How to use

hasWorld

method

in

com.enderio.core.common.TileEntityBase

public boolean canPlayerAccess(EntityPlayer player) {
 return hasWorld() && !isInvalid() && player.getDistanceSqToCenter(getPos()) <= 64D;
}

protected boolean isPoweredRedstone() {
 return hasWorld() && world.isBlockLoaded(getPos()) ? world.isBlockIndirectlyGettingPowered(getPos()) > 0 : false;
}

protected void updateBlock() {
 if (hasWorld() && world.isBlockLoaded(getPos())) {
  IBlockState bs = world.getBlockState(getPos());
  world.notifyBlockUpdate(pos, bs, bs, 3);
 }
}

@Override
public void markDirty() {
 if (hasWorld() && world.isBlockLoaded(getPos())) { // we need the loaded check to make sure we don't trigger a chunk load while the chunk is loaded
  world.markChunkDirty(pos, this);
  IBlockState state = world.getBlockState(pos);
  if (state.hasComparatorInputOverride()) {
   world.updateComparatorOutputLevel(pos, state.getBlock());
  }
 }
}

@Override
public final void update() {
 if (!hasWorld() || isInvalid() || !world.isBlockLoaded(getPos()) || world.getTileEntity(getPos()) != this) {
  // we can get ticked after being removed from the world, ignore this
  return;
 }
 if (ConfigHandler.allowExternalTickSpeedup || world.getTotalWorldTime() != lastUpdate) {
  lastUpdate = world.getTotalWorldTime();
  doUpdate();
  sendProgressIf();
 }
}

@SuppressWarnings({ "null", "unused" })
@Override
public final void render(@Nonnull T te, double x, double y, double z, float partialTicks, int destroyStage, float alpha) {
 if (te != null && te.hasWorld() && !te.isInvalid()) {
  final IBlockState blockState = te.getWorld().getBlockState(te.getPos());
  final int renderPass = MinecraftForgeClient.getRenderPass();
  if ((block == null || block == blockState.getBlock()) && shouldRender(te, blockState, renderPass)) {
   GlStateManager.disableLighting();
   if (renderPass == 0) {
    GlStateManager.disableBlend();
    GlStateManager.depthMask(true);
   } else {
    GlStateManager.enableBlend();
    GlStateManager.depthMask(false);
    GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
   }
   RenderUtil.bindBlockTexture();
   GlStateManager.pushMatrix();
   GlStateManager.translate(x, y, z);
   renderTileEntity(te, blockState, partialTicks, destroyStage);
   GlStateManager.popMatrix();
  }
 } else if (te == null) {
  renderItem();
 }
}