+Bomb::explode()
+{
+ ticking->stop();
+ state = STATE_EXPLODING;
+ set_group(COLGROUP_TOUCHABLE);
+ sound_manager->play("sounds/explosion.wav", get_pos());
+ set_action_centered("explosion", 1);
+
+ // spawn some particles
+ // TODO: provide convenience function in MovingSprite or MovingObject?
+ for (int i = 0; i < 100; i++) {
+ Vector ppos = bbox.get_middle();
+ float angle = systemRandom.randf(-M_PI_2, M_PI_2);
+ float velocity = systemRandom.randf(450, 900);
+ float vx = sin(angle)*velocity;
+ float vy = -cos(angle)*velocity;
+ Vector pspeed = Vector(vx, vy);
+ Vector paccel = Vector(0, 1000);
+ Sector::current()->add_object(new SpriteParticle("images/objects/particles/kracker.sprite", "default", ppos, ANCHOR_MIDDLE, pspeed, paccel, LAYER_OBJECTS-1));
+ }
+
+}
+
+void