116 lines
2.0 KiB
C
116 lines
2.0 KiB
C
/*
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This file is part of Warzone 2100.
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Copyright (C) 2008 Freddie Witherden
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Copyright (C) 2008 Warzone Resurrection Project
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Warzone 2100 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 2 of the License, or
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(at your option) any later version.
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Warzone 2100 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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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef GEOM_H_
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#define GEOM_H_
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// TODO: Make this cross platform (MSVC)
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#include <stdbool.h>
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#include <math.h>
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/*
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* Alignment schemes
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*/
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typedef enum
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{
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LEFT,
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CENTRE,
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RIGHT
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} hAlign;
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typedef enum
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{
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TOP,
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MIDDLE,
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BOTTOM
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} vAlign;
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/*
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* A point
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*/
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typedef struct _point point;
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typedef point size;
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struct _point
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{
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float x;
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float y;
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};
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/*
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* A rectangle
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*/
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typedef struct _rect rect;
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struct _rect
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{
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point topLeft;
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point bottomRight;
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};
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/*
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* Helper macros
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*/
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#define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#define MAX(a, b) (((a) > (b)) ? (a) : (b))
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/*
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* Method signatures
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*/
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/**
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* Creates a rect from an absolute point and a size.
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*
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* @param p
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* @param s
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* @return A rect.
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*/
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rect rectFromPointAndSize(point p, size s);
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/**
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* Checks to see if the point p is inside of the rectangle r.
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*
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* @param p
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* @param r
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* @return If the point is in the rectangle.
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*/
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bool pointInRect(point p, rect r);
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/**
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* Adds point p to point q.
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*
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* @param p
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* @param q
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* @return p + q.
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*/
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point pointAdd(point p, point q);
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/**
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* Subtracts point q from point p.
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*
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* @param p
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* @param q
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* @return p - q.
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*/
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point pointSub(point p, point q);
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#endif /*GEOM_H_*/
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