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LookClose.java
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LookClose.java
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package net.citizensnpcs.trait;
import java.util.Random;
import org.bukkit.Bukkit;
import org.bukkit.GameMode;
import org.bukkit.Location;
import org.bukkit.entity.Entity;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Player;
import org.bukkit.metadata.MetadataValue;
import org.bukkit.potion.PotionEffectType;
import net.citizensnpcs.Settings.Setting;
import net.citizensnpcs.api.CitizensAPI;
import net.citizensnpcs.api.command.CommandConfigurable;
import net.citizensnpcs.api.command.CommandContext;
import net.citizensnpcs.api.event.NPCLookCloseChangeTargetEvent;
import net.citizensnpcs.api.persistence.Persist;
import net.citizensnpcs.api.trait.Trait;
import net.citizensnpcs.api.trait.TraitName;
import net.citizensnpcs.api.util.DataKey;
import net.citizensnpcs.util.NMS;
import net.citizensnpcs.util.Util;
/**
* Persists the /npc lookclose metadata
*
*/
@TraitName("lookclose")
public class LookClose extends Trait implements Toggleable, CommandConfigurable {
@Persist("enabled")
private boolean enabled = Setting.DEFAULT_LOOK_CLOSE.asBoolean();
@Persist
private boolean enableRandomLook = Setting.DEFAULT_RANDOM_LOOK_CLOSE.asBoolean();
private Player lookingAt;
@Persist
private int randomLookDelay = Setting.DEFAULT_RANDOM_LOOK_DELAY.asInt();
@Persist
private float[] randomPitchRange = { -10, 0 };
@Persist
private float[] randomYawRange = { 0, 360 };
private double range = Setting.DEFAULT_LOOK_CLOSE_RANGE.asDouble();
@Persist("realisticlooking")
private boolean realisticLooking = Setting.DEFAULT_REALISTIC_LOOKING.asBoolean();
private int t;
public LookClose() {
super("lookclose");
}
/**
* Returns whether the target can be seen. Will use realistic line of sight if {@link #setRealisticLooking(boolean)}
* is true.
*/
public boolean canSeeTarget() {
return realisticLooking && npc.getEntity() instanceof LivingEntity
? ((LivingEntity) npc.getEntity()).hasLineOfSight(lookingAt)
: lookingAt != null && lookingAt.isValid();
}
@Override
public void configure(CommandContext args) {
range = args.getFlagDouble("range", args.getFlagDouble("r", range));
realisticLooking = args.hasFlag('r');
}
/**
* Finds a new look-close target
*/
public void findNewTarget() {
double min = range * range;
Player old = lookingAt;
for (Entity entity : npc.getEntity().getNearbyEntities(range, range, range)) {
if (!(entity instanceof Player))
continue;
Player player = (Player) entity;
Location location = player.getLocation(CACHE_LOCATION);
if (location.getWorld() != NPC_LOCATION.getWorld())
continue;
double dist = location.distanceSquared(NPC_LOCATION);
if (dist > min || CitizensAPI.getNPCRegistry().getNPC(entity) != null || isInvisible(player))
continue;
min = dist;
lookingAt = player;
}
if (old != lookingAt) {
NPCLookCloseChangeTargetEvent event = new NPCLookCloseChangeTargetEvent(npc, old, lookingAt);
Bukkit.getPluginManager().callEvent(event);
lookingAt = event.getNewTarget();
}
}
public int getRandomLookDelay() {
return randomLookDelay;
}
public float[] getRandomLookPitchRange() {
return randomPitchRange;
}
public float[] getRandomLookYawRange() {
return randomYawRange;
}
public double getRange() {
return range;
}
public Player getTarget() {
return lookingAt;
}
private boolean tryInvalidateTarget() {
if (lookingAt == null)
return true;
if (!lookingAt.isOnline() || !lookingAt.isValid() || lookingAt.getWorld() != npc.getEntity().getWorld()
|| isInvisible(lookingAt)
|| lookingAt.getLocation(PLAYER_LOCATION).distanceSquared(NPC_LOCATION) > range * range) {
NPCLookCloseChangeTargetEvent event = new NPCLookCloseChangeTargetEvent(npc, lookingAt, null);
Bukkit.getPluginManager().callEvent(event);
lookingAt = event.getNewTarget();
}
return lookingAt == null;
}
private boolean isEqual(float[] array) {
return Math.abs(array[0] - array[1]) < 0.001;
}
private boolean isInvisible(Player player) {
return player.getGameMode() == GameMode.SPECTATOR || player.hasPotionEffect(PotionEffectType.INVISIBILITY)
|| isPluginVanished(player);
}
private boolean isPluginVanished(Player player) {
for (MetadataValue meta : player.getMetadata("vanished")) {
if (meta.asBoolean()) {
return true;
}
}
return false;
}
public boolean isRandomLook() {
return enableRandomLook;
}
@Override
public void load(DataKey key) {
range = key.getDouble("range");
}
/**
* Enables/disables the trait
*/
public void lookClose(boolean lookClose) {
enabled = lookClose;
}
@Override
public void onDespawn() {
NPCLookCloseChangeTargetEvent event = new NPCLookCloseChangeTargetEvent(npc, lookingAt, null);
Bukkit.getPluginManager().callEvent(event);
lookingAt = event.getNewTarget();
}
private void randomLook() {
Random rand = new Random();
float pitch = isEqual(randomPitchRange) ? randomPitchRange[0]
: rand.doubles(randomPitchRange[0], randomPitchRange[1]).iterator().next().floatValue();
float yaw = isEqual(randomYawRange) ? randomYawRange[0]
: rand.doubles(randomYawRange[0], randomYawRange[1]).iterator().next().floatValue();
Util.assumePose(npc.getEntity(), yaw, pitch);
}
@Override
public void run() {
if (!enabled || !npc.isSpawned()) {
return;
}
if (npc.getNavigator().isNavigating() && Setting.DISABLE_LOOKCLOSE_WHILE_NAVIGATING.asBoolean()) {
return;
}
npc.getEntity().getLocation(NPC_LOCATION);
if (tryInvalidateTarget()) {
findNewTarget();
}
if (npc.getNavigator().isNavigating()) {
npc.getNavigator().setPaused(lookingAt != null);
} else if (lookingAt == null && enableRandomLook && t <= 0) {
randomLook();
t = randomLookDelay;
}
t--;
if (lookingAt != null && canSeeTarget()) {
Util.faceEntity(npc.getEntity(), lookingAt);
if (npc.getEntity().getType().name().equals("SHULKER")) {
NMS.setPeekShulker(npc.getEntity(), 100 - (int) Math
.floor(npc.getStoredLocation().distanceSquared(lookingAt.getLocation(PLAYER_LOCATION))));
}
}
}
@Override
public void save(DataKey key) {
key.setDouble("range", range);
}
/**
* Enables random looking - will look at a random {@link Location} every so often if enabled.
*/
public void setRandomLook(boolean enableRandomLook) {
this.enableRandomLook = enableRandomLook;
}
/**
* Sets the delay between random looking in ticks
*/
public void setRandomLookDelay(int delay) {
this.randomLookDelay = delay;
}
public void setRandomLookPitchRange(float min, float max) {
this.randomPitchRange = new float[] { min, max };
}
public void setRandomLookYawRange(float min, float max) {
this.randomYawRange = new float[] { min, max };
}
/**
* Sets the maximum range in blocks to look at other Entities
*/
public void setRange(int range) {
this.range = range;
}
/**
* Enables/disables realistic looking (using line of sight checks). More computationally expensive.
*/
public void setRealisticLooking(boolean realistic) {
this.realisticLooking = realistic;
}
@Override
public boolean toggle() {
enabled = !enabled;
return enabled;
}
@Override
public String toString() {
return "LookClose{" + enabled + "}";
}
public boolean useRealisticLooking() {
return realisticLooking;
}
private static final Location CACHE_LOCATION = new Location(null, 0, 0, 0);
private static final Location CACHE_LOCATION2 = new Location(null, 0, 0, 0);
private static final Location NPC_LOCATION = new Location(null, 0, 0, 0);
private static final Location PLAYER_LOCATION = new Location(null, 0, 0, 0);
}