daily update on 20230301 by nitload youmu, file struct cahnged and more vec func added

2023-03-02 01:30:46 +08:00
parent d09105c9c1
commit bb71567e51
594 changed files with 368 additions and 2601 deletions
@@ -0,0 +1,100 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace StgSharp.Math
+{
+    [StructLayout(LayoutKind.Explicit)]
+    public struct Array2x2:IEquatable<Array2x2>
+    {
+        [FieldOffset(0)]
+        public Vec2D row1;
+        [FieldOffset(8)]
+        public Vec2D row2;
+
+        public Array2x2(Vec2D c0, Vec2D c1)
+        {
+            row1 = c0;
+            row2 = c1;
+        }
+
+        public Array2x2(
+            float a11,
+            float a12,
+            float a21,
+            float a22
+            )
+        {
+            row1 = new Vec2D(a11, a12);
+            row2 = new Vec2D(a21, a22);
+        }
+
+        bool IEquatable<Array2x2>.Equals(Array2x2 other)
+        {
+            if (this.GetHashCode() != other.GetHashCode())
+            {
+                return false;
+            }
+            else
+            {
+                return
+                    this.row1 == other.row1
+                    && this.row2 == other.row2;
+            }
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (obj == null)
+            {
+                return false;
+            }
+            else if (obj.GetType() != typeof(Array2x2))
+            {
+                return false;
+            }
+            else
+            {
+                return this.Equals((Vec3D)obj);
+            }
+        }
+
+        public static unsafe Array2x2 operator *(Array2x2 array1, Array2x2 array2)
+        {
+            float* p = &array1.row1.X;
+
+            Vec2D colum1 = new Vec2D(
+                *p , *(p + 2)
+                );
+            Vec2D colum2 = new Vec2D(
+                *(p + 1), *(p + 3)
+                );
+
+            return new Array2x2(
+                colum1 * array2.row1,
+                colum2 * array2.row1,
+                colum1 * array2.row2,
+                colum2 * array2.row2
+                );
+        }
+
+        public static Array2x2 operator +(Array2x2 array1, Array2x2 array2)
+        {
+            return new Array2x2(
+                array1.row1 + array2.row1,
+                array1.row2 + array2.row2
+                );
+        }
+
+        public static Array2x2 operator -(Array2x2 array1, Array2x2 array2)
+        {
+            return new Array2x2(
+                array1.row1 - array2.row1,
+                array1.row2 - array2.row2
+                );
+        }
+
+        
+    }
+}