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83e3915015
* Makes some improvements to how AI can use JPS with movement loops (#72685) ## About The Pull Request This PR makes some changes to how JPS is used in movement loops, as it was causing a variety of issues: - Fixed some code where JPS would fail because the path is still being made. Instead, the movement loop will now wait. - Reduced the subsystem wait for the pathfinder subsystem from 2 seconds to 0.1 seconds. @ LemonInTheDark told me that this is better, I'll update this with a better explanation once I squeeze it out of him :D - Allows you to provide an initial path to the movement loop, in case you pre-calculated one while making a plan. ## Why It's Good For The Game Makes working with JPS a bit easier when making AI. --------- Co-authored-by: Capybara <Capybara@ CapybaraMailingServices.com> Co-authored-by: Jeremiah <42397676+jlsnow301@ users.noreply.github.com> Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@ users.noreply.github.com> * Makes some improvements to how AI can use JPS with movement loops --------- Co-authored-by: CapybaraExtravagante <110635252+CapybaraExtravagante@users.noreply.github.com> Co-authored-by: Capybara <Capybara@ CapybaraMailingServices.com> Co-authored-by: Jeremiah <42397676+jlsnow301@ users.noreply.github.com> Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@ users.noreply.github.com>
48 lines
1.8 KiB
Plaintext
48 lines
1.8 KiB
Plaintext
/// Queues and manages JPS pathfinding steps
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SUBSYSTEM_DEF(pathfinder)
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name = "Pathfinder"
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init_order = INIT_ORDER_PATH
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priority = FIRE_PRIORITY_PATHFINDING
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wait = 0.5
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/// List of pathfind datums we are currently trying to process
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var/list/datum/pathfind/active_pathing = list()
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/// List of pathfind datums being ACTIVELY processed. exists to make subsystem stats readable
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var/list/datum/pathfind/currentrun = list()
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var/static/space_type_cache
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/datum/controller/subsystem/pathfinder/Initialize()
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space_type_cache = typecacheof(/turf/open/space)
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return SS_INIT_SUCCESS
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/datum/controller/subsystem/pathfinder/stat_entry(msg)
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msg = "P:[length(active_pathing)]"
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return ..()
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// This is another one of those subsystems (hey lighting) in which one "Run" means fully processing a queue
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// We'll use a copy for this just to be nice to people reading the mc panel
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/datum/controller/subsystem/pathfinder/fire(resumed)
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if(!resumed)
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src.currentrun = active_pathing.Copy()
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// Dies of sonic speed from caching datum var reads
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var/list/currentrun = src.currentrun
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while(length(currentrun))
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var/datum/pathfind/path = currentrun[length(currentrun)]
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if(!path.search_step()) // Something's wrong
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path.early_exit()
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currentrun.len--
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continue
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if(MC_TICK_CHECK)
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return
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path.finished()
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// Next please
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currentrun.len--
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/// Initiates a pathfind. Returns true if we're good, FALSE if something's failed
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/datum/controller/subsystem/pathfinder/proc/pathfind(atom/movable/caller, atom/end, max_distance = 30, mintargetdist, id=null, simulated_only = TRUE, turf/exclude, skip_first=TRUE, diagonal_safety=TRUE, datum/callback/on_finish)
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var/datum/pathfind/path = new(caller, end, id, max_distance, mintargetdist, simulated_only, exclude, skip_first, diagonal_safety, on_finish)
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if(path.start())
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active_pathing += path
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return TRUE
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return FALSE
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