transformPlane
Controls the transform plane that the world uses when writing transforms. See _transformWriteMode.
Read time 1 minuteLast updated 14 days ago
Definition
- Type: Property
- Namespace: Unity.U2D.Physics
- Assembly: UnityEngine.PhysicsCore2DModule
public PhysicsWorld.TransformPlane transformPlane { get; set; }
Remarks
Set this property to run 2D physics in 3D space, for example to lay a 2D world flat on the ground.
Examples
using Unity.Collections;using UnityEngine;using Unity.U2D.Physics;public class CreateXZPlane : MonoBehaviour{ public PhysicsWorld world; private void Start() { // Create a world with a transform plane of XZ, which is the floor in 3D space. PhysicsWorldDefinition worldProperties = new PhysicsWorldDefinition { transformPlane = PhysicsWorld.TransformPlane.XZ, gravity = Vector2.zero }; world = PhysicsWorld.Create(worldProperties); // Create a square boundary. PhysicsBody boundary = world.CreateBody(); using NativeList<Vector2> extentPoints = new NativeList<Vector2>(Allocator.Temp) { new(-4f, 4f), new(4f, 4f), new(4f, -4f), new(-4f, -4f) }; ChainGeometry boundaryWalls = new ChainGeometry(extentPoints.AsArray()); boundary.CreateChain(boundaryWalls, PhysicsChainDefinition.defaultDefinition); // Create a body and set it moving. PhysicsBodyDefinition bodyDefinition = new PhysicsBodyDefinition(); bodyDefinition.type = PhysicsBody.BodyType.Dynamic; bodyDefinition.linearVelocity = new Vector2(7.3f, 5.7f); bodyDefinition.angularVelocity = 0f; PhysicsBody body = world.CreateBody(bodyDefinition); // Add a shape with a bouncy material. body.transformObject = transform; PhysicsShapeDefinition shapeDefinition = new PhysicsShapeDefinition(); shapeDefinition.surfaceMaterial = new PhysicsShape.SurfaceMaterial { bounciness = 1f, friction = 0f }; body.CreateShape(new CircleGeometry { radius = 1f }, shapeDefinition); } private void OnDisable() { world.Destroy(); }}