void draw_fractal(int num) {
switch (num) {
case 0:
glRectf(-1, -1, -0.6, 1);
glRectf(-1, -1, 1, -0.6);
break;
case 10:
current = 0;
glutPostRedisplay();
break;
default:
glPushMatrix();
if (num == current)
glColor3f(1.0, 0.0, 0.0);
glTranslatef(-0.5, 0.5, 0);
glScalef(-0.5, 0.5, 1);
draw_fractal(num - 1);
glPopMatrix();
glPushMatrix();
if (num == current)
glColor3f(0.0, 1.0, 0.0);
glTranslatef(0.75, 0.75, 0);
glRotatef(180, 0, 0, 1);
glScalef(0.25, 0.25, 1);
draw_fractal(num - 1);
glPopMatrix();
glPushMatrix();
if (num == current)
glColor3f(0.0, 0.0, 1.0);
glTranslatef(0.5, -0.5, 0);
glRotatef(90, 0, 0, -1);
glScalef(-0.5, 0.5, 0);
draw_fractal(num - 1);
glPopMatrix();
glPushMatrix();
if (num == current)
glColor3f(1.0, 1.0, 1.0);
glTranslatef(-0.5, -0.5, 0);
glScalef(0.5, 0.5, 1);
draw_fractal(num - 1);
glPopMatrix();
break;
}
}
void draw_fractal(int n, int x, int y) {
int pos = pow(3,n-2), i;
if ( n==1 ) {
fractal[x][y] = 'X';
return;
}
draw_fractal(n-1, x, y);
draw_fractal(n-1, x-pos, y-pos);
draw_fractal(n-1, x-pos, y+pos);
draw_fractal(n-1, x+pos, y-pos);
draw_fractal(n-1, x+pos, y+pos);
}
void draw() {
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
draw_fractal(current);
glutSwapBuffers();
}
main(int argc, char **argv) {
draw_fractal ("fractal.gif", /* Good values */
atoi(argv[1]), /* Width = 300 */
atoi(argv[2]), /* Height = 300 */
atof(argv[3]), /* Origin.r = -1.4 */
atof(argv[4]), /* Origin.i = 1.0 */
atof(argv[5]), /* Range = 2.0 */
atof(argv[6])); /* Max Iterations = 1.0 */
}
int motion_hook(int x, int y, t_env *env)
{
if (x >= 0 && x <= WIDTH && y >= 0 && y <= HEIGHT)
{
if ((env->fractal == JULIA && env->julia_static == 0) ||
(env->fractal == JULIA_BURNING && env->julia_static == 0) ||
(env->fractal == BIOMORPH && env->julia_static == 0) ||
(env->fractal == JULIA_BIRD && env->julia_static == 0))
{
env->c_julia.reel = (x + env->offset_x) /
(double)env->zoom + env->x1;
env->c_julia.img = (y + env->offset_y) /
(double)env->zoom + env->y1;
draw_fractal(env);
}
env->c_point.reel = x;
env->c_point.img = y;
}
return (1);
}
int main()
{
int size, i, j, pos;
while ( scanf("%d",&size), size != -1 )
{
for ( i=0 ; i<pow(3,size-1) ; i++ )
for ( j=0 ; j<pow(3,size-1) ; j++ )
fractal[i][j] = ' ';
pos = pow(3,size-1);
draw_fractal(size, pos/2, pos/2);
for ( i=0 ; i<pos ; i++ ) {
for ( j=0 ; j<pos ; j++ )
printf("%c",fractal[i][j]);
printf("\n");
}
printf("-\n");
}
}
void init_env(t_env *env)
{
env->mlx = mlx_init();
if (env->mlx == NULL)
{
ft_putendl_fd("Fatal error : mlx cannot initialize", 2);
exit(-1);
}
env->zoom = ZOOM;
env->win = mlx_new_window(env->mlx, WIDTH, HEIGHT, "Fract'ol");
if (env->win == NULL)
{
ft_putendl_fd("Fatal error : mlx cannot create window", 2);
exit(-1);
}
init_img(env);
env->color = 0;
env->menu = 0;
draw_fractal(env);
}
int key_hook(int keycode, t_env *env)
{
if (keycode == KEYCODE_ESC)
{
mlx_destroy_image(env->mlx, env->img);
exit(0);
}
if (keycode == KEYCODE_H)
env->menu = (env->menu + 1) % 2;
else
{
move(keycode, env);
zoom(keycode, env);
change_fractal(keycode, env);
change_color(keycode, env);
}
mlx_destroy_image(env->mlx, env->img);
init_img(env);
draw_fractal(env);
return (keycode);
}
