Matrix4x4.h

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 WATCHMAKER_MATRIX4X4_H
#define WATCHMAKER_MATRIX4X4_H

#include "common/scummsys.h"
#include "common/textconsole.h"

namespace Watchmaker {

struct Matrix4x4 {
    float data[16] = {};

    void setIdentity() {
        setValue(1, 1, 1.0f);
        setValue(2, 2, 1.0f);
        setValue(3, 3, 1.0f);
        setValue(4, 4, 1.0f);
    }

    void setValue(int row, int col, float value) {
        data[(col - 1) * 4 + (row - 1)] = value;
    }
    float getValue(int row, int col) const {
        return data[(col - 1) * 4 + (row - 1)];
    }
    void print() const {
        for (int row = 1; row <= 4; row++) {
            for (int col = 1; col <= 4; col++) {
                warning("%f ", getValue(row, col));
            }
            warning(" ");
        }
    }
    bool operator==(const Matrix4x4 &rhs) const {
        for (int row = 1; row <= 4; row++) {
            for (int col = 1; col <= 4; col++) {
                if (getValue(row, col) != rhs.getValue(row, col)) {
                    return false;
                }
            }
        }
        return true;
    }
};


} // End of namespace Watchmaker

#endif // WATCHMAKER_MATRIX4X4_H