2012-04-28 20:32:37 +00:00
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// * This file is part of the COLOBOT source code
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// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
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// *
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// * This program is free software: you can redistribute it and/or modify
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// * it under the terms of the GNU General Public License as published by
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// * the Free Software Foundation, either version 3 of the License, or
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// * (at your option) any later version.
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// *
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// * This program is distributed in the hope that it will be useful,
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// * but WITHOUT ANY WARRANTY; without even the implied warranty of
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// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// * GNU General Public License for more details.
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// *
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// * You should have received a copy of the GNU General Public License
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// * along with this program. If not, see http://www.gnu.org/licenses/.
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2012-05-01 18:05:48 +00:00
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/** @defgroup MathPointModule math/point.h
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Contains the Point struct and related functions.
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*/
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2012-04-28 20:32:37 +00:00
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2012-04-28 19:46:26 +00:00
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#pragma once
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2012-04-28 20:56:07 +00:00
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#include <cmath>
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2012-05-01 18:05:48 +00:00
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/* TODO
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FPOINT RotatePoint(FPOINT center, float angle, FPOINT p);
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FPOINT RotatePoint(float angle, FPOINT p);
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FPOINT RotatePoint(float angle, float dist);
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void RotatePoint(float cx, float cy, float angle, float &px, float &py);
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void RotatePoint(D3DVECTOR center, float angleH, float angleV, D3DVECTOR &p);
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void RotatePoint2(D3DVECTOR center, float angleH, float angleV, D3DVECTOR &p);
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float RotateAngle(float x, float y);
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float RotateAngle(FPOINT center, FPOINT p1, FPOINT p2);
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float MidPoint(FPOINT a, FPOINT b, float px);
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BOOL IsInsideTriangle(FPOINT a, FPOINT b, FPOINT c, FPOINT p);
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BOOL LineFunction(FPOINT p1, FPOINT p2, float &a, float &b);
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float IsInsideTriangle(FPOINT a, FPOINT b, FPOINT c);
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*/
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// Math module namespace
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2012-04-28 20:56:07 +00:00
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namespace Math
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{
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2012-05-01 18:05:48 +00:00
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/* @{ */ // start of group
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/** \struct Point math/point.h
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\brief 2D point
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2012-04-28 20:56:07 +00:00
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Represents a 2D point (x, y).
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Contains the required methods for operating on points.
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All methods are made inline to maximize optimization.
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*/
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struct Point
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{
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//! X coord
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float x;
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//! Y coord
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float y;
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2012-05-01 18:05:48 +00:00
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//! Constructs a zero point: (0,0)
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2012-04-28 20:56:07 +00:00
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inline Point()
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{
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LoadZero();
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}
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2012-05-01 18:05:48 +00:00
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//! Constructs a point from given coords: (x,y)
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2012-04-28 20:56:07 +00:00
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inline Point(float x, float y)
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{
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this->x = x;
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this->y = y;
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}
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2012-05-01 18:05:48 +00:00
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//! Sets the zero point: (0,0)
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2012-04-28 20:56:07 +00:00
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inline void LoadZero()
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{
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x = y = 0.0f;
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}
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2012-05-01 18:05:48 +00:00
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//! Returns the distance from (0,0) to the point (x,y)
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2012-04-28 20:56:07 +00:00
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inline float Length()
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{
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return std::sqrt(x*x + y*y);
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}
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};
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2012-04-28 19:46:26 +00:00
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2012-05-01 18:05:48 +00:00
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//! Returns the distance between two points
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inline float Distance(const Point &a, const Point &b)
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{
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return sqrt((a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y));
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}
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2012-04-28 19:46:26 +00:00
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2012-05-01 18:05:48 +00:00
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/* @} */ // end of group
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2012-04-28 20:56:07 +00:00
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2012-05-01 18:05:48 +00:00
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}; // namespace Math
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