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// * This file is part of the COLOBOT source code
// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
// *
// * 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 3 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, see http://www.gnu.org/licenses/.
/** @defgroup MathPointModule math/point.h
Contains the Point struct and related functions.
*/
#pragma once
#include <cmath>
/* TODO
FPOINT RotatePoint(FPOINT center, float angle, FPOINT p);
FPOINT RotatePoint(float angle, FPOINT p);
FPOINT RotatePoint(float angle, float dist);
void RotatePoint(float cx, float cy, float angle, float &px, float &py);
void RotatePoint(D3DVECTOR center, float angleH, float angleV, D3DVECTOR &p);
void RotatePoint2(D3DVECTOR center, float angleH, float angleV, D3DVECTOR &p);
float RotateAngle(float x, float y);
float RotateAngle(FPOINT center, FPOINT p1, FPOINT p2);
float MidPoint(FPOINT a, FPOINT b, float px);
BOOL IsInsideTriangle(FPOINT a, FPOINT b, FPOINT c, FPOINT p);
BOOL LineFunction(FPOINT p1, FPOINT p2, float &a, float &b);
float IsInsideTriangle(FPOINT a, FPOINT b, FPOINT c);
*/
// Math module namespace
namespace Math
{
/* @{ */ // start of group
/** \struct Point math/point.h
\brief 2D point
Represents a 2D point (x, y).
Contains the required methods for operating on points.
All methods are made inline to maximize optimization.
*/
struct Point
{
//! X coord
float x;
//! Y coord
float y;
//! Constructs a zero point: (0,0)
inline Point()
{
LoadZero();
}
//! Constructs a point from given coords: (x,y)
inline Point(float x, float y)
{
this->x = x;
this->y = y;
}
//! Sets the zero point: (0,0)
inline void LoadZero()
{
x = y = 0.0f;
}
//! Returns the distance from (0,0) to the point (x,y)
inline float Length()
{
return std::sqrt(x*x + y*y);
}
};
//! Returns the distance between two points
inline float Distance(const Point &a, const Point &b)
{
return sqrt((a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y));
}
/* @} */ // end of group
}; // namespace Math
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