Differential D981 Diff 8352 ps/trunk/source/simulation2/helpers/Geometry.h

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ps/trunk/source/simulation2/helpers/Geometry.h

	/* Copyright (C) 2018 Wildfire Games.			/* Copyright (C) 2019 Wildfire Games.
	* This file is part of 0 A.D.			* This file is part of 0 A.D.
	*			*
	* 0 A.D. is free software: you can redistribute it and/or modify			* 0 A.D. is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by			* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 2 of the License, or			* the Free Software Foundation, either version 2 of the License, or
	* (at your option) any later version.			* (at your option) any later version.
	*			*
	* 0 A.D. is distributed in the hope that it will be useful,			* 0 A.D. is distributed in the hope that it will be useful,
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	* The rectangle is defined by the four vertexes			* The rectangle is defined by the four vertexes
	* (+/-uhalfSize.X +/-vhalfSize.Y).			* (+/-uhalfSize.X +/-vhalfSize.Y).
	*			*
	* The @p u and @p v vectors must be perpendicular and unit length.			* The @p u and @p v vectors must be perpendicular and unit length.
	*/			*/
	CFixedVector2D NearestPointOnSquare(const CFixedVector2D& point,			CFixedVector2D NearestPointOnSquare(const CFixedVector2D& point,
	const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize);			const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize);

				/**
				* Returns the shortest distance between two squares.
				*/
				fixed DistanceSquareToSquare(const CFixedVector2D& relativePos,
				const CFixedVector2D& u1, const CFixedVector2D& v1, const CFixedVector2D& halfSize1,
				const CFixedVector2D& u2, const CFixedVector2D& v2, const CFixedVector2D& halfSize2);

				/**
				* Returns the greatest straight line distance from a point to a square.
				*
				* If @p countInsideAsZero is true, and the point is inside the rectangle,
				* it will return 0.
				* If @p countInsideAsZero is false, the greatest (positive) distance to the boundary
				* will be returned regardless of where the point is.
				*/
				fixed MaxDistanceToSquare(const CFixedVector2D& point,
				const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize,
				bool countInsideAsZero = false);

				/**
				* Return the greatest straight line distance between two squares.
				*/
				fixed MaxDistanceSquareToSquare(const CFixedVector2D& relativePos,
				const CFixedVector2D& u1, const CFixedVector2D& v1, const CFixedVector2D& halfSize1,
				const CFixedVector2D& u2, const CFixedVector2D& v2, const CFixedVector2D& halfSize2);

	bool TestRaySquare(const CFixedVector2D& a, const CFixedVector2D& b, const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize);			bool TestRaySquare(const CFixedVector2D& a, const CFixedVector2D& b, const CFixedVector2D& u, const CFixedVector2D& v, const CFixedVector2D& halfSize);

	bool TestRayAASquare(const CFixedVector2D& a, const CFixedVector2D& b, const CFixedVector2D& halfSize);			bool TestRayAASquare(const CFixedVector2D& a, const CFixedVector2D& b, const CFixedVector2D& halfSize);

	bool TestSquareSquare(			bool TestSquareSquare(
	const CFixedVector2D& c0, const CFixedVector2D& u0, const CFixedVector2D& v0, const CFixedVector2D& halfSize0,			const CFixedVector2D& c0, const CFixedVector2D& u0, const CFixedVector2D& v0, const CFixedVector2D& halfSize0,
	const CFixedVector2D& c1, const CFixedVector2D& u1, const CFixedVector2D& v1, const CFixedVector2D& halfSize1);			const CFixedVector2D& c1, const CFixedVector2D& u1, const CFixedVector2D& v1, const CFixedVector2D& halfSize1);

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