com.alee.examples.groups.desktoppane.tetris.Tetris Maven / Gradle / Ivy
/*
* This file is part of WebLookAndFeel library.
*
* WebLookAndFeel library 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.
*
* WebLookAndFeel 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WebLookAndFeel library. If not, see tickListeners = new ArrayList ( 1 );
private static final List tetrisListeners = new ArrayList ( 1 );
// Game state variables
private boolean gameRunning = false;
private boolean gameOver = false;
private int stage = 1;
private int linesDestroyed = 0;
private int score = 0;
// Figures queue
private final List figuresQueue = new ArrayList ();
// Fallen figure blocks
private final Map terrain = new HashMap ();
// Game time counter
private final WebTimer pusher;
// Current falling figure
private Figure currentFigure = null;
// Keyboard events
private Action action = null;
private final WebTimer keyTimer;
// Next figure field
private final JComponent nextFigureField;
// Use internal hotkeys or not
private boolean useInternalHotkeys = true;
public Tetris ()
{
super ();
SwingUtils.setOrientation ( this );
setOpaque ( false );
setFocusable ( true );
figuresQueue.add ( new Figure () );
keyTimer = new WebTimer ( "Tetris.keyTimer", 60, new ActionListener ()
{
@Override
public void actionPerformed ( final ActionEvent e )
{
if ( gameRunning )
{
if ( action.equals ( Action.down ) )
{
performOneTick ();
repaint ();
}
}
}
} );
keyTimer.setInitialDelay ( 0 );
pusher = new WebTimer ( "Tetris.gameTimer", getTickTime (), null )
{
@Override
public WebTimer start ()
{
gameRunning = true;
return super.start ();
}
@Override
public WebTimer stop ()
{
gameRunning = false;
return super.stop ();
}
};
pusher.setInitialDelay ( 0 );
pusher.addActionListener ( new ActionListener ()
{
@Override
public void actionPerformed ( final ActionEvent e )
{
if ( keyTimer.isRunning () )
{
return;
}
performOneTick ();
}
} );
addKeyListener ( new KeyAdapter ()
{
@Override
public void keyPressed ( final KeyEvent e )
{
if ( gameRunning && currentFigure != null && !keyTimer.isRunning () )
{
if ( Hotkey.SPACE.isTriggered ( e ) || Hotkey.UP.isTriggered ( e ) )
{
currentFigure.rotate ( getTerrainShape () );
repaint ();
}
else if ( Hotkey.LEFT.isTriggered ( e ) )
{
currentFigure.moveLeft ( getTerrainShape () );
repaint ();
}
else if ( Hotkey.RIGHT.isTriggered ( e ) )
{
currentFigure.moveRight ( getTerrainShape () );
repaint ();
}
else if ( Hotkey.DOWN.isTriggered ( e ) )
{
action = Action.down;
keyTimer.start ();
}
}
}
@Override
public void keyReleased ( final KeyEvent e )
{
if ( useInternalHotkeys && Hotkey.P.isTriggered ( e ) )
{
if ( gameRunning )
{
pauseGame ();
}
else
{
unpauseGame ();
}
}
else if ( useInternalHotkeys && Hotkey.F2.isTriggered ( e ) )
{
newGame ();
}
else if ( keyTimer.isRunning () )
{
if ( Hotkey.DOWN.isTriggered ( e ) && action == Action.down )
{
keyTimer.stop ();
}
if ( !keyTimer.isRunning () )
{
action = null;
}
}
}
} );
addMouseListener ( new MouseAdapter ()
{
@Override
public void mousePressed ( final MouseEvent e )
{
requestFocusInWindow ();
}
} );
nextFigureField = new JComponent ()
{
{
setPreferredSize ( new Dimension ( 5 * BLOCK_SIDE + 5, 4 * BLOCK_SIDE + 4 ) );
addTickListener ( new TickListener ()
{
@Override
public void tick ()
{
repaint ();
}
} );
}
@Override
protected void paintComponent ( final Graphics g )
{
final Graphics2D g2d = ( Graphics2D ) g;
final Object aa = GraphicsUtils.setupAntialias ( g2d );
g2d.setPaint ( Color.WHITE );
g2d.fillRect ( 0, 0, getWidth (), getHeight () );
final Stroke old = g2d.getStroke ();
g2d.setStroke ( borderStroke );
g2d.setPaint ( Color.LIGHT_GRAY );
g2d.drawRect ( 0, 0, getWidth () - 1, getHeight () - 1 );
g2d.setStroke ( old );
getNextFigure ().paintFigurePreview ( g2d, this );
GraphicsUtils.restoreAntialias ( g2d, aa );
}
};
}
public boolean isUseInternalHotkeys ()
{
return useInternalHotkeys;
}
public void setUseInternalHotkeys ( final boolean useInternalHotkeys )
{
this.useInternalHotkeys = useInternalHotkeys;
}
public void newGame ()
{
gameOver = false;
stage = 1;
linesDestroyed = 0;
score = 0;
terrain.clear ();
currentFigure = null;
repaint ();
pusher.start ();
// Informing about new game start
fireNewGameStarted ();
}
public boolean isPaused ()
{
return !gameRunning;
}
public void pauseGame ()
{
if ( !gameOver )
{
pusher.stop ();
repaint ();
// Informing about pause
fireGamePaused ();
}
}
public void unpauseGame ()
{
if ( !gameOver )
{
pusher.start ();
repaint ();
// Informing about pause end
fireGameUnpaused ();
}
}
private enum Action
{
rotate,
left,
right,
down
}
private int getTickTime ()
{
return TICK_TIME - stage * TICK_TIME_DECREASE;
}
private void performOneTick ()
{
// If there is no current falling figure adding next one
final boolean cantMoveFuther = currentFigure != null && !currentFigure.canMoveDown ( getTerrainShape () );
if ( currentFigure == null || cantMoveFuther )
{
if ( cantMoveFuther )
{
// Disassembling figure
terrain.putAll ( currentFigure.getBlocks () );
// Determining blocks amount in each level
final List levels = new ArrayList ();
final Map blocksPerLevel = new HashMap ();
for ( final Point point : terrain.keySet () )
{
final Block block = terrain.get ( point );
final int level = block.getBlockPoint ().y;
if ( !levels.contains ( level ) )
{
levels.add ( level );
}
blocksPerLevel.put ( level, blocksPerLevel.containsKey ( level ) ? blocksPerLevel.get ( level ) + 1 : 1 );
}
// Sorting levels
Collections.sort ( levels );
// Checking for filled rows
for ( final int level : levels )
{
if ( blocksPerLevel.get ( level ) == BLOCKS_IN_WIDTH )
{
// Destroying filled rows and moving upper rows
final List toRemove = new ArrayList ();
final List toMove = new ArrayList ();
for ( final Point point : terrain.keySet () )
{
final Block block = terrain.get ( point );
final int lvl = block.getBlockPoint ().y;
if ( lvl == level )
{
// Adding block to delete list
toRemove.add ( point );
}
else if ( lvl < level )
{
// Adding block to move list
toMove.add ( point );
}
}
for ( final Point removed : toRemove )
{
terrain.remove ( removed );
}
// Moving upper blocks
Collections.sort ( toMove, new Comparator ()
{
@Override
public int compare ( final Point o1, final Point o2 )
{
final Integer int1 = o1.y;
final Integer int2 = o2.y;
return -int1.compareTo ( int2 );
}
} );
final Map movedBlocks = new HashMap ();
for ( final Point point : toMove )
{
final Block block = terrain.get ( point );
final int lvl = block.getBlockPoint ().y;
if ( lvl < level )
{
// Moving block
block.getBlockPoint ().y += 1;
terrain.remove ( point );
movedBlocks.put ( new Point ( point.x, point.y + BLOCK_SIDE + 1 ), block );
}
}
terrain.putAll ( movedBlocks );
// Increasing score
linesDestroyed++;
score += stage * BLOCKS_IN_WIDTH;
// Updating view
repaint ();
}
}
}
// Changing level
if ( linesDestroyed >= LINES_TO_CHANGE_STAGE )
{
linesDestroyed = 0;
stage++;
pusher.setDelay ( getTickTime () );
}
currentFigure = pushNextFigure ();
// todo Other check needed for case when figure lies upper than north border
// Game over case
if ( !currentFigure.canMoveDown ( getTerrainShape () ) )
{
gameOver = true;
repaint ();
// Informing about game over
fireGameOver ();
pusher.stop ();
return;
}
}
// Moving figure expand
currentFigure.moveDown ();
// Updating view
repaint ();
// Informing about game tick
fireTick ();
}
private Figure pushNextFigure ()
{
// Figure from queue
final Figure figure = figuresQueue.remove ( 0 );
if ( figuresQueue.size () == 0 )
{
figuresQueue.add ( new Figure () );
}
return figure;
}
@Override
public Dimension getPreferredSize ()
{
return PREFERRED_SIZE;
}
private GeneralPath getTerrainShape ()
{
final GeneralPath border = getBorderShape ();
for ( final Point point : terrain.keySet () )
{
border.append ( new Rectangle ( point, new Dimension ( BLOCK_SIDE, BLOCK_SIDE ) ), false );
}
return border;
}
private GeneralPath getBorderShape ()
{
final GeneralPath border = new GeneralPath ( GeneralPath.WIND_EVEN_ODD );
border.append ( new Rectangle ( -BLOCK_SIDE - 1, -BLOCK_SIDE * 3 - 3, BLOCK_SIDE, PREFERRED_SIZE.height + BLOCK_SIDE * 3 + 3 ),
false );
border.append ( new Rectangle ( -BLOCK_SIDE - 1, PREFERRED_SIZE.height + 1, PREFERRED_SIZE.width + 2 + BLOCK_SIDE * 2, BLOCK_SIDE ),
false );
border.append (
new Rectangle ( PREFERRED_SIZE.width + 1, -BLOCK_SIDE * 3 - 3, BLOCK_SIDE, PREFERRED_SIZE.height + BLOCK_SIDE * 3 + 3 ),
false );
return border;
}
public static String gameOverText1 = "Long way to go";
public static String gameOverText3 = "Not so fast!";
public static String gameOverText6 = "Next time...";
public static String gameOverText9 = "It went so well";
public static String gameOverText12 = "Close call";
public static String gameOverText15 = "Its fifteen!";
public static String gameWinText = "How did you..?";
public static String gameOverTip = "(press F2 for new game)";
public static String gamePausedText = "Game Paused";
public static String gamePausedTip = "(press P to unpause)";
public static Font largeFont = new Font ( "Comic Sans MS", Font.BOLD, 20 );
public static Font smallFont = new Font ( "Comic Sans MS", Font.BOLD, 12 );
public static Stroke borderStroke = new BasicStroke ( 0.5f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 1f, new float[]{ 4, 4 }, 0f );
@Override
protected void paintComponent ( final Graphics g )
{
super.paintComponent ( g );
final Graphics2D g2d = ( Graphics2D ) g;
final Object aa = GraphicsUtils.setupAntialias ( g2d );
g2d.setPaint ( Color.WHITE );
g2d.fillRect ( 0, 0, getWidth (), getHeight () );
final Stroke old = g2d.getStroke ();
g2d.setStroke ( borderStroke );
g2d.setPaint ( Color.LIGHT_GRAY );
for ( int i = 0; i <= BLOCKS_IN_WIDTH; i++ )
{
g2d.drawLine ( i * ( BLOCK_SIDE + 1 ), 0, i * ( BLOCK_SIDE + 1 ), getHeight () );
}
for ( int i = 0; i <= BLOCKS_IN_HEIGHT; i++ )
{
g2d.drawLine ( 0, i * ( BLOCK_SIDE + 1 ), getWidth (), i * ( BLOCK_SIDE + 1 ) );
}
g2d.setStroke ( old );
// g2d.setPaint ( Color.RED );
// g2d.draw ( getTerrainShape () );
for ( final Point point : terrain.keySet () )
{
final Block block = terrain.get ( point );
block.paintBlock ( g2d, new Rectangle ( point, new Dimension ( BLOCK_SIDE, BLOCK_SIDE ) ), block.getRotation () );
}
if ( currentFigure != null )
{
currentFigure.paintFigure ( g2d );
}
if ( gameOver || !gameRunning )
{
String gameOverText = "";
if ( gameOver )
{
if ( stage == 15 )
{
gameOverText = gameOverText15;
}
else if ( stage >= 12 )
{
gameOverText = gameOverText12;
}
else if ( stage >= 9 )
{
gameOverText = gameOverText9;
}
else if ( stage >= 6 )
{
gameOverText = gameOverText6;
}
else if ( stage >= 3 )
{
gameOverText = gameOverText3;
}
else if ( stage >= 1 )
{
gameOverText = gameOverText1;
}
}
g2d.setFont ( largeFont );
FontMetrics fm = g2d.getFontMetrics ();
final FontRenderContext frc = fm.getFontRenderContext ();
final GlyphVector gv = g2d.getFont ().createGlyphVector ( frc, gameOver ? gameOverText : gamePausedText );
final Rectangle bigTextBounds = gv.getVisualBounds ().getBounds ();
g2d.setFont ( smallFont );
fm = g2d.getFontMetrics ();
final int smallTextWidth = fm.stringWidth ( gameOver ? gameOverTip : gamePausedTip );
final int width = Math.max ( bigTextBounds.width, smallTextWidth );
final RoundRectangle2D rr = new RoundRectangle2D.Double ( getWidth () / 2 - width / 2 - 10,
getHeight () / 2 - bigTextBounds.height / 2 - smallFont.getSize () / 2 - 10, width + 20,
bigTextBounds.height + smallFont.getSize () + 20, 10, 10 );
final Rectangle bounds = rr.getBounds ();
g2d.setPaint ( new GradientPaint ( 0, bounds.y, bgTop, 0, bounds.y + bounds.height, bgBottom ) );
g2d.fill ( rr );
g2d.setPaint ( Color.GRAY );
g2d.draw ( rr );
g2d.setFont ( largeFont );
g2d.setPaint ( Color.BLACK );
g2d.drawString ( gameOver ? gameOverText : gamePausedText, getWidth () / 2 - bigTextBounds.width / 2,
getHeight () / 2 + bigTextBounds.height / 2 - smallFont.getSize () / 2 - 2 );
g2d.setFont ( smallFont );
g2d.setPaint ( Color.GRAY );
g2d.drawString ( gameOver ? gameOverTip : gamePausedTip, getWidth () / 2 - smallTextWidth / 2,
getHeight () / 2 + bigTextBounds.height / 2 + smallFont.getSize () / 2 + 2 );
}
GraphicsUtils.restoreAntialias ( g2d, aa );
}
public void addTickListener ( final TickListener tickListener )
{
tickListeners.add ( tickListener );
}
public void removeTickListener ( final TickListener tickListener )
{
tickListeners.remove ( tickListener );
}
private void fireTick ()
{
for ( final TickListener tickListener : CollectionUtils.copy ( tickListeners ) )
{
tickListener.tick ();
}
}
public void addTetrisListener ( final TetrisListener tetrisListener )
{
tetrisListeners.add ( tetrisListener );
}
public void removeTickListener ( final TetrisListener tetrisListener )
{
tetrisListeners.remove ( tetrisListener );
}
private void fireNewGameStarted ()
{
for ( final TetrisListener tetrisListener : CollectionUtils.copy ( tetrisListeners ) )
{
tetrisListener.newGameStarted ();
}
}
private void fireGamePaused ()
{
for ( final TetrisListener tetrisListener : CollectionUtils.copy ( tetrisListeners ) )
{
tetrisListener.gamePaused ();
}
}
private void fireGameUnpaused ()
{
for ( final TetrisListener tetrisListener : CollectionUtils.copy ( tetrisListeners ) )
{
tetrisListener.gameUnpaused ();
}
}
private void fireGameOver ()
{
for ( final TetrisListener tetrisListener : CollectionUtils.copy ( tetrisListeners ) )
{
tetrisListener.gameOver ();
}
}
public Figure getNextFigure ()
{
return figuresQueue.get ( 0 );
}
public int getScore ()
{
return score;
}
public int getStage ()
{
return stage;
}
public JComponent getNextFigureField ()
{
return nextFigureField;
}
}
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