ET9_WebGL_Base/Unity/Assets/Scripts/Base/Math/VInt2.cs

using System;
using UnityEngine;

[Serializable]
public struct VInt2
{
    public int x;

    public int y;

    public static VInt2 zero = default(VInt2);

    private static readonly int[] Rotations = new int[]
    {
        1,
        0,
        0,
        1,
        0,
        1,
        -1,
        0,
        -1,
        0,
        0,
        -1,
        0,
        -1,
        1,
        0
    };

    public int sqrMagnitude
    {
        get
        {
            return this.x * this.x + this.y * this.y;
        }
    }

    public long sqrMagnitudeLong
    {
        get
        {
            long num = (long)this.x;
            long num2 = (long)this.y;
            return num * num + num2 * num2;
        }
    }

    public int magnitude
    {
        get
        {
            long num = (long)this.x;
            long num2 = (long)this.y;
            return IntMath.Sqrt(num * num + num2 * num2);
        }
    }

    public VInt2 normalized
    {
        get
        {
            VInt2 result = new VInt2(this.x, this.y);
            result.Normalize();
            return result;
        }
    }

    public VInt2(int x, int y)
    {
        this.x = x;
        this.y = y;
    }

    public static int Dot(VInt2 a, VInt2 b)
    {
        return a.x * b.x + a.y * b.y;
    }

    public static long DotLong(ref VInt2 a, ref VInt2 b)
    {
        return (long)a.x * (long)b.x + (long)a.y * (long)b.y;
    }

    public static long DotLong(VInt2 a, VInt2 b)
    {
        return (long)a.x * (long)b.x + (long)a.y * (long)b.y;
    }

    public static long DetLong(ref VInt2 a, ref VInt2 b)
    {
        return (long)a.x * (long)b.y - (long)a.y * (long)b.x;
    }

    public static long DetLong(VInt2 a, VInt2 b)
    {
        return (long)a.x * (long)b.y - (long)a.y * (long)b.x;
    }

    public override bool Equals(object o)
    {
        if (o == null)
        {
            return false;
        }
        VInt2 vInt = (VInt2)o;
        return this.x == vInt.x && this.y == vInt.y;
    }

    public override int GetHashCode()
    {
        return this.x * 49157 + this.y * 98317;
    }

    public static VInt2 Rotate(VInt2 v, int r)
    {
        r %= 4;
        return new VInt2(v.x * VInt2.Rotations[r * 4] + v.y * VInt2.Rotations[r * 4 + 1], v.x * VInt2.Rotations[r * 4 + 2] + v.y * VInt2.Rotations[r * 4 + 3]);
    }

    public static VInt2 Min(VInt2 a, VInt2 b)
    {
        return new VInt2(Math.Min(a.x, b.x), Math.Min(a.y, b.y));
    }

    public static VInt2 Max(VInt2 a, VInt2 b)
    {
        return new VInt2(Math.Max(a.x, b.x), Math.Max(a.y, b.y));
    }

    public static VInt2 FromInt3XZ(VInt3 o)
    {
        return new VInt2(o.x, o.z);
    }

    public static VInt3 ToInt3XZ(VInt2 o)
    {
        return new VInt3(o.x, 0, o.y);
    }

    public override string ToString()
    {
        return string.Concat(new object[]
        {
            "(",
            this.x,
            ", ",
            this.y,
            ")"
        });
    }

    public void Min(ref VInt2 r)
    {
        this.x = Mathf.Min(this.x, r.x);
        this.y = Mathf.Min(this.y, r.y);
    }

    public void Max(ref VInt2 r)
    {
        this.x = Mathf.Max(this.x, r.x);
        this.y = Mathf.Max(this.y, r.y);
    }

    public void Normalize()
    {
        long num = (long)(this.x * 100);
        long num2 = (long)(this.y * 100);
        long num3 = num * num + num2 * num2;
        if (num3 == 0L)
        {
            return;
        }
        long b = (long)IntMath.Sqrt(num3);
        this.x = (int)IntMath.Divide(num * 1000L, b);
        this.y = (int)IntMath.Divide(num2 * 1000L, b);
    }

    public static VInt2 ClampMagnitude(VInt2 v, int maxLength)
    {
        long sqrMagnitudeLong = v.sqrMagnitudeLong;
        long num = (long)maxLength;
        if (sqrMagnitudeLong > num * num)
        {
            long b = (long)IntMath.Sqrt(sqrMagnitudeLong);
            int num2 = (int)IntMath.Divide((long)(v.x * maxLength), b);
            int num3 = (int)IntMath.Divide((long)(v.x * maxLength), b);
            return new VInt2(num2, num3);
        }
        return v;
    }

    public static explicit operator Vector2(VInt2 ob)
    {
        return new Vector2((float)ob.x * 0.001f, (float)ob.y * 0.001f);
    }

    public static explicit operator VInt2(Vector2 ob)
    {
        return new VInt2((int)Math.Round((double)(ob.x * 1000f)), (int)Math.Round((double)(ob.y * 1000f)));
    }

    public static VInt2 operator +(VInt2 a, VInt2 b)
    {
        return new VInt2(a.x + b.x, a.y + b.y);
    }

    public static VInt2 operator -(VInt2 a, VInt2 b)
    {
        return new VInt2(a.x - b.x, a.y - b.y);
    }

    public static bool operator ==(VInt2 a, VInt2 b)
    {
        return a.x == b.x && a.y == b.y;
    }

    public static bool operator !=(VInt2 a, VInt2 b)
    {
        return a.x != b.x || a.y != b.y;
    }

    public static VInt2 operator -(VInt2 lhs)
    {
        lhs.x = -lhs.x;
        lhs.y = -lhs.y;
        return lhs;
    }

    public static VInt2 operator *(VInt2 lhs, int rhs)
    {
        lhs.x *= rhs;
        lhs.y *= rhs;
        return lhs;
    }
}