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split piecelibrary, new Field2D

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This commit is contained in:
Stefan Bühler 2009-01-09 12:44:39 +01:00
parent 6f39c10d93
commit b3abfc3538
9 changed files with 481 additions and 79 deletions
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131
src/field2d.cpp Normal file
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@ -0,0 +1,131 @@
/***************************************************************************
* Copyright (C) 2009 by Stefan Bühler *
* stbuehler@web.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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "field2d.h"
#include <math.h>
#include <QResizeEvent>
#include <QMouseEvent>
#include <QWheelEvent>
#include <QPainter>
namespace toruschess {
Field2D::Field2D(Game *game, QWidget *parent)
: QWidget(parent), m_lib(new PieceLibrary(this)), m_game(game), m_fieldWidth(360), m_fieldHeight(360), m_originX(23), m_originY(23) {
for (int x = 0; x < 8; x++) for (int y = 0; y < 8; y++) m_marked[x][y] = false;
m_lib->setSize(m_fieldWidth / 8, m_fieldHeight / 8);
}
void Field2D::markMoves(const QList<Move> &moves) {
foreach(Move m, m_markedMoves) m_marked[m.to().x()][m.to().y()] = false;
m_markedMoves = moves;
foreach(Move m, m_markedMoves) m_marked[m.to().x()][m.to().y()] = true;
update();
}
QSize Field2D::sizeHint() const {
return QSize(17*m_fieldWidth/8, 17*m_fieldHeight/8);
}
void Field2D::paintEvent(QPaintEvent *) {
QPainter pt(this);
int pieceWidth = m_fieldWidth / 8, pieceHeight = m_fieldHeight / 8;
int winWidth = width(), winHeight = height();
for (int x = 0; x < 8; x++)
for (int y = 0; y < 8; y++) {
bool marked = m_marked[x][y];
int place = m_game->field()->place(Pos(x, y));
/* #D18B47 for dark, #FFCE9E for white */
QBrush fieldBG = ((x+y) % 2 == 1) ? QBrush(QColor(0xD1, 0x8B, 0x47)) : QBrush(QColor(0xFF, 0xCE, 0x9E));
for (int px = m_originX - m_fieldWidth + x*pieceWidth; px < winWidth; px += m_fieldWidth)
for (int py = m_originY - m_fieldHeight + y*pieceHeight; py < winHeight; py += m_fieldHeight) {
QRect prect(px, py, pieceWidth - 1, pieceHeight - 1);
pt.fillRect(prect, fieldBG);
m_lib->paint(pt, place, prect);
if (marked) {
int r = qMax(1, (pieceWidth + pieceHeight) / 36);
pt.setBrush(place != 0 ? Qt::green : Qt::white);
pt.setPen(Qt::red);
pt.drawEllipse(QPoint(px + pieceWidth / 2, py + pieceHeight / 2), r, r);
}
}
}
}
void Field2D::mousePressEvent(QMouseEvent *event) {
if (event->button() == Qt::LeftButton) {
QList<Move> moves;
Pos p = findPos(event->x(), event->y());
moves = m_game->field()->validMoves(p);
markMoves(moves);
}
m_mouseLastX = event->x();
m_mouseLastY = event->y();
}
void Field2D::mouseMoveEvent(QMouseEvent *event) {
if (event->buttons() & Qt::RightButton) {
m_originX += event->x() - m_mouseLastX;
m_originY += event->y() - m_mouseLastY;
checkSizes();
update();
}
m_mouseLastX = event->x();
m_mouseLastY = event->y();
}
void Field2D::mouseReleaseEvent(QMouseEvent *event) {
if (event->button() == Qt::LeftButton) {
if (m_markedMoves.size() == 0) return;
Pos from = m_markedMoves[0].from();
QList<Move> moves;
markMoves(QList<Move>());
Pos p = findPos(event->x(), event->y());
Move m(m_game->field(), from, p);
m_game->move(m);
}
m_mouseLastX = event->x();
m_mouseLastY = event->y();
}
void Field2D::wheelEvent(QWheelEvent *event) {
double zoom = pow(1.2, event->delta() / 120);
int max = qMin(width(), height());
m_fieldWidth = qMax(120, qMin(max, (int) (m_fieldWidth * zoom))) & ~(0x7);
m_fieldHeight = qMax(120, qMin(max, (int) (m_fieldHeight * zoom))) & ~(0x7);
m_lib->setSize(m_fieldWidth / 8, m_fieldHeight / 8);
checkSizes();
update();
}
void Field2D::checkSizes() {
m_originX = m_originX % m_fieldWidth;
m_originY = m_originY % m_fieldHeight;
if (m_originX < 0) m_originX += m_fieldWidth;
if (m_originY < 0) m_originY += m_fieldHeight;
}
Pos Field2D::findPos(int x, int y) {
return Pos(8 * ((x - m_originX) % m_fieldWidth) / m_fieldWidth, 8 * ((y - m_originY) % m_fieldHeight) / m_fieldHeight);
}
}

68
src/field2d.h Normal file
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/***************************************************************************
* Copyright (C) 2009 by Stefan Bühler *
* stbuehler@web.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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef TORUSCHESSFIELD2D_H
#define TORUSCHESSFIELD2D_H
#include "toruschess.h"
#include "piecelibrary.h"
#include <QWidget>
#include <QList>
/**
@author Stefan Bühler <stbuehler@web.de>
*/
namespace toruschess {
class Field2D : public QWidget {
Q_OBJECT
public:
Field2D(Game *game, QWidget *parent = 0);
void markMoves(const QList<Move> &moves);
virtual QSize sizeHint() const;
protected:
virtual void paintEvent(QPaintEvent *event);
virtual void mousePressEvent(QMouseEvent *event);
virtual void mouseMoveEvent(QMouseEvent *event);
virtual void mouseReleaseEvent(QMouseEvent *event);
virtual void wheelEvent(QWheelEvent *event);
void checkSizes();
Pos findPos(int x, int y);
private:
PieceLibrary *m_lib;
Game *m_game;
bool m_marked[8][8];
QList<Move> m_markedMoves;
int m_fieldWidth, m_fieldHeight;
int m_originX, m_originY;
int m_mouseLastX, m_mouseLastY;
};
}
#endif

72
src/piecelibrary.cpp Normal file
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@ -0,0 +1,72 @@
/***************************************************************************
* Copyright (C) 2009 by Stefan Bühler *
* stbuehler@web.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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "piecelibrary.h"
#include <QPainter>
namespace toruschess {
PieceLibrary::PieceLibrary(QObject *parent)
: QObject(parent), m_pieces(0), m_buffers(0) {
setSize(45, 45);
}
PieceLibrary::~PieceLibrary() {
delete [] m_pieces;
delete [] m_buffers;
}
void PieceLibrary::setSize(int width, int height) {
m_width = qMax(10, width);
m_height = qMax(10, height);
if (m_buffers) {
for (int i = 0; i < 12; i++) {
delete m_buffers[i];
}
} else {
m_pieces = new QSvgRenderer* [12];
m_buffers = new QImage* [12];
for (int i = 0; i < 12; i++) {
m_pieces[i] = new QSvgRenderer(QString(":/media/chess_%1.svg").arg(i+1), this);
}
}
for (int i = 0; i < 12; i++) {
m_buffers[i] = new QImage(QSize(m_width, m_height), QImage::Format_ARGB32_Premultiplied);
m_buffers[i]->fill(0x0);
QPainter p(m_buffers[i]);
m_pieces[i]->render(&p);
}
}
void PieceLibrary::paint(QPainter &pt, int place) const {
if (place == 0) return;
if (place < 0) place = 6 - place;
if (place <= 0 || place > 12) return;
pt.drawImage(0, 0, *m_buffers[place-1]);
}
void PieceLibrary::paint(QPainter &pt, int place, const QRect &rect) const {
if (place == 0) return;
if (place < 0) place = 6 - place;
if (place <= 0 || place > 12) return;
pt.drawImage(rect, *m_buffers[place-1]);
}
}

51
src/piecelibrary.h Normal file
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@ -0,0 +1,51 @@
/***************************************************************************
* Copyright (C) 2009 by Stefan Bühler *
* stbuehler@web.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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef TORUSCHESSPIECELIBRARY_H
#define TORUSCHESSPIECELIBRARY_H
#include <QSvgRenderer>
/**
@author Stefan Bühler <stbuehler@web.de>
*/
namespace toruschess {
class PieceLibrary : public QObject {
Q_OBJECT
public:
PieceLibrary(QObject *parent);
virtual ~PieceLibrary();
QSize pieceSize() const { return QSize(m_width, m_height); }
QSize minPieceSize() const { return QSize(20, 20); }
void setSize(int width, int height);
void paint(QPainter &pt, int place) const;
void paint(QPainter &pt, int place, const QRect &rect) const;
private:
QSvgRenderer **m_pieces;
QImage **m_buffers;
int m_width, m_height;
};
}
#endif

8
src/src.pro
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@ -1,6 +1,8 @@
SOURCES += main.cpp \ SOURCES += main.cpp \
testgame.cpp \ testgame.cpp \
toruschess.cpp toruschess.cpp \
field2d.cpp \
piecelibrary.cpp
TEMPLATE = app TEMPLATE = app
CONFIG += warn_on \ CONFIG += warn_on \
thread \ thread \
@ -14,6 +16,8 @@ RESOURCES += media.qrc
QT += svg \ QT += svg \
opengl opengl
HEADERS += testgame.h \ HEADERS += testgame.h \
toruschess.h toruschess.h \
field2d.h \
piecelibrary.h
CONFIG -= release CONFIG -= release

48
src/testgame.cpp
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@ -20,51 +20,14 @@
#include "testgame.h" #include "testgame.h"
#include <QGridLayout> #include <QGridLayout>
#include <QPainter>
#include <QResizeEvent> #include <QResizeEvent>
#include <QMouseEvent> #include <QMouseEvent>
#include <QPainter>
#include "field2d.h"
namespace toruschess { namespace toruschess {
PieceLibrary::PieceLibrary(QObject *parent)
: QObject(parent), m_pieces(0), m_buffers(0) {
setSize(45, 45);
}
PieceLibrary::~PieceLibrary() {
delete [] m_pieces;
delete [] m_buffers;
}
void PieceLibrary::setSize(int width, int height) {
m_width = qMax(10, width);
m_height = qMax(10, height);
if (m_buffers) {
for (int i = 0; i < 12; i++) {
delete m_buffers[i];
}
} else {
m_pieces = new QSvgRenderer* [12];
m_buffers = new QImage* [12];
for (int i = 0; i < 12; i++) {
m_pieces[i] = new QSvgRenderer(QString(":/media/chess_%1.svg").arg(i+1), this);
}
}
for (int i = 0; i < 12; i++) {
m_buffers[i] = new QImage(QSize(m_width, m_height), QImage::Format_ARGB32_Premultiplied);
m_buffers[i]->fill(0x0);
QPainter p(m_buffers[i]);
m_pieces[i]->render(&p);
}
}
void PieceLibrary::paint(QPainter &pt, int piece) const {
if (piece == 0) return;
if (piece < 0) piece = 6 - piece;
if (piece <= 0 || piece > 12) return;
pt.drawImage(0, 0, *m_buffers[piece-1]);
}
TestPlace::TestPlace(QWidget *parent, const PieceLibrary *lib, const Field *field, const Pos &p) TestPlace::TestPlace(QWidget *parent, const PieceLibrary *lib, const Field *field, const Pos &p)
: QWidget(parent), m_field(field), m_lib(lib), m_pos(p), m_mark(false) { : QWidget(parent), m_field(field), m_lib(lib), m_pos(p), m_mark(false) {
setMinimumSize(m_lib->minPieceSize()); setMinimumSize(m_lib->minPieceSize());
@ -149,8 +112,9 @@ namespace toruschess {
TestGame::TestGame(QWidget *parent) : QMainWindow(parent), m_game(new Game()) { TestGame::TestGame(QWidget *parent) : QMainWindow(parent), m_game(new Game()) {
setWindowTitle("Torus Chess"); setWindowTitle("Torus Chess");
PieceLibrary *lib = new PieceLibrary(this); // PieceLibrary *lib = new PieceLibrary(this);
setCentralWidget(new TestField(this, lib, m_game)); // setCentralWidget(new TestField(this, lib, m_game));
setCentralWidget(new Field2D(m_game, this));
} }
} }

19
src/testgame.h
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@ -26,30 +26,13 @@
#include <QSize> #include <QSize>
#include "toruschess.h" #include "toruschess.h"
#include "piecelibrary.h"
/** /**
@author Stefan Bühler <stbuehler@web.de> @author Stefan Bühler <stbuehler@web.de>
*/ */
namespace toruschess { namespace toruschess {
class PieceLibrary : public QObject {
Q_OBJECT
public:
PieceLibrary(QObject *parent);
virtual ~PieceLibrary();
QSize pieceSize() const { return QSize(m_width, m_height); }
QSize minPieceSize() const { return QSize(20, 20); }
void setSize(int width, int height);
void paint(QPainter &pt, int piece) const;
private:
QSvgRenderer **m_pieces;
QImage **m_buffers;
int m_width, m_height;
};
class TestPlace : public QWidget { class TestPlace : public QWidget {
Q_OBJECT Q_OBJECT
public: public:

120
src/toruschess.cpp
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@ -21,6 +21,17 @@
namespace toruschess { namespace toruschess {
QString state2string(GameState state) {
switch (state) {
case TURN_WHITE: return "White's turn";
case TURN_BLACK: return "Black's turn";
case WON_WHITE: return "White is the winner";
case WON_BLACK: return "Black is the winner";
case DRAW: return "Draw game";
}
return "Invalid GameState";
}
Move::Move(const Field* field, const Pos &from, const Pos &to) Move::Move(const Field* field, const Pos &from, const Pos &to)
: m_from(from), m_to(to), m_prevFrom(field->place(from)), m_prevTo(field->place(to)), m_player(field->player(from)) { } : m_from(from), m_to(to), m_prevFrom(field->place(from)), m_prevTo(field->place(to)), m_player(field->player(from)) { }
@ -39,6 +50,10 @@ namespace toruschess {
memcpy(m_places, start_field, sizeof(start_field)); memcpy(m_places, start_field, sizeof(start_field));
} }
void Field::reset() {
memcpy(m_places, start_field, sizeof(start_field));
}
void tryDirection(QList<Move> &moves, const Field *field, int thePlace, const Pos &from, int dx, int dy) { void tryDirection(QList<Move> &moves, const Field *field, int thePlace, const Pos &from, int dx, int dy) {
for (int d = 1; d < 8; d++) { for (int d = 1; d < 8; d++) {
Pos to = Pos(from.x() + d*dx, from.y() + d*dy); Pos to = Pos(from.x() + d*dx, from.y() + d*dy);
@ -152,16 +167,12 @@ foundking:
Field testField(*this); Field testField(*this);
testField.place(from) = 0; testField.place(from) = 0;
bool movedKing = (from == pking); bool movedKing = (from == pking);
Player player = place2player(thePlace);
foreach(Move m, moves) { foreach(Move m, moves) {
testField.place(m.to()) = thePlace; testField.place(m.to()) = thePlace;
for (int x = 0; x < 8; x++) for (int y = 0; y < 8; y++) { if (!testField.inCheck(player, movedKing ? m.to() : pking)) {
Pos curp(x, y); resMoves.push_back(m);
if (0 > testField.place(curp) * thePlace && testField.simpleValidMoves(curp).contains(Move(&testField, curp, movedKing ? m.to() : pking))) {
goto invalidmove;
}
} }
resMoves.push_back(m);
invalidmove:
testField.place(m.to()) = m.prevTo(); testField.place(m.to()) = m.prevTo();
} }
return resMoves; return resMoves;
@ -184,12 +195,101 @@ invalidmove:
place(m.to()) = m.prevTo(); place(m.to()) = m.prevTo();
return false; return false;
} }
bool Field::inCheck(Player player, const Pos &pking) const {
for (int x = 0; x < 8; x++) for (int y = 0; y < 8; y++) {
Pos curp(x, y);
if (0 > place(curp) * player && simpleValidMoves(curp).contains(Move(this, curp, pking))) {
return true;
}
}
return false;
}
bool Field::inCheck(Player player) const {
/* find king */
for (int x = 0; x < 8; x++) for (int y = 0; y < 8; y++) {
Pos curp(x, y);
if (piece(curp) == KING && 0 < place(curp) * player) {
return inCheck(player, curp);
}
}
return false; /* error, no king found */
}
Game::Game(QObject *parent) Game::Game(QObject *parent)
: QObject(parent), m_field(new Field()) { } : QObject(parent), m_field(new Field()), m_state(TURN_WHITE) { }
Game::~Game() { Game::~Game() {
delete m_field; delete m_field;
} }
bool Game::move(const Move &m) {
switch (m_state) {
case TURN_WHITE:
if (m.player() != WHITE) return false;
break;
case TURN_BLACK:
if (m.player() != BLACK) return false;
break;
default:
return false;
}
if (m_field->move(m)) {
m_moves.push_back(m);
if (m_state == TURN_WHITE) {
m_state = TURN_BLACK;
if (possibleMoves().empty()) {
if (m_field->inCheck(BLACK)) {
m_state = WON_WHITE;
} else {
m_state = DRAW;
}
}
} else {
m_state = TURN_WHITE;
if (possibleMoves().empty()) {
if (m_field->inCheck(WHITE)) {
m_state = WON_BLACK;
} else {
m_state = DRAW;
}
}
}
emit moved(m);
emit changed(m_state);
emit updated();
return true;
}
return false;
}
void Game::restart() {
m_state = TURN_WHITE;
m_field->reset();
emit changed(m_state);
emit started();
emit updated();
}
QList<Move> Game::possibleMoves() const {
Player player = NOPLAYER;
switch (m_state) {
case TURN_WHITE:
player = WHITE;
break;
case TURN_BLACK:
player = BLACK;
break;
default:
return QList<Move>();
}
QList<Move> moves;
for (int x = 0; x < 8; x++) for (int y = 0; y < 8; y++) {
Pos curp(x, y);
if (0 < m_field->place(curp) * player)
moves += m_field->validMoves(curp);
}
return moves;
}
} }

43
src/toruschess.h
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@ -34,9 +34,21 @@ namespace toruschess {
typedef enum { BLACK = -1, NOPLAYER = 0, WHITE = 1 } Player; typedef enum { BLACK = -1, NOPLAYER = 0, WHITE = 1 } Player;
typedef enum { NOPIECE = 0, PAWN = 1, KNIGHT = 2, BISHOP = 3, ROOK = 4, QUEEN = 5, KING = 6 } Piece; typedef enum { NOPIECE = 0, PAWN = 1, KNIGHT = 2, BISHOP = 3, ROOK = 4, QUEEN = 5, KING = 6 } Piece;
typedef enum { TURN_WHITE, TURN_BLACK, WON_WHITE, WON_BLACK, DRAW } GameState;
inline Player place2player(int place) {
return (place < 0) ? BLACK : (place > 0) ? WHITE : NOPLAYER;
}
inline Piece place2piece(int place) {
return (Piece) qAbs(place);
}
QString state2string(GameState state);
class Pos { class Pos {
public: public:
Pos() : m_x(0), m_y(0) { }
Pos(int x, int y) : m_x(x % 8), m_y(y % 8) { } Pos(int x, int y) : m_x(x % 8), m_y(y % 8) { }
int x() const { return m_x; } int x() const { return m_x; }
@ -78,11 +90,10 @@ namespace toruschess {
public: public:
Field(); Field();
Player player(const Pos &p) const { void reset();
int pl = place(p);
return (pl < 0) ? BLACK : (pl > 0) ? WHITE : NOPLAYER; Player player(const Pos &p) const { return place2player(place(p)); }
} Piece piece(const Pos &p) const { return place2piece(place(p)); }
Piece piece(const Pos &p) const { return (Piece) qAbs(place(p)); }
int place(const Pos &p) const { return m_places[p.y()][p.x()]; } int place(const Pos &p) const { return m_places[p.y()][p.x()]; }
int& place(const Pos &p) { return m_places[p.y()][p.x()]; } int& place(const Pos &p) { return m_places[p.y()][p.x()]; }
@ -91,6 +102,9 @@ namespace toruschess {
bool move(const Move &m); bool move(const Move &m);
bool undo(const Move &m); bool undo(const Move &m);
bool inCheck(Player player, const Pos &pking) const;
bool inCheck(Player player) const;
private: private:
QList<Move> simpleValidMoves(const Pos &from) const; QList<Move> simpleValidMoves(const Pos &from) const;
@ -104,11 +118,26 @@ namespace toruschess {
virtual ~Game(); virtual ~Game();
const Field* field() const { return m_field; } const Field* field() const { return m_field; }
GameState state() const { return m_state; }
bool move(const Move &m) { return m_field->move(m); } QList<Move> moves() const { return m_moves; }
bool move(const Move &m);
void restart();
QList<Move> possibleMoves() const;
signals:
void moved(Move m);
void updated();
void undone(Move m);
void changed(GameState state);
void started();
private: private:
Field *m_field; Field *m_field;
GameState m_state;
QList<Move> m_moves;
}; };
} }