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Controllable.java
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Controllable.java
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package net.citizensnpcs.trait;
import java.lang.reflect.Constructor;
import java.util.Map;
import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
import org.bukkit.entity.Entity;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
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 com.google.common.collect.Maps;
import net.citizensnpcs.Settings.Setting;
import net.citizensnpcs.api.command.CommandConfigurable;
import net.citizensnpcs.api.command.CommandContext;
import net.citizensnpcs.api.event.NPCRightClickEvent;
import net.citizensnpcs.api.exception.NPCLoadException;
import net.citizensnpcs.api.persistence.Persist;
import net.citizensnpcs.api.trait.Trait;
import net.citizensnpcs.api.trait.trait.Owner;
import net.citizensnpcs.api.util.DataKey;
import net.citizensnpcs.util.NMS;
import net.citizensnpcs.util.Util;
import net.minecraft.server.v1_8_R3.EntityEnderDragon;
import net.minecraft.server.v1_8_R3.EntityLiving;
import net.minecraft.server.v1_8_R3.EntityPlayer;
//TODO: reduce reliance on CitizensNPC
public class Controllable extends Trait implements Toggleable, CommandConfigurable {
private MovementController controller = new GroundController();
@Persist
private boolean enabled = true;
private EntityType explicitType;
@Persist("owner_required")
private boolean ownerRequired;
public Controllable() {
super("controllable");
}
public Controllable(boolean enabled) {
this();
this.enabled = enabled;
}
@Override
public void configure(CommandContext args) {
if (args.hasFlag('f')) {
explicitType = EntityType.BLAZE;
} else if (args.hasFlag('g')) {
explicitType = EntityType.OCELOT;
} else if (args.hasFlag('o')) {
explicitType = EntityType.UNKNOWN;
} else if (args.hasFlag('r')) {
explicitType = null;
} else if (args.hasValueFlag("explicittype"))
explicitType = Util.matchEntityType(args.getFlag("explicittype"));
if (npc.isSpawned()) {
loadController();
}
}
private void enterOrLeaveVehicle(Player player) {
EntityPlayer handle = ((CraftPlayer) player).getHandle();
if (getHandle().passenger != null) {
if (getHandle().passenger == handle) {
player.leaveVehicle();
}
return;
}
if (ownerRequired && !npc.getTrait(Owner.class).isOwnedBy(handle.getBukkitEntity())) {
return;
}
handle.mount(getHandle());
}
private net.minecraft.server.v1_8_R3.Entity getHandle() {
return NMS.getHandle(npc.getEntity());
}
public boolean isEnabled() {
return enabled;
}
@Override
public void load(DataKey key) throws NPCLoadException {
if (key.keyExists("explicittype"))
explicitType = Util.matchEntityType(key.getString("explicittype"));
}
private void loadController() {
EntityType type = npc.getEntity().getType();
if (explicitType != null)
type = explicitType;
Class<? extends MovementController> clazz = controllerTypes.get(type);
if (clazz == null) {
controller = new GroundController();
return;
}
Constructor<? extends MovementController> innerConstructor = null;
try {
innerConstructor = clazz.getConstructor(Controllable.class);
innerConstructor.setAccessible(true);
} catch (Exception e) {
e.printStackTrace();
}
try {
if (innerConstructor == null) {
controller = clazz.newInstance();
} else
controller = innerConstructor.newInstance(this);
} catch (Exception e) {
e.printStackTrace();
controller = new GroundController();
}
}
public boolean mount(Player toMount) {
Entity passenger = npc.getEntity().getPassenger();
if (passenger != null && passenger != toMount) {
return false;
}
enterOrLeaveVehicle(toMount);
return true;
}
@EventHandler(ignoreCancelled = true, priority = EventPriority.MONITOR)
public void onPlayerInteract(PlayerInteractEvent event) {
if (!npc.isSpawned() || !enabled)
return;
EntityPlayer handle = ((CraftPlayer) event.getPlayer()).getHandle();
Action performed = event.getAction();
if (!handle.equals(getHandle().passenger))
return;
switch (performed) {
case RIGHT_CLICK_BLOCK:
case RIGHT_CLICK_AIR:
controller.rightClick(event);
break;
case LEFT_CLICK_BLOCK:
case LEFT_CLICK_AIR:
controller.leftClick(event);
break;
default:
break;
}
}
@EventHandler
public void onRightClick(NPCRightClickEvent event) {
if (!enabled || !npc.isSpawned() || !event.getNPC().equals(npc))
return;
controller.rightClickEntity(event);
}
@Override
public void onSpawn() {
loadController();
}
@Override
public void run() {
if (!enabled || !npc.isSpawned() || getHandle().passenger == null
|| !(getHandle().passenger.getBukkitEntity() instanceof Player))
return;
controller.run((Player) getHandle().passenger.getBukkitEntity());
}
@Override
public void save(DataKey key) {
if (explicitType == null) {
key.removeKey("explicittype");
} else {
key.setString("explicittype", explicitType.name());
}
}
public boolean setEnabled(boolean enabled) {
this.enabled = enabled;
return enabled;
}
private void setMountedYaw(net.minecraft.server.v1_8_R3.Entity handle) {
if (handle instanceof EntityEnderDragon || !Setting.USE_BOAT_CONTROLS.asBoolean())
return; // EnderDragon handles this separately
double tX = handle.locX + handle.motX;
double tZ = handle.locZ + handle.motZ;
if (handle.locZ > tZ) {
handle.yaw = (float) -Math.toDegrees(Math.atan((handle.locX - tX) / (handle.locZ - tZ))) + 180F;
} else if (handle.locZ < tZ) {
handle.yaw = (float) -Math.toDegrees(Math.atan((handle.locX - tX) / (handle.locZ - tZ)));
}
NMS.setHeadYaw(handle, handle.yaw);
}
public void setOwnerRequired(boolean ownerRequired) {
this.ownerRequired = ownerRequired;
}
@Override
public boolean toggle() {
enabled = !enabled;
if (!enabled && getHandle().passenger != null) {
getHandle().passenger.getBukkitEntity().leaveVehicle();
}
return enabled;
}
private double updateHorizontalSpeed(net.minecraft.server.v1_8_R3.Entity handle,
net.minecraft.server.v1_8_R3.Entity passenger, double speed, float speedMod) {
double oldSpeed = Math.sqrt(handle.motX * handle.motX + handle.motZ * handle.motZ);
double angle = Math.toRadians(passenger.yaw - ((EntityLiving) passenger).aZ * 45.0F);
handle.motX += speedMod * -Math.sin(angle) * ((EntityLiving) passenger).ba * 0.05;
handle.motZ += speedMod * Math.cos(angle) * ((EntityLiving) passenger).ba * 0.05;
double newSpeed = Math.sqrt(handle.motX * handle.motX + handle.motZ * handle.motZ);
if (newSpeed > oldSpeed && speed < 0.35D) {
return (float) Math.min(0.35D, (speed + ((0.35D - speed) / 35.0D)));
} else {
return (float) Math.max(0.07D, (speed - ((speed - 0.07D) / 35.0D)));
}
}
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) {
net.minecraft.server.v1_8_R3.Entity handle = getHandle();
net.minecraft.server.v1_8_R3.Entity passenger = ((CraftPlayer) rider).getHandle();
boolean onGround = handle.onGround;
float speedMod = npc.getNavigator().getDefaultParameters()
.modifiedSpeed((onGround ? GROUND_SPEED : AIR_SPEED));
speed = updateHorizontalSpeed(handle, passenger, speed, speedMod);
boolean shouldJump = NMS.shouldJump(passenger);
if (shouldJump) {
if (handle.onGround && jumpTicks == 0) {
getHandle().motY = JUMP_VELOCITY;
jumpTicks = 10;
}
} else {
jumpTicks = 0;
}
jumpTicks = Math.max(0, jumpTicks - 1);
setMountedYaw(handle);
}
private static final float AIR_SPEED = 1.5F;
private static final float GROUND_SPEED = 4F;
private static final float JUMP_VELOCITY = 0.6F;
}
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) {
getHandle().motY = 0.001;
return;
}
Vector dir = rider.getEyeLocation().getDirection();
dir.multiply(npc.getNavigator().getDefaultParameters().speedModifier());
net.minecraft.server.v1_8_R3.Entity handle = getHandle();
handle.motX = dir.getX();
handle.motY = dir.getY();
handle.motZ = dir.getZ();
setMountedYaw(handle);
}
}
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) {
getHandle().motY = -0.3F;
}
@Override
public void rightClickEntity(NPCRightClickEvent event) {
enterOrLeaveVehicle(event.getClicker());
}
@Override
public void run(Player rider) {
if (paused) {
getHandle().motY = 0.001;
return;
}
net.minecraft.server.v1_8_R3.Entity handle = getHandle();
net.minecraft.server.v1_8_R3.Entity passenger = ((CraftPlayer) rider).getHandle();
speed = updateHorizontalSpeed(handle, passenger, speed, 1F);
boolean shouldJump = NMS.shouldJump(passenger);
if (shouldJump) {
handle.motY = 0.3F;
}
handle.motY *= 0.98F;
}
}
public static void registerControllerType(EntityType type, Class<? extends MovementController> clazz) {
controllerTypes.put(type, clazz);
}
private static final Map<EntityType, Class<? extends MovementController>> controllerTypes = Maps
.newEnumMap(EntityType.class);
static {
controllerTypes.put(EntityType.BAT, PlayerInputAirController.class);
controllerTypes.put(EntityType.BLAZE, PlayerInputAirController.class);
controllerTypes.put(EntityType.ENDER_DRAGON, PlayerInputAirController.class);
controllerTypes.put(EntityType.GHAST, PlayerInputAirController.class);
controllerTypes.put(EntityType.WITHER, PlayerInputAirController.class);
controllerTypes.put(EntityType.UNKNOWN, LookAirController.class);
}
}