Files
stgsharp/源代码/StgSharp/Vector/Vec2D.cs
T

101 lines
2.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Runtime;
using System.Runtime.InteropServices;
using System.Text;
namespace StgSharp.Math
{
[StructLayout(LayoutKind.Explicit)]
public struct Vec2D:IEquatable<Vec2D>
{
[FieldOffset(0)]
public float X;
[FieldOffset(sizeof(float))]
public float Y;
public Vec2D(float x,float y)
{
X = x;
Y = y;
}
public bool Equals(Vec2D other)
{
if (this.GetHashCode() != other.GetHashCode())
{
return false;
}
else
{
return this.X == other.X && this.Y == other.Y;
}
}
public override bool Equals(object obj)
{
if (obj == null)
{
return false;
}
else if (obj.GetType() != typeof(Vec2D))
{
return false;
}
else
{
return this.Equals((Vec2D)obj);
}
}
public override int GetHashCode()
{
return HashCode.Combine(X, Y);
}
public override string ToString()
{
return $"{this.X}\t{this.Y}";
}
public static bool operator ==(Vec2D vec1, Vec2D vec2)
{
return vec1.X==vec2.X && vec1.Y==vec2.Y;
}
public static bool operator !=(Vec2D vec1, Vec2D vec2)
{
return !(vec1.X == vec2.X && vec1.Y == vec2.Y);
}
public static Vec2D operator +(Vec2D vec1, Vec2D vec2)
{
return new Vec2D(vec1.X + vec2.X, vec1.Y + vec2.Y);
}
public static Vec2D operator -(Vec2D vec1, Vec2D vec2)
{
return new Vec2D(vec1.X + vec2.X, vec1.Y + vec2.Y);
}
public static float operator *(Vec2D vec1, Vec2D vec2)
{
return vec1.X * vec2.X + vec1.Y*vec2.Y;
}
public static Vec2D operator *(Vec2D vec, float x)
{
return new Vec2D(vec.X * x, vec.Y * x);
}
public static Vec2D operator /(Vec2D vec, float x)
{
return new Vec2D(vec.X/x, vec.Y/x);
}
}
}