164 lines
5.6 KiB
Java
164 lines
5.6 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2018.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.event.entity.living;
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import javax.annotation.Nullable;
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import net.minecraft.tileentity.MobSpawnerBaseLogic;
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import net.minecraftforge.common.MinecraftForge;
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import net.minecraftforge.event.ForgeEventFactory;
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import net.minecraftforge.eventbus.api.Event;
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import net.minecraft.entity.EntityLiving;
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import net.minecraft.world.World;
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/**
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* LivingSpawnEvent is fired for any events associated with Living Entities spawn status. <br>
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* If a method utilizes this {@link Event} as its parameter, the method will
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* receive every child event of this class.<br>
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* <br>
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* {@link #world} contains the world in which this living Entity is being spawned.<br>
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* {@link #x} contains the x-coordinate this entity is being spawned at.<br>
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* {@link #y} contains the y-coordinate this entity is being spawned at.<br>
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* {@link #z} contains the z-coordinate this entity is being spawned at.<br>
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* <br>
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* All children of this event are fired on the {@link MinecraftForge#EVENT_BUS}.
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**/
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public class LivingSpawnEvent extends LivingEvent
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{
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private final World world;
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private final float x;
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private final float y;
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private final float z;
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public LivingSpawnEvent(EntityLiving entity, World world, float x, float y, float z)
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{
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super(entity);
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this.world = world;
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this.x = x;
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this.y = y;
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this.z = z;
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}
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public World getWorld() { return world; }
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public float getX() { return x; }
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public float getY() { return y; }
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public float getZ() { return z; }
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/**
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* Fires before mob spawn events.
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*
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* Result is significant:
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* DEFAULT: use vanilla spawn rules
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* ALLOW: allow the spawn
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* DENY: deny the spawn
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*
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*/
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@HasResult
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public static class CheckSpawn extends LivingSpawnEvent
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{
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@Nullable
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private final MobSpawnerBaseLogic spawner;
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/**
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* CheckSpawn is fired when an Entity is about to be spawned.
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* @param entity the spawning entity
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* @param world the world to spawn in
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* @param x x coordinate
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* @param y y coordinate
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* @param z z coordinate
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* @param spawner position of the MobSpawner
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* null if it this spawn is coming from a WorldSpawner
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*/
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public CheckSpawn(EntityLiving entity, World world, float x, float y, float z, @Nullable MobSpawnerBaseLogic spawner)
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{
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super(entity, world, x, y, z);
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this.spawner = spawner;
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}
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public boolean isSpawner()
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{
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return spawner != null; // TODO: replace with spawner null check in 1.13
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}
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@Nullable
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public MobSpawnerBaseLogic getSpawner()
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{
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return spawner;
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}
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}
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/**
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* SpecialSpawn is fired when an Entity is to be spawned.<br>
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* This allows you to do special inializers in the new entity.<br>
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* <br>
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* This event is fired via the {@link ForgeEventFactory#doSpecialSpawn(EntityLiving, World, float, float, float)}.<br>
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* <br>
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* This event is {@link net.minecraftforge.eventbus.api.Cancelable}.<br>
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* If this event is canceled, the Entity is not spawned.<br>
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* <br>
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* This event does not have a result. {@link HasResult}<br>
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* <br>
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* This event is fired on the {@link MinecraftForge#EVENT_BUS}.
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**/
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@net.minecraftforge.eventbus.api.Cancelable
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public static class SpecialSpawn extends LivingSpawnEvent
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{
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@Nullable
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private final MobSpawnerBaseLogic spawner;
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/**
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* @param spawner the position of a tileentity or approximate position of an entity that initiated the spawn if any
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*/
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public SpecialSpawn(EntityLiving entity, World world, float x, float y, float z, @Nullable MobSpawnerBaseLogic spawner)
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{
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super(entity, world, x, y, z);
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this.spawner = spawner;
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}
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@Nullable
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public MobSpawnerBaseLogic getSpawner()
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{
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return spawner;
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}
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}
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/**
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* Fired each tick for despawnable mobs to allow control over despawning.
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* {@link Result#DEFAULT} will pass the mob on to vanilla despawn mechanics.
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* {@link Result#ALLOW} will force the mob to despawn.
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* {@link Result#DENY} will force the mob to remain.
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* This is fired every tick for every despawnable entity. Be efficient in your handlers.
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*
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* Note: this is not fired <em>if</em> the mob is definitely going to otherwise despawn. It is fired to check if
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* the mob can be allowed to despawn. See {@link EntityLiving#despawnEntity}
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*
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* @author cpw
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*
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*/
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@HasResult
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public static class AllowDespawn extends LivingSpawnEvent
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{
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public AllowDespawn(EntityLiving entity)
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{
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super(entity, entity.world, (float)entity.posX, (float)entity.posY, (float)entity.posZ);
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}
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}
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}
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