Remove ILand (#4582)

* Remove ILand

* Make land not handleable

* Rename ILand

Content.Server/Damage/Systems/DamageOnLandSystem.cs

@@ -0,0 +1,35 @@
+using Content.Server.Damage.Components;
+using Content.Shared.Damage;
+using Content.Shared.Damage.Components;
+using Content.Shared.Throwing;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Prototypes;
+
+namespace Content.Server.Damage.Systems
+{
+    public sealed class DamageOnLandSystem : EntitySystem
+    {
+        [Dependency] private readonly IPrototypeManager _protoManager = default!;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            SubscribeLocalEvent<DamageOnLandComponent, ComponentInit>(HandleInit);
+            SubscribeLocalEvent<DamageOnLandComponent, LandEvent>(DamageOnLand);
+        }
+
+        private void HandleInit(EntityUid uid, DamageOnLandComponent component, ComponentInit args)
+        {
+            component.DamageType = _protoManager.Index<DamageTypePrototype>(component.DamageTypeId);
+        }
+
+        private void DamageOnLand(EntityUid uid, DamageOnLandComponent component, LandEvent args)
+        {
+            if (!ComponentManager.TryGetComponent<IDamageableComponent>(uid, out var damageable))
+                return;
+
+            damageable.TryChangeDamage(component.DamageType, component.Amount, component.IgnoreResistances);
+        }
+    }
+}