/
aatriangle.hpp
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/
aatriangle.hpp
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// SuperTux
// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
// 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/>.
#ifndef HEADER_SUPERTUX_MATH_AATRIANGLE_HPP
#define HEADER_SUPERTUX_MATH_AATRIANGLE_HPP
#include "math/rectf.hpp"
/**
* An axis-aligned triangle (ie. a triangle where 2 sides are parallel to the x-
* and y-axis.
*/
class AATriangle
{
public:
/** Directions:
*
* SOUTHEWEST NORTHEAST SOUTHEAST NORTHWEST
* * or *---* or * or *---*
* | \ \ | / | | /
* | \ \ | / | | /
* *---* * *---* *
*
* Deform flags: (see docs/aatriangletypes.png for details)
*/
enum Direction {
SOUTHWEST = 0,
NORTHEAST,
SOUTHEAST,
NORTHWEST,
DIRECTION_MASK = 0x0003,
DEFORM_BOTTOM = 0x0010,
DEFORM_TOP = 0x0020,
DEFORM_LEFT = 0x0030,
DEFORM_RIGHT = 0x0040,
DEFORM_MASK = 0x0070
};
static int vertical_flip(int dir);
public:
AATriangle() :
bbox(),
dir(SOUTHWEST)
{
}
AATriangle(const Rectf& newbbox, int newdir) :
bbox(newbbox),
dir(newdir)
{
}
public:
Rectf bbox;
int dir;
};
#endif
/* EOF */