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Question by Plasmajam · Apr 21, 2019 at 06:40 PM · raycastinputdots

Is there a way to use Physics.Raycast to find an Entity?

Is there a way to use Physics.Raycast to find an entity?

Based on the HelloSpawnerProxy.cs code in the HelloECS sample, I'm using a proxy that converts a GameObject into an entity and trying to select an entity with a raycast on a mouse click.

In my scene, a spawner creates a cube entity from a prefab. The raycast from the camera, through the mouse position, toward the entity doesn't hit any entity. If I add a built in 3D cube, the ray cast hits when I click on it. In the 2019.1 beta, there were no proxies and the raycasting worked. I'm using 2019.1.0f2 which seems to require proxies but the raycasting no longer works.

     //UnitSpawnerProxy
     public void Convert(Entity entity, EntityManager dstManager, GameObjectConversionSystem conversionSystem)
     {
         var spawnerData = new UnitSpawner
         {
             // The referenced prefab will be converted due to DeclareReferencedPrefabs.
             // So here we simply map the game object to an entity reference to that prefab.
             prefab = conversionSystem.GetPrimaryEntity(prefab)
         };
         dstManager.AddComponentData(entity, spawnerData);
     }


     //PlayerInputSystem
     protected override JobHandle OnUpdate(JobHandle inputDeps)
     {
         Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
 
         var mousePos = Input.mousePosition;
 
         if (Physics.Raycast(ray, out RaycastHit hit)) {            
             //do something
         }

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