Difference between revisions of "Ignore"

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(Clarify and improve wording in certain parts)
(Replaced content with "[https://dev.luanti.org/nodes/#ignore This page has moved to the Luanti Developer Wiki!]")
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[https://dev.luanti.org/nodes/#ignore This page has moved to the Luanti Developer Wiki!]
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{{Block Data
 
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| image=Air.png
 
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| wherein=[[Minetest]]
 
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| block_name=Ignore
 
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| type = Internally-used block
 
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| physics = No
 
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| flammable = No
 
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| luminance=No
 
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| generated=No
 
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| renewable=No
 
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| itemstring=ignore
 
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| drops=''Nothing''
 
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}}
 
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[[File:Ignore_icon.png|160px|thumb|Inventory icon of Ignore]]
 
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'''Ignore''' (other names: '''<code>ignore</code>''' and '''<code>CONTENT_IGNORE</code>''') is a [[Nodes|block]] which is internally used by Minetest to represent an unloaded area. Normal players can just ignore this.
 
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== Behaviour ==
 
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Ignore is invisible, fully transparent like [[air]] is, and isn't [[Pointing|pointable]] but it behaves like a solid block, so players and objects collide with it can walk on it. No fall damage is received for falling on it. It can not be [[Mining|mined]], [[Placing|placed]], or obtained in normal gameplay, nor can it be obtained through [[Creative Mode]] or even the <code>/giveme</code> [[Server commands|command]].
 
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== Finding Ignore ==
 
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Normally, you won't be able to actually reach an Ignore block if Minetest loads the world reasonably fast. But if you can't walk or drop further, and the world seems to just “end” in a void, as if you hit an invisible wall, then you have probably found Ignore. This is likely when you play on a slow computer or on a server with high lag. Another possibility is that you reached one of the [[world boundaries]].
 
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== Technical background ==
 
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Ignore (itemstring: “<code>ignore</code>”) is a node that represents a node in a unloaded [http://dev.minetest.net/Terminology MapBlock]. If you try to access a block (with <code>minetest.get_node</code>) whose [http://dev.minetest.net/Terminology MapBlock] is unloaded, this is what you will get. You can use <code>minetest.get_node_or_nil</code> to get <code>nil</code> instead of <code>"ignore"</code>.
 
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In the Minetest source code, this node is also called “<code>CONTENT_IGNORE</code>”.
 
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=== Just for fun ===
 
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Remove those lines and test what happens after placing ignore: https://github.com/minetest/minetest/blob/6d7067fd37a8084aca139ecab552982e0ee99582/src/map.cpp#L181-L189
 

Latest revision as of 22:51, 20 December 2024

This page has moved to the Luanti Developer Wiki!

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