From 5c21b4e1743a7c05ba82aef80e6219e43ea859d3 Mon Sep 17 00:00:00 2001
From: Nemanja <98561806+EmoGarbage404@users.noreply.github.com>
Date: Thu, 22 Aug 2024 10:56:46 -0400
Subject: [PATCH] Small strange jackboots buff (#30586)

* Small strange jackboots buff

* Update ClothingSlowOnDamageModifierComponent.cs
---
 .../ClothingSlowOnDamageModifierComponent.cs  | 17 +++++++
 .../Damage/Systems/SlowOnDamageSystem.cs      | 45 ++++++++++++++++++-
 .../Inventory/InventorySystem.Relay.cs        |  1 +
 Resources/Locale/en-US/damage/stamina.ftl     |  1 +
 .../Entities/Clothing/Shoes/boots.yml         |  2 +
 .../Prototypes/Loadouts/loadout_groups.yml    |  1 -
 6 files changed, 65 insertions(+), 2 deletions(-)
 create mode 100644 Content.Shared/Damage/Components/ClothingSlowOnDamageModifierComponent.cs

diff --git a/Content.Shared/Damage/Components/ClothingSlowOnDamageModifierComponent.cs b/Content.Shared/Damage/Components/ClothingSlowOnDamageModifierComponent.cs
new file mode 100644
index 000000000000..3d4bdd597c30
--- /dev/null
+++ b/Content.Shared/Damage/Components/ClothingSlowOnDamageModifierComponent.cs
@@ -0,0 +1,17 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Damage.Components;
+
+/// <summary>
+/// This is used for a clothing item that modifies the slowdown from taking damage.
+/// Used for entities with <see cref="SlowOnDamageComponent"/>
+/// </summary>
+[RegisterComponent, NetworkedComponent, Access(typeof(SlowOnDamageSystem))]
+public sealed partial class ClothingSlowOnDamageModifierComponent : Component
+{
+    /// <summary>
+    /// A coefficient modifier for the slowdown
+    /// </summary>
+    [DataField]
+    public float Modifier = 1;
+}
diff --git a/Content.Shared/Damage/Systems/SlowOnDamageSystem.cs b/Content.Shared/Damage/Systems/SlowOnDamageSystem.cs
index 833883c144c5..3e50ee355724 100644
--- a/Content.Shared/Damage/Systems/SlowOnDamageSystem.cs
+++ b/Content.Shared/Damage/Systems/SlowOnDamageSystem.cs
@@ -1,5 +1,8 @@
+using Content.Shared.Clothing;
 using Content.Shared.Damage.Components;
+using Content.Shared.Examine;
 using Content.Shared.FixedPoint;
+using Content.Shared.Inventory;
 using Content.Shared.Movement.Systems;
 
 namespace Content.Shared.Damage
@@ -14,6 +17,11 @@ public override void Initialize()
 
             SubscribeLocalEvent<SlowOnDamageComponent, DamageChangedEvent>(OnDamageChanged);
             SubscribeLocalEvent<SlowOnDamageComponent, RefreshMovementSpeedModifiersEvent>(OnRefreshMovespeed);
+
+            SubscribeLocalEvent<ClothingSlowOnDamageModifierComponent, InventoryRelayedEvent<ModifySlowOnDamageSpeedEvent>>(OnModifySpeed);
+            SubscribeLocalEvent<ClothingSlowOnDamageModifierComponent, ExaminedEvent>(OnExamined);
+            SubscribeLocalEvent<ClothingSlowOnDamageModifierComponent, ClothingGotEquippedEvent>(OnGotEquipped);
+            SubscribeLocalEvent<ClothingSlowOnDamageModifierComponent, ClothingGotUnequippedEvent>(OnGotUnequipped);
         }
 
         private void OnRefreshMovespeed(EntityUid uid, SlowOnDamageComponent component, RefreshMovementSpeedModifiersEvent args)
@@ -36,7 +44,10 @@ private void OnRefreshMovespeed(EntityUid uid, SlowOnDamageComponent component,
             if (closest != FixedPoint2.Zero)
             {
                 var speed = component.SpeedModifierThresholds[closest];
-                args.ModifySpeed(speed, speed);
+
+                var ev = new ModifySlowOnDamageSpeedEvent(speed);
+                RaiseLocalEvent(uid, ref ev);
+                args.ModifySpeed(ev.Speed, ev.Speed);
             }
         }
 
@@ -47,5 +58,37 @@ private void OnDamageChanged(EntityUid uid, SlowOnDamageComponent component, Dam
 
             _movementSpeedModifierSystem.RefreshMovementSpeedModifiers(uid);
         }
+
+        private void OnModifySpeed(Entity<ClothingSlowOnDamageModifierComponent> ent, ref InventoryRelayedEvent<ModifySlowOnDamageSpeedEvent> args)
+        {
+            var dif = 1 - args.Args.Speed;
+            if (dif <= 0)
+                return;
+
+            // reduces the slowness modifier by the given coefficient
+            args.Args.Speed += dif * ent.Comp.Modifier;
+        }
+
+        private void OnExamined(Entity<ClothingSlowOnDamageModifierComponent> ent, ref ExaminedEvent args)
+        {
+            var msg = Loc.GetString("slow-on-damage-modifier-examine", ("mod", (1 - ent.Comp.Modifier) * 100));
+            args.PushMarkup(msg);
+        }
+
+        private void OnGotEquipped(Entity<ClothingSlowOnDamageModifierComponent> ent, ref ClothingGotEquippedEvent args)
+        {
+            _movementSpeedModifierSystem.RefreshMovementSpeedModifiers(args.Wearer);
+        }
+
+        private void OnGotUnequipped(Entity<ClothingSlowOnDamageModifierComponent> ent, ref ClothingGotUnequippedEvent args)
+        {
+            _movementSpeedModifierSystem.RefreshMovementSpeedModifiers(args.Wearer);
+        }
+    }
+
+    [ByRefEvent]
+    public record struct ModifySlowOnDamageSpeedEvent(float Speed) : IInventoryRelayEvent
+    {
+        public SlotFlags TargetSlots => SlotFlags.WITHOUT_POCKET;
     }
 }
diff --git a/Content.Shared/Inventory/InventorySystem.Relay.cs b/Content.Shared/Inventory/InventorySystem.Relay.cs
index bca9eb6cfa23..f0bb73c1922c 100644
--- a/Content.Shared/Inventory/InventorySystem.Relay.cs
+++ b/Content.Shared/Inventory/InventorySystem.Relay.cs
@@ -34,6 +34,7 @@ public void InitializeRelay()
         // by-ref events
         SubscribeLocalEvent<InventoryComponent, GetExplosionResistanceEvent>(RefRelayInventoryEvent);
         SubscribeLocalEvent<InventoryComponent, IsWeightlessEvent>(RefRelayInventoryEvent);
+        SubscribeLocalEvent<InventoryComponent, ModifySlowOnDamageSpeedEvent>(RefRelayInventoryEvent);
 
         // Eye/vision events
         SubscribeLocalEvent<InventoryComponent, CanSeeAttemptEvent>(RelayInventoryEvent);
diff --git a/Resources/Locale/en-US/damage/stamina.ftl b/Resources/Locale/en-US/damage/stamina.ftl
index 0d14a52c1ee0..da817824aa18 100644
--- a/Resources/Locale/en-US/damage/stamina.ftl
+++ b/Resources/Locale/en-US/damage/stamina.ftl
@@ -1 +1,2 @@
 melee-stamina = Not enough stamina
+slow-on-damage-modifier-examine = Slowness from injuries is reduced by [color=yellow]{$mod}%[/color]
diff --git a/Resources/Prototypes/Entities/Clothing/Shoes/boots.yml b/Resources/Prototypes/Entities/Clothing/Shoes/boots.yml
index fddb5abb5897..32fd118f1cc6 100644
--- a/Resources/Prototypes/Entities/Clothing/Shoes/boots.yml
+++ b/Resources/Prototypes/Entities/Clothing/Shoes/boots.yml
@@ -20,6 +20,8 @@
     sprite: Clothing/Shoes/Boots/jackboots.rsi
   - type: Clothing
     sprite: Clothing/Shoes/Boots/jackboots.rsi
+  - type: ClothingSlowOnDamageModifier
+    modifier: 0.5
 
 - type: entity
   parent: ClothingShoesBaseButcherable
diff --git a/Resources/Prototypes/Loadouts/loadout_groups.yml b/Resources/Prototypes/Loadouts/loadout_groups.yml
index 685b0c784fa3..868fb1f7d214 100644
--- a/Resources/Prototypes/Loadouts/loadout_groups.yml
+++ b/Resources/Prototypes/Loadouts/loadout_groups.yml
@@ -993,7 +993,6 @@
   id: SecurityShoes
   name: loadout-group-security-shoes
   loadouts:
-  - CombatBoots
   - JackBoots
   - SecurityWinterBoots