Tungdv
281 lines
9.2 KiB
C#
281 lines
9.2 KiB
C#
using System;
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using System.Collections.Generic;
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using UnityEngine;
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namespace BrewMonster.Scripts
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{
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public class ARect<T> where T : IComparable<T>
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{
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public T left, top, right, bottom;
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public ARect()
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{
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left = default(T);
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top = default(T);
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right = default(T);
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bottom = default(T);
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}
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public ARect(ARect<T> rc)
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{
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left = rc.left; top = rc.top; right = rc.right; bottom = rc.bottom;
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}
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public ARect(T left, T top, T right, T bottom)
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{
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this.left = left;
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this.top = top;
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this.right = right;
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this.bottom = bottom;
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}
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// == and != operator
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public static bool operator !=(ARect<T> rc1, ARect<T> rc2)
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{
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return !(rc1 == rc2);
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}
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public static bool operator ==(ARect<T> rc1, ARect<T> rc2)
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{
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return EqualityComparer<T>.Default.Equals(rc1.left, rc2.left) &&
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EqualityComparer<T>.Default.Equals(rc1.top, rc2.top) &&
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EqualityComparer<T>.Default.Equals(rc1.right, rc2.right) &&
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EqualityComparer<T>.Default.Equals(rc1.bottom, rc2.bottom);
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}
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// + and - operator
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public static ARect<T> operator +(ARect<T> rc1, ARect<T> rc2)
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{
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dynamic l = rc1.left, t = rc1.top, r = rc1.right, b = rc1.bottom;
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dynamic l2 = rc2.left, t2 = rc2.top, r2 = rc2.right, b2 = rc2.bottom;
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return new ARect<T>(l + l2, t + t2, r + r2, b + b2);
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}
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public static ARect<T> operator -(ARect<T> rc1, ARect<T> rc2)
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{
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return new ARect<T>((dynamic)rc1.left - (dynamic)rc2.left,
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(dynamic)rc1.top - (dynamic)rc2.top,
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(dynamic)rc1.right - (dynamic)rc2.right,
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(dynamic)rc1.bottom - (dynamic)rc2.bottom);
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}
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//public static ARect<T> operator +(ARect<T> rc1, APoint<T> pt)
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//{
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// return new ARect<T>((dynamic)rc1.left + (dynamic)pt.x,
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// (dynamic)rc1.top + (dynamic)pt.y,
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// (dynamic)rc1.right + (dynamic)pt.x,
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// (dynamic)rc1.bottom + (dynamic)pt.y);
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//}
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//public static ARect<T> operator -(ARect<T> rc1, APoint<T> pt)
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//{
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// return new ARect<T>((dynamic)rc1.left - (dynamic)pt.x,
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// (dynamic)rc1.top - (dynamic)pt.y,
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// (dynamic)rc1.right - (dynamic)pt.x,
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// (dynamic)rc1.bottom - (dynamic)pt.y);
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//}
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// &= and |= operator
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public ARect<T> AndAssign(ARect<T> rc) => this & rc;
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public ARect<T> OrAssign(ARect<T> rc) => this | rc;
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public static ARect<T> operator &(ARect<T> rc1, ARect<T> rc2)
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{
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if (rc1.IsEmpty() || rc2.IsEmpty())
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return new ARect<T>(default, default, default, default);
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dynamic l1 = rc1.left, r1 = rc1.right, t1 = rc1.top, b1 = rc1.bottom;
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dynamic l2 = rc2.left, r2 = rc2.right, t2 = rc2.top, b2 = rc2.bottom;
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if (l1 >= r2 || l2 >= r1 ||
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t1 >= b2 || t2 >= b1)
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return new ARect<T>(default, default, default, default);
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return new ARect<T>(l1 > l2 ? l1 : l2,
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t1 > t2 ? t1 : t2,
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r1 < r2 ? r1 : r2,
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b1 < b2 ? b1 : b2);
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}
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public static ARect<T> operator |(ARect<T> rc1, ARect<T> rc2)
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{
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if (rc1.IsEmpty())
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return rc2;
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if (rc2.IsEmpty())
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return rc1;
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dynamic l1 = rc1.left, r1 = rc1.right, t1 = rc1.top, b1 = rc1.bottom;
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dynamic l2 = rc2.left, r2 = rc2.right, t2 = rc2.top, b2 = rc2.bottom;
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return new ARect<T>(l1 < l2 ? l1 : l2,
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t1 < t2 ? t1 : t2,
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r1 > r2 ? r1 : r2,
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b1 > b2 ? b1 : b2);
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}
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public static ARect<T> operator +(ARect<T> rc) { return rc; }
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public static ARect<T> operator -(ARect<T> rc)
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{
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return new ARect<T>(-(dynamic)rc.left, -(dynamic)rc.top, -(dynamic)rc.right, -(dynamic)rc.bottom);
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}
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// = operator
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//public static ARect<T> operator = (ARect<T> rc) { left = rc.left; top = rc.top; right = rc.right; bottom = rc.bottom; return *this; }
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// += and -= operator
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public ARect<T> AdditionAssign(ARect<T> rc)
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{
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left += (dynamic)rc.left;
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top += (dynamic)rc.top;
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right += (dynamic)rc.right;
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bottom += (dynamic)rc.bottom;
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return this;
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}
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public ARect<T> SubtractionAssign(ARect<T> rc)
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{
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left -= (dynamic)rc.left;
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top -= (dynamic)rc.top;
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right -= (dynamic)rc.right;
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bottom -= (dynamic)rc.bottom;
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return this;
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}
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//public ARect<T> AdditionAssign(APoint<T> pt) { left += pt.x; top += pt.y; right += pt.x; bottom += pt.y; return this; }
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//public ARect<T> SubtractionAssign(APoint<T> pt) { left -= pt.x; top -= pt.y; right -= pt.x; bottom -= pt.y; return this; }
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// Get width of rectangle
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public T Width()
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{
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return (dynamic)right - (dynamic)left;
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}
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// Get height of rectangle
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public T Height()
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{
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return (dynamic)bottom - (dynamic)top;
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}
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// Get center point of rectangle
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//public APoint<T> CenterPoint() { return new APoint<T>((left + right) / 2, (top + bottom) / 2); }
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// Set rectangle value
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public void SetRect(T _left, T _top, T _right, T _bottom)
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{
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left = _left;
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top = _top;
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right = _right;
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bottom = _bottom;
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}
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// Point in rectangle
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public bool PtInRect(T x, T y)
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{
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dynamic valueX = x;
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dynamic valueY = y;
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return (valueX >= left && valueX < right && valueY >= top && valueY < bottom) ? true : false;
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}
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//public bool PtInRect(APoint<T> pt) { return PtInRect(pt.x, pt.y); }
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// Normalize rectangle. Note: The following CRect member functions require
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// normalized rectangles in order to work properly: Height, Width, Size,
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// IsEmpty, PtInRect, SetUnion, SetIntersect, operator ==, operator !=,
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// operator |, operator |=, operator &, and operator &=
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void Normalize()
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{
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if ((dynamic)left > right)
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a_Swap(left, right);
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if ((dynamic)top > bottom)
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a_Swap(top, bottom);
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}
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private void a_Swap(T lhs, T rhs)
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{
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T tmp;
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tmp = lhs;
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lhs = rhs;
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rhs = tmp;
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}
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// All members are 0 ?
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public bool IsRectNull()
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{
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return ((dynamic)left == 0 && (dynamic)top == 0 && (dynamic)right == 0 && (dynamic)bottom == 0);
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}
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// Rectangle is empty ?
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public bool IsEmpty()
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{
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return ((dynamic)Width() == 0 || (dynamic)Height() == 0);
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}
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// Set all members to 0
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public void Clear()
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{
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left = top = right = bottom = default(T);
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}
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// Deflate rectangle
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public void Deflate(T x, T y)
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{
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left += (dynamic)x;
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top += (dynamic)y;
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right -= (dynamic)x;
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bottom -= (dynamic)y;
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}
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public void Deflate(ARect<T> rc)
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{
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left += (dynamic)rc.left;
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top += (dynamic)rc.top;
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right -= (dynamic)rc.right;
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bottom -= (dynamic)rc.bottom;
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}
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public void Deflate(T l, T t, T r, T b)
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{
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left += (dynamic)l;
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top += (dynamic)t;
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right -= (dynamic)r;
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bottom -= (dynamic)b;
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}
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// Inflate rectangle
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public void Inflate(T x, T y)
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{
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left -= (dynamic)x;
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top -= (dynamic)y;
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right += (dynamic)x;
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bottom += (dynamic)y;
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}
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public void Inflate(ARect<T> rc)
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{
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left -= (dynamic)rc.left;
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top -= (dynamic)rc.top;
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right += (dynamic)rc.right;
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bottom += (dynamic)rc.bottom;
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}
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public void Inflate(T l, T t, T r, T b)
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{
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left -= (dynamic)l;
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top -= (dynamic)t;
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right += (dynamic)r;
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bottom += (dynamic)b;
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}
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// Offset rectangle
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public void Offset(T x, T y)
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{
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left += (dynamic)x;
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top += (dynamic)y;
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right += (dynamic)x;
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bottom += (dynamic)y;
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}
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//public void Offset(APoint<T> pt) { this += pt; }
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// Set rectangle as union result
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public void SetUnion(ARect<T> rc1, ARect<T> rc2)
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{
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var result = rc1 | rc2;
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left = result.left;
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right = result.right;
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bottom = result.bottom;
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top = result.top;
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}
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// Set rectangle as intersect result
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public void SetIntersect(ARect<T> rc1, ARect<T> rc2)
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{
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var result = rc1 & rc2;
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left = result.left;
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right = result.right;
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bottom = result.bottom;
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top = result.top;
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}
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}
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}
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