/**
* Takes a table of nodes and adds a weighted score to each node score in the table. Nodes
* touching hexes with better numbers get better scores. Also numbers that the player isn't
* touching yet are better than ones that the player is already touching.
*
* @param nodes the table of nodes with scores: Hashtable<Integer,Integer> . Contents will
* be modified by the scoring.
* @param player the player that we are doing the rating for, or <tt>null</tt>; will give a bonus
* to numbers the player isn't already touching
* @param weight a number that is multiplied by the score
*/
protected void bestSpotForNumbers(
Hashtable<Integer, Integer> nodes, SOCPlayer player, int weight) {
final int[] numRating = SOCNumberProbabilities.INT_VALUES;
final SOCPlayerNumbers playerNumbers = (player != null) ? player.getNumbers() : null;
final SOCBoard board = game.getBoard();
// 80 is highest practical score (40 if player == null)
final int maxScore = (player != null) ? 80 : 40;
int oldScore;
Enumeration<Integer> nodesEnum = nodes.keys();
while (nodesEnum.hasMoreElements()) {
final Integer node = nodesEnum.nextElement();
// log.debug("BSN - looking at node "+Integer.toHexString(node.intValue()));
oldScore = nodes.get(node).intValue();
int score = 0;
Enumeration<Integer> hexesEnum = board.getAdjacentHexesToNode(node.intValue()).elements();
while (hexesEnum.hasMoreElements()) {
final int hex = hexesEnum.nextElement().intValue();
final int number = board.getNumberOnHexFromCoord(hex);
score += numRating[number];
if ((number != 0) && (playerNumbers != null) && !playerNumbers.hasNumber(number)) {
/** add a bonus for numbers that the player doesn't already have */
// log.debug("ADDING BONUS FOR NOT HAVING "+number);
score += numRating[number];
}
// log.debug(" -- -- Adding "+numRating[board.getNumberOnHexFromCoord(hex)]);
}
/*
* normalize score and multiply by weight
* 80 is highest practical score (40 if player == null)
* lowest score is 0
*/
final int nScore = ((score * 100) / maxScore) * weight;
final Integer finalScore = new Integer(nScore + oldScore);
nodes.put(node, finalScore);
// log.debug("BSN -- put node "+Integer.toHexString(node.intValue())+" with old score
// "+oldScore+" + new score "+nScore);
}
}
