Question Why i cant send a ray like this ?

Code (CSharp):

1.  private BuildPhysicsWorld buildPhysicsWorld;
2.     private CollisionWorld collisionWorld;
3.    
4.     protected override void OnStartRunning()
5.     {
6.         buildPhysicsWorld = World.DefaultGameObjectInjectionWorld.GetExistingSystem<BuildPhysicsWorld>();
7.         collisionWorld = buildPhysicsWorld.PhysicsWorld.CollisionWorld;
8.     }
9.    
10.     protected override void OnUpdate()
11.     {
12.         float xValue = Input.GetAxis("Horizontal");
13.         float zValue = Input.GetAxis("Vertical");
14.  
15.         Vector3 direction = new Vector3(xValue, 0, zValue);
16.         bool isInputAvaliable = direction.magnitude > 0 ? true : false;
17.        
18.         Entities.ForEach(( ref Translation translation ,ref MovementComponent movementComponent, ref PhysicsVelocity physicsVelocity, in TimeComponent timeComponent) =>
19.         {
20.             RaycastInput raycastInput = new RaycastInput
21.             {
22.                 Start = translation.Value,
23.                 End = translation.Value - new float3(0, -1, 0)
24.             };
25.        
26.             bool isGrounded = IsGrounded(raycastInput);
27.            
28.             if (isInputAvaliable && isGrounded)
29.             {
30.                 movementComponent.lastDirection = direction;
31.                 physicsVelocity.Linear = new float3(xValue, 0, zValue) * timeComponent.localTimeScale * movementComponent.groundSpeed;
32.             }
33.         }).Run();
34.     }
35.  
36.     public bool IsGrounded(RaycastInput raycastInput)
37.     {
38.         Unity.Physics.RaycastHit raycastHit = new Unity.Physics.RaycastHit();
39.  
40.         if (collisionWorld.CastRay(raycastInput, out raycastHit))
41.         {
42.             return true;
43.         }
44.         return false;
45.     }

this code isn't working because of Isgrounded function. How should I do that ?

 

I'm pretty sure you have to fetch the collision world every update. See if moving

collisionWorld = buildPhysicsWorld.PhysicsWorld.CollisionWorld;

to OnUpdate fixes the problem.

 

It's say Assets\_Scripts\System\MovementSystem.cs(27,9): error DC0004: Entities.ForEach Lambda expression captures a non-value type 'this'. This is only allowed with .WithoutBurst() and .Run()

 

Make your IsGrounded method static