From 81bb6873f1c0291fecbf6e429ad15ac3db66a4c0 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Tue, 12 Mar 2024 22:07:03 +0100
Subject: Legal notices updated

Rename contrib -> third-party intendes to express the origin and purpose
of that part of the code better. I plan to readd contrib/ again but with
more in-project things like bash-completions, dev workflow scripts etc.
---
 third-party/Opcode/Ice/IceTriangle.h | 68 ++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 third-party/Opcode/Ice/IceTriangle.h

(limited to 'third-party/Opcode/Ice/IceTriangle.h')

diff --git a/third-party/Opcode/Ice/IceTriangle.h b/third-party/Opcode/Ice/IceTriangle.h
new file mode 100644
index 0000000..e5c8426
--- /dev/null
+++ b/third-party/Opcode/Ice/IceTriangle.h
@@ -0,0 +1,68 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ *	Contains a handy triangle class.
+ *	\file		IceTriangle.h
+ *	\author		Pierre Terdiman
+ *	\date		January, 17, 2000
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Include Guard
+#ifndef __ICETRIANGLE_H__
+#define __ICETRIANGLE_H__
+
+	// Forward declarations
+	class Moment;
+
+	// Partitioning values
+	enum PartVal
+	{
+		TRI_MINUS_SPACE		= 0,			//!< Triangle is in the negative space
+		TRI_PLUS_SPACE		= 1,			//!< Triangle is in the positive space
+		TRI_INTERSECT		= 2,			//!< Triangle intersects plane
+		TRI_ON_PLANE		= 3,			//!< Triangle and plane are coplanar
+
+		TRI_FORCEDWORD		= 0x7fffffff
+	};
+
+	// A triangle class.
+	class ICEMATHS_API Triangle
+	{
+		public:
+		//! Constructor
+		inline_					Triangle()													{}
+		//! Constructor
+		inline_					Triangle(const IcePoint& p0, const IcePoint& p1, const IcePoint& p2)	{ mVerts[0]=p0; mVerts[1]=p1; mVerts[2]=p2; }
+		//! Copy constructor
+		inline_					Triangle(const Triangle& triangle)
+								{
+									mVerts[0] = triangle.mVerts[0];
+									mVerts[1] = triangle.mVerts[1];
+									mVerts[2] = triangle.mVerts[2];
+								}
+		//! Destructor
+		inline_					~Triangle()													{}
+		//! Vertices
+				IcePoint			mVerts[3];
+
+		// Methods
+				void			Flip();
+				float			Area() const;
+				float			Perimeter()	const;
+				float			Compacity()	const;
+				void			Normal(IcePoint& normal) const;
+				void			DenormalizedNormal(IcePoint& normal) const;
+				void			Center(IcePoint& center) const;
+		inline_	IcePlane			PlaneEquation() const	{ return IcePlane(mVerts[0], mVerts[1], mVerts[2]);	}
+
+				PartVal			TestAgainstPlane(const IcePlane& plane, float epsilon) const;
+//				float			Distance(Point& cp, Point& cq, Tri& tri);
+				void			ComputeMoment(Moment& m);
+				float			MinEdgeLength() const;
+				float			MaxEdgeLength() const;
+				void			ComputePoint(float u, float v, IcePoint& pt, udword* nearvtx=null)	const;
+				void			Inflate(float fat_coeff, bool constant_border);
+	};
+
+#endif // __ICETRIANGLE_H__
-- 
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