[Port] Telescope System / Система Прицеливания (#8)

* add: TelescopeSystem

* fix

* add: RU loc

Content.Client/Input/ContentContexts.cs

@@ -82,6 +82,7 @@ public static void SetupContexts(IInputContextContainer contexts)
             human.AddFunction(ContentKeyFunctions.Arcade1);
             human.AddFunction(ContentKeyFunctions.Arcade2);
             human.AddFunction(ContentKeyFunctions.Arcade3);
+            human.AddFunction(ContentKeyFunctions.LookUp); // WD EDIT
 
             // actions should be common (for ghosts, mobs, etc)
             common.AddFunction(ContentKeyFunctions.OpenActionsMenu);

Content.Client/Options/UI/Tabs/KeyRebindTab.xaml.cs

@@ -1,5 +1,6 @@
 using System.Numerics;
 using Content.Client.Stylesheets;
+using Content.Shared._White;
 using Content.Shared.CCVar;
 using Content.Shared.Input;
 using Robust.Client.AutoGenerated;
@@ -97,6 +98,12 @@ private void HandleToggleWalk(BaseButton.ButtonToggledEventArgs args)
             _deferCommands.Add(_inputManager.SaveToUserData);
         }
 
+        private void HandleHoldLookUp(BaseButton.ButtonToggledEventArgs args) // WD EDIT
+        {
+            _cfg.SetCVar(WhiteCVars.HoldLookUp, args.Pressed);
+            _cfg.SaveToFile();
+        }
+
         private void HandleStaticStorageUI(BaseButton.ButtonToggledEventArgs args)
         {
             _cfg.SetCVar(CCVars.StaticStorageUI, args.Pressed);
@@ -186,6 +193,8 @@ void AddCheckBox(string checkBoxName, bool currentState, Action<BaseButton.Butto
             AddButton(ContentKeyFunctions.OfferItem);
             AddButton(ContentKeyFunctions.SaveItemLocation);
             AddButton(ContentKeyFunctions.ToggleStanding);
+            AddButton(ContentKeyFunctions.LookUp); // WD EDIT
+            AddCheckBox("ui-options-function-hold-look-up", _cfg.GetCVar(WhiteCVars.HoldLookUp), HandleHoldLookUp); // WD EDIT
 
             AddHeader("ui-options-header-interaction-adv");
             AddButton(ContentKeyFunctions.SmartEquipBackpack);

Content.Client/_White/Telescope/TelescopeSystem.cs

@@ -0,0 +1,126 @@
+using System.Numerics;
+using Content.Client.Viewport;
+using Content.Shared._White;
+using Content.Shared._White.Telescope;
+using Content.Shared.Input;
+using Robust.Client.GameObjects;
+using Robust.Client.Graphics;
+using Robust.Client.Input;
+using Robust.Client.Player;
+using Robust.Client.UserInterface;
+using Robust.Shared.Configuration;
+using Robust.Shared.Input;
+using Robust.Shared.Input.Binding;
+using Robust.Shared.Timing;
+
+namespace Content.Client._White.Telescope;
+
+public sealed class TelescopeSystem : SharedTelescopeSystem
+{
+    [Dependency] private readonly InputSystem _inputSystem = default!;
+    [Dependency] private readonly IGameTiming _timing = default!;
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly IInputManager _input = default!;
+    [Dependency] private readonly IEyeManager _eyeManager = default!;
+    [Dependency] private readonly IUserInterfaceManager _uiManager = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+
+    private ScalingViewport? _viewport;
+    private bool _holdLookUp;
+    private bool _toggled;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        _cfg.OnValueChanged(WhiteCVars.HoldLookUp,
+            val =>
+            {
+                var input = val ? null : InputCmdHandler.FromDelegate(_ => _toggled = !_toggled);
+                _input.SetInputCommand(ContentKeyFunctions.LookUp, input);
+                _holdLookUp = val;
+                _toggled = false;
+            },
+            true);
+    }
+
+    public override void FrameUpdate(float frameTime)
+    {
+        base.FrameUpdate(frameTime);
+
+        if (_timing.ApplyingState || !_timing.IsFirstTimePredicted || !_input.MouseScreenPosition.IsValid)
+            return;
+
+        var player = _player.LocalEntity;
+
+        var telescope = GetRightTelescope(player);
+
+        if (telescope == null)
+        {
+            _toggled = false;
+            return;
+        }
+
+        if (!TryComp<EyeComponent>(player, out var eye))
+            return;
+
+        var offset = Vector2.Zero;
+
+        if (_holdLookUp)
+        {
+            if (_inputSystem.CmdStates.GetState(ContentKeyFunctions.LookUp) != BoundKeyState.Down)
+            {
+                RaiseEvent(offset);
+                return;
+            }
+        }
+        else if (!_toggled)
+        {
+            RaiseEvent(offset);
+            return;
+        }
+
+        var mousePos = _input.MouseScreenPosition;
+
+        if (_uiManager.MouseGetControl(mousePos) as ScalingViewport is { } viewport)
+            _viewport = viewport;
+
+        if (_viewport == null)
+            return;
+
+        var centerPos = _eyeManager.WorldToScreen(eye.Eye.Position.Position + eye.Offset);
+
+        var diff = mousePos.Position - centerPos;
+        var len = diff.Length();
+
+        var size = _viewport.PixelSize;
+
+        var maxLength = Math.Min(size.X, size.Y) * 0.4f;
+        var minLength = maxLength * 0.2f;
+
+        if (len > maxLength)
+        {
+            diff *= maxLength / len;
+            len = maxLength;
+        }
+
+        var divisor = maxLength * telescope.Divisor;
+
+        if (len > minLength)
+        {
+            diff -= diff * minLength / len;
+            offset = new Vector2(diff.X / divisor, -diff.Y / divisor);
+            offset = new Angle(-eye.Rotation.Theta).RotateVec(offset);
+        }
+
+        RaiseEvent(offset);
+    }
+
+    private void RaiseEvent(Vector2 offset)
+    {
+        RaisePredictiveEvent(new EyeOffsetChangedEvent
+        {
+            Offset = offset
+        });
+    }
+}

Content.Server/_White/Telescope/TelescopeSystem.cs

@@ -0,0 +1,5 @@
+using Content.Shared._White.Telescope;
+
+namespace Content.Server._White.Telescope;
+
+public sealed class TelescopeSystem : SharedTelescopeSystem;

Content.Shared/Input/ContentKeyFunctions.cs

@@ -57,6 +57,7 @@ public static class ContentKeyFunctions
         public static readonly BoundKeyFunction ResetZoom = "ResetZoom";
         public static readonly BoundKeyFunction OfferItem = "OfferItem";
         public static readonly BoundKeyFunction ToggleStanding = "ToggleStanding";
+        public static readonly BoundKeyFunction LookUp = "LookUp"; // WD EDIT
 
         public static readonly BoundKeyFunction ArcadeUp = "ArcadeUp";
         public static readonly BoundKeyFunction ArcadeDown = "ArcadeDown";

Content.Shared/_White/CVars.cs

@@ -0,0 +1,14 @@
+using Robust.Shared.Configuration;
+
+namespace Content.Shared._White;
+
+[CVarDefs]
+public sealed class WhiteCVars
+{
+    #region Keybind
+
+    public static readonly CVarDef<bool> HoldLookUp =
+        CVarDef.Create("white.hold_look_up", false, CVar.CLIENT | CVar.ARCHIVE);
+
+    #endregion
+}

Content.Shared/_White/Telescope/SharedTelescopeSystem.cs

@@ -0,0 +1,117 @@
+using System.Numerics;
+using Content.Shared.Camera;
+using Content.Shared.Hands;
+using Content.Shared.Hands.Components;
+using Content.Shared.Item;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared._White.Telescope;
+
+public abstract class SharedTelescopeSystem : EntitySystem
+{
+    [Dependency] private readonly SharedEyeSystem _eye = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeAllEvent<EyeOffsetChangedEvent>(OnEyeOffsetChanged);
+        SubscribeLocalEvent<TelescopeComponent, GotUnequippedHandEvent>(OnUnequip);
+        SubscribeLocalEvent<TelescopeComponent, HandDeselectedEvent>(OnHandDeselected);
+        SubscribeLocalEvent<TelescopeComponent, ComponentShutdown>(OnShutdown);
+    }
+
+    private void OnShutdown(Entity<TelescopeComponent> ent, ref ComponentShutdown args)
+    {
+        if (!TryComp(ent.Comp.LastEntity, out EyeComponent? eye) || ent.Comp.LastEntity == ent && TerminatingOrDeleted(ent))
+            return;
+
+        SetOffset((ent.Comp.LastEntity.Value, eye), Vector2.Zero, ent);
+    }
+
+    private void OnHandDeselected(Entity<TelescopeComponent> ent, ref HandDeselectedEvent args)
+    {
+        if (!TryComp(args.User, out EyeComponent? eye))
+            return;
+
+        SetOffset((args.User, eye), Vector2.Zero, ent);
+    }
+
+    private void OnUnequip(Entity<TelescopeComponent> ent, ref GotUnequippedHandEvent args)
+    {
+        if (!TryComp(args.User, out EyeComponent? eye))
+            return;
+
+        if (!HasComp<ItemComponent>(ent.Owner))
+            return;
+
+        SetOffset((args.User, eye), Vector2.Zero, ent);
+    }
+
+    public TelescopeComponent? GetRightTelescope(EntityUid? ent)
+    {
+        TelescopeComponent? telescope = null;
+
+        if (TryComp<HandsComponent>(ent, out var hands) &&
+            hands.ActiveHandEntity.HasValue &&
+            TryComp<TelescopeComponent>(hands.ActiveHandEntity, out var handTelescope))
+        {
+            telescope = handTelescope;
+        }
+        else if (TryComp<TelescopeComponent>(ent, out var entityTelescope))
+        {
+            telescope = entityTelescope;
+        }
+
+        return telescope;
+    }
+
+    private void OnEyeOffsetChanged(EyeOffsetChangedEvent msg, EntitySessionEventArgs args)
+    {
+        if (args.SenderSession.AttachedEntity is not { } ent)
+            return;
+
+        if (!TryComp(ent, out EyeComponent? eye))
+            return;
+
+        var telescope = GetRightTelescope(ent);
+
+        if (telescope == null)
+            return;
+
+        var offset = Vector2.Lerp(eye.Offset, msg.Offset, telescope.LerpAmount);
+
+        SetOffset((ent, eye), offset, telescope);
+    }
+
+    private void SetOffset(Entity<EyeComponent> ent, Vector2 offset, TelescopeComponent telescope)
+    {
+        telescope.LastEntity = ent;
+
+        if (TryComp(ent, out CameraRecoilComponent? recoil))
+        {
+            recoil.BaseOffset = offset;
+            _eye.SetOffset(ent, offset + recoil.CurrentKick, ent);
+        }
+        else
+        {
+            _eye.SetOffset(ent, offset, ent);
+        }
+    }
+
+    public void SetParameters(Entity<TelescopeComponent> ent, float? divisor = null, float? lerpAmount = null)
+    {
+        var telescope = ent.Comp;
+
+        telescope.Divisor = divisor ?? telescope.Divisor;
+        telescope.LerpAmount = lerpAmount ?? telescope.LerpAmount;
+
+        Dirty(ent.Owner, telescope);
+    }
+}
+
+[Serializable, NetSerializable]
+public sealed class EyeOffsetChangedEvent : EntityEventArgs
+{
+    public Vector2 Offset;
+}

Content.Shared/_White/Telescope/TelescopeComponent.cs

@@ -0,0 +1,16 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared._White.Telescope;
+
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+public sealed partial class TelescopeComponent : Component
+{
+    [DataField, ViewVariables(VVAccess.ReadWrite), AutoNetworkedField]
+    public float Divisor = 0.1f;
+
+    [DataField, ViewVariables(VVAccess.ReadWrite), AutoNetworkedField]
+    public float LerpAmount = 0.1f;
+
+    [ViewVariables]
+    public EntityUid? LastEntity;
+}

Resources/Locale/en-US/_white/escape-menu/options-menu.ftl

@@ -0,0 +1,2 @@
+ui-options-function-look-up = Look up/Take aim
+ui-options-function-hold-look-up = Hold down the key to aim

Resources/Locale/ru-RU/_white/escape-menu/options-menu.ftl

@@ -0,0 +1,2 @@
+ui-options-function-look-up = Присмотреться/Прицелиться
+ui-options-function-hold-look-up = Удерживать клавишу для прицеливания

Resources/Prototypes/Entities/Objects/Weapons/Guns/Snipers/snipers.yml

@@ -71,6 +71,7 @@
       - CartridgeAntiMateriel
     capacity: 5
     proto: CartridgeAntiMateriel
+  - type: Telescope # WD EDIT
 
 - type: entity
   name: musket

Resources/keybinds.yml

@@ -543,3 +543,7 @@ binds:
 - function: Hotbar9
   type: State
   key: Num9
+  #WD EDIT
+- function: LookUp
+  type: State
+  key: Space