private void emulateDrop(MouseEvent e) {
while (tileRack.remove(Tile.NONE)) ;
for (DragTarget target : dragTargets) {
if (target.rectangle.contains(e.x, e.y)) {
if (target.y == -1) {
int x = target.x;
Tile[] tiles = tileRack.getTiles();
if (x < tiles.length && !tiles[x].equals(Tile.NONE)) {
tileRack.add(x, Tile.NONE);
return;
}
}
}
}
}
private boolean beginDrag(MouseEvent e) {
if (drag != null) {
doDrop(e);
}
for (Rectangle rectangle : dragSources.keySet()) {
if (rectangle.contains(e.x, e.y)) {
drag = dragSources.get(rectangle);
if (drag.y == -1) {
tileRack.remove(drag.x);
} else {
placedTiles.remove(new Point(drag.x, drag.y));
}
emulateDrop(e);
return true;
}
}
return false;
}
private void doDrop(MouseEvent e) {
DragSource drag = this.drag;
this.drag = null;
if (drag == null) {
return;
}
while (tileRack.remove(Tile.NONE)) ;
for (DragTarget target : dragTargets) {
if (target.rectangle.contains(e.x, e.y)) {
if (target.y == -1) {
int x = target.x;
Tile[] tiles = tileRack.getTiles();
if (x < tiles.length && !tiles[x].equals(Tile.NONE)) {
tileRack.add(x, drag.tile);
pushRack();
return;
}
} else {
IBoard board = game.getBoard();
Tile current = board.getTile(target.y, target.x);
if (current.equals(Tile.NONE)) {
Point point = new Point(target.x, target.y);
if (!placedTiles.containsKey(point)) {
placedTiles.put(point, drag.tile);
updateMoveString();
return;
}
}
}
}
}
// return to source
if (drag.y == -1) {
tileRack.add(drag.tile);
pushRack();
} else {
placedTiles.put(new Point(drag.x, drag.y), drag.tile);
}
}
private void keyPressed(KeyEvent e) {
if (game == null) return;
if (game.getGameState() != GameState.IN_PROGRESS) return;
char c = Character.toLowerCase(e.character);
if (c >= 'a' && c <= 'z') {
// type letters on the board
if (arrow != null) {
IBoard board = game.getBoard();
if (arrow.x >= board.getWidth()) return;
if (arrow.y >= board.getHeight()) return;
Tile boardTile = game.getBoard().getTile(arrow.y, arrow.x);
if (!boardTile.equals(Tile.NONE)) {
if (c == boardTile.getLetter()) {
arrow.advance();
redraw();
}
return;
}
Tile tile = new Tile(c);
boolean wild = false;
if (!tileRack.contains(tile)) {
tile = new Tile('?');
if (!tileRack.contains(tile)) {
return;
}
wild = true;
}
tileRack.remove(tile);
tile = new Tile(c, wild);
placedTiles.put(new Point(arrow.x, arrow.y), tile);
arrow.advance();
}
updateMoveString();
redraw();
} else if (c == SWT.DEL || c == SWT.BS) {
// backspace a typed character on the board
if (placedTiles.size() > 0) {
arrow.backup();
Point point = new Point(arrow.x, arrow.y);
Tile tile = placedTiles.get(point);
if (tile != null) {
if (tile.isWild()) tile = new Tile('?');
tileRack.add(tile);
placedTiles.remove(point);
} else {
arrow.advance();
}
updateMoveString();
redraw();
}
} else if (c == '1') {
// toggle coordinates
showCoordinates = !showCoordinates;
redraw();
} else if (e.keyCode == SWT.ESC) {
// clear typed characters
resetInput(true);
redraw();
} else if (e.keyCode == SWT.CR || e.keyCode == SWT.KEYPAD_CR) {
// submit move on enter key
done.run();
} else if (c == ' ') {
getLocalTileRack().shuffle();
resetInput(true);
redraw();
}
}