warzone2100/lib/betawidget/geom.c

58 lines
1.3 KiB
C

/*
This file is part of Warzone 2100.
Copyright (C) 2008 Freddie Witherden
Copyright (C) 2008 Warzone Resurrection Project
Warzone 2100 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.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "geom.h"
rect rectFromPointAndSize(point p, size s)
{
rect r;
r.topLeft = p;
r.bottomRight.x = p.x + s.x;
r.bottomRight.y = p.y + s.y;
return r;
}
bool pointInRect(point p, rect r)
{
return (r.topLeft.x < p.x
&& r.bottomRight.x > p.x
&& r.topLeft.y < p.y
&& r.bottomRight.y > p.y);
}
point pointAdd(point p, point q)
{
point r;
r.x = p.x + q.x;
r.y = p.y + q.y;
return r;
}
point pointSub(point p, point q)
{
point r;
r.x = p.x - q.x;
r.y = p.y - q.y;
return r;
}