fix: Fix potential vector & qangle leaks

CS2-SimpleAdminApi/CS2-SimpleAdminApi.csproj

@@ -5,6 +5,7 @@
         <RootNamespace>CS2_SimpleAdminApi</RootNamespace>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
+        <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     </PropertyGroup>
 
     <ItemGroup>

CS2-SimpleAdminApi/Extensions/FixVectorLeak.cs

@@ -0,0 +1,280 @@
+using CounterStrikeSharp.API;
+using CounterStrikeSharp.API.Core;
+using CounterStrikeSharp.API.Modules.Memory;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Numerics;
+using CounterStrikeSharp.API.Modules.Utils;
+
+namespace FixVectorLeak;
+
+public struct Vector_t : IAdditionOperators<Vector_t, Vector_t, Vector_t>,
+        ISubtractionOperators<Vector_t, Vector_t, Vector_t>,
+        IMultiplyOperators<Vector_t, float, Vector_t>,
+        IDivisionOperators<Vector_t, float, Vector_t>
+{
+    public float X, Y, Z;
+
+    public const int SIZE = 3;
+
+    public unsafe float this[int i]
+    {
+        readonly get
+        {
+            if (i < 0 || i > SIZE)
+            {
+                throw new IndexOutOfRangeException();
+            }
+
+            fixed (void* ptr = &this)
+            {
+                return Unsafe.Read<float>(Unsafe.Add<float>(ptr, i));
+            }
+        }
+        set
+        {
+            if (i < 0 || i > SIZE)
+            {
+                throw new IndexOutOfRangeException();
+            }
+
+            fixed (void* ptr = &this)
+            {
+                Unsafe.Write(Unsafe.Add<float>(ptr, i), value);
+            }
+        }
+    }
+
+    public Vector_t()
+    {
+    }
+
+    public unsafe Vector_t(nint ptr) : this(MemoryMarshal.CreateReadOnlySpan(ref Unsafe.AsRef<float>((void*)ptr), SIZE))
+    {
+    }
+
+    public Vector_t(float x, float y, float z)
+    {
+        X = x;
+        Y = y;
+        Z = z;
+    }
+
+    public Vector_t(ReadOnlySpan<float> values)
+    {
+        if (values.Length < SIZE)
+        {
+            throw new ArgumentOutOfRangeException(nameof(values));
+        }
+
+        this = Unsafe.ReadUnaligned<Vector_t>(ref Unsafe.As<float, byte>(ref MemoryMarshal.GetReference(values)));
+    }
+
+    public readonly float Length()
+    {
+        return (float)Math.Sqrt(X * X + Y * Y + Z * Z);
+    }
+
+    public readonly float Length2D()
+    {
+        return (float)Math.Sqrt(X * X + Y * Y);
+    }
+
+    public readonly bool IsZero(float tolerance = 0.0001f)
+    {
+        return Math.Abs(X) <= tolerance && Math.Abs(Y) <= tolerance && Math.Abs(Z) <= tolerance;
+    }
+
+    public void Scale(float scale)
+    {
+        X *= scale;
+        Y *= scale;
+        Z *= scale;
+    }
+
+    public readonly override string ToString()
+    {
+        return $"{X:n2} {Y:n2} {Z:n2}";
+    }
+
+    public static Vector_t operator +(Vector_t a, Vector_t b)
+    {
+        return new Vector_t(a.X + b.X, a.Y + b.Y, a.Z + b.Z);
+    }
+
+    public static Vector_t operator -(Vector_t a, Vector_t b)
+    {
+        return new Vector_t(a.X - b.X, a.Y - b.Y, a.Z - b.Z);
+    }
+
+    public static Vector_t operator -(Vector_t a)
+    {
+        return new Vector_t(-a.X, -a.Y, -a.Z);
+    }
+
+    public static Vector_t operator *(Vector_t a, float b)
+    {
+        return new Vector_t(a.X * b, a.Y * b, a.Z * b);
+    }
+
+    public static Vector_t operator /(Vector_t a, float b)
+    {
+        return new Vector_t(a.X / b, a.Y / b, a.Z / b);
+    }
+}
+
+public struct QAngle_t : IAdditionOperators<QAngle_t, QAngle_t, QAngle_t>,
+        ISubtractionOperators<QAngle_t, QAngle_t, QAngle_t>,
+        IMultiplyOperators<QAngle_t, float, QAngle_t>,
+        IDivisionOperators<QAngle_t, float, QAngle_t>
+{
+    public float X, Y, Z;
+
+    public const int SIZE = 3;
+
+    public unsafe float this[int i]
+    {
+        readonly get
+        {
+            if (i < 0 || i > SIZE)
+            {
+                throw new IndexOutOfRangeException();
+            }
+
+            fixed (void* ptr = &this)
+            {
+                return Unsafe.Read<float>(Unsafe.Add<float>(ptr, i));
+            }
+        }
+        set
+        {
+            if (i < 0 || i > SIZE)
+            {
+                throw new IndexOutOfRangeException();
+            }
+
+            fixed (void* ptr = &this)
+            {
+                Unsafe.Write(Unsafe.Add<float>(ptr, i), value);
+            }
+        }
+    }
+
+    public QAngle_t()
+    {
+    }
+
+    public unsafe QAngle_t(nint ptr) : this(MemoryMarshal.CreateReadOnlySpan(ref Unsafe.AsRef<float>((void*)ptr), SIZE))
+    {
+    }
+
+    public QAngle_t(float x, float y, float z)
+    {
+        X = x;
+        Y = y;
+        Z = z;
+    }
+
+    public QAngle_t(ReadOnlySpan<float> values)
+    {
+        if (values.Length < SIZE)
+        {
+            throw new ArgumentOutOfRangeException(nameof(values));
+        }
+
+        this = Unsafe.ReadUnaligned<QAngle_t>(ref Unsafe.As<float, byte>(ref MemoryMarshal.GetReference(values)));
+    }
+
+    public unsafe (Vector_t fwd, Vector_t right, Vector_t up) AngleVectors()
+    {
+        Vector_t fwd = default, right = default, up = default;
+
+        nint pFwd = (nint)Unsafe.AsPointer(ref fwd);
+        nint pRight = (nint)Unsafe.AsPointer(ref right);
+        nint pUp = (nint)Unsafe.AsPointer(ref up);
+
+        fixed (void* ptr = &this)
+        {
+            NativeAPI.AngleVectors((nint)ptr, pFwd, pRight, pUp);
+        }
+
+        return (fwd, right, up);
+    }
+
+    public unsafe void AngleVectors(out Vector_t fwd, out Vector_t right, out Vector_t up)
+    {
+        fixed (void* ptr = &this, pFwd = &fwd, pRight = &right, pUp = &up)
+        {
+            NativeAPI.AngleVectors((nint)ptr, (nint)pFwd, (nint)pRight, (nint)pUp);
+        }
+    }
+
+    public readonly override string ToString()
+    {
+        return $"{X:n2} {Y:n2} {Z:n2}";
+    }
+
+    public static QAngle_t operator +(QAngle_t a, QAngle_t b)
+    {
+        return new QAngle_t(a.X + b.X, a.Y + b.Y, a.Z + b.Z);
+    }
+
+    public static QAngle_t operator -(QAngle_t a, QAngle_t b)
+    {
+        return new QAngle_t(a.X - b.X, a.Y - b.Y, a.Z - b.Z);
+    }
+
+    public static QAngle_t operator -(QAngle_t a)
+    {
+        return new QAngle_t(-a.X, -a.Y, -a.Z);
+    }
+
+    public static QAngle_t operator *(QAngle_t a, float b)
+    {
+        return new QAngle_t(a.X * b, a.Y * b, a.Z * b);
+    }
+
+    public static QAngle_t operator /(QAngle_t a, float b)
+    {
+        return new QAngle_t(a.X / b, a.Y / b, a.Z / b);
+    }
+}
+
+public unsafe static class Extensions
+{
+    public static void Teleport(this CBaseEntity entity, Vector_t? position = null, QAngle_t? angles = null, Vector_t? velocity = null)
+    {
+        Guard.IsValidEntity(entity);
+
+        void* pPos = null, pAng = null, pVel = null;
+
+        // Structs are stored on the stack, GC should not break pointers.
+
+        if (position.HasValue)
+        {
+            var pos = position.Value; // Remove nullable wrapper
+            pPos = &pos;
+        }
+
+        if (angles.HasValue)
+        {
+            var ang = angles.Value;
+            pAng = &ang;
+        }
+
+        if (velocity.HasValue)
+        {
+            var vel = velocity.Value;
+            pVel = &vel;
+        }
+
+        VirtualFunction.CreateVoid<IntPtr, IntPtr, IntPtr, IntPtr>(entity.Handle, GameData.GetOffset("CBaseEntity_Teleport"))(entity.Handle, (nint)pPos,
+            (nint)pAng, (nint)pVel);
+    }
+
+    public static (Vector_t fwd, Vector_t right, Vector_t up) AngleVectors(this QAngle vec) => vec.ToQAngle_t().AngleVectors();
+    public static void AngleVectors(this QAngle vec, out Vector_t fwd, out Vector_t right, out Vector_t up) => vec.ToQAngle_t().AngleVectors(out fwd, out right, out up);
+
+    public static Vector_t ToVector_t(this CounterStrikeSharp.API.Modules.Utils.Vector vec) => new(vec.Handle);
+    public static QAngle_t ToQAngle_t(this QAngle vec) => new(vec.Handle);
+}

CS2-SimpleAdminApi/PlayerInfo.cs

@@ -1,5 +1,5 @@
 using CounterStrikeSharp.API.Modules.Entities;
-using CounterStrikeSharp.API.Modules.Utils;
+using FixVectorLeak;
 
 namespace CS2_SimpleAdminApi;
 
@@ -30,8 +30,8 @@ public class PlayerInfo(
     public DiePosition? DiePosition { get; set; }
 }
 
-public struct DiePosition(Vector position, QAngle angle)
+public struct DiePosition(Vector_t position, QAngle_t angle)
 {
-    public Vector Position { get; set; } = position;
-    public QAngle Angle { get; set; } = angle;
+    public Vector_t Position { get; set; } = position;
+    public QAngle_t Angle { get; set; } = angle;
 }