int main(void)
{
allegro_init();
install_timer();
install_keyboard();
rgb_map = malloc(sizeof(RGB_MAP));
create_rgb_table(rgb_map, desktop_palette, NULL);
set_gfx_mode(GFX_AUTODETECT, 320, 200, 0, 0);
buffer = create_bitmap(SCREEN_W, SCREEN_H);
set_projection_viewport(0, 0, SCREEN_W, SCREEN_H);
init_shape();
while (!key[KEY_ESC]) {
move_shape();
translate_shape();
vsync();
draw();
}
destroy_bitmap(buffer);
free(rgb_map);
allegro_exit();
return 0;
}
static void emit_spiral(bool inner)
{
double mod;
Vector3d *tmp;
Vector3d translate;
int i;
/* initial; buffer setup */
g_shape = g_vector_buffer[0];
g_target = g_vector_buffer[1];
/* create shape */
create_shape(inner ?
MARBLE_RUN_SEGMENT_HEIGHT/2 :
MARBLE_RUN_SEGMENT_HEIGHT/2+MARBLE_RUN_WALL
);
/* remember start */
if(inner)
memcpy(g_vector_inner[0], g_shape, sizeof(g_vector_inner[0]));
else
emit_cap(g_vector_inner[0], g_shape, true);
/* emit sculpture */
translate = Vector3d::UnitZ()*(MARBLE_RUN_SEGMENT_HEIGHT+MARBLE_RUN_WALL)/MARBLE_RUN_RESOLUTION;
for(i=0; i<(6*MARBLE_RUN_RESOLUTION); i++)
{
if(inner)
mod = sin(i*M_PI/(((i / ((MARBLE_RUN_RESOLUTION)/10)) % 4)+1.5))/7;
else
mod = 0;
/* translate all points */
translate_shape(translate, mod);
/* emit resulting layer */
emit_stl_layer(inner);
/* move to next layer */
tmp = g_shape;
g_shape = g_target;
g_target = tmp;
}
/* remember end */
if(inner)
memcpy(g_vector_inner[1], g_shape, sizeof(g_vector_inner[1]));
else
emit_cap(g_vector_inner[1], g_shape, false);
}
