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Bubberstation/code/datums/components/scope.dm
SkyratBot 067188d366 [MIRROR] Micro-optimize qdel by only permitting one parameter [MDB IGNORE] (#25889)
* Micro-optimize qdel by only permitting one parameter (#80628)

Productionizes #80615.

The core optimization is this:

```patch
-	var/hint = to_delete.Destroy(arglist(args.Copy(2))) // Let our friend know they're about to get fucked up.
+	var/hint = to_delete.Destroy(force) // Let our friend know they're about to get fucked up.
```

We avoid a heap allocation in the form of copying the args over to a new
list. A/B testing shows this results in 33% better overtime, and in a
real round shaving off a full second of self time and 0.4 seconds of
overtime--both of these would be doubled in the event this is merged as
the new proc was only being run 50% of the time.

* Micro-optimize qdel by only permitting one parameter

---------

Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com>
2023-12-29 14:41:12 +00:00

202 lines
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/datum/component/scope
/// How far we can extend, with modifier of 1, up to our vision edge, higher numbers multiply.
var/range_modifier = 1
/// Fullscreen object we use for tracking the shots.
var/atom/movable/screen/fullscreen/cursor_catcher/scope/tracker
/// The owner of the tracker's ckey. For comparing with the current owner mob, in case the client has left it (e.g. ghosted).
var/tracker_owner_ckey
/// Are we zooming currently?
var/zooming
/datum/component/scope/Initialize(range_modifier)
if(!isgun(parent))
return COMPONENT_INCOMPATIBLE
src.range_modifier = range_modifier
/datum/component/scope/Destroy(force)
if(tracker)
stop_zooming(tracker.owner)
return ..()
/datum/component/scope/RegisterWithParent()
RegisterSignal(parent, COMSIG_MOVABLE_MOVED, PROC_REF(on_move))
RegisterSignal(parent, COMSIG_ITEM_AFTERATTACK_SECONDARY, PROC_REF(on_secondary_afterattack))
RegisterSignal(parent, COMSIG_GUN_TRY_FIRE, PROC_REF(on_gun_fire))
RegisterSignal(parent, COMSIG_ATOM_EXAMINE, PROC_REF(on_examine))
/datum/component/scope/UnregisterFromParent()
UnregisterSignal(parent, list(
COMSIG_MOVABLE_MOVED,
COMSIG_ITEM_AFTERATTACK_SECONDARY,
COMSIG_GUN_TRY_FIRE,
COMSIG_ATOM_EXAMINE,
))
/datum/component/scope/process(seconds_per_tick)
var/mob/user_mob = tracker.owner
var/client/user_client = user_mob.client
if(!user_client)
stop_zooming(user_mob)
return
tracker.calculate_params()
if(!length(user_client.keys_held & user_client.movement_keys))
user_mob.face_atom(tracker.given_turf)
animate(user_client, world.tick_lag, pixel_x = tracker.given_x, pixel_y = tracker.given_y)
/datum/component/scope/proc/on_move(atom/movable/source, atom/oldloc, dir, forced)
SIGNAL_HANDLER
if(!tracker)
return
stop_zooming(tracker.owner)
/datum/component/scope/proc/on_secondary_afterattack(datum/source, atom/target, mob/user, proximity_flag, click_parameters)
SIGNAL_HANDLER
if(tracker)
stop_zooming(user)
else
start_zooming(user)
return COMPONENT_SECONDARY_CANCEL_ATTACK_CHAIN
/datum/component/scope/proc/on_gun_fire(obj/item/gun/source, mob/living/user, atom/target, flag, params)
SIGNAL_HANDLER
if(!tracker?.given_turf || target == get_target(tracker.given_turf))
return NONE
INVOKE_ASYNC(source, TYPE_PROC_REF(/obj/item/gun, fire_gun), get_target(tracker.given_turf), user)
return COMPONENT_CANCEL_GUN_FIRE
/datum/component/scope/proc/on_examine(datum/source, mob/user, list/examine_list)
SIGNAL_HANDLER
examine_list += span_notice("You can scope in with <b>right-click</b>.")
/**
* We find and return the best target to hit on a given turf.
*
* Arguments:
* * target_turf: The turf we are looking for targets on.
*/
/datum/component/scope/proc/get_target(turf/target_turf)
var/list/object_targets = list()
var/list/non_dense_targets = list()
for(var/atom/movable/possible_target in target_turf)
if(possible_target.layer <= PROJECTILE_HIT_THRESHHOLD_LAYER)
continue
if(possible_target.invisibility > tracker.owner.see_invisible)
continue
if(!possible_target.mouse_opacity)
continue
if(iseffect(possible_target))
continue
if(ismob(possible_target))
if(possible_target == tracker.owner)
continue
return possible_target
if(!possible_target.density)
non_dense_targets += possible_target
continue
object_targets += possible_target
for(var/obj/important_object as anything in object_targets)
return important_object
for(var/obj/unimportant_object as anything in non_dense_targets)
return unimportant_object
return target_turf
/**
* Wrapper for zoom(), so in case we runtime we do not get stuck in a bad state
*
* Arguments:
* * user: The mob we are starting zooming on.
*/
/datum/component/scope/proc/start_zooming(mob/user)
if(zoom(user))
zooming = TRUE
/**
* We start zooming by hiding the mouse pointer, adding our tracker overlay and starting our processing.
*
* Arguments:
* * user: The mob we are starting zooming on.
*/
/datum/component/scope/proc/zoom(mob/user)
if(isnull(user.client))
return
if(zooming)
return
user.client.mouse_override_icon = 'icons/effects/mouse_pointers/scope_hide.dmi'
user.update_mouse_pointer()
user.playsound_local(parent, 'sound/weapons/scope.ogg', 75, TRUE)
tracker = user.overlay_fullscreen("scope", /atom/movable/screen/fullscreen/cursor_catcher/scope, 0)
tracker.assign_to_mob(user, range_modifier)
tracker_owner_ckey = user.ckey
RegisterSignals(user, list(COMSIG_MOB_SWAP_HANDS, COMSIG_QDELETING), PROC_REF(stop_zooming))
START_PROCESSING(SSprojectiles, src)
return TRUE
/**
* We stop zooming, canceling processing, resetting stuff back to normal and deleting our tracker.
*
* Arguments:
* * user: The mob we are canceling zooming on.
*/
/datum/component/scope/proc/stop_zooming(mob/user)
SIGNAL_HANDLER
if(!zooming)
return
STOP_PROCESSING(SSprojectiles, src)
UnregisterSignal(user, list(COMSIG_MOB_SWAP_HANDS, COMSIG_QDELETING))
zooming = FALSE
user.playsound_local(parent, 'sound/weapons/scope.ogg', 75, TRUE, frequency = -1)
user.clear_fullscreen("scope")
// if the client has ended up in another mob, find that mob so we can fix their cursor
var/mob/true_user
if(user.ckey != tracker_owner_ckey)
true_user = get_mob_by_ckey(tracker_owner_ckey)
if(!isnull(true_user))
user = true_user
if(user.client)
animate(user.client, 0.2 SECONDS, pixel_x = 0, pixel_y = 0)
user.client.mouse_override_icon = null
user.update_mouse_pointer()
tracker = null
tracker_owner_ckey = null
/atom/movable/screen/fullscreen/cursor_catcher/scope
icon_state = "scope"
/// Multiplier for given_X an given_y.
var/range_modifier = 1
/atom/movable/screen/fullscreen/cursor_catcher/scope/assign_to_mob(mob/new_owner, range_modifier)
src.range_modifier = range_modifier
return ..()
/atom/movable/screen/fullscreen/cursor_catcher/scope/Click(location, control, params)
if(usr == owner)
calculate_params()
return ..()
/atom/movable/screen/fullscreen/cursor_catcher/scope/calculate_params()
var/list/modifiers = params2list(mouse_params)
var/icon_x = text2num(LAZYACCESS(modifiers, VIS_X))
if(isnull(icon_x))
icon_x = text2num(LAZYACCESS(modifiers, ICON_X))
if(isnull(icon_x))
icon_x = view_list[1]*world.icon_size/2
var/icon_y = text2num(LAZYACCESS(modifiers, VIS_Y))
if(isnull(icon_y))
icon_y = text2num(LAZYACCESS(modifiers, ICON_Y))
if(isnull(icon_y))
icon_y = view_list[2]*world.icon_size/2
given_x = round(range_modifier * (icon_x - view_list[1]*world.icon_size/2))
given_y = round(range_modifier * (icon_y - view_list[2]*world.icon_size/2))
given_turf = locate(owner.x+round(given_x/world.icon_size, 1),owner.y+round(given_y/world.icon_size, 1),owner.z)