Температурные пушки (#90)

* - add: Temperature guns.

* - tweak: Change cryo sting slowdown.

* - tweak: Tempgun tweaks.

* - add: Hardsuit temperature adjustment system.

Content.Server/_White/ChangeTemperatureOnCollide/LowTemperatureSlowdownSystem.cs

@@ -0,0 +1,52 @@
+using Content.Server.Temperature.Components;
+using Content.Server.Temperature.Systems;
+using Content.Shared.Movement.Components;
+using Content.Shared.Movement.Systems;
+
+namespace Content.Server._White.ChangeTemperatureOnCollide;
+
+public sealed class LowTemperatureSlowdownSystem : EntitySystem
+{
+    [Dependency] private readonly MovementSpeedModifierSystem _movementSpeedModifierSystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<MovementSpeedModifierComponent, OnTemperatureChangeEvent>(OnTemperatureChange);
+        SubscribeLocalEvent<TemperatureComponent, RefreshMovementSpeedModifiersEvent>(OnMoveSpeedRefresh);
+    }
+
+    private void OnMoveSpeedRefresh(EntityUid uid, TemperatureComponent component,
+        RefreshMovementSpeedModifiersEvent args)
+    {
+        var modifier = !component.Slowdown ? 1f : GetSpeedModifier(component.CurrentTemperature);
+        args.ModifySpeed(modifier, modifier);
+    }
+
+    private void OnTemperatureChange(EntityUid uid, MovementSpeedModifierComponent component,
+        OnTemperatureChangeEvent args)
+    {
+        // ReSharper disable once CompareOfFloatsByEqualityOperator
+        if(GetSpeedModifier(args.LastTemperature) == GetSpeedModifier(args.CurrentTemperature))
+            return;
+
+        _movementSpeedModifierSystem.RefreshMovementSpeedModifiers(uid, component);
+    }
+
+    private static float GetSpeedModifier(float temperature)
+    {
+        return temperature switch
+        {
+            > 290f => 1f,
+            > 280f => 0.9f,
+            > 260f => 0.8f,
+            > 230f => 0.7f,
+            > 200f => 0.6f,
+            > 160f => 0.5f,
+            > 110f => 0.4f,
+            > 50f => 0.3f,
+            _ => 0.2f
+        };
+    }
+}