ECS botany except for plantholder (#6466)

Content.Server/Botany/Systems/BotanySystem.Plant.cs

@@ -0,0 +1,87 @@
+using System.Collections.Generic;
+using Content.Server.Botany.Components;
+using Content.Server.Chemistry.EntitySystems;
+using Content.Server.Popups;
+using Content.Shared.GameTicking;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Random;
+
+namespace Content.Server.Botany.Systems
+{
+    [UsedImplicitly]
+    public sealed partial class BotanySystem : EntitySystem
+    {
+        [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+        [Dependency] private readonly PopupSystem _popupSystem = default!;
+        [Dependency] private readonly IRobustRandom _robustRandom = default!;
+        [Dependency] private readonly SolutionContainerSystem _solutionContainerSystem = default!;
+
+        private int _nextUid = 0;
+        private float _timer = 0f;
+
+        public readonly Dictionary<int, SeedPrototype> Seeds = new();
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            SubscribeLocalEvent<RoundRestartCleanupEvent>(Reset);
+
+            InitializeSeeds();
+
+            PopulateDatabase();
+        }
+
+        private void PopulateDatabase()
+        {
+            _nextUid = 0;
+
+            Seeds.Clear();
+
+            foreach (var seed in _prototypeManager.EnumeratePrototypes<SeedPrototype>())
+            {
+                AddSeedToDatabase(seed);
+            }
+        }
+
+        public bool AddSeedToDatabase(SeedPrototype seed)
+        {
+            // If it's not -1, it's already in the database. Probably.
+            if (seed.Uid != -1)
+                return false;
+
+            seed.Uid = GetNextSeedUid();
+            Seeds[seed.Uid] = seed;
+            return true;
+        }
+
+        private int GetNextSeedUid()
+        {
+            return _nextUid++;
+        }
+
+        public override void Update(float frameTime)
+        {
+            base.Update(frameTime);
+
+            _timer += frameTime;
+            if (_timer < 3f)
+                return;
+
+            _timer = 0f;
+
+            foreach (var plantHolder in EntityManager.EntityQuery<PlantHolderComponent>())
+            {
+                plantHolder.Update();
+            }
+        }
+
+        public void Reset(RoundRestartCleanupEvent ev)
+        {
+            PopulateDatabase();
+        }
+    }
+}