/// 交差判定
public bool IntersectsWith(IntRect other)
{
return !(this.X > other.Right || other.X > this.Right ||
this.Y > other.Bottom || other.Y > this.Bottom);
}
/// 含有判定
/// @param other 判定対象のRect
/// @return 含有しているか
public bool Contains(IntRect other)
{
if (this.Width < 0 || this.Height < 0 ||
other.Width < 0 || other.Height < 0) return false;
// 開始点
if (other.X < this.X || other.Y < this.Y) return false;
// Right
if (other.Right <= other.X) {
// other.Widthが負の数
if (this.X <= this.Right || this.Right < other.Right) return false;
} else {
if (this.X <= this.Right && this.Right < other.Right) return false;
}
// Bottom
if (other.Bottom <= other.Y) {
// other.Heightが負の数
if (this.Y <= this.Bottom || this.Bottom < other.Bottom) return false;
} else {
if (this.Y <= this.Bottom && this.Bottom < other.Bottom) return false;
}
return true;
}
/// 交差
public void Intersect(IntRect other)
{
if (!this.IntersectsWith(other)) return;
var newX = Math.Max(this.X, other.X);
var newY = Math.Max(this.Y, other.Y);
var newRight = Math.Min(this.Right, other.Right);
var newBottom = Math.Min(this.Bottom, other.Bottom);
this.X = newX;
this.Y = newY;
this.Width = newRight - newX;
this.Height = newBottom - newY;
}
/// 交差判定
public bool IntersectsWith(IntRect other)
{
return(!(this.X > other.Right || other.X > this.Right ||
this.Y > other.Bottom || other.Y > this.Bottom));
}