Initial Commit

Assets/Scripts/AI/FindTargetPlayerGoapAction.cs

@@ -0,0 +1,59 @@
+using DefaultNamespace;
+using Unity.Entities;
+using UnityEngine;
+
+namespace AI
+{
+	public struct FindTargetPlayerGoapAction : IComponentData
+	{
+	}
+
+	public class FindTargetPlayerGoapActionSystem : GoapActionSystem<FindTargetPlayerGoapAction>
+	{
+		protected override void OnInitialize(ref FindTargetPlayerGoapAction action, ref GoapSharedAction goapSharedAction)
+		{
+			goapSharedAction.Cost = 10;
+			goapSharedAction.Effects.Add((GoapKeys.HasTarget, true));
+		}
+
+		protected override void OnProcess(
+			ref FindTargetPlayerGoapAction action,
+			ref GoapSharedAction goapSharedAction,
+			GoapAction goapAction,
+			GoapActionActor actor,
+			ref GoapActiveAction active)
+		{
+			EntityManager.SetComponentData(actor.Actor, new ActorTargetData { Target = goapAction.Target });
+			active.Done = true;
+		}
+
+		protected override bool OnValidate(
+			ref FindTargetPlayerGoapAction action,
+			ref GoapSharedAction goapSharedAction,
+			ref GoapAction goapAction,
+			GoapActionActor actor)
+		{
+			if (!EntityManager.HasComponents<Rigidbody2D, ActorTargetData>(actor.Actor))
+			{
+				return false;
+			}
+
+			var closestDist = float.MaxValue;
+			var actorRigidBody = EntityManager.GetComponentObject<Rigidbody2D>(actor.Actor);
+			var playerEntity = Entity.Null;
+
+			Entities.ForEach(
+				(Entity entity, Rigidbody2D rigidbody, ref PlayerData playerData) =>
+				{
+					var d = Vector2.SqrMagnitude(actorRigidBody.position - rigidbody.position);
+					if (d < closestDist)
+					{
+						closestDist = d;
+						playerEntity = entity;
+					}
+				});
+
+			return playerEntity != Entity.Null;
+		}
+	}
+}