How do you check if a block is in a loaded chunk

[CraftedCart]

Hi. I have a TileEntity which sets blocks, however I'm running into a problem where if it tries to place a block in an unloaded chunk (I think), a large, oddly shaped wall appears in that unloaded area, before the chunk is loaded and the wall is removed.

 

Minecraft also appears to slow to a crawl while this happens. Chunks take a really long time to load, and I get

Can't keep up

messages several times in the console.

 

How would I check if a block is in a loaded chunk, before trying to place it?

 

Here are some screenshots:

[Draco18s]

world.chunkExists

will return true if the chunk is loaded.

[ljfa]

There is also World.blockExists. Well, a bit misleading name.

[CraftedCart]

There is also World.blockExists. Well, a bit misleading name.

 

world.chunkExists

will return true if the chunk is loaded.

 

Are they for 1.7? I can't seem to find them in 1.8. I did manage to find

worldObj.isBlockLoaded()

however

[Draco18s]

You didn't mention 1.8 at all. The method may not have been MCP'd yet. Check the classes that implement IChunkProvider, specifically for the methods in IChunkProvider.