[MC-995] Mobs don't swim up Created: 28/Oct/12  Updated: 03/May/15  Resolved: 09/Nov/12

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Minecraft 1.4.2
Fix Version/s: None

Type: Bug
Reporter: Orion Humphrey Assignee: Unassigned
Resolution: Works As Intended Votes: 0
Labels: mob, skeletons, swim, zombie
Environment:

Windows 7, Java 7 Update 9


Issue Links:
Duplicate
is duplicated by MC-9203 Mobs dont float next to walls as in: ... Resolved
is duplicated by MC-17577 The ocelots can't swim Resolved
is duplicated by MC-36543 Mobs not swimming Resolved
is duplicated by MC-47784 Chickens can not swim up Resolved
is duplicated by MC-61405 Ocelots/Cats don't swim to the surfac... Resolved
is duplicated by MC-65504 Some mobs do not swim up some sink Resolved
Relates
relates to MC-49937 Mobs can't swim Resolved
Confirmation Status: Unconfirmed

 Description   

Putting skeletons and zombies in some water will just drown them. They will make no attempt to swim up unless you hit them.



 Comments   
Comment by Orion Humphrey [ 04/Nov/12 ]

Yeah I realize that now. How do I delete this bug.

Comment by [Mod] Torabi [ 04/Nov/12 ]

Mobs can only swim upwards in source blocks, not flowing water. Otherwise, they could swim up waterfalls. Then again, the player can...

This behavior is extremely useful for mob drowning traps. Whether that's a strike for it or against it in the developers' eyes, I don't know, but this behavior has existed for a very long time without being changed.

Comment by Joshua [ 01/Nov/12 ]

Confirmed.

Steps the repeat:
make a 2x2x3 deep hole fill only the top with water. spawn mobs on the bottom. They will stay there till punched.

Edit: You can also punch them back down to the bottom and they'll get stuck again.

Comment by Orion Humphrey [ 31/Oct/12 ]

Yeah but not if its flowing water.

Comment by Rectar2 [ 30/Oct/12 ]

I could get it working if you fill all 3 blocks with sources.

Comment by Orion Humphrey [ 30/Oct/12 ]

I did some more testing and it seems it has been in since at least 1.2.5. This may not be a bug but in my opinion mobs should still be able to swim up.

Comment by Pixelgraph [ 30/Oct/12 ]

Tested positive it appears that mobs may not have enough strength to fight the current.

Comment by Orion Humphrey [ 28/Oct/12 ]

If you dig 3 blocks down, put a water source at the top, and then spawn a skeleton at the bottom it will not swim up. However if you place a skeleton in the source block it will swim. I have a couple screen shots if you need it but I don't think it's necessary.

Comment by Pixelgraph [ 28/Oct/12 ]

Could not confirm. Please give more detail in your reports.

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