From c4a92fdfa306b5f9a239940ae54e029bce64bbd5 Mon Sep 17 00:00:00 2001
From: Nemanja <98561806+EmoGarbage404@users.noreply.github.com>
Date: Sun, 12 Feb 2023 15:17:54 -0500
Subject: [PATCH] Meat Anomaly Tweaks (#14026)

* Meat Anomaly Tweaks

* 50%
---
 .../Components/FleshAnomalyComponent.cs       |  4 +-
 .../Components/DamageContactsComponent.cs     | 20 ++++++
 .../Components/DamagedByContactComponent.cs   | 14 ++++
 .../Damage/Systems/DamageContactsSystem.cs    | 72 +++++++++++++++++++
 .../Entities/Objects/Misc/kudzu.yml           | 13 +++-
 5 files changed, 118 insertions(+), 5 deletions(-)
 create mode 100644 Content.Shared/Damage/Components/DamageContactsComponent.cs
 create mode 100644 Content.Shared/Damage/Components/DamagedByContactComponent.cs
 create mode 100644 Content.Shared/Damage/Systems/DamageContactsSystem.cs

diff --git a/Content.Shared/Anomaly/Effects/Components/FleshAnomalyComponent.cs b/Content.Shared/Anomaly/Effects/Components/FleshAnomalyComponent.cs
index abd0b01939..88b3ff061c 100644
--- a/Content.Shared/Anomaly/Effects/Components/FleshAnomalyComponent.cs
+++ b/Content.Shared/Anomaly/Effects/Components/FleshAnomalyComponent.cs
@@ -19,7 +19,7 @@ public sealed class FleshAnomalyComponent : Component
     /// scales with severity.
     /// </summary>
     [DataField("maxSpawnAmount"), ViewVariables(VVAccess.ReadWrite)]
-    public int MaxSpawnAmount = 8;
+    public int MaxSpawnAmount = 7;
 
     /// <summary>
     /// The maximum radius the entities will spawn in.
@@ -27,7 +27,7 @@ public sealed class FleshAnomalyComponent : Component
     /// scales with stability
     /// </summary>
     [DataField("spawnRange"), ViewVariables(VVAccess.ReadWrite)]
-    public float SpawnRange = 4f;
+    public float SpawnRange = 5f;
 
     /// <summary>
     /// The tile that is spawned by the anomaly's effect
diff --git a/Content.Shared/Damage/Components/DamageContactsComponent.cs b/Content.Shared/Damage/Components/DamageContactsComponent.cs
new file mode 100644
index 0000000000..3eedda7fc6
--- /dev/null
+++ b/Content.Shared/Damage/Components/DamageContactsComponent.cs
@@ -0,0 +1,20 @@
+using Content.Shared.Whitelist;
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Damage.Components;
+
+[NetworkedComponent, RegisterComponent]
+public sealed class DamageContactsComponent : Component
+{
+    /// <summary>
+    /// The damage done each second to those touching this entity
+    /// </summary>
+    [DataField("damage", required: true)]
+    public DamageSpecifier Damage = new();
+
+    /// <summary>
+    /// Entities that aren't damaged by this entity
+    /// </summary>
+    [DataField("ignoreWhitelist")]
+    public EntityWhitelist? IgnoreWhitelist;
+}
diff --git a/Content.Shared/Damage/Components/DamagedByContactComponent.cs b/Content.Shared/Damage/Components/DamagedByContactComponent.cs
new file mode 100644
index 0000000000..1b4c2999aa
--- /dev/null
+++ b/Content.Shared/Damage/Components/DamagedByContactComponent.cs
@@ -0,0 +1,14 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+
+namespace Content.Shared.Damage.Components;
+
+[NetworkedComponent, RegisterComponent]
+public sealed class DamagedByContactComponent : Component
+{
+    [DataField("nextSecond", customTypeSerializer: typeof(TimeOffsetSerializer)), ViewVariables(VVAccess.ReadWrite)]
+    public TimeSpan NextSecond = TimeSpan.Zero;
+
+    [ViewVariables]
+    public DamageSpecifier? Damage;
+}
diff --git a/Content.Shared/Damage/Systems/DamageContactsSystem.cs b/Content.Shared/Damage/Systems/DamageContactsSystem.cs
new file mode 100644
index 0000000000..891526bbb0
--- /dev/null
+++ b/Content.Shared/Damage/Systems/DamageContactsSystem.cs
@@ -0,0 +1,72 @@
+using Content.Shared.Damage.Components;
+using Robust.Shared.Physics.Components;
+using Robust.Shared.Physics.Events;
+using Robust.Shared.Physics.Systems;
+using Robust.Shared.Timing;
+
+namespace Content.Shared.Damage.Systems;
+
+public sealed class DamageContactsSystem : EntitySystem
+{
+    [Dependency] private readonly IGameTiming _timing = default!;
+    [Dependency] private readonly DamageableSystem _damageable = default!;
+    [Dependency] private readonly SharedPhysicsSystem _physics = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<DamageContactsComponent, StartCollideEvent>(OnEntityEnter);
+        SubscribeLocalEvent<DamageContactsComponent, EndCollideEvent>(OnEntityExit);
+    }
+
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        foreach (var damaged in EntityQuery<DamagedByContactComponent>())
+        {
+            var ent = damaged.Owner;
+            if (_timing.CurTime < damaged.NextSecond)
+                continue;
+            damaged.NextSecond = _timing.CurTime + TimeSpan.FromSeconds(1);
+
+            if (damaged.Damage != null)
+                _damageable.TryChangeDamage(ent, damaged.Damage, interruptsDoAfters: false);
+        }
+    }
+
+    private void OnEntityExit(EntityUid uid, DamageContactsComponent component, ref EndCollideEvent args)
+    {
+        var otherUid = args.OtherFixture.Body.Owner;
+
+        if (!TryComp<PhysicsComponent>(uid, out var body))
+            return;
+
+        var damageQuery = GetEntityQuery<DamageContactsComponent>();
+        foreach (var contact in _physics.GetContactingEntities(body))
+        {
+            var ent = contact.Owner;
+            if (ent == uid)
+                continue;
+
+            if (damageQuery.HasComponent(ent))
+                return;
+        }
+
+        RemComp<DamagedByContactComponent>(otherUid);
+    }
+
+    private void OnEntityEnter(EntityUid uid, DamageContactsComponent component, ref StartCollideEvent args)
+    {
+        var otherUid = args.OtherFixture.Body.Owner;
+
+        if (HasComp<DamagedByContactComponent>(otherUid))
+            return;
+
+        if (component.IgnoreWhitelist?.IsValid(otherUid) ?? false)
+            return;
+
+        var damagedByContact = EnsureComp<DamagedByContactComponent>(otherUid);
+        damagedByContact.Damage = component.Damage;
+    }
+}
diff --git a/Resources/Prototypes/Entities/Objects/Misc/kudzu.yml b/Resources/Prototypes/Entities/Objects/Misc/kudzu.yml
index 96b6da1be0..4d141dceb5 100644
--- a/Resources/Prototypes/Entities/Objects/Misc/kudzu.yml
+++ b/Resources/Prototypes/Entities/Objects/Misc/kudzu.yml
@@ -122,10 +122,17 @@
           acts: [ "Destruction" ]
     - type: Spreader
       growthResult: FleshKudzu
-      chance: 1
+      chance: 0.5
+    - type: DamageContacts
+      damage:
+        types:
+          Slash: 1.5
+      ignoreWhitelist:
+        tags:
+        - Flesh
     - type: SlowContacts
-      walkSpeedModifier: 0.2
-      sprintSpeedModifier: 0.2
+      walkSpeedModifier: 0.3
+      sprintSpeedModifier: 0.3
       ignoreWhitelist:
         tags:
         - Flesh
-- 
2.52.0