public double mutate(int nDeleMutation, int nBeneMutation) {
double fitnessEffect = 1;
for (int i = 0; i < nDeleMutation; i++) {
double u = Rand.getFloat();
fitnessEffect *=
1 - ((-ModelParameters.getFloat("DEFAULT_DELETERIOUS_EFFECT")) * Math.log(1 - u));
}
for (int j = 0; j < nBeneMutation; j++) {
double u = Rand.getFloat();
fitnessEffect *=
1 + ((-ModelParameters.getFloat("DEFAULT_BENEFICIAL_EFFECT")) * Math.log(1 - u));
}
return (fitnessEffect);
}
private void beneficialMutate(int currentGeneration, ArrayList mutationProperties) {
double mutationRate =
ModelParameters.getDouble("BASE_BENEFICIAL_MUTATION_RATE") * getMutatorStrength();
// Poisson poisson = new Poisson(mutationRate, Rand.getEngine());
// int poissonObs = poisson.nextInt();
int poissonObs = Util.getPoisson(mutationRate);
for (int nMutation = 0; nMutation < poissonObs; nMutation++) {
double u = Rand.getFloat();
double fitnessEffect =
1 + ((-ModelParameters.getFloat("DEFAULT_BENEFICIAL_EFFECT")) * Math.log(1 - u));
updateMutationInformation(currentGeneration, mutationProperties, fitnessEffect);
}
}
public void spawnNearPlaceable() {
float prob, rand;
Placeable placeable = registry.getPlaceableManager().getRandomPlacable();
if (placeable != null
&& !placeable.getType().equals("TownHall")
&& !placeable.getType().equals("Cabin")
&& !placeable.getType().equals("Chest")) {
Point p = placeable.getCenterPoint();
HashMap<String, Player> players = registry.getPlayerManager().getPlayers();
Player player = null;
boolean playerNear = false;
for (String key : players.keySet()) {
player = (Player) players.get(key);
Point p2 = new Point(player.getMapX(), player.getMapY());
if (p.distance(p2) < mobSpawnRangeMin * 2) {
playerNear = true;
}
}
if (!playerNear) {
for (MonsterType monsterType : MonsterType.values()) {
if (monsterType.toString().equals("Porcupine")
|| monsterType.toString().equals("Snail")
|| monsterType.toString().equals("Snake")
|| monsterType.toString().equals("ZombieWalrus")) {
rand = Rand.getFloat();
prob = getShouldSpawn(monsterType, 0);
if (rand <= prob / 3.0f) {
// System.out.println("spawn near placeable " + monsterType.name());
spawn(monsterType.name(), "Roaming", p.x, p.y);
}
}
}
}
}
}
public void spawnNearPlayers() {
Monster monster = null;
float prob, rand;
int count;
HashMap<String, Player> players = registry.getPlayerManager().getPlayers();
Player player = null;
Integer spawnCoolDown = null;
for (String key : players.keySet()) {
player = (Player) players.get(key);
// check for spawning Melvin
if (registry.currentTime >= nextBossOrcSpawn && nextBossOrcSpawn != 0) {
// to spawn melvin, player must have 40 AP, be within a range on the map and be on the
// surface
if (player.getMapX() >= 2000
&& player.getMapX() <= 5000
&& player.getLevel() >= 10
&& player.getMapY() == this.findFloor(player.getMapX())) {
spawnBossOrc(player);
}
}
if (spawnCoolDowns.containsKey(key)) {
spawnCoolDown = spawnCoolDowns.get(key);
} else {
spawnCoolDown = new Integer(0);
spawnCoolDowns.put(key, spawnCoolDown);
}
spawnCoolDown--;
if (spawnCoolDown < 0) {
int x = player.getMapX();
int y = player.getMapY();
int groundLevel = registry.getBlockManager().getLevelByY(y);
count = -groundLevel;
try {
for (String key2 : monsters.keySet()) {
monster = (Monster) monsters.get(key2);
if (monster.getCenterPoint().distance(player.getCenterPoint())
< MonsterManager.mobSpawnRangeMax * 3 / 2) {
if (monster.getTouchDamage() > 0
&& !monster.getName().equals("BlueThorn")
&& !monster.getName().equals("VineThorn")) {
count++;
}
}
}
} catch (ConcurrentModificationException concEx) {
// another thread was trying to modify monsters while iterating
// we'll continue and the new item can be grabbed on the next update
}
if (count < 4) {
for (MonsterType monsterType : MonsterType.values()) {
if (count < 4) {
rand = Rand.getFloat();
prob = getShouldSpawn(monsterType, groundLevel);
if (prob > 0.0f) {
if ((prob - count * spawnRatioDiff) > 0.005f) {
prob += -count * spawnRatioDiff;
} else {
prob = 0.005f;
}
}
if (rand <= prob) {
// System.out.println("spawn near player " + monsterType.name());
spawn(monsterType.name(), "Roaming", x, y);
count++;
}
}
}
} else {
// EIError.debugMsg("too many to spawn");
spawnCoolDown = 20;
}
}
}
}
