Use _integrate_forces to detect blaster collisions, even with asteroids

fx/asteroids/asteroid_field.gd

@@ -19,9 +19,9 @@ func _enter_tree() -> void:
         PhysicsServer3D.body_set_state(physics_body, PhysicsServer3D.BODY_STATE_ANGULAR_VELOCITY, angular_velocity)
         PhysicsServer3D.body_set_state(physics_body, PhysicsServer3D.BODY_STATE_LINEAR_VELOCITY, linear_velocity)
         PhysicsServer3D.body_set_space(physics_body, self.get_world_3d().space)
-        PhysicsServer3D.body_set_force_integration_callback(physics_body, _body_moved, i)
-        PhysicsServer3D.body_set_collision_layer(physics_body, 1)
-        PhysicsServer3D.body_set_collision_mask(physics_body, 2)
+        PhysicsServer3D.body_set_force_integration_callback(physics_body, _force_integration_callback, i)
+        PhysicsServer3D.body_set_collision_layer(physics_body, 0b01)
+        PhysicsServer3D.body_set_collision_mask(physics_body, 0b10)
         PhysicsServer3D.body_set_axis_lock(physics_body, PhysicsServer3D.BODY_AXIS_LINEAR_Y, true)
         self._created_rids.append(physics_body)
 
@@ -36,7 +36,7 @@ func _exit_tree() -> void:
 
     self._created_rids.clear()
 
-func _body_moved(state: PhysicsDirectBodyState3D, index: int) -> void:
+func _force_integration_callback(state: PhysicsDirectBodyState3D, index: int) -> void:
     var mesh_transform := state.transform
 
     # Overwrite the physics scale from the multimesh, because it gets lost for some reason otherwise.

mechanics/combat/weapons/blaster/blaster_bolt.gd

@@ -18,12 +18,19 @@ func _process(_delta: float) -> void:
     if Time.get_ticks_msec() - self._spawn_time_msec > self.lifetime_msec:
         self.queue_free()
 
-func _on_body_entered(body: Node) -> void:
+func _integrate_forces(state: PhysicsDirectBodyState3D) -> void:
+    if state.get_contact_count() == 0:
+        return
+
     var explosion_instance: AnimatedSprite3D = self.explosion.instantiate()
     self.add_sibling(explosion_instance)
     explosion_instance.global_position = self.global_position
     explosion_instance.global_rotation = self.global_rotation
     explosion_instance.scale = Vector3.ONE * 0.2
 
-    CombatObject.damage_combat_object_inside(body, self.damage)
+    var collider := state.get_contact_collider_object(0)
+    var node := collider as Node
+    if node:
+        CombatObject.damage_combat_object_inside(node, self.damage)
+
     self.queue_free()

mechanics/combat/weapons/blaster/blaster_bolt.tscn

@@ -33,7 +33,9 @@ lock_rotation = true
 continuous_cd = true
 max_contacts_reported = 1
 contact_monitor = true
+linear_damp_mode = 1
 angular_velocity = Vector3(3.63316e-14, 3.63316e-14, 3.63316e-14)
+angular_damp_mode = 1
 script = ExtResource("1_nmdx1")
 damage = SubResource("Resource_a466u")
 explosion = ExtResource("3_0y0wg")
@@ -63,5 +65,3 @@ mesh = SubResource("QuadMesh_fxvid")
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -0.510476)
 stream = ExtResource("5_dbrcg")
 autoplay = true
-
-[connection signal="body_entered" from="." to="." method="_on_body_entered"]