daily update on 20230320 by nitload youmu

2023-03-20 01:45:49 +08:00
parent 167e33a3dd
commit db2ca36fd7
100 changed files with 1211 additions and 746 deletions
@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace StgSharp.Math
+{
+    [StructLayout(LayoutKind.Explicit)]
+    public struct matrix4x2:IEquatable<matrix4x2>
+    {
+        [FieldOffset(0)]
+        public vec2d row1;
+        [FieldOffset(8)]
+        public vec2d row2;
+        [FieldOffset(16)]
+        public vec2d row3;
+        [FieldOffset(24)]
+        public vec2d row4;
+
+        public matrix4x2(vec2d r1, vec2d r2, vec2d r3, vec2d r4)
+        {
+            row1 = r1;
+            row2 = r2;
+            row3 = r3;
+            row4 = r4;
+        }
+
+        public matrix4x2(
+            float a11, float a12,
+            float a21, float a22,
+            float a31, float a32,
+            float a41, float a42
+            )
+        {
+            row1 = new vec2d(a11, a12);
+            row2 = new vec2d(a21, a22);
+            row3 = new vec2d(a31, a32);
+            row4 = new vec2d(a41, a42);
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (obj == null)
+            {
+                return false;
+            }
+            else if (obj.GetType() == typeof(matrix4x2))
+            {
+                return false;
+            }
+            else
+            {
+                return this.Equals((matrix4x2)obj);
+            }
+        }
+
+        public override int GetHashCode()
+        {
+            return HashCode.Combine(row1, row2, row3, row4);
+        }
+
+        public override string ToString()
+        {
+            return $"{row1}\n{row2}\n{row3}\n{row4}";
+        }
+
+        bool IEquatable<matrix4x2>.Equals(matrix4x2 other)
+        {
+            if (this.GetHashCode() != other.GetHashCode())
+            {
+                return false;
+            }
+            else
+            {
+                return this.row1 == other.row1
+                    && this.row2 == other.row2
+                    && this.row3 == other.row3
+                    && this.row4 == other.row4;
+            }
+        }
+
+        
+    }
+}