/** get enemies in current region */
public Set<Unit> getEnemies(GameState state) {
Unit ally = state.getUnit(getUnitID());
if (ally == null) {
return null;
}
Region region = state.getMap().getRegion(ally);
Set<Unit> enemies = state.getEnemyUnits(ally.getOwnerId(), region);
Iterator<Unit> itr = enemies.iterator();
while (itr.hasNext()) {
Unit enemy = itr.next();
if (enemy.isDead()) {
itr.remove();
}
}
return enemies;
}
public void assignTargets(Simulator sim, Set<Unit> enemies) {
GameState s = sim.getGameState();
Unit ally = s.getUnit(getUnitID());
Region region = sim.getState().getMap().getRegion(ally);
// divide damage equally among enemies.
//
final int M = enemies.size();
for (Unit enemy : enemies) {
String msg =
ally.getOwnerId()
+ ":"
+ ally.getUnitId()
+ " attacks "
+ enemy.getOwnerId()
+ ":"
+ enemy.getUnitId()
+ " "
+ enemy.getUnitTypeString()
+ " in region "
+ region.getId();
simlog.info(s.getCycle() + "\t" + msg);
int damage = Math.max(Math.round(Attack.getDamage(ally, enemy) / (float) M), 1);
if (damage > 0) {
sim.addChange(new AttributeDifference(enemy.getUnitId(), "hitPoints", -damage));
simlog.info(
s.getCycle()
+ "\t"
+ "damage -"
+ damage
+ " to enemy "
+ enemy.getOwnerId()
+ ":"
+ enemy.getUnitId()
+ " "
+ enemy.getUnitTypeString()
+ " in region "
+ region.getId());
}
}
}
@Override
public ActionStatus exec(Simulator sim) {
status = ActionStatus.ACTIVE;
GameState state = sim.getGameState();
Unit ally = state.getUnit(getUnitID());
assert ally != null : "no unit " + getUnitID() + " in game state.";
Set<Unit> enemies = getEnemies(state);
if (ally.isDead() || enemies.isEmpty() && isInTargetRegion(ally, state)) {
status = ActionStatus.COMPLETE;
return status;
}
if (!enemies.isEmpty()) {
assignTargets(sim, enemies);
} else {
moveToRegion(sim);
}
return status;
}
private boolean isInTargetRegion(Unit ally, GameState state) {
Region region = state.getMap().getRegion(getRegionId());
return region.contains(ally.getLocX(), ally.getLocY());
}