/*
SoftFX (Software graphics manipulation library)
Copyright (C) 2003 Kevin Gadd

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

struct PythagorasLevel {
    Byte V[256];
};

const double PythagorasConstant = 0.707106781186547;

extern PythagorasLevel *PythagorasTable;
extern PythagorasLevel **PythagorasRootTable;

inline Byte PythagorasLookup(Byte A, Byte B) {
    return PythagorasRootTable[A]->V[B];
}

Export inline PythagorasLevel* PythagorasLevelLookup(Byte A) {
    return PythagorasRootTable[A];
}

#define PythagorasFromLevel(t, v) t->V[v]
#define PythagorasFromLevel2(t1, v1, t2, v2) t1->V[v1] + t2->V[v2]