/
FlyCommand.java
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/
FlyCommand.java
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package net.aufdemrand.denizen.scripts.commands.entity;
import java.util.ArrayList;
import java.util.List;
import net.aufdemrand.denizen.exceptions.CommandExecutionException;
import net.aufdemrand.denizen.exceptions.InvalidArgumentsException;
import net.aufdemrand.denizen.objects.Element;
import net.aufdemrand.denizen.objects.aH;
import net.aufdemrand.denizen.objects.dEntity;
import net.aufdemrand.denizen.objects.dList;
import net.aufdemrand.denizen.objects.dLocation;
import net.aufdemrand.denizen.scripts.ScriptEntry;
import net.aufdemrand.denizen.scripts.commands.AbstractCommand;
import net.aufdemrand.denizen.utilities.Conversion;
import net.aufdemrand.denizen.utilities.debugging.dB;
import net.aufdemrand.denizen.utilities.debugging.dB.Messages;
import net.aufdemrand.denizen.utilities.entity.Position;
import net.aufdemrand.denizen.utilities.entity.Rotation;
import org.bukkit.Location;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.scheduler.BukkitRunnable;
import org.bukkit.util.Vector;
/**
* Fly on top of an entity in the direction you are looking, unless
* a list of locations is specified, in which case the entity flies
* towards them.
*
* @author David Cernat
*/
public class FlyCommand extends AbstractCommand {
@Override
public void parseArgs(ScriptEntry scriptEntry) throws InvalidArgumentsException {
// Initialize necessary fields
for (aH.Argument arg : aH.interpret(scriptEntry.getArguments())) {
if (!scriptEntry.hasObject("cancel")
&& arg.matches("cancel")) {
scriptEntry.addObject("cancel", "");
}
else if (!scriptEntry.hasObject("destinations")
&& arg.matchesPrefix("destination, destinations, d")) {
// Entity arg
scriptEntry.addObject("destinations", ((dList) arg.asType(dList.class)).filter(dLocation.class));
}
else if (!scriptEntry.hasObject("origin")
&& arg.matchesArgumentType(dLocation.class)) {
// Location arg
scriptEntry.addObject("origin", arg.asType(dLocation.class).setPrefix("origin"));
}
else if (!scriptEntry.hasObject("entities")
&& arg.matchesPrefix("entity, entities, e")) {
// Entity arg
scriptEntry.addObject("entities", ((dList) arg.asType(dList.class)).filter(dEntity.class));
}
else if (!scriptEntry.hasObject("speed")
&& arg.matchesPrimitive(aH.PrimitiveType.Double)) {
// Add value
scriptEntry.addObject("speed", arg.asElement());
}
}
// Use the NPC or player's locations as the location if one is not specified
scriptEntry.defaultObject("origin",
scriptEntry.hasPlayer() ? scriptEntry.getPlayer().getLocation() : null,
scriptEntry.hasNPC() ? scriptEntry.getNPC().getLocation() : null);
// Use a default speed of 1.2 if one is not specified
scriptEntry.defaultObject("speed", new Element(1.2));
// Check to make sure required arguments have been filled
if ((!scriptEntry.hasObject("entities")))
throw new InvalidArgumentsException(Messages.ERROR_MISSING_OTHER, "ENTITIES");
if ((!scriptEntry.hasObject("origin")))
throw new InvalidArgumentsException(Messages.ERROR_MISSING_OTHER, "ORIGIN");
}
@SuppressWarnings("unchecked")
@Override
public void execute(final ScriptEntry scriptEntry) throws CommandExecutionException {
// Get objects
dLocation origin = (dLocation) scriptEntry.getObject("origin");
List<dEntity> entities = (List<dEntity>) scriptEntry.getObject("entities");
final List<dLocation> destinations = scriptEntry.hasObject("destinations") ?
(List<dLocation>) scriptEntry.getObject("destinations") :
new ArrayList<dLocation>();
final Element speed = (Element) scriptEntry.getObject("speed");
Boolean cancel = scriptEntry.hasObject("cancel") ?
true :
false;
// Report to dB
dB.report(getName(), (cancel == true ? aH.debugObj("cancel", cancel) : "") +
aH.debugObj("origin", origin) +
aH.debugObj("entities", entities.toString()) +
aH.debugObj("speed", speed) +
(destinations.size() > 0 ? aH.debugObj("destinations", destinations.toString()) : ""));
// Mount or dismount all of the entities
if (cancel.equals(false)) {
// Go through all the entities, spawning/teleporting them
for (dEntity entity : entities) {
if (entity.isSpawned() == false) {
entity.spawnAt(origin);
}
else {
entity.teleport(origin);
}
}
Position.mount(Conversion.convert(entities));
}
else {
Position.dismount(Conversion.convert(entities));
// Go no further if we are dismounting entities
return;
}
// Get the last entity on the list
final Entity entity = entities.get(entities.size() - 1).getBukkitEntity();
// Get the attached player
final Player player = scriptEntry.getPlayer().getPlayerEntity();
// Set freeflight to true only if there are no destinations
final Boolean freeflight = destinations.size() > 0 ? false : true;
BukkitRunnable task = new BukkitRunnable() {
Location location = null;
Boolean flying = true;
public void run() {
if (freeflight == true) {
location = player.getEyeLocation().add(
player.getEyeLocation().getDirection().
multiply(30));
}
else {
// If freelight is not on, keep flying only as long
// as there are destinations left
if (destinations.size() > 0) {
location = destinations.get(0);
}
else {
flying = false;
}
}
if (flying == true &&
entity.isValid() == true &&
entity.isEmpty() == false) {
// To avoid excessive turbulence, only have the entity rotate
// when it really needs to
if (Rotation.isFacingLocation(entity, location, 50) == false) {
Rotation.faceLocation(entity, location);
}
Vector v1 = entity.getLocation().toVector();
Vector v2 = location.toVector();
Vector v3 = v2.clone().subtract(v1).normalize().multiply(speed.asDouble());
entity.setVelocity(v3);
// If freeflight is off, check if the entity has reached its
// destination, and remove the destination if that happens
// to be the case
if (freeflight == false) {
if (Math.abs(v2.getX() - v1.getX()) < 2 && Math.abs(v2.getY() - v1.getY()) < 2
&& Math.abs(v2.getZ() - v1.getZ()) < 2) {
destinations.remove(0);
}
}
}
else {
flying = false;
this.cancel();
}
}
};
task.runTaskTimer(denizen, 0, 3);
}
}