Image::Image(Entity *entity) : AComponent(entity, T_IMAGE, 0, 1)
{
POSITION(entity);
VISIBILITY(entity);
ROTATION(entity);
this->bitmap = NULL;
}
static int add_method_if_matching(ID method_name, NODE *body, add_method_if_matching_arg_t *arg) {
/* This entry is for the internal allocator function. */
if (method_name == ID_ALLOCATOR)
return ST_CONTINUE;
/* Module#undef_method sets body->nd_body to NULL. */
if (!body || !body->nd_body)
return ST_CONTINUE;
if (VISIBILITY(body) == arg->visibility)
rb_ary_push(arg->names, ID2SYM(method_name));
return ST_CONTINUE;
}
void Image::draw()
{
Position *position = POSITION(this->entity);
unsigned char opacity = VISIBILITY(this->entity)->opacity;
float angle = ROTATION(this->entity)->angle;
if (this->bitmap)
al_draw_tinted_rotated_bitmap(this->bitmap,
al_map_rgba(opacity, opacity, opacity, opacity),
angle == 0 ? 0 : al_get_bitmap_width(this->bitmap) / 2,
angle == 0 ? 0 : al_get_bitmap_height(this->bitmap) / 2,
angle == 0 ? position->x : position->x + al_get_bitmap_width(this->bitmap) / 2,
angle == 0 ? position->y : position->y + al_get_bitmap_height(this->bitmap) / 2,
angle,
0);
}
