Method spawnEntityInWorld

src/main/java/net/minecraft/world/World.java:1144–1173

Called when an entity is spawned in the world. This includes players.

(Entity entityIn)

     * Called when an entity is spawned in the world. This includes players.
     */
    public boolean spawnEntityInWorld(Entity entityIn)
    {
        int i = MathHelper.floor_double(entityIn.posX / 16.0D);
        int j = MathHelper.floor_double(entityIn.posZ / 16.0D);
        boolean flag = entityIn.forceSpawn;

        if (entityIn instanceof EntityPlayer)
        {
            flag = true;
        }

        if (!flag && !this.isChunkLoaded(i, j, true))
        {
            return false;
        }
        else
        {
            if (entityIn instanceof EntityPlayer)
            {
                EntityPlayer entityplayer = (EntityPlayer)entityIn;
                this.playerEntities.add(entityplayer);
                this.updateAllPlayersSleepingFlag();
            }

            this.getChunkFromChunkCoords(i, j).addEntity(entityIn);
            this.loadedEntityList.add(entityIn);
            this.onEntityAdded(entityIn);
            return true;
        }
    }

    protected void onEntityAdded(Entity entityIn)
    {