/**
* Estimate the rarity of each resource, given this board's resource locations vs dice numbers.
* Useful for initial settlement placement and free-resource choice (when no other info
* available). This is based on the board and doesn't change when pieces are placed. Cached after
* the first call, as {@link #resourceEstimates}.
*
* <p>Calls each hex's {@link SOCBoard#getHexTypeFromCoord(int)}, ignores all hex types besides
* the usual {@link SOCBoard#CLAY_HEX} through {@link SOCBoard#WOOD_HEX} and {@link
* SOCBoardLarge#GOLD_HEX}.
*
* @return an array of rarity numbers, where estimates[SOCBoard.CLAY_HEX] == the clay rarity, as
* an integer percentage 0-100 of dice rolls.
*/
public int[] estimateResourceRarity() {
if (resourceEstimates == null) {
final SOCBoard board = game.getBoard();
final int[] numberWeights = SOCNumberProbabilities.INT_VALUES;
resourceEstimates = new int[SOCResourceConstants.UNKNOWN]; // uses 1 to 5 (CLAY to WOOD)
resourceEstimates[0] = 0;
// look at each hex
if (board.getBoardEncodingFormat() <= SOCBoard.BOARD_ENCODING_6PLAYER) {
// v1 or v2 encoding
final int L = board.getNumberLayout().length;
for (int i = 0; i < L; i++) {
final int hexNumber = board.getNumberOnHexFromNumber(i);
if (hexNumber > 0)
resourceEstimates[board.getHexTypeFromNumber(i)] += numberWeights[hexNumber];
}
} else {
// v3 encoding
final int[] hcoord = board.getLandHexCoords();
if (hcoord != null) {
final int L = hcoord.length;
for (int i = 0; i < L; i++) {
final int hexNumber = board.getNumberOnHexFromCoord(hcoord[i]);
if (hexNumber == 0) continue;
final int htype = board.getHexTypeFromCoord(hcoord[i]);
if (htype == SOCBoardLarge.GOLD_HEX) {
// Count gold as all resource types
for (int ht = SOCBoard.CLAY_HEX; ht <= SOCBoard.WOOD_HEX; ++ht)
resourceEstimates[ht] += numberWeights[hexNumber];
} else if ((htype >= 0) && (htype <= SOCBoard.WOOD_HEX)) {
resourceEstimates[htype] += numberWeights[hexNumber];
}
}
}
}
}
// D.ebugPrint("Resource Estimates = ");
// for (int i = 1; i < 6; i++)
// {
// D.ebugPrint(i+":"+resourceEstimates[i]+" ");
// }
// log.debug();
return resourceEstimates;
}
