OpenGL rebuild project start!

源代码/StgSharp/Math/Graphic/vec2dInt.cs

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+using Steamworks;
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace StgSharp.Math
+{
+
+    [StructLayout(LayoutKind.Explicit,Size = 8)]
+    public unsafe struct vec2dInt
+    {
+        [FieldOffset(0)]
+        public int X;
+        [FieldOffset(4)]
+        public int Y;
+
+        public vec2dInt(int x, int y)
+        {
+            this.X = x;
+            this.Y = y;
+        }
+
+        public static implicit operator vec2d(vec2dInt vec)
+        {
+            return new vec2d(vec.X,vec.Y);
+        }
+        public static implicit operator vec2dInt(vec2d vec)
+        {
+            return new vec2dInt((int)vec.X, (int)vec.Y);
+        }
+
+        public static vec2dInt operator +(vec2dInt vec1, vec2dInt vec2)
+        {
+            return new vec2dInt(vec1.X + vec2.X, vec1.Y + vec2.Y);
+        }
+        public static vec2dInt operator -(vec2dInt vec1, vec2dInt vec2)
+        {
+            return new vec2dInt(vec1.X - vec2.X, vec1.Y - vec2.Y);
+        }
+    }
+}