/** recursively renders a network of spaces */
protected void renderNetworkRecursive(
Graphics g, AbstractCollection<Tile> finished, Tile origin, int x, int y, Color hilight) {
int dummyHeight = 0;
if (x >= 0 && x < boardWidth && y >= 0 && y < boardHeight) {
dummyHeight = spaceHeights[x][y];
}
renderSpace(g, origin, dummyHeight, x, y);
g.setColor(hilight);
g.fillRect((x + 1) * TILE_WIDTH, (y + 1) * TILE_HEIGHT, TILE_WIDTH, TILE_HEIGHT);
if (x >= 0 && x < boardWidth && y >= 0 && y < boardHeight) {
renderText(
g,
Integer.toString(spaceHeights[x][y]),
(x + 1) * TILE_WIDTH,
(y + 1) * TILE_HEIGHT + g.getFont().getSize());
}
if (origin.getJoined(Grid.LEFT) != null && !finished.contains(origin.getJoined(Grid.LEFT))) {
finished.add(origin.getJoined(Grid.LEFT));
renderNetworkRecursive(g, finished, origin.getJoined(Grid.LEFT), x - 1, y, hilight);
}
if (origin.getJoined(Grid.RIGHT) != null && !finished.contains(origin.getJoined(Grid.RIGHT))) {
finished.add(origin.getJoined(Grid.RIGHT));
renderNetworkRecursive(g, finished, origin.getJoined(Grid.RIGHT), x + 1, y, hilight);
}
if (origin.getJoined(Grid.TOP) != null && !finished.contains(origin.getJoined(Grid.TOP))) {
finished.add(origin.getJoined(Grid.TOP));
renderNetworkRecursive(g, finished, origin.getJoined(Grid.TOP), x, y - 1, hilight);
}
if (origin.getJoined(Grid.BOTTOM) != null
&& !finished.contains(origin.getJoined(Grid.BOTTOM))) {
finished.add(origin.getJoined(Grid.BOTTOM));
renderNetworkRecursive(g, finished, origin.getJoined(Grid.BOTTOM), x, y + 1, hilight);
}
}
/**
* recursively renders the given space at it's given location, along with all of the spaces
* connected to it.
*/
public void renderNetwork(Tile origin, int x, int y, Color hilight) {
ArrayList<Tile> alreadyRendered = new ArrayList<Tile>();
renderNetworkRecursive(cachedGraphics, alreadyRendered, origin, x, y, hilight);
getParent().repaint();
}