTranslatef(-0.5, -0.4, -1.0);
		 
		glRasterPos2f(0, 0);
	glPopMatrix();
	

	glMatrixMode(GL_MODELVIEW);
	glPushMatrix();
		glLoadIdentity();
		glTranslatef(-1.0, 0.0, -5.0);
		
		glPushMatrix();
			glRotatef (deg, 0.0, 1.0, 0.0);
			glBindTexture(GL_TEXTURE_2D, myid);
			glutSolidTeapot (1.0);
		glPopMatrix();
		glPushMatrix();
			glTranslatef(2.0, 0.0, 0.0);
			glRotatef(deg, 0.0, 1.0, 0.0);
			glBindTexture(GL_TEXTURE_2D, yourid);
			glutSolidTeapot (1.0);
		glPopMatrix();
	glPopMatrix();
	
	glutSwapBuffers();
	glFlush();
	glDisable (GL_TEXTURE_2D);
}

void idleFunc() {
	deg += 0.3;
	glutPostRedisplay();
}

void setupLights() {
	glEnable (GL_LIGHTING);
	glEnable (GL_LIGHT0);
	glLightfv (GL_LIGHT0, GL_POSITION, light_position);
	glLightfv (GL_LIGHT0, GL_DIFFUSE, diffuse_light);
	glLightfv (GL_LIGHT0, GL_AMBIENT, ambient_light);
	glLightfv (GL_LIGHT0, GL_SPECULAR, specular_light);
}

void setupCamera() {
	glMatrixMode (GL_PROJECTION);
	glLoadIdentity();
	gluPerspective(60.0f, 1.0f, 0.1f, 1000.0f);
	glMatrixMode (GL_MODELVIEW);
}

void setupWindow() {
	glutInitDisplayMode (GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
	
	glutInitWindowPosition(30, 30);
	glutInitWindowSize (500, 500);
	glutCreateWindow ("Texture Objects");
	glEnable(GL_DEPTH_TEST);
	
	glutDisplayFunc(display);
	glutIdleFunc(idleFunc);
}

void main (int argv, char** argc) {
	initImage();
	glutInit(&argv, argc);
	setupWindow();
	setupCamera();
	setupLights();
	// Get a number
	glGenTextures (5, &myid);
	// Start binding a texture, and store on graphics card
	glBindTexture (GL_TEXTURE_2D, myid);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 64, 64, 0, GL_RGB, GL_UNSIGNED_BYTE, myimage);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	// All the way down to here

	// Get a second number
	glGenTextures (5, &yourid);
	// Start recording, and store on graphics card
	glBindTexture (GL_TEXTURE_2D, yourid);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 64, 64, 0, GL_RGB, GL_UNSIGNED_BYTE, yourimage);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	// All the way down to here

	

	glutMainLoop();
}