mirror of
https://github.com/SPLURT-Station/S.P.L.U.R.T-Station-13.git
synced 2025-12-10 09:54:52 +00:00
77 lines
2.6 KiB
Plaintext
77 lines
2.6 KiB
Plaintext
SUBSYSTEM_DEF(vis_overlays)
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name = "Vis contents overlays"
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wait = 1 MINUTES
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priority = FIRE_PRIORITY_VIS
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init_order = INIT_ORDER_VIS
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var/list/vis_overlay_cache
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var/list/currentrun
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/datum/controller/subsystem/vis_overlays/Initialize()
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vis_overlay_cache = list()
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return ..()
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/datum/controller/subsystem/vis_overlays/fire(resumed = FALSE)
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if(!resumed)
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currentrun = vis_overlay_cache.Copy()
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var/list/current_run = currentrun
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while(current_run.len)
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var/key = current_run[current_run.len]
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var/obj/effect/overlay/vis/overlay = current_run[key]
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current_run.len--
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if(!overlay.unused && !length(overlay.vis_locs))
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overlay.unused = world.time
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else if(overlay.unused && overlay.unused + overlay.cache_expiration < world.time)
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vis_overlay_cache -= key
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qdel(overlay)
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if(MC_TICK_CHECK)
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return
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//the "thing" var can be anything with vis_contents which includes images
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/datum/controller/subsystem/vis_overlays/proc/add_vis_overlay(atom/movable/thing, icon, iconstate, layer, plane, dir, alpha = 255, add_appearance_flags = NONE)
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. = "[icon]|[iconstate]|[layer]|[plane]|[dir]|[alpha]|[add_appearance_flags]"
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var/obj/effect/overlay/vis/overlay = vis_overlay_cache[.]
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if(!overlay)
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overlay = new
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overlay.icon = icon
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overlay.icon_state = iconstate
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overlay.layer = layer
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overlay.plane = plane
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overlay.dir = dir
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overlay.alpha = alpha
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overlay.appearance_flags |= add_appearance_flags
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vis_overlay_cache[.] = overlay
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else
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overlay.unused = 0
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thing.vis_contents += overlay
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if(!isatom(thing)) // Automatic rotation is not supported on non atoms
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return
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if(!thing.managed_vis_overlays)
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thing.managed_vis_overlays = list(overlay)
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RegisterSignal(thing, COMSIG_ATOM_DIR_CHANGE, .proc/rotate_vis_overlay)
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else
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thing.managed_vis_overlays += overlay
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/datum/controller/subsystem/vis_overlays/proc/remove_vis_overlay(atom/movable/thing, list/overlays)
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thing.vis_contents -= overlays
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if(!isatom(thing))
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return
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thing.managed_vis_overlays -= overlays
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if(!length(thing.managed_vis_overlays))
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thing.managed_vis_overlays = null
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UnregisterSignal(thing, COMSIG_ATOM_DIR_CHANGE)
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/datum/controller/subsystem/vis_overlays/proc/rotate_vis_overlay(atom/thing, old_dir, new_dir)
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if(old_dir == new_dir)
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return
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var/rotation = dir2angle(old_dir) - dir2angle(new_dir)
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var/list/overlays_to_remove = list()
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for(var/i in thing.managed_vis_overlays)
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var/obj/effect/overlay/vis/overlay = i
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add_vis_overlay(thing, overlay.icon, overlay.icon_state, overlay.layer, overlay.plane, turn(overlay.dir, rotation), overlay.alpha, overlay.appearance_flags)
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overlays_to_remove += overlay
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remove_vis_overlay(thing, overlays_to_remove)
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