using System;
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using UnityEngine;
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namespace Core.Utilities
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{
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/// <summary>
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/// A 2-dimensional vector with integer components
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/// </summary>
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[Serializable]
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public struct IntVector2 : IEquatable<IntVector2>
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{
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/// <summary>
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/// Vector with both components being 1
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/// </summary>
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public static readonly IntVector2 one = new IntVector2(1, 1);
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/// <summary>
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/// Vector with both components being 0
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/// </summary>
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public static readonly IntVector2 zero = new IntVector2(0, 0);
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/// <summary>
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/// The x component of this vector
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/// </summary>
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public int x;
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/// <summary>
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/// The y component of this vector
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/// </summary>
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public int y;
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/// <summary>
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/// Gets the squared magnitude of this vector
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/// </summary>
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public int sqrMagnitude
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{
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get { return (x * x) + (y * y); }
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}
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/// <summary>
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/// Returns the magnitude of this vector
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/// </summary>
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public float magnitude
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{
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get { return Mathf.Sqrt(sqrMagnitude); }
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}
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/// <summary>
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/// Gets the manhattan distance of this vector
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/// </summary>
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public int manhattanDistance
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{
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get { return Mathf.Abs(x) + Mathf.Abs(y); }
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}
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/// <summary>
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/// Initialize a new vector
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/// </summary>
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public IntVector2(int x, int y)
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{
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this.x = x;
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this.y = y;
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}
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public bool Equals(IntVector2 other)
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{
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return other.x == x && other.y == y;
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}
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public override bool Equals(object obj)
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{
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if (ReferenceEquals(null, obj))
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{
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return false;
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}
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return obj is IntVector2 && Equals((IntVector2) obj);
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}
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/// <summary>
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/// Simple hash multiplying by two primes
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/// </summary>
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public override int GetHashCode()
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{
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unchecked
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{
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return (x.GetHashCode() * 92821) ^ (y.GetHashCode() * 31);
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}
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}
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public override string ToString()
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{
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return string.Format("X: {0}, Y: {1}", x, y);
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}
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public static bool operator ==(IntVector2 left, IntVector2 right)
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{
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return left.Equals(right);
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}
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public static bool operator !=(IntVector2 left, IntVector2 right)
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{
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return !left.Equals(right);
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}
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public static implicit operator Vector2(IntVector2 vector)
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{
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return new Vector2(vector.x, vector.y);
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}
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public static explicit operator IntVector2(Vector2 vector)
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{
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return new IntVector2((int) vector.x, (int) vector.y);
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}
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public static IntVector2 operator +(IntVector2 left, IntVector2 right)
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{
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return new IntVector2(left.x + right.x, left.y + right.y);
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}
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public static IntVector2 operator -(IntVector2 left, IntVector2 right)
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{
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return new IntVector2(left.x - right.x, left.y - right.y);
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}
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public static IntVector2 operator *(int scale, IntVector2 left)
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{
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return new IntVector2(left.x * scale, left.y * scale);
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}
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public static IntVector2 operator *(IntVector2 left, int scale)
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{
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return new IntVector2(left.x * scale, left.y * scale);
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}
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public static Vector2 operator *(float scale, IntVector2 left)
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{
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return new Vector2(left.x * scale, left.y * scale);
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}
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public static Vector2 operator *(IntVector2 left, float scale)
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{
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return new Vector2(left.x * scale, left.y * scale);
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}
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public static IntVector2 operator -(IntVector2 left)
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{
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return new IntVector2(-left.x, -left.y);
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}
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}
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}
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