ECS vapors (#4308)

* ECS vapors

* tweak

* Reviews

* man my git must be laggin is yours laggin

Content.Server/Chemistry/Components/VaporComponent.cs

@@ -1,131 +1,24 @@
-using System.Linq;
-using Content.Shared.Chemistry.Reagent;
-using Content.Shared.Chemistry.Solution;
-using Content.Shared.Physics;
+using Content.Shared.Chemistry.Reagent;
 using Content.Shared.Vapor;
 using Robust.Shared.GameObjects;
-using Robust.Shared.IoC;
 using Robust.Shared.Map;
-using Robust.Shared.Maths;
-using Robust.Shared.Physics.Collision;
-using Robust.Shared.Physics.Dynamics;
-using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization.Manager.Attributes;
 using Robust.Shared.ViewVariables;
 
 namespace Content.Server.Chemistry.Components
 {
     [RegisterComponent]
-    class VaporComponent : SharedVaporComponent, IStartCollide
+    internal sealed class VaporComponent : SharedVaporComponent
     {
-        public const float ReactTime = 0.125f;
-
-        [Dependency] private readonly IMapManager _mapManager = default!;
-        [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
-
         [ViewVariables]
         [DataField("transferAmount")]
-        private ReagentUnit _transferAmount = ReagentUnit.New(0.5);
+        internal ReagentUnit TransferAmount = ReagentUnit.New(0.5);
 
-        private bool _reached;
-        private float _reactTimer;
-        private float _timer;
-        private EntityCoordinates _target;
-        private bool _running;
-        private float _aliveTime;
-
-        protected override void Initialize()
-        {
-            base.Initialize();
-
-            Owner.EnsureComponentWarn(out SolutionContainerComponent _);
-        }
-
-        public void Start(Vector2 dir, float speed, EntityCoordinates target, float aliveTime)
-        {
-            _running = true;
-            _target = target;
-            _aliveTime = aliveTime;
-            // Set Move
-            if (Owner.TryGetComponent(out PhysicsComponent? physics))
-            {
-                physics.BodyStatus = BodyStatus.InAir;
-                physics.ApplyLinearImpulse(dir * speed);
-            }
-        }
-
-        public void Update(float frameTime)
-        {
-            if (!Owner.TryGetComponent(out SolutionContainerComponent? contents))
-                return;
-
-            if (!_running)
-                return;
-
-            _timer += frameTime;
-            _reactTimer += frameTime;
-
-            if (_reactTimer >= ReactTime && Owner.Transform.GridID.IsValid())
-            {
-                _reactTimer = 0;
-                var mapGrid = _mapManager.GetGrid(Owner.Transform.GridID);
-
-                var tile = mapGrid.GetTileRef(Owner.Transform.Coordinates.ToVector2i(Owner.EntityManager, _mapManager));
-                foreach (var reagentQuantity in contents.ReagentList.ToArray())
-                {
-                    if (reagentQuantity.Quantity == ReagentUnit.Zero) continue;
-                    var reagent = _prototypeManager.Index<ReagentPrototype>(reagentQuantity.ReagentId);
-                    contents.TryRemoveReagent(reagentQuantity.ReagentId, reagent.ReactionTile(tile, (reagentQuantity.Quantity / _transferAmount) * 0.25f));
-                }
-            }
-
-            // Check if we've reached our target.
-            if(!_reached && _target.TryDistance(Owner.EntityManager, Owner.Transform.Coordinates, out var distance) && distance <= 0.5f)
-            {
-                _reached = true;
-            }
-
-            if (contents.CurrentVolume == 0 || _timer > _aliveTime)
-            {
-                // Delete this
-                Owner.Delete();
-            }
-        }
-
-        internal bool TryAddSolution(Solution solution)
-        {
-            if (solution.TotalVolume == 0)
-            {
-                return false;
-            }
-
-            if (!Owner.TryGetComponent(out SolutionContainerComponent? contents))
-            {
-                return false;
-            }
-
-            var result = contents.TryAddSolution(solution);
-
-            if (!result)
-            {
-                return false;
-            }
-
-            return true;
-        }
-
-        void IStartCollide.CollideWith(Fixture ourFixture, Fixture otherFixture, in Manifold manifold)
-        {
-            if (!Owner.TryGetComponent(out SolutionContainerComponent? contents))
-                return;
-
-            contents.Solution.DoEntityReaction(otherFixture.Body.Owner, ReactionMethod.Touch);
-
-            // Check for collision with a impassable object (e.g. wall) and stop
-            if ((otherFixture.CollisionLayer & (int) CollisionGroup.Impassable) != 0 && otherFixture.Hard)
-            {
-                Owner.QueueDelete();
-            }
-        }
+        internal bool Reached;
+        internal float ReactTimer;
+        internal float Timer;
+        internal EntityCoordinates Target;
+        internal bool Active;
+        internal float AliveTime;
     }
 }