View source for Proposals/Pathfinder wishlist

This is a list of wishes for pathfinder.

== Basics ==
* '''Height clearance''': Require optional height clearance for tall objects (e.g. can only proceed if 2 nodes height are clear)
** Important because: Mobs and players rarely are only 1 node high
* '''Custom nodes''': Select which nodes to consider free (can move through), blocking (can not move through) or walkable (can walk upon)
** Important because: You want to teach mobs to avoid lava or other nasty blocks
* '''Width clearance''': Require the path to have at least a certain width e.g. between columns
** Important because: Mobs need to avoid narrow paths they can't fit through, especially if they are more than 1 node thick

== Movement options ==
These change how the pathfinder can move through the world. They are supposed to be toggable on/off.

* Fly
* Swim in liquids
* Climb in climbable nodes
* Move diagonally
* Use something (mainly for NPC using things such as boats, minecarts, ladders, teleporters) 

== Movement contraints ==
Add a couple of options to add rules to constrain movement. These should be toggable on/off.

* Avoid nodes with <code>damage_per_second > 0</code>
* Avoid nodes with <code>drowning > 0</code>
* Avoid liquids
* Avoid non-liquids
* Don't jump on or in <code>disable_jump</code> nodes
* Prefer nodes to travel on (for example gravel rather than dirt/grass)

== Other ==
* Support nodeboxes (but how?)
* Time out when search takes too long (with parameter?)
* default action after move impulse is gone such as "back to base" after intruding player is out of view.

== Issues ==
https://github.com/minetest/minetest/issues/5479

[[Category:Core Engine]]