scummvm/engines/sword25/math/vertex.h

81 lines
2.3 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
/*
BS_Vertex
---------
Autor: Malte Thiesen
*/
#ifndef SWORD25_VERTEX_H
#define SWORD25_VERTEX_H
// Includes
#include <math.h>
#include "common/rect.h"
#include "sword25/kernel/common.h"
struct lua_State;
#if defined(MACOSX) || defined(SOLARIS) || defined(__MINGW32__)
#define sqrtf(x) ((float)sqrt(x))
#endif
namespace Sword25 {
/**
* Defines a 2-D Vertex
*/
class Vertex : public Common::Point {
public:
Vertex() : Point() {}
Vertex(int x_, int y_) : Point(x_, y_) {}
Vertex(Point p) : Point(p) {}
/**
* Calculates the square of the distance between two Vertecies.
* @param Vertex The vertex for which the distance is to be calculated
* @return Returns the square of the distance between itself and the passed vertex
* @remark If only distances should be compared, sqrDist() should be used, since it is faster.
*/
inline int distance(const Vertex &vertex) const {
return (int)(sqrtf(static_cast<float>(sqrDist(vertex))) + 0.5);
}
static Vertex &luaVertexToVertex(lua_State *L, int StackIndex, Vertex &vertex);
static void vertexToLuaVertex(lua_State *L, const Vertex &vertex);
};
} // End of namespace Sword25
#endif