Collision Detection

I am trying to create a collision system that lets me know when anything enters the firing range of my ships. I have added spherical colliders to the ships and I am following the Physics examples from Unity.

I have this for what is getting added to the ship entities:

Code (CSharp):

1.  
2.         var material = new Unity.Physics.Material
3.         {
4.             CustomTags = Unity.Physics.Material.Default.CustomTags,
5.             Flags = Unity.Physics.Material.MaterialFlags.EnableCollisionEvents |
6.                     Unity.Physics.Material.MaterialFlags.EnableMassFactors |
7.                     Unity.Physics.Material.MaterialFlags.EnableSurfaceVelocity,
8.             Friction = Unity.Physics.Material.Default.Friction,
9.             FrictionCombinePolicy = Unity.Physics.Material.Default.FrictionCombinePolicy,
10.             Restitution = Unity.Physics.Material.Default.Restitution,
11.             RestitutionCombinePolicy = Unity.Physics.Material.Default.RestitutionCombinePolicy,
12.         };
13.        
14.         var boxCollider = Unity.Physics.SphereCollider.Create(
15.             new SphereGeometry
16.             {
17.                 Center = new float3(0f,0f,0f),
18.                 Radius = 5f
19.             },
20.             CollisionFilter.Default,
21.             material
22.         );

For the system I have the following:

Code (CSharp):

1.  
2. [UpdateAfter(typeof(EndFramePhysicsSystem))]
3. public class TargetingSystem : JobComponentSystem
4. {
5.     BuildPhysicsWorld m_BuildPhysicsWorldSystem;
6.     StepPhysicsWorld m_StepPhysicsWorldSystem;
7.     private EntityQuery shipGroup;
8.     private EntityQuery baseGroup;
9.  
10.     protected override void OnCreate()
11.     {
12.         m_BuildPhysicsWorldSystem = World.GetOrCreateSystem<BuildPhysicsWorld>();
13.         m_StepPhysicsWorldSystem = World.GetOrCreateSystem<StepPhysicsWorld>();
14.      
15.         shipGroup = GetEntityQuery(typeof(Ship),typeof(Translation));
16.         baseGroup = GetEntityQuery(typeof(Base),typeof(Translation));
17.    
18.     }
19.    
20.     //[BurstCompile]
21.     public struct TargetingJob : ICollisionEventsJob
22.     {
23.         public float deltaTime;
24.         [ReadOnly]public ComponentDataFromEntity<Ship> ships;
25.         [ReadOnly]public ComponentDataFromEntity<Base> bases;
26.      
27.         public void Execute(CollisionEvent collisionEvent)
28.         {
29.             Entity entityA = collisionEvent.Entities.EntityA;
30.             Entity entityB = collisionEvent.Entities.EntityB;
31.          
32.             Debug.Log("collisions");
33.         }
34.      
35.     }
36.     protected override JobHandle OnUpdate(JobHandle inputDeps)
37.     {
38.         var job = new TargetingJob
39.         {
40.             deltaTime = Time.DeltaTime,
41.             ships = GetComponentDataFromEntity<Ship>(),
42.             bases = GetComponentDataFromEntity<Base>(),
43.         }.Schedule(m_StepPhysicsWorldSystem.Simulation,
44.             ref m_BuildPhysicsWorldSystem.PhysicsWorld, inputDeps);
45.              
46.         return job;
47.     }
48. }

The colliders work with raycasting so I can click on the ships and get a response that way. I can't get anything to happen within this system though.

 

Same for me @Zeraphan . Have you got a chance to find a solution?

 

You need to add a Physics Shape and Physics Body authoring and check "Raise Collision Events" in the Physics Body inspector. I'm not sure if you can do this from code, but if you can't, try creating a prefab with the authoring in place and flag checked, and instantiate that in your system