Remove AsyncUtils, fix FlyCam and GetThingLookedAt()

TechbloxModdingAPI/Events/GameActivatedComposePatch.cs

@@ -28,8 +28,6 @@ namespace TechbloxModdingAPI.Events
         {
             // register custom game engines
 			GameEngineManager.RegisterEngines(enginesRoot);
-			// initialize AsyncUtils
-			AsyncUtils.Setup(enginesRoot);
 			// A new EnginesRoot is always created when ActivateGame is called
             // so all event emitters and handlers must be re-registered.
 			EventManager.RegisterEngines(enginesRoot);

TechbloxModdingAPI/Main.cs

@@ -84,11 +84,11 @@ namespace TechbloxModdingAPI
 			Input.FakeInput.Init();
 			// init object-oriented classes
 			Player.Init();
+            FlyCam.Init();
             Block.Init();
             BlockGroup.Init();
             Wire.Init();
             GameClient.Init();
-            AsyncUtils.Init();
 			Client.Init();
 			Game.Init();
             //CustomBlock.Init();

TechbloxModdingAPI/Player.cs

@@ -386,8 +386,8 @@ namespace TechbloxModdingAPI
         public Block GetBlockLookedAt(float maxDistance = -1f)
         {
 	        var egid = playerEngine.GetThingLookedAt(Id, maxDistance);
-	        return egid.HasValue && egid.Value.groupID != CommonExclusiveGroups.SIMULATION_BODIES_GROUP
+	        return egid != EGID.Empty && egid.groupID != CommonExclusiveGroups.SIMULATION_BODIES_GROUP
-		        ? new Block(egid.Value)
+		        ? new Block(egid)
 		        : null;
         }
         
@@ -399,8 +399,8 @@ namespace TechbloxModdingAPI
         public SimBody GetSimBodyLookedAt(float maxDistance = -1f)
         {
 	        var egid = playerEngine.GetThingLookedAt(Id, maxDistance);
-	        return egid.HasValue && egid.Value.groupID == CommonExclusiveGroups.SIMULATION_BODIES_GROUP
+	        return egid != EGID.Empty && egid.groupID == CommonExclusiveGroups.SIMULATION_BODIES_GROUP
-		        ? new SimBody(egid.Value)
+		        ? new SimBody(egid)
 		        : null;
         }
 

TechbloxModdingAPI/Players/PlayerEngine.cs

@@ -438,20 +438,20 @@ namespace TechbloxModdingAPI.Players
             return false;
         }
 
-        public EGID? GetThingLookedAt(uint playerId, float maxDistance = -1f)
+        public EGID GetThingLookedAt(uint playerId, float maxDistance = -1f)
         {
 	        if (!entitiesDB.TryQueryMappedEntities<CharacterCameraRayCastEntityStruct>(
 		        CameraExclusiveGroups.CameraGroup, out var mapper))
-		        return null;
+		        return EGID.Empty;
 	        mapper.TryGetEntity(playerId, out CharacterCameraRayCastEntityStruct rayCast);
 	        float distance = maxDistance < 0
 		        ? GhostBlockUtils.GetBuildInteractionDistance(entitiesDB, rayCast,
 			        GhostBlockUtils.GhostCastMethod.GhostCastProportionalToBlockSize)
 		        : maxDistance;
 	        if (rayCast.hit && rayCast.distance <= distance)
-		        return rayCast.hitEgid;
+		        return rayCast.hitEgid; //May be EGID.Empty
 
-	        return null;
+	        return EGID.Empty;
         }
 
         public unsafe Block[] GetSelectedBlocks(uint playerid)

TechbloxModdingAPI/Utility/AsyncUtils.cs

@@ -1,35 +0,0 @@
-using System.Threading.Tasks;
-
-using Svelto.ECS;
-
-namespace TechbloxModdingAPI.Utility
-{
-    public static class AsyncUtils
-    {
-        private static AsyncUtilsEngine gameEngine = new AsyncUtilsEngine();
-
-        /// <summary>
-        /// Waits for entity submission asynchronously.
-        /// Use after placing a block or otherwise creating things in the game to access their properties.
-        /// </summary>
-        public static async Task WaitForSubmission()
-        {
-            await gameEngine.WaitForSubmission();
-        }
-
-        public static async Task WaitForNextFrame()
-        {
-            await gameEngine.WaitForNextFrame();
-        }
-
-        public static void Setup(EnginesRoot enginesRoot)
-        {
-            gameEngine.Setup(enginesRoot.GenerateEntityFunctions(), enginesRoot.GenerateEntityFactory());
-        }
-
-        public static void Init()
-        {
-            GameEngineManager.AddGameEngine(gameEngine);
-        }
-    }
-}

TechbloxModdingAPI/Utility/AsyncUtilsEngine.cs

@@ -1,63 +0,0 @@
-using System.Collections;
-using System.Threading.Tasks;
-
-using RobocraftX.Schedulers;
-using Svelto.ECS;
-using Svelto.Tasks.ExtraLean;
-using TechbloxModdingAPI.Engines;
-
-namespace TechbloxModdingAPI.Utility
-{
-    public class AsyncUtilsEngine : IApiEngine
-    {
-        private IEntityFunctions _efu;
-        private IEntityFactory _efa;
-        private IEnumerator WaitForSubmissionInternal(IEntityFunctions efu, IEntityFactory efa,
-            EntitiesDB entitiesDB, TaskCompletionSource<object> task)
-        {
-            /*var waitEnumerator = new WaitForSubmissionEnumerator(efu, efa, entitiesDB);
-            while (waitEnumerator.MoveNext())
-                yield return null;
-            task.SetResult(null);*/
-            yield break; //TODO
-        }
-
-        private IEnumerator WaitForNextFrameInternal(TaskCompletionSource<object> task)
-        {
-            yield return null;
-            task.SetResult(null);
-        }
-
-        public Task WaitForSubmission()
-        {
-            var task = new TaskCompletionSource<object>();
-            WaitForSubmissionInternal(_efu, _efa, entitiesDB, task).RunOn(ExtraLean.EveryFrameStepRunner_TimeStopped);
-            return task.Task;
-        }
-
-        public Task WaitForNextFrame()
-        {
-            var task = new TaskCompletionSource<object>();
-            WaitForNextFrameInternal(task).RunOn(ExtraLean.EveryFrameStepRunner_TimeStopped);
-            return task.Task;
-        }
-
-        public void Setup(IEntityFunctions efu, IEntityFactory efa)
-        {
-            _efu = efu;
-            _efa = efa;
-        }
-
-        public void Ready()
-        {
-        }
-
-        public EntitiesDB entitiesDB { get; set; }
-        public void Dispose()
-        {
-        }
-
-        public string Name { get; } = "TechbloxModdingAPIAsyncUtilsGameEngine";
-        public bool isRemovable { get; } = false;
-    }
-}