PlayerList.java 文件源码

public void changeDimension(EntityPlayer entityplayer, int i, TeleportCause cause) {
    WorldServer exitWorld = null;
    if (entityplayer.dimension < CraftWorld.CUSTOM_DIMENSION_OFFSET) { // plugins must specify exit from custom Bukkit worlds
        // only target existing worlds (compensate for allow-nether/allow-end as false)
        for (WorldServer world : this.server.worlds) {
            if (world.dimension == i) {
                exitWorld = world;
            }
        }
    }

    Location enter = entityplayer.getBukkitEntity().getLocation();
    Location exit = null;
    boolean useTravelAgent = false; // don't use agent for custom worlds or return from THE_END
    if (exitWorld != null) {
        if ((cause == TeleportCause.END_PORTAL) && (i == 0)) {
            // THE_END -> NORMAL; use bed if available, otherwise default spawn
            exit = ((org.bukkit.craftbukkit.entity.CraftPlayer) entityplayer.getBukkitEntity()).getBedSpawnLocation();
            if (exit == null || ((CraftWorld) exit.getWorld()).getHandle().dimension != 0) {
                exit = exitWorld.getWorld().getSpawnLocation();
            }
        } else {
            // NORMAL <-> NETHER or NORMAL -> THE_END
            exit = this.calculateTarget(enter, exitWorld);
            useTravelAgent = true;
        }
    }

    TravelAgent agent = exit != null ? (TravelAgent) ((CraftWorld) exit.getWorld()).getHandle().getTravelAgent() : org.bukkit.craftbukkit.CraftTravelAgent.DEFAULT; // return arbitrary TA to compensate for implementation dependent plugins
    PlayerPortalEvent event = new PlayerPortalEvent(entityplayer.getBukkitEntity(), enter, exit, agent, cause);
    event.useTravelAgent(useTravelAgent);
    Bukkit.getServer().getPluginManager().callEvent(event);
    if (event.isCancelled() || event.getTo() == null) {
        return;
    }

    exit = event.useTravelAgent() ? event.getPortalTravelAgent().findOrCreate(event.getTo()) : event.getTo();
    if (exit == null) {
        return;
    }
    exitWorld = ((CraftWorld) exit.getWorld()).getHandle();

    Vector velocity = entityplayer.getBukkitEntity().getVelocity();
    boolean before = exitWorld.chunkProviderServer.forceChunkLoad;
    exitWorld.chunkProviderServer.forceChunkLoad = true;
    exitWorld.getTravelAgent().adjustExit(entityplayer, exit, velocity);
    exitWorld.chunkProviderServer.forceChunkLoad = before;

    this.moveToWorld(entityplayer, exitWorld.dimension, true, exit, false); // Vanilla doesn't check for suffocation when handling portals, so neither should we
    if (entityplayer.motX != velocity.getX() || entityplayer.motY != velocity.getY() || entityplayer.motZ != velocity.getZ()) {
        entityplayer.getBukkitEntity().setVelocity(velocity);
    }
    // CraftBukkit end
}