main.c

/*======================================================*\
  Wednesday September the 25th 2013
  Arash HABIBI
  Question1.c
\*======================================================*/

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <GL/glut.h>
#include <GL/glx.h>

#include "Vector.h"
#include "Polygon.h"
#include "QuadMesh.h"

#define DIM2 0
#define DIM3 1
int dim=DIM2;

/* dimensions de la fenetre */
int width = 650;
int height = 650;

GLfloat p_light[4];

//------------------------------------------------------------

void drawLine(Vector p1, Vector p2)
{
	glBegin(GL_LINES);
	glVertex3d(p1.x,p1.y,p1.z);
	glVertex3d(p2.x,p2.y,p2.z);
	glEnd();
}

//------------------------------------------------------------

void initShade()
{
	GLfloat mat_diffuse[] = {1,1,1,1.0};
	GLfloat mat_ambient[] = {0.1,0.1,0.1,0.0};

	glClearColor (0.0, 0.0, 0.0, 0.0);
	glShadeModel (GL_SMOOTH);
	glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);

	glLightfv(GL_LIGHT0, GL_DIFFUSE, mat_diffuse);
	glLightfv(GL_LIGHT0, GL_AMBIENT, mat_ambient);
	glLightfv(GL_LIGHT0, GL_POSITION, p_light);

	glEnable(GL_LIGHTING);
	glEnable(GL_LIGHT0);
	glEnable(GL_DEPTH_TEST);
}


/*************************************************************************/
/* Fonctions callback */
/*************************************************************************/

void display()
{
	glEnable(GL_DEPTH_TEST);
	glDepthMask(GL_TRUE);
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();

	if(dim==DIM2)	glOrtho(-1,1,-1,1,-1,1);
	else			gluPerspective( 40, (float)width/height, 1, 100);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();

	// Dessiner ici
	// ...

	// Repere du monde

	drawRepere();

	glutSwapBuffers();
}

//------------------------------------------------------------

void keyboard(unsigned char keycode, int x, int y)
{
	// printf("Touche frapee : %c (code ascii %d)\n",keycode, keycode);

	if (keycode==27) // ECHAP
		exit(0);

	glutPostRedisplay();
}

//------------------------------------------------------------

void special(int keycode, int x, int y)
{
	int mod = glutGetModifiers();
	switch(keycode)
    {
    case GLUT_KEY_UP        : printf("Flèche haut\n"); break;
    case GLUT_KEY_DOWN      : printf("Flèche bas\n"); break;
    case GLUT_KEY_LEFT      : printf("Flèche gauche\n"); break;
    case GLUT_KEY_RIGHT     : printf("Flèche droite\n"); break;
    case GLUT_KEY_PAGE_UP   : printf("Flèche avant\n"); break;
    case GLUT_KEY_PAGE_DOWN : printf("Flèche arriere\n"); break;
    default : fprintf(stderr,"function special : unknown keycode %d\n",keycode); break;
    }
	if(mod==GLUT_ACTIVE_CTRL)
		glLightfv(GL_LIGHT0, GL_POSITION, p_light);
}

//------------------------------------------------------------

void mouse(int button, int state, int x, int y)
{
	printf("Clic at %d %d \n",x,y);

	glutPostRedisplay();
}

//------------------------------------------------------------

void idle()
{
	// animation du personnage ici

	glutPostRedisplay();
}

/*************************************************************************/
/* Fonction principale */
/*************************************************************************/

int main(int argc, char *argv[])
{
	glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
	glutInitWindowSize(width, height);
	glutInitWindowPosition(50, 50);
    glutCreateWindow("Transformations matricielles");
    glViewport(0, 0, width, height);
	glClearColor(0,0,0,0);

	glutDisplayFunc(display);
//	glutReshapeFunc(reshape);
	glutKeyboardFunc(keyboard);
	glutSpecialFunc(special);
	glutMouseFunc(mouse);
	glutIdleFunc(idle);

	p_light[0]=-10.0;
	p_light[1]=20.0;
	p_light[2]=0.0;
	p_light[3]=1.0;

	p_aim = V_new(0,0,-2.75);
	P = P_new();
	M = NULL;

	glutMainLoop();

    return 0;
}