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43 लाइनें
public class HomingTask extends BukkitRunnable {
public class ChasingTask extends BukkitRunnable {
private static final double MaxRotationAngle = 0.12;
private static final double TargetSpeed = 1.4;
Arrow arrow;
Arrow arrow;
LivingEntity target;
LivingEntity target;
public HomingTask(final Arrow arrow, final LivingEntity target, final Plugin plugin) {
public ChasingTask(final Arrow arrow, final LivingEntity target, final ChasingArrows plugin) {
super();
super();
this.arrow = arrow;
this.arrow = arrow;
this.target = target;
this.target = target;
this.runTaskTimer(plugin, 1L, 1L);
this.runTaskTimer((Plugin)plugin, 1L, 1L);
}
}
public void run() {
public void run() {
final double speed = this.arrow.getVelocity().length();
final double speed = this.arrow.getVelocity().length();
if (this.arrow.isOnGround() || this.arrow.isDead() || this.target.isDead()) {
if (this.arrow.isOnGround() || this.arrow.isDead() || this.target.isDead()) {
this.cancel();
this.cancel();
return;
return;
}
}
final Vector toTarget = this.target.getLocation().clone().add(new Vector(0.0, 0.5, 0.0)).subtract(this.arrow.getLocation()).toVector();
final Vector toTarget = this.target.getLocation().clone().add(new Vector(0.0, 0.5, 0.0)).subtract(this.arrow.getLocation()).toVector();
final Vector dirVelocity = this.arrow.getVelocity().clone().normalize();
final Vector dirVelocity = this.arrow.getVelocity().clone().normalize();
final Vector dirToTarget = toTarget.clone().normalize();
final Vector dirToTarget = toTarget.clone().normalize();
final double angle = dirVelocity.angle(dirToTarget);
final double angle = dirVelocity.angle(dirToTarget);
double newSpeed = 0.9 * speed + 0.13999999999999999;
double newSpeed = 0.9 * speed + 0.14;
if (this.target instanceof Player && this.arrow.getLocation().distance(this.target.getLocation()) < 8.0) {
if (this.target instanceof Player && this.arrow.getLocation().distance(this.target.getLocation()) < 8.0) {
final Player player = (Player)this.target;
final Player player = (Player)this.target;
if (player.isBlocking()) {
if (player.isBlocking()) {
newSpeed = speed * 0.6;
newSpeed = speed * 0.6;
}
}
}
}
Vector newVelocity;
Vector newVelocity;
if (angle < 0.12) {
if (angle < 0.12) {
newVelocity = dirVelocity.clone().multiply(newSpeed);
newVelocity = dirVelocity.clone().multiply(newSpeed);
}
}
else {
else {
final Vector newDir = dirVelocity.clone().multiply((angle - 0.12) / angle).add(dirToTarget.clone().multiply(0.12 / angle));
final Vector newDir = dirVelocity.clone().multiply((angle - 0.12) / angle).add(dirToTarget.clone().multiply(0.12 / angle));
newDir.normalize();
newDir.normalize();
newVelocity = newDir.clone().multiply(newSpeed);
newVelocity = newDir.clone().multiply(newSpeed);
}
}
this.arrow.setVelocity(newVelocity.add(new Vector(0.0, 0.03, 0.0)));
this.arrow.setVelocity(newVelocity.add(new Vector(0.0, 0.03, 0.0)));
this.arrow.getWorld().playEffect(this.arrow.getLocation(), Effect.SMOKE, 0);
}
}
}
}