void advance() {
do {
x += o.getDx();
y += o.getDy();
} while (!game.getBoard().getTile(y, x).equals(Tile.NONE)
|| placedTiles.get(new Point(x, y)) != null);
}
// create move based on placed tiles
private Move createMove() {
if (game == null) return null;
if (placedTiles.size() < 1) return null;
Point[] points = new Point[placedTiles.size()];
placedTiles.keySet().toArray(points);
IBoard board = game.getBoard();
boolean horizontal = true;
boolean vertical = true;
// vertical?
for (int i = 1; i < points.length; i++) {
Point point = points[i];
if (point.x != points[i - 1].x) {
vertical = false;
break;
}
}
// horizontal?
for (int i = 1; i < points.length; i++) {
Point point = points[i];
if (point.y != points[i - 1].y) {
horizontal = false;
break;
}
}
// scattered and invalid?
if (!horizontal && !vertical) {
return null;
}
// ambiguous?
if (horizontal && vertical) {
int x = points[0].x;
int y = points[0].y;
if (board.getTile(y, x - 1).equals(Tile.NONE) && board.getTile(y, x + 1).equals(Tile.NONE)) {
horizontal = false;
}
if (board.getTile(y - 1, x).equals(Tile.NONE) && board.getTile(y + 1, x).equals(Tile.NONE)) {
vertical = false;
}
// not adjacent to anything?
if (!horizontal && !vertical) {
return null;
}
// still ambiguous?
if (horizontal && vertical) {
// just pick one
horizontal = false;
}
}
Orientation orientation = vertical ? Orientation.VERTICAL : Orientation.HORIZONTAL;
int dx = orientation.getDx();
int dy = orientation.getDy();
// find first placed tile
int x = points[0].x;
int y = points[0].y;
for (int i = 1; i < points.length; i++) {
Point point = points[i];
if (point.x < x) x = point.x;
if (point.y < y) y = point.y;
}
// traverse on-board tiles backwards
while (!board.getTile(y - dy, x - dx).equals(Tile.NONE)) {
x -= dx;
y -= dy;
}
int row = y;
int column = x;
// build word
StringBuffer b = new StringBuffer();
while (true) {
Point point = new Point(x, y);
Tile tile = board.getTile(y, x);
if (tile == null || tile.equals(Tile.NONE)) {
tile = placedTiles.get(point);
}
if (tile == null || tile.equals(Tile.NONE)) {
break;
}
b.append(tile);
x += dx;
y += dy;
}
Move move = new Move();
move.setColumn(column);
move.setRow(row);
move.setOrientation(orientation);
move.setWord(Convert.toTiles(b.toString()));
return move;
}
void backup() {
do {
x -= o.getDx();
y -= o.getDy();
} while (!game.getBoard().getTile(y, x).equals(Tile.NONE));
}
private void drawTile(IBoard b, GC gc, int x, int y, int xo, int yo, int size) {
gc.setClipping(xo, yo, size + 1, size + 1);
Color c = background;
if (b.getLetterMultiplier(y, x) == 2) c = doubleLetter;
else if (b.getLetterMultiplier(y, x) == 3) c = tripleLetter;
else if (b.getLetterMultiplier(y, x) == 4) c = quadLetter;
else if (b.getWordMultiplier(y, x) == 2) c = doubleWord;
else if (b.getWordMultiplier(y, x) == 3) c = tripleWord;
else if (b.getWordMultiplier(y, x) == 4) c = quadWord;
gc.setBackground(c);
gc.fillRectangle(xo, yo, size, size);
c = light;
if (b.getLetterMultiplier(y, x) == 2) c = doubleLetterLight;
else if (b.getLetterMultiplier(y, x) == 3) c = tripleLetterLight;
else if (b.getLetterMultiplier(y, x) == 4) c = quadLetterLight;
else if (b.getWordMultiplier(y, x) == 2) c = doubleWordLight;
else if (b.getWordMultiplier(y, x) == 3) c = tripleWordLight;
else if (b.getWordMultiplier(y, x) == 4) c = quadWordLight;
gc.setForeground(c);
gc.drawLine(xo, yo, xo + size, yo);
gc.drawLine(xo, yo, xo, yo + size);
gc.setForeground(dark);
gc.drawLine(xo + size, yo + size, xo + size, yo);
gc.drawLine(xo + size, yo + size, xo, yo + size);
Tile tile = b.getTile(y, x);
if (tile.equals(Tile.NONE)) {
for (Iterator i = placedTiles.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry) i.next();
Point point = (Point) entry.getKey();
if (point.x == x && point.y == y) {
tile = (Tile) entry.getValue();
DragSource source = new DragSource();
source.rectangle = new Rectangle(xo, yo, size + 1, size + 1);
source.x = x;
source.y = y;
source.tile = tile;
dragSources.put(source.rectangle, source);
}
}
}
boolean highlight = false;
IGameAction action = game.getLastAction();
if (action != null && action instanceof MoveAction) {
MoveAction moveAction = (MoveAction) action;
MoveResult result = moveAction.getMoveResult();
Tile[] tiles = result.getPreviousBoardState();
Move move = result.getMove();
Orientation orientation = move.getOrientation();
int dx = orientation.getDx();
int dy = orientation.getDy();
int mx = move.getColumn();
int my = move.getRow();
for (int i = 0; i < tiles.length; i++) {
Tile t = tiles[i];
if (mx == x && my == y && t.equals(Tile.NONE)) {
highlight = true;
}
mx += dx;
my += dy;
}
}
drawTile(gc, new Rectangle(xo, yo, size + 1, size + 1), tile, highlight);
if (arrow != null && arrow.x == x && arrow.y == y) {
drawArrow(gc, xo, yo, size);
}
}