heightfield
heightfield_create_from_file(camera cam, char *heightmap_filename,
float sizex, float sizey, float sizez)
{
heightfield hf;
assert(heightmap_filename);
hf = (heightfield)malloc(sizeof(struct heightfield));
object3d_init(&hf->obj, matrix4_identity, NULL, NULL);
hf->sizex = sizex;
hf->sizey = sizey;
hf->sizez = sizez;
hf->patch_sizex = 17;
hf->cam = cam;
object3d_set_world_matrix(SF_OBJECT3D(hf), matrix4_identity);
hf->zvalues = create_zvalues(hf, heightmap_filename);
if(!hf->zvalues) {
free(hf);
fprintf(stderr, "heightfield_create_from_file: Can't create mesh\n");
return NULL;
}
hf->quadtree = quadtree_create(-hf->sizex/2, -hf->sizey/2, hf->sizex/2, hf->sizey/2, 4);
quadtree_foreach_leaf(hf->quadtree, hf, quadtree_fill);
return hf;
}
static NEINT32 init_mapobj_tree()
{
quadbox_t box = get_mapbox();
mapobj_tree = quadtree_create(box, QTREE_DEPTH_MIN, QBOX_OVERLAP_MIN);
ne_mutex_init(&map_lock);
return (0);
}