Initial Commit

Assets/Scripts/Systems/Actor/ActorGrenadeSystem.cs

@@ -0,0 +1,70 @@
+using Events;
+using Items;
+using System;
+using Unity.Entities;
+using UnityEngine;
+using UnityEngine.AddressableAssets;
+using Zenject;
+
+namespace DefaultNamespace
+{
+	[UpdateInGroup(typeof(PresentationSystemGroup)), UpdateBefore(typeof(ActorAnimationEventResetSystem))]
+	public class ActorGrenadeSystem : InjectableComponentSystem
+	{
+		[Serializable]
+		public class Settings
+		{
+			public string GrenadeLayer;
+			public string GrenadeSortingLayer;
+			public float MaxThrowForce;
+		}
+
+		[Inject] private Settings settings;
+
+		protected override void OnSystemUpdate()
+		{
+			var deltaTime = Time.DeltaTime;
+
+			Entities.ForEach((ref ActorGrenadeData grenade) => { grenade.GrenadeTimer = Mathf.Max(0, grenade.GrenadeTimer - deltaTime); });
+
+			Entities.ForEach(
+				(Entity entity, ref FireGrenadeEvent e, ref ActorData actor, ref RigidBody2DData actorRigidBody) =>
+				{
+					var aim = actor.Aim;
+					var position = actorRigidBody.Position;
+
+					var grenadeLoadOperation = Addressables.LoadAssetAsync<GrenadeItem>(e.GrenadePrefab.ToString());
+					grenadeLoadOperation.Completed += operation => operation.Result.Template.InstantiateAsync().Completed += op =>
+					{
+						var center = position;
+						if (EntityManager.HasComponent<AimCenterData>(entity))
+						{
+							center += EntityManager.GetComponentData<AimCenterData>(entity).Offset;
+						}
+						var dir = (aim - center).normalized * settings.MaxThrowForce;
+						var grenadeEntityObj = op.Result;
+						grenadeEntityObj.gameObject.layer = LayerMask.NameToLayer(settings.GrenadeLayer);
+						var rigidBody = grenadeEntityObj.GetComponent<Rigidbody2D>();
+						if (rigidBody != null)
+						{
+							rigidBody.MovePosition(center);
+							rigidBody.velocity = dir;
+						}
+					};
+					PostUpdateCommands.RemoveComponent<FireGrenadeEvent>(entity);
+				});
+
+			Entities.WithNone<EntityDeathEvent>()
+				.ForEach(
+					(Entity entity, ref GrenadeData grenade) =>
+					{
+						grenade.Lifetime = Mathf.Max(0, grenade.Lifetime - deltaTime);
+
+						if (grenade.Lifetime <= 0)
+						{
+							PostUpdateCommands.AddComponent(entity, new EntityDeathEvent());
+						}
+					});
+		}
+	}
+}