enhancing car behavior

game/scenes/Vehicles/car.gd

@@ -6,6 +6,8 @@ extends RigidBody3D
 @export var turn_speed := 2.0
 @export var turn_accel := 8.0
 @export var lateral_damp := 10.0
+@export var launch_impulse := 28.0
+@export var launch_up_impulse := 6.0
 @export var seat_path: NodePath
 @export var exit_path: NodePath
 @export var camera_path: NodePath
@@ -27,6 +29,8 @@ func _ready() -> void:
 		interact_area.body_exited.connect(_on_interact_body_exited)
 	if car_camera:
 		car_camera.current = false
+	contact_monitor = true
+	max_contacts_reported = 8
 
 func _process(_delta: float) -> void:
 	if _driver == null and _nearby_driver != null and Input.is_action_just_pressed("interact"):
@@ -56,6 +60,23 @@ func _integrate_forces(state: PhysicsDirectBodyState3D) -> void:
 	var target_turn: float = -input2v.x * turn_speed * speed_factor
 	angular_velocity.y = move_toward(angular_velocity.y, target_turn, turn_accel * state.step)
 
+	if speed_factor > 0.2:
+		var hit_ids := {}
+		for i in state.get_contact_count():
+			var collider := state.get_contact_collider_object(i)
+			if collider is RigidBody3D and collider != self:
+				var collider_id := (collider as Node).get_instance_id()
+				if hit_ids.has(collider_id):
+					continue
+				hit_ids[collider_id] = true
+				var contact_pos := state.get_contact_collider_position(i)
+				var launch_dir := (contact_pos - global_position).normalized()
+				if launch_dir.length() <= 0.001:
+					var normal_world := (global_transform.basis * state.get_contact_local_normal(i)).normalized()
+					launch_dir = normal_world if normal_world.length() > 0.001 else forward.normalized()
+				var impulse := launch_dir * (launch_impulse * speed_factor) + Vector3.UP * launch_up_impulse
+				(collider as RigidBody3D).apply_central_impulse(impulse)
+
 func _enter_vehicle(player: Node) -> void:
 	if seat == null:
 		return