/**
* Returns changes in region strengths for each possible move.
*
* @param region
* @return
*/
protected static Map<Neighbor, Float> checkMoves(Region region) {
Map<Neighbor, Float> result = new HashMap<Neighbor, Float>();
for (Neighbor neighbor : region.neighbors) {
// check if neighbor can be moved to
if (RegionUtils.canMove(region, neighbor)) {
// get current strengths of region, neighbor
float regionStrength = RegionUtils.getRegionBattleStrength(region);
float neighborStrength = RegionUtils.getRegionBattleStrength(neighbor.region);
// swap units, see change in strengths
Unit tempUnit = region.unit;
region.unit = neighbor.region.unit;
neighbor.region.unit = tempUnit;
Player tempPlayer = region.player;
region.player = neighbor.region.player;
neighbor.region.player = tempPlayer;
float regionMoveStrength = RegionUtils.getRegionBattleStrength(region);
float neighborMoveStrength = RegionUtils.getRegionBattleStrength(neighbor.region);
// put units back
tempUnit = region.unit;
region.unit = neighbor.region.unit;
neighbor.region.unit = tempUnit;
tempPlayer = region.player;
region.player = neighbor.region.player;
neighbor.region.player = tempPlayer;
result.put(
neighbor,
regionMoveStrength + neighborMoveStrength - regionStrength - neighborStrength);
}
}
return result;
}
/**
* Returns collection of moves for given score factor, ordered by descending score.
*
* @param overworld
* @param player
* @param scoreThreshold
* @param scoreFactor
* @return
*/
protected static Collection<Move> getMoves(
Overworld overworld,
Player player,
ScoreFactor scoreThreshold,
ScoreFactor captureScoreThreshold,
ScoreFactor scoreFactor) {
Map<Float, Move> moves = new TreeMap<Float, Move>();
// go through each region
for (Region region : overworld.regions) {
if (region.player.equals(player) && region.unit != null && region.unit.hasMove) {
// go through each neighbor
for (Neighbor neighbor : region.neighbors) {
if (RegionUtils.canMove(region, neighbor)) {
ScoreFactor score = new ScoreFactor();
float scoreValue = 0;
boolean aboveThreshold = true;
// get each score type
for (ScoreFactor.Type type : ScoreFactor.Type.values()) {
if (scoreThreshold.usesType(type) || scoreFactor.usesType(type)) {
switch (type) {
case BATTLE_STRENGTH_CHANGE:
score.addFactor(type, getBattleStrengthChange(region, neighbor, true));
break;
case ISLAND_PERCENTAGE:
score.addFactor(type, RegionUtils.getIslandPercentage(region.island, player));
break;
case ISLAND_STRENGTH:
score.addFactor(type, RegionUtils.getIslandStrength(region.island, player));
break;
case RANDOM:
score.addFactor(type, Utils.random().nextFloat());
break;
case BATTLE_LIKELIHOOD:
case ISLAND_STRENGTH_CHANGE:
// ignore
break;
}
// check if score meets threshold
// capture threshold
if (!neighbor.region.player.equals(region.player) && neighbor.region.unit == null) {
if (captureScoreThreshold.usesType(type)) {
aboveThreshold &= score.getScore(type) >= captureScoreThreshold.getScore(type);
}
}
// regular move threshold
else {
if (scoreThreshold.usesType(type)) {
aboveThreshold &= score.getScore(type) >= scoreThreshold.getScore(type);
}
}
// update score value
if (scoreFactor.usesType(type)) {
scoreValue += score.getScore(type) * scoreFactor.getScore(type);
}
}
}
// score above threshold
if (aboveThreshold) {
moves.put(scoreValue, new Move(Move.Type.MOVE, region, neighbor.region));
System.out.println(
String.format("\tpossible move %f: %s", scoreValue, moves.get(scoreValue)));
System.out.println("\t\t" + score);
}
}
}
}
}
return moves.values();
}
