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class_vehiclebody.rst

class_vehiclebody.rst 3.1 KB
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  1. .. Generated automatically by doc/tools/makerst.py in Godot's source tree.
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  2. .. DO NOT EDIT THIS FILE, but the VehicleBody.xml source instead.
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  3. .. The source is found in doc/classes or modules/<name>/doc_classes.
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  4. 

  5. .. _class_VehicleBody:
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  6. 

  7. VehicleBody
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  8. ===========
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  9. 

  10. **Inherits:** :ref:`RigidBody<class_rigidbody>` **<** :ref:`PhysicsBody<class_physicsbody>` **<** :ref:`CollisionObject<class_collisionobject>` **<** :ref:`Spatial<class_spatial>` **<** :ref:`Node<class_node>` **<** :ref:`Object<class_object>`
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  12. **Category:** Core
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  13. 

  14. Brief Description
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  15. -----------------
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  16. 

  17. Physics body that simulates the behaviour of a car.
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  18. 

  19. Member Variables
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  20. ----------------
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  22.   .. _class_VehicleBody_brake:
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  24. - :ref:`float<class_float>` **brake** - Slows down the vehicle by applying a braking force. The vehicle is only slowed down if the wheels are in contact with a surface. The force you need to apply to adequately slow down your vehicle depends on the :ref:`RigidBody.mass<class_RigidBody_mass>` of the vehicle. For a vehicle with a mass set to 1000, try a value in the 25 - 30 range for hard braking.
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  26.   .. _class_VehicleBody_engine_force:
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  28. - :ref:`float<class_float>` **engine_force** - Accelerates the vehicle by applying an engine force. The vehicle is only speed up if the wheels that have :ref:`VehicleWheel.set_use_as_traction<class_VehicleWheel_set_use_as_traction>` set to true and are in contact with a surface. The :ref:`RigidBody.mass<class_RigidBody_mass>` of the vehicle has an effect on the acceleration of the vehicle. For a vehicle with a mass set to 1000, try a value in the 25 - 50 range for acceleration. Note that the simulation does not take the effect of gears into account, you will need to add logic for this if you wish to simulate gears.
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  30. A negative value will result in the vehicle reversing.
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  32.   .. _class_VehicleBody_steering:
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  34. - :ref:`float<class_float>` **steering** - The steering angle for the vehicle. Setting this to a non-zero value will result in the vehicle turning when it's moving. Wheels that have :ref:`VehicleWheel.set_use_as_steering<class_VehicleWheel_set_use_as_steering>` set to true will automatically be rotated.
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  37. Description
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  38. -----------
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  39. 

  40. This nodes implements all the physics logic needed to simulate a car. It is based on the raycast vehicle system commonly found in physics engines. You will need to add a :ref:`CollisionShape<class_collisionshape>` for the main body of your vehicle and add :ref:`VehicleWheel<class_vehiclewheel>` nodes for the wheels. You should also add a :ref:`MeshInstance<class_meshinstance>` to this node for the 3D model of your car but this model should not include meshes for the wheels. You should control the vehicle by using the :ref:`brake<class_VehicleBody_brake>`, :ref:`engine_force<class_VehicleBody_engine_force>`, and :ref:`steering<class_VehicleBody_steering>` properties and not change the position or orientation of this node directly.
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  42. Note that the origin point of your VehicleBody will determine the center of gravity of your vehicle so it is better to keep this low and move the :ref:`CollisionShape<class_collisionshape>` and :ref:`MeshInstance<class_meshinstance>` upwards.
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