47 lines
1007 B
C#
47 lines
1007 B
C#
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#if GRIFFIN
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using UnityEngine;
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using System.Collections;
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using System.Collections.Generic;
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using Unity.Mathematics;
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namespace Pinwheel.Griffin
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{
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public struct GQuad2D
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{
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public float2 p0, p1, p2, p3;
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public GQuad2D(float2 p0, float2 p1, float2 p2, float2 p3)
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{
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this.p0 = p0;
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this.p1 = p1;
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this.p2 = p2;
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this.p3 = p3;
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}
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public bool Contains(float2 point)
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{
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Vector2 d0, d1;
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float c0, c1, c2, c3;
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d0 = p1 - p0;
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d1 = point - p0;
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c0 = GMath.Float2Cross(d0, d1);
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d0 = p2 - p1;
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d1 = point - p1;
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c1 = GMath.Float2Cross(d0, d1);
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d0 = p3 - p2;
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d1 = point - p2;
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c2 = GMath.Float2Cross(d0, d1);
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d0 = p0 - p3;
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d1 = point - p3;
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c3 = GMath.Float2Cross(d0, d1);
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return c0 > 0 && c1 > 0 && c2 > 0 && c3 > 0;
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}
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}
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}
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#endif
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