Merge pull request Simple-Station#120 from Mnemotechnician/feat/leash

Leashes

Content.Client/Physics/JointVisualsOverlay.cs

@@ -1,7 +1,9 @@
+using System.Numerics;
 using Content.Shared.Physics;
 using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
 using Robust.Shared.Enums;
+using Robust.Shared.Map;
 using Robust.Shared.Physics;
 using Robust.Shared.Physics.Dynamics.Joints;
 
@@ -27,6 +29,8 @@ protected override void Draw(in OverlayDrawArgs args)
     {
         _drawn.Clear();
         var worldHandle = args.WorldHandle;
+        // Floofstation: fix incorrect drawing box location due to incorrect coordinate system
+        worldHandle.SetTransform(Vector2.Zero, Angle.Zero);
 
         var spriteSystem = _entManager.System<SpriteSystem>();
         var xformSystem = _entManager.System<SharedTransformSystem>();

Content.Shared/Floofstation/Leash/Components/LeashAnchorComponent.cs

@@ -0,0 +1,9 @@
+namespace Content.Shared.Floofstation.Leash.Components;
+
+/// <summary>
+///     Indicates that this entity or the entity that wears this entity can be leashed.
+/// </summary>
+[RegisterComponent]
+public sealed partial class LeashAnchorComponent : Component
+{
+}

Content.Shared/Floofstation/Leash/Components/LeashComponent.cs

@@ -0,0 +1,103 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+using Robust.Shared.Utility;
+
+namespace Content.Shared.Floofstation.Leash.Components;
+
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+public sealed partial class LeashComponent : Component
+{
+    /// <summary>
+    ///     Maximum number of leash joints that this entity can create.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public int MaxJoints = 1;
+
+    /// <summary>
+    ///     Default length of the leash joint.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public float Length = 3.5f;
+
+    /// <summary>
+    ///     Maximum distance between the anchor and the puller beyond which the leash will break.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public float MaxDistance = 8f;
+
+    /// <summary>
+    ///     The time it takes for one entity to attach/detach the leash to/from another entity.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public TimeSpan AttachDelay = TimeSpan.FromSeconds(2f), DetachDelay = TimeSpan.FromSeconds(2f);
+
+    /// <summary>
+    ///     The time it takes for the leashed entity to detach itself from this leash.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public TimeSpan SelfDetachDelay = TimeSpan.FromSeconds(8f);
+
+    [DataField, AutoNetworkedField]
+    public SpriteSpecifier? LeashSprite;
+
+    [DataField]
+    public TimeSpan NextPull = TimeSpan.Zero;
+
+    [DataField, AutoNetworkedField]
+    public TimeSpan PullInterval = TimeSpan.FromSeconds(1.5f);
+
+    /// <summary>
+    ///     How much damage each leash joint can sustain before it breaks.
+    /// </summary>
+    /// <remarks>Not currently implemented; needs to be reworked in order to work.</remarks>
+    [DataField, AutoNetworkedField]
+    public float BreakDamage = 20f;
+
+    /// <summary>
+    ///     How much damage each leash joint loses every <see cref="DamageInterval"/>.
+    /// </summary>
+    /// <remarks>Not currently implemented; needs to be reworked in order to work.</remarks>
+    [DataField, AutoNetworkedField]
+    public float JointRepairDamage = 1f;
+
+    /// <summary>
+    ///     Interval at which damage is calculated for each joint.
+    /// </summary>
+    /// <remarks>Not currently implemented; needs to be reworked in order to work.</remarks>
+    [DataField, AutoNetworkedField]
+    public TimeSpan DamageInterval = TimeSpan.FromMilliseconds(200);
+
+    /// <summary>
+    ///     List of all joints and their respective pulled entities created by this leash.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public List<LeashData> Leashed = new();
+
+    [DataDefinition, Serializable, NetSerializable]
+    public sealed partial class LeashData
+    {
+        [DataField]
+        public string JointId = string.Empty;
+
+        [DataField]
+        public NetEntity Pulled = NetEntity.Invalid;
+
+        /// <summary>
+        ///     Entity used to visualize the leash. Created dynamically.
+        /// </summary>
+        [DataField]
+        public NetEntity? LeashVisuals = null;
+
+        [DataField]
+        public float Damage = 0f;
+
+        [DataField]
+        public TimeSpan NextDamage = TimeSpan.Zero;
+
+        public LeashData(string jointId, NetEntity pulled)
+        {
+            JointId = jointId;
+            Pulled = pulled;
+        }
+    };
+}

Content.Shared/Floofstation/Leash/Components/LeashedComponent.cs

@@ -0,0 +1,13 @@
+namespace Content.Shared.Floofstation.Leash.Components;
+
+[RegisterComponent]
+public sealed partial class LeashedComponent : Component
+{
+    public const string VisualsContainerName = "leashed-visuals";
+
+    [DataField]
+    public string? JointId = null;
+
+    [NonSerialized]
+    public EntityUid? Puller = null, Anchor = null;
+}

Content.Shared/Floofstation/Leash/LeashDoAfterEvents.cs

@@ -0,0 +1,14 @@
+using Content.Shared.DoAfter;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Floofstation.Leash;
+
+[Serializable, NetSerializable]
+public sealed partial class LeashAttachDoAfterEvent : SimpleDoAfterEvent
+{
+}
+
+[Serializable, NetSerializable]
+public sealed partial class LeashDetachDoAfterEvent : SimpleDoAfterEvent
+{
+}