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Bubberstation/code/datums/components/fov_handler.dm
AnturK 4d6a8bc537 515 Compatibility (#71161)
Makes the code compatible with 515.1594+

Few simple changes and one very painful one.
Let's start with the easy:
* puts call behind `LIBCALL` define, so call_ext is properly used in 515
* Adds `NAMEOF_STATIC(_,X)` macro for nameof in static definitions since
src is now invalid there.
* Fixes tgui and devserver. From 515 onward the tmp3333{procid} cache
directory is not appened to base path in browser controls so we don't
check for it in base js and put the dev server dummy window file in
actual directory not the byond root.
* Renames the few things that had /final/ in typepath to ultimate since
final is a new keyword

And the very painful change:
`.proc/whatever` format is no longer valid, so we're replacing it with
new nameof() function. All this wrapped in three new macros.
`PROC_REF(X)`,`TYPE_PROC_REF(TYPE,X)`,`GLOBAL_PROC_REF(X)`. Global is
not actually necessary but if we get nameof that does not allow globals
it would be nice validation.
This is pretty unwieldy but there's no real alternative.
If you notice anything weird in the commits let me know because majority
was done with regex replace.

@tgstation/commit-access Since the .proc/stuff is pretty big change.

Co-authored-by: san7890 <the@san7890.com>
Co-authored-by: Mothblocks <35135081+Mothblocks@users.noreply.github.com>
2022-11-15 03:50:11 +00:00

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/// Component which handles Field of View masking for clients. FoV attributes are at /mob/living
/datum/component/fov_handler
/// Currently applied x size of the fov masks
var/current_fov_x = BASE_FOV_MASK_X_DIMENSION
/// Currently applied y size of the fov masks
var/current_fov_y = BASE_FOV_MASK_Y_DIMENSION
/// Whether we are applying the masks now
var/applied_mask = FALSE
/// The angle of the mask we are applying
var/fov_angle = FOV_180_DEGREES
/// The blocker mask applied to a client's screen
var/atom/movable/screen/fov_blocker/blocker_mask
/// The shadow mask applied to a client's screen
var/atom/movable/screen/fov_shadow/visual_shadow
/datum/component/fov_handler/Initialize(fov_type = FOV_180_DEGREES)
if(!isliving(parent))
return COMPONENT_INCOMPATIBLE
var/mob/living/mob_parent = parent
var/client/parent_client = mob_parent.client
if(!parent_client) //Love client volatility!!
qdel(src) //no QDEL hint for components, and we dont want this to print a warning regarding bad component application
return
for(var/atom/movable/screen/plane_master/plane_master in mob_parent.hud_used.get_true_plane_masters(FIELD_OF_VISION_BLOCKER_PLANE))
plane_master.unhide_plane(mob_parent)
blocker_mask = new
visual_shadow = new
visual_shadow.alpha = parent_client?.prefs.read_preference(/datum/preference/numeric/fov_darkness)
set_fov_angle(fov_type)
on_dir_change(mob_parent, mob_parent.dir, mob_parent.dir)
update_fov_size()
update_mask()
/datum/component/fov_handler/Destroy()
var/mob/living/mob_parent = parent
for(var/atom/movable/screen/plane_master/plane_master in mob_parent.hud_used.get_true_plane_masters(FIELD_OF_VISION_BLOCKER_PLANE))
plane_master.hide_plane(mob_parent)
if(applied_mask)
remove_mask()
if(blocker_mask) // In a case of early deletion due to volatile client
QDEL_NULL(blocker_mask)
if(visual_shadow) // In a case of early deletion due to volatile client
QDEL_NULL(visual_shadow)
return ..()
/datum/component/fov_handler/proc/set_fov_angle(new_angle)
fov_angle = new_angle
blocker_mask.icon_state = "[fov_angle]"
visual_shadow.icon_state = "[fov_angle]_v"
/// Updates the size of the FOV masks by comparing them to client view size.
/datum/component/fov_handler/proc/update_fov_size()
SIGNAL_HANDLER
var/mob/parent_mob = parent
var/client/parent_client = parent_mob.client
if(!parent_client) //Love client volatility!!
return
var/list/view_size = getviewsize(parent_client.view)
if(view_size[1] == current_fov_x && view_size[2] == current_fov_y)
return
current_fov_x = BASE_FOV_MASK_X_DIMENSION
current_fov_y = BASE_FOV_MASK_Y_DIMENSION
var/matrix/new_matrix = new
var/x_shift = view_size[1] - current_fov_x
var/y_shift = view_size[2] - current_fov_y
var/x_scale = view_size[1] / current_fov_x
var/y_scale = view_size[2] / current_fov_y
current_fov_x = view_size[1]
current_fov_y = view_size[2]
visual_shadow.transform = blocker_mask.transform = new_matrix.Scale(x_scale, y_scale)
visual_shadow.transform = blocker_mask.transform = new_matrix.Translate(x_shift * 16, y_shift * 16)
/// Updates the mask application to client by checking `stat` and `eye`
/datum/component/fov_handler/proc/update_mask()
SIGNAL_HANDLER
var/mob/parent_mob = parent
var/client/parent_client = parent_mob.client
if(!parent_client) //Love client volatility!!
return
var/user_living = parent_mob != DEAD
var/atom/top_most_atom = get_atom_on_turf(parent_mob)
var/user_extends_eye = parent_client.eye != top_most_atom
var/should_apply_mask = user_living && !user_extends_eye
if(should_apply_mask == applied_mask)
return
if(should_apply_mask)
add_mask()
else
remove_mask()
/datum/component/fov_handler/proc/remove_mask()
var/mob/parent_mob = parent
var/client/parent_client = parent_mob.client
if(!parent_client) //Love client volatility!!
return
applied_mask = FALSE
parent_client.screen -= blocker_mask
parent_client.screen -= visual_shadow
/datum/component/fov_handler/proc/add_mask()
var/mob/parent_mob = parent
var/client/parent_client = parent_mob.client
if(!parent_client) //Love client volatility!!
return
applied_mask = TRUE
parent_client.screen += blocker_mask
parent_client.screen += visual_shadow
/// When a direction of the user changes, so do the masks
/datum/component/fov_handler/proc/on_dir_change(mob/source, old_dir, new_dir)
SIGNAL_HANDLER
blocker_mask.dir = new_dir
visual_shadow.dir = new_dir
/// When a mob logs out, delete the component
/datum/component/fov_handler/proc/mob_logout(mob/source)
SIGNAL_HANDLER
qdel(src)
/datum/component/fov_handler/RegisterWithParent()
. = ..()
RegisterSignal(parent, COMSIG_ATOM_DIR_CHANGE, PROC_REF(on_dir_change))
RegisterSignal(parent, COMSIG_LIVING_DEATH, PROC_REF(update_mask))
RegisterSignal(parent, COMSIG_LIVING_REVIVE, PROC_REF(update_mask))
RegisterSignal(parent, COMSIG_MOB_CLIENT_CHANGE_VIEW, PROC_REF(update_fov_size))
RegisterSignal(parent, COMSIG_MOB_RESET_PERSPECTIVE, PROC_REF(update_mask))
RegisterSignal(parent, COMSIG_MOB_LOGOUT, PROC_REF(mob_logout))
/datum/component/fov_handler/UnregisterFromParent()
. = ..()
UnregisterSignal(parent, list(COMSIG_MOB_RESET_PERSPECTIVE, COMSIG_ATOM_DIR_CHANGE, COMSIG_LIVING_DEATH, COMSIG_LIVING_REVIVE, COMSIG_MOB_LOGOUT))