/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:BSD$+
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** You may use this file under the terms of the BSD license as follows:+
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**+
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** "Redistribution and use in source and binary forms, with or without+
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** modification, are permitted provided that the following conditions are+
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** met:+
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**   * Redistributions of source code must retain the above copyright+
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**     notice, this list of conditions and the following disclaimer.+
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**   * Redistributions in binary form must reproduce the above copyright+
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**     notice, this list of conditions and the following disclaimer in+
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**     the documentation and/or other materials provided with the+
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**     distribution.+
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**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor+
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**     the names of its contributors may be used to endorse or promote+
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**     products derived from this software without specific prior written+
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**     permission.+
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**+
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtCore>+
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+
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#include <stdlib.h>+
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+
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#include "tetrixpiece.h"+
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+
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//! [0]+
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void TetrixPiece::setRandomShape()+
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{+
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    setShape(TetrixShape(qrand() % 7 + 1));+
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}+
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//! [0]+
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+
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//! [1]+
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void TetrixPiece::setShape(TetrixShape shape)+
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{+
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    static const int coordsTable[8][4][2] = {+
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        { { 0, 0 },   { 0, 0 },   { 0, 0 },   { 0, 0 } },+
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        { { 0, -1 },  { 0, 0 },   { -1, 0 },  { -1, 1 } },+
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        { { 0, -1 },  { 0, 0 },   { 1, 0 },   { 1, 1 } },+
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        { { 0, -1 },  { 0, 0 },   { 0, 1 },   { 0, 2 } },+
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        { { -1, 0 },  { 0, 0 },   { 1, 0 },   { 0, 1 } },+
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        { { 0, 0 },   { 1, 0 },   { 0, 1 },   { 1, 1 } },+
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        { { -1, -1 }, { 0, -1 },  { 0, 0 },   { 0, 1 } },+
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        { { 1, -1 },  { 0, -1 },  { 0, 0 },   { 0, 1 } }+
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    };+
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+
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    for (int i = 0; i < 4 ; i++) {+
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        for (int j = 0; j < 2; ++j)+
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            coords[i][j] = coordsTable[shape][i][j];+
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    }+
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    pieceShape = shape;+
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//! [1] //! [2]+
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}+
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//! [2]+
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+
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//! [3]+
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int TetrixPiece::minX() const+
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{+
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    int min = coords[0][0];+
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    for (int i = 1; i < 4; ++i)+
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        min = qMin(min, coords[i][0]);+
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    return min;+
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}+
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+
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int TetrixPiece::maxX() const+
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//! [3] //! [4]+
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{+
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    int max = coords[0][0];+
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    for (int i = 1; i < 4; ++i)+
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        max = qMax(max, coords[i][0]);+
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    return max;+
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}+
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//! [4]+
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+
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//! [5]+
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int TetrixPiece::minY() const+
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{+
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    int min = coords[0][1];+
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    for (int i = 1; i < 4; ++i)+
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        min = qMin(min, coords[i][1]);+
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    return min;+
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}+
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+
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int TetrixPiece::maxY() const+
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//! [5] //! [6]+
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{+
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    int max = coords[0][1];+
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    for (int i = 1; i < 4; ++i)+
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        max = qMax(max, coords[i][1]);+
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    return max;+
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}+
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//! [6]+
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+
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//! [7]+
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TetrixPiece TetrixPiece::rotatedLeft() const+
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{+
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    if (pieceShape == SquareShape)+
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        return *this;+
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+
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    TetrixPiece result;+
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    result.pieceShape = pieceShape;+
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    for (int i = 0; i < 4; ++i) {+
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        result.setX(i, y(i));+
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        result.setY(i, -x(i));+
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    }+
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//! [7]+
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    return result;+
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}+
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+
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//! [9]+
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TetrixPiece TetrixPiece::rotatedRight() const+
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{+
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    if (pieceShape == SquareShape)+
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        return *this;+
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+
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    TetrixPiece result;+
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    result.pieceShape = pieceShape;+
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    for (int i = 0; i < 4; ++i) {+
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        result.setX(i, -y(i));+
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        result.setY(i, x(i));+
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    }+
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//! [9]+
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    return result;+
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}+
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