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Controllable.java
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Controllable.java
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package net.citizensnpcs.trait;
import java.util.List;
import org.bukkit.Location;
import org.bukkit.entity.EnderDragon;
import org.bukkit.entity.Entity;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Player;
import org.bukkit.entity.Vehicle;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.util.Vector;
import net.citizensnpcs.Settings.Setting;
import net.citizensnpcs.api.event.NPCRightClickEvent;
import net.citizensnpcs.api.npc.NPC;
import net.citizensnpcs.api.persistence.Persist;
import net.citizensnpcs.api.trait.Trait;
import net.citizensnpcs.api.trait.TraitName;
import net.citizensnpcs.api.trait.trait.Owner;
import net.citizensnpcs.util.NMS;
import net.citizensnpcs.util.Util;
/**
* Persists the controllable status for /npc controllable
*
* A controllable {@link NPC} can be mounted by a {@link Player} using right click or /npc mount and moved around using
* e.g. arrow keys.
*/
@TraitName("controllable")
public class Controllable extends Trait implements Toggleable {
private MovementController controller = new GroundController();
@Persist
private BuiltInControls controls;
@Persist
private boolean enabled = true;
@Persist("owner_required")
private boolean ownerRequired;
public Controllable() {
super("controllable");
}
private void enterOrLeaveVehicle(Player player) {
List<Entity> passengers = NMS.getPassengers(player);
if (passengers.size() > 0) {
if (passengers.contains(player)) {
player.leaveVehicle();
}
return;
}
if (!player.hasPermission(
"citizens.npc.controllable." + npc.getEntity().getType().name().toLowerCase().replace("_", ""))
|| !player.hasPermission("citizens.npc.controllable")
|| ownerRequired && !npc.getOrAddTrait(Owner.class).isOwnedBy(player))
return;
NMS.mount(npc.getEntity(), player);
}
public boolean isEnabled() {
return enabled;
}
private void loadController() {
if (controls != null) {
controller = controls.create(this);
return;
}
if (!(npc.getEntity() instanceof LivingEntity) && !(npc.getEntity() instanceof Vehicle)) {
controller = new LookAirController();
return;
}
if (Util.isAlwaysFlyable(npc.getEntity().getType())) {
controller = new PlayerInputAirController();
} else {
controller = new GroundController();
}
}
/**
* Attempts to mount the {@link Player} onto the {@link NPC}.
*
* @param toMount
* the player to mount
* @return whether the mount was successful
*/
public boolean mount(Player toMount) {
List<Entity> passengers = NMS.getPassengers(npc.getEntity());
if (passengers.size() != 0)
return false;
boolean found = false;
for (Entity passenger : passengers) {
if (passenger != null && passenger == toMount) {
found = true;
break;
}
}
if (found)
return false;
enterOrLeaveVehicle(toMount);
return true;
}
@EventHandler(priority = EventPriority.MONITOR)
private void onPlayerInteract(PlayerInteractEvent event) {
if (!npc.isSpawned() || !enabled)
return;
Action performed = event.getAction();
if (!NMS.getPassengers(npc.getEntity()).contains(event.getPlayer()))
return;
switch (performed) {
case RIGHT_CLICK_BLOCK:
if (event.isCancelled())
return;
case RIGHT_CLICK_AIR:
controller.rightClick(event);
break;
case LEFT_CLICK_BLOCK:
if (event.isCancelled())
return;
case LEFT_CLICK_AIR:
controller.leftClick(event);
break;
default:
break;
}
}
@EventHandler
private void onRightClick(NPCRightClickEvent event) {
if (!enabled || !npc.isSpawned() || !event.getNPC().equals(npc))
return;
controller.rightClickEntity(event);
event.setDelayedCancellation(true);
}
@Override
public void onSpawn() {
loadController();
}
@Override
public void run() {
if (!enabled || !npc.isSpawned())
return;
List<Entity> passengers = NMS.getPassengers(npc.getEntity());
if (passengers.size() == 0 || !(passengers.get(0) instanceof Player) || npc.getNavigator().isNavigating())
return;
controller.run((Player) passengers.get(0));
}
public void setControls(BuiltInControls controls) {
this.controls = controls;
}
public boolean setEnabled(boolean enabled) {
this.enabled = enabled;
return enabled;
}
private void setMountedYaw(Entity entity) {
if (entity instanceof EnderDragon || !Setting.USE_BOAT_CONTROLS.asBoolean())
return; // EnderDragon handles this separately
Location loc = entity.getLocation();
Vector vel = entity.getVelocity();
if (vel.lengthSquared() == 0)
return;
double tX = loc.getX() + vel.getX();
double tZ = loc.getZ() + vel.getZ();
if (loc.getZ() > tZ) {
loc.setYaw((float) -Math.toDegrees(Math.atan((loc.getX() - tX) / (loc.getZ() - tZ))) + 180F);
} else if (loc.getZ() < tZ) {
loc.setYaw((float) -Math.toDegrees(Math.atan((loc.getX() - tX) / (loc.getZ() - tZ))));
}
NMS.look(entity, loc.getYaw(), loc.getPitch());
}
/**
* Sets whether the {@link Player} attempting to mount the {@link NPC} must actually own the {@link NPC} to mount
* it.
*
* @see Owner#isOwnedBy(org.bukkit.command.CommandSender)
*/
public void setOwnerRequired(boolean ownerRequired) {
this.ownerRequired = ownerRequired;
}
@Override
public boolean toggle() {
enabled = !enabled;
if (!enabled && NMS.getPassengers(npc.getEntity()).size() > 0) {
NMS.getPassengers(npc.getEntity()).get(0).leaveVehicle();
}
return enabled;
}
private double updateHorizontalSpeed(Entity handle, Entity passenger, double speed, float speedMod,
double maxSpeed) {
Vector vel = handle.getVelocity();
double oldSpeed = Math.sqrt(vel.getX() * vel.getX() + vel.getZ() * vel.getZ());
double horizontal = NMS.getHorizontalMovement(passenger);
if (Math.abs(Math.abs(horizontal) - 0.98) > 0.02)
return speed;
double yaw = passenger.getLocation().getYaw();
if (horizontal > 0.0D) {
double dXcos = -Math.sin(yaw * Math.PI / 180.0F);
double dXsin = Math.cos(yaw * Math.PI / 180.0F);
vel = vel.setX(dXcos * speed * speedMod).setZ(dXsin * speed * speedMod);
}
vel = vel.add(new Vector(
passenger.getVelocity().getX() * speedMod * Setting.CONTROLLABLE_GROUND_DIRECTION_MODIFIER.asDouble(),
0D,
passenger.getVelocity().getZ() * speedMod * Setting.CONTROLLABLE_GROUND_DIRECTION_MODIFIER.asDouble()))
.multiply(0.98);
double newSpeed = Math.sqrt(vel.getX() * vel.getX() + vel.getZ() * vel.getZ());
if (newSpeed > maxSpeed) {
vel = vel.multiply(new Vector(maxSpeed / newSpeed, 1, maxSpeed / newSpeed));
newSpeed = maxSpeed;
}
handle.setVelocity(vel);
if (newSpeed > oldSpeed && speed < maxSpeed) {
return (float) Math.min(maxSpeed, speed + (maxSpeed - speed) / 50.0D);
} else {
return (float) Math.max(0, speed - speed / 50.0D);
}
}
public enum BuiltInControls {
AIR {
@Override
MovementController create(Controllable trait) {
return trait.new PlayerInputAirController();
}
},
GROUND {
@Override
MovementController create(Controllable trait) {
return trait.new GroundController();
}
},
GROUND_JUMPLESS {
@Override
MovementController create(Controllable trait) {
return trait.new JumplessGroundController();
}
},
LOOK_AIR {
@Override
MovementController create(Controllable trait) {
return trait.new LookAirController();
}
};
abstract MovementController create(Controllable trait);
}
public class GroundController implements MovementController {
private int jumpTicks = 0;
private double speed = 0.07D;
@Override
public void leftClick(PlayerInteractEvent event) {
}
@Override
public void rightClick(PlayerInteractEvent event) {
}
@Override
public void rightClickEntity(NPCRightClickEvent event) {
enterOrLeaveVehicle(event.getClicker());
}
@Override
public void run(Player rider) {
boolean onGround = NMS.isOnGround(npc.getEntity());
float impulse = npc.getNavigator().getDefaultParameters()
.modifiedSpeed(onGround ? GROUND_SPEED : AIR_SPEED);
if (!Util.isHorse(npc.getEntity().getType())) {
speed = updateHorizontalSpeed(npc.getEntity(), rider, speed, impulse,
Setting.MAX_CONTROLLABLE_GROUND_SPEED.asDouble());
}
if (onGround && jumpTicks <= 0 && NMS.shouldJump(rider)) {
npc.getEntity().setVelocity(npc.getEntity().getVelocity().setY(JUMP_VELOCITY));
jumpTicks = 10;
}
jumpTicks--;
setMountedYaw(npc.getEntity());
}
private static final float AIR_SPEED = 0.5F;
private static final float GROUND_SPEED = 0.5F;
private static final float JUMP_VELOCITY = 0.5F;
}
public class JumplessGroundController implements MovementController {
private double speed = 0.07D;
@Override
public void leftClick(PlayerInteractEvent event) {
}
@Override
public void rightClick(PlayerInteractEvent event) {
}
@Override
public void rightClickEntity(NPCRightClickEvent event) {
enterOrLeaveVehicle(event.getClicker());
}
@Override
public void run(Player rider) {
boolean onGround = NMS.isOnGround(npc.getEntity());
float impulse = npc.getNavigator().getDefaultParameters()
.modifiedSpeed(onGround ? GROUND_SPEED : AIR_SPEED);
if (!Util.isHorse(npc.getEntity().getType())) {
speed = updateHorizontalSpeed(npc.getEntity(), rider, speed, impulse,
Setting.MAX_CONTROLLABLE_GROUND_SPEED.asDouble());
}
setMountedYaw(npc.getEntity());
}
private static final float AIR_SPEED = 0.5F;
private static final float GROUND_SPEED = 0.5F;
}
public class LookAirController implements MovementController {
private boolean paused = false;
@Override
public void leftClick(PlayerInteractEvent event) {
paused = !paused;
}
@Override
public void rightClick(PlayerInteractEvent event) {
paused = !paused;
}
@Override
public void rightClickEntity(NPCRightClickEvent event) {
enterOrLeaveVehicle(event.getClicker());
}
@Override
public void run(Player rider) {
if (paused) {
npc.getEntity().setVelocity(npc.getEntity().getVelocity().setY(0.001));
return;
}
Vector dir = rider.getEyeLocation().getDirection();
dir.multiply(npc.getNavigator().getDefaultParameters().speedModifier());
npc.getEntity().setVelocity(dir);
setMountedYaw(npc.getEntity());
}
}
public static interface MovementController {
void leftClick(PlayerInteractEvent event);
void rightClick(PlayerInteractEvent event);
void rightClickEntity(NPCRightClickEvent event);
void run(Player rider);
}
public class PlayerInputAirController implements MovementController {
private boolean paused = false;
private double speed;
@Override
public void leftClick(PlayerInteractEvent event) {
paused = !paused;
}
@Override
public void rightClick(PlayerInteractEvent event) {
npc.getEntity().setVelocity(npc.getEntity().getVelocity().setY(-0.25F));
}
@Override
public void rightClickEntity(NPCRightClickEvent event) {
enterOrLeaveVehicle(event.getClicker());
}
@Override
public void run(Player rider) {
if (paused) {
npc.getEntity().setVelocity(npc.getEntity().getVelocity().setY(0.001F));
return;
}
speed = updateHorizontalSpeed(npc.getEntity(), rider, speed, 1F,
Setting.MAX_CONTROLLABLE_FLIGHT_SPEED.asDouble());
boolean shouldJump = NMS.shouldJump(rider);
if (shouldJump) {
npc.getEntity().setVelocity(npc.getEntity().getVelocity().setY(0.25F));
}
npc.getEntity().setVelocity(npc.getEntity().getVelocity().multiply(new Vector(1, 0.98, 1)));
setMountedYaw(npc.getEntity());
}
}
}