f7f6115f76
- Document a few more properties and methods - Add more information to many classes - Fix lots of typos and gramar mistakes - Use [code] tags for parameters consistently - Use [b] and [i] tags consistently - Put "Warning:" and "Note:" on their own line to be more visible, and make them always bold - Tweak formatting in code examples to be more readable - Use double quotes consistently - Add more links to third-party technologies
30 lines
2.5 KiB
XML
30 lines
2.5 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
|
|
<class name="VehicleBody" inherits="RigidBody" category="Core" version="3.2">
|
|
<brief_description>
|
|
Physics body that simulates the behavior of a car.
|
|
</brief_description>
|
|
<description>
|
|
This node 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 [CollisionShape] for the main body of your vehicle and add [VehicleWheel] nodes for the wheels. You should also add a [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 [member brake], [member engine_force], and [member steering] properties and not change the position or orientation of this node directly.
|
|
[b]Note:[/b] 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 [CollisionShape] and [MeshInstance] upwards.
|
|
</description>
|
|
<tutorials>
|
|
</tutorials>
|
|
<methods>
|
|
</methods>
|
|
<members>
|
|
<member name="brake" type="float" setter="set_brake" getter="get_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 [member 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.
|
|
</member>
|
|
<member name="engine_force" type="float" setter="set_engine_force" getter="get_engine_force">
|
|
Accelerates the vehicle by applying an engine force. The vehicle is only speed up if the wheels that have [member VehicleWheel.use_as_traction] set to [code]true[/code] and are in contact with a surface. The [member 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.
|
|
[b]Note:[/b] 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.
|
|
A negative value will result in the vehicle reversing.
|
|
</member>
|
|
<member name="steering" type="float" setter="set_steering" getter="get_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 [member VehicleWheel.use_as_steering] set to [code]true[/code] will automatically be rotated.
|
|
</member>
|
|
</members>
|
|
<constants>
|
|
</constants>
|
|
</class>
|