52 lines
1.6 KiB
C#
52 lines
1.6 KiB
C#
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using UnityEngine;
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namespace UnityEngine
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{
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internal static class RectExtensions
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{
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internal static bool Contains(this Rect r, Rect other)
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{
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return r.xMin <= other.xMin &&
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r.xMax >= other.xMax &&
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r.yMin <= other.yMin &&
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r.yMax >= other.yMax;
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}
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internal static bool Intersects(this Rect r, Rect other)
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{
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return r.xMin < other.xMax &&
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r.xMax > other.xMin &&
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r.yMin < other.yMax &&
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r.yMax > other.yMin;
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}
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internal static Rect Intersect(this Rect rect, Rect other)
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{
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float xMin = Mathf.Max(rect.xMin, other.xMin);
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float xMax = Mathf.Min(rect.xMax, other.xMax);
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float yMin = Mathf.Max(rect.yMin, other.yMin);
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float yMax = Mathf.Min(rect.yMax, other.yMax);
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// If there's no intersection, return a rect with zero width/height
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if (xMax < xMin || yMax < yMin)
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return new Rect(0, 0, 0, 0);
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return new Rect(xMin, yMin, xMax - xMin, yMax - yMin);
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}
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internal static Rect Inflate(this Rect rect, float amount)
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{
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return rect.Inflate(amount, amount);
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}
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internal static Rect Inflate(this Rect rect, float xAmount, float yAmount)
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{
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return new Rect(
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rect.xMin - xAmount,
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rect.yMin - yAmount,
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rect.width + (2 * xAmount),
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rect.height + (2 * yAmount));
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}
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}
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}
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