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Bubberstation/code/__HELPERS/icon_smoothing.dm
SkyratBot 498af23776 [MIRROR] Addresses Icon Smoothing Runtimes [MDB IGNORE] (#25494) 
* Addresses Icon Smoothing Runtimes (#80171)

## About The Pull Request

Noticed this in the runtime logs on Terry:

```txt
[2023-12-07 02:30:12.334] RUNTIME: runtime error: /obj/structure/table/glass called smooth_icon() without being on a z-level
 - proc name: smooth icon (/atom/proc/smooth_icon)
 -   source file: code/__HELPERS/icon_smoothing.dm,172
 -   usr: null
 -   src: the glass table (/obj/structure/table/glass)
 -   src.loc: null
 -   call stack:
 - the glass table (/obj/structure/table/glass): smooth icon()
 - the glass table (/obj/structure/table/glass): smooth icon()
 - Icon Smoothing (/datum/controller/subsystem/icon_smooth): fire(0)
 - Icon Smoothing (/datum/controller/subsystem/icon_smooth): ignite(0)
 - Master (/datum/controller/master): RunQueue()
 - Master (/datum/controller/master): Loop(2)
 - Master (/datum/controller/master): StartProcessing(0)
```

Glass tables, on their qdeletion (which occurs when someone breaks one
by standing on it), call `QUEUE_SMOOTH_NEIGHBORS()`, which invokes the
smooth on potentially all other glass tables it's merged to. However,
since this is a queueing process that we halt if the MC is choked out or
we're overtiming elsewhere, it's possible that the queued object
`qdel()`s (like if someone is spamming throwing people on 2x1 glass
tables) between fires of `SSicon_smooth`.

Instead of doing a crash on a null z-level, let's check if we're
qdeleted first. It is not unreasonable to just simply early-return
because it is always possible that things just get qdeleted while
`SSicon_smooth` sleeps/postpones work when the server is crunching and
munching cpu time.
## Changelog
No affect to players.

* Addresses Icon Smoothing Runtimes

---------

Co-authored-by: san7890 <the@san7890.com>
2023-12-08 05:10:59 -05:00

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//generic (by snowflake) tile smoothing code; smooth your icons with this!
/*
Each tile is divided in 4 corners, each corner has an appearance associated to it; the tile is then overlayed by these 4 appearances
To use this, just set your atom's 'smoothing_flags' var to 1. If your atom can be moved/unanchored, set its 'can_be_unanchored' var to 1.
If you don't want your atom's icon to smooth with anything but atoms of the same type, set the list 'canSmoothWith' to null;
Otherwise, put all the smoothing groups you want the atom icon to smooth with in 'canSmoothWith', including the group of the atom itself.
Smoothing groups are just shared flags between objects. If one of the 'canSmoothWith' of A matches one of the `smoothing_groups` of B, then A will smooth with B.
Each atom has its own icon file with all the possible corner states. See 'smooth_wall.dmi' for a template.
DIAGONAL SMOOTHING INSTRUCTIONS
To make your atom smooth diagonally you need all the proper icon states (see 'smooth_wall.dmi' for a template) and
to add the 'SMOOTH_DIAGONAL_CORNERS' flag to the atom's smoothing_flags var (in addition to either SMOOTH_TRUE or SMOOTH_MORE).
For turfs, what appears under the diagonal corners depends on the turf that was in the same position previously: if you make a wall on
a plating floor, you will see plating under the diagonal wall corner, if it was space, you will see space.
If you wish to map a diagonal wall corner with a fixed underlay, you must configure the turf's 'fixed_underlay' list var, like so:
fixed_underlay = list("icon"='icon_file.dmi', "icon_state"="iconstatename")
A non null 'fixed_underlay' list var will skip copying the previous turf appearance and always use the list. If the list is
not set properly, the underlay will default to regular floor plating.
To see an example of a diagonal wall, see '/turf/closed/wall/mineral/titanium' and its subtypes.
*/
#define NO_ADJ_FOUND 0
#define ADJ_FOUND 1
#define NULLTURF_BORDER 2
GLOBAL_LIST_INIT(adjacent_direction_lookup, generate_adjacent_directions())
/* Attempting to mirror the below
* Each 3x3 grid is a tile, with each X representing a direction a border object could be in IN said grid
* Directions marked with A are acceptable smoothing targets, M is the example direction
* The example given here is of a northfacing border object
xxx AxA xxx
xxx AxA xxx
xxx AxA xxx
AAA MMM AAA
xxx AxA xxx
xxx AxA xxx
xxx xxx xxx
xxx xxx xxx
xxx xxx xxx
*/
/// Encodes connectivity between border objects
/// Returns a list accessable by a border object's dir, the direction between it and a target, and a target
/// Said list will return the direction the two objects connect, if any exists (if the target isn't a border object and the direction is fine, return the inverse of the direction in use)
/proc/generate_adjacent_directions()
// Have to hold all conventional dir pairs, so we size to the largest
// We don't HAVE diagonal border objects, so I'm gonna pretend they'll never exist
// You might be like, lemon, can't we use GLOB.cardinals/GLOB.alldirs here
// No, they aren't loaded yet. life is pain
var/list/cardinals = list(NORTH, SOUTH, EAST, WEST)
var/list/alldirs = cardinals + list(NORTH|EAST, SOUTH|EAST, NORTH|WEST, SOUTH|WEST)
var/largest_cardinal = max(cardinals)
var/largest_dir = max(alldirs)
var/list/direction_map = new /list(largest_cardinal)
for(var/dir in cardinals)
var/left = turn(dir, 90)
var/right = turn(dir, -90)
var/opposite = REVERSE_DIR(dir)
// Need to encode diagonals here because it's possible, even if it is always false
var/list/acceptable_adjacents = new /list(largest_dir)
// Alright, what directions are acceptable to us
for(var/connectable_dir in (cardinals + NONE))
// And what border objects INSIDE those directions are alright
var/list/smoothable_dirs = new /list(largest_cardinal + 1) // + 1 because we need to provide space for NONE to be a valid index
// None is fine, we want to smooth with things on our own turf
// We'll do the two dirs to our left and right
// They connect.. "below" us and on their side
if(connectable_dir == NONE)
smoothable_dirs[left] = dir_to_junction(opposite | left)
smoothable_dirs[right] = dir_to_junction(opposite | right)
// If it's to our right or left we'll include just the dir matching ours
// Left edge touches only our left side, and so on
else if (connectable_dir == left)
smoothable_dirs[dir] = left
else if (connectable_dir == right)
smoothable_dirs[dir] = right
// If it's straight on we'll include our direction as a link
// Then include the two edges on the other side as diagonals
else if(connectable_dir == dir)
smoothable_dirs[opposite] = dir
smoothable_dirs[left] = dir_to_junction(dir | left)
smoothable_dirs[right] = dir_to_junction(dir | right)
// otherwise, go HOME, I don't want to encode anything for you
else
continue
acceptable_adjacents[connectable_dir + 1] = smoothable_dirs
direction_map[dir] = acceptable_adjacents
return direction_map
/// Are two atoms border adjacent, takes a border object, something to compare against, and the direction between A and B
/// Returns the way in which the first thing is adjacent to the second
#define CAN_DIAGONAL_SMOOTH(border_obj, target, direction) (\
(target.smoothing_flags & SMOOTH_BORDER_OBJECT) ? \
GLOB.adjacent_direction_lookup[border_obj.dir][direction + 1]?[target.dir] : \
(GLOB.adjacent_direction_lookup[border_obj.dir][direction + 1]) ? REVERSE_DIR(direction) : NONE \
)
#define DEFAULT_UNDERLAY_ICON 'icons/turf/floors.dmi'
#define DEFAULT_UNDERLAY_ICON_STATE "plating"
///Scans all adjacent turfs to find targets to smooth with.
/atom/proc/calculate_adjacencies()
. = NONE
if(!loc)
return
for(var/direction in GLOB.cardinals)
switch(find_type_in_direction(direction))
if(NULLTURF_BORDER)
if((smoothing_flags & SMOOTH_BORDER))
. |= direction //BYOND and smooth dirs are the same for cardinals
if(ADJ_FOUND)
. |= direction //BYOND and smooth dirs are the same for cardinals
if(. & NORTH_JUNCTION)
if(. & WEST_JUNCTION)
switch(find_type_in_direction(NORTHWEST))
if(NULLTURF_BORDER)
if((smoothing_flags & SMOOTH_BORDER))
. |= NORTHWEST_JUNCTION
if(ADJ_FOUND)
. |= NORTHWEST_JUNCTION
if(. & EAST_JUNCTION)
switch(find_type_in_direction(NORTHEAST))
if(NULLTURF_BORDER)
if((smoothing_flags & SMOOTH_BORDER))
. |= NORTHEAST_JUNCTION
if(ADJ_FOUND)
. |= NORTHEAST_JUNCTION
if(. & SOUTH_JUNCTION)
if(. & WEST_JUNCTION)
switch(find_type_in_direction(SOUTHWEST))
if(NULLTURF_BORDER)
if((smoothing_flags & SMOOTH_BORDER))
. |= SOUTHWEST_JUNCTION
if(ADJ_FOUND)
. |= SOUTHWEST_JUNCTION
if(. & EAST_JUNCTION)
switch(find_type_in_direction(SOUTHEAST))
if(NULLTURF_BORDER)
if((smoothing_flags & SMOOTH_BORDER))
. |= SOUTHEAST_JUNCTION
if(ADJ_FOUND)
. |= SOUTHEAST_JUNCTION
/atom/movable/calculate_adjacencies()
if(can_be_unanchored && !anchored)
return NONE
return ..()
///do not use, use QUEUE_SMOOTH(atom)
/atom/proc/smooth_icon()
if(QDELETED(src))
return
smoothing_flags &= ~SMOOTH_QUEUED
flags_1 |= HTML_USE_INITAL_ICON_1
if (!z)
CRASH("[type] called smooth_icon() without being on a z-level")
if(smoothing_flags & SMOOTH_CORNERS)
if(smoothing_flags & SMOOTH_DIAGONAL_CORNERS)
corners_diagonal_smooth(calculate_adjacencies())
else
corners_cardinal_smooth(calculate_adjacencies())
else if(smoothing_flags & SMOOTH_BITMASK)
bitmask_smooth()
else
CRASH("smooth_icon called for [src] with smoothing_flags == [smoothing_flags]")
SEND_SIGNAL(src, COMSIG_ATOM_SMOOTHED_ICON)
// As a rule, movables will most always care about smoothing changes
// Turfs on the other hand, don't, so we don't do the update for THEM unless they explicitly request it
/atom/movable/smooth_icon()
. = ..()
update_appearance(~UPDATE_SMOOTHING)
/atom/proc/corners_diagonal_smooth(adjacencies)
switch(adjacencies)
if(NORTH_JUNCTION|WEST_JUNCTION)
replace_smooth_overlays("d-se","d-se-0")
if(NORTH_JUNCTION|EAST_JUNCTION)
replace_smooth_overlays("d-sw","d-sw-0")
if(SOUTH_JUNCTION|WEST_JUNCTION)
replace_smooth_overlays("d-ne","d-ne-0")
if(SOUTH_JUNCTION|EAST_JUNCTION)
replace_smooth_overlays("d-nw","d-nw-0")
if(NORTH_JUNCTION|WEST_JUNCTION|NORTHWEST_JUNCTION)
replace_smooth_overlays("d-se","d-se-1")
if(NORTH_JUNCTION|EAST_JUNCTION|NORTHEAST_JUNCTION)
replace_smooth_overlays("d-sw","d-sw-1")
if(SOUTH_JUNCTION|WEST_JUNCTION|SOUTHWEST_JUNCTION)
replace_smooth_overlays("d-ne","d-ne-1")
if(SOUTH_JUNCTION|EAST_JUNCTION|SOUTHEAST_JUNCTION)
replace_smooth_overlays("d-nw","d-nw-1")
else
corners_cardinal_smooth(adjacencies)
return FALSE
icon_state = ""
return TRUE
/atom/proc/corners_cardinal_smooth(adjacencies)
var/mutable_appearance/temp_ma
//NW CORNER
var/nw = "1-i"
if((adjacencies & NORTH_JUNCTION) && (adjacencies & WEST_JUNCTION))
if(adjacencies & NORTHWEST_JUNCTION)
nw = "1-f"
else
nw = "1-nw"
else
if(adjacencies & NORTH_JUNCTION)
nw = "1-n"
else if(adjacencies & WEST_JUNCTION)
nw = "1-w"
temp_ma = mutable_appearance(icon, nw)
nw = temp_ma.appearance
//NE CORNER
var/ne = "2-i"
if((adjacencies & NORTH_JUNCTION) && (adjacencies & EAST_JUNCTION))
if(adjacencies & NORTHEAST_JUNCTION)
ne = "2-f"
else
ne = "2-ne"
else
if(adjacencies & NORTH_JUNCTION)
ne = "2-n"
else if(adjacencies & EAST_JUNCTION)
ne = "2-e"
temp_ma = mutable_appearance(icon, ne)
ne = temp_ma.appearance
//SW CORNER
var/sw = "3-i"
if((adjacencies & SOUTH_JUNCTION) && (adjacencies & WEST_JUNCTION))
if(adjacencies & SOUTHWEST_JUNCTION)
sw = "3-f"
else
sw = "3-sw"
else
if(adjacencies & SOUTH_JUNCTION)
sw = "3-s"
else if(adjacencies & WEST_JUNCTION)
sw = "3-w"
temp_ma = mutable_appearance(icon, sw)
sw = temp_ma.appearance
//SE CORNER
var/se = "4-i"
if((adjacencies & SOUTH_JUNCTION) && (adjacencies & EAST_JUNCTION))
if(adjacencies & SOUTHEAST_JUNCTION)
se = "4-f"
else
se = "4-se"
else
if(adjacencies & SOUTH_JUNCTION)
se = "4-s"
else if(adjacencies & EAST_JUNCTION)
se = "4-e"
temp_ma = mutable_appearance(icon, se)
se = temp_ma.appearance
var/list/new_overlays
if(top_left_corner != nw)
cut_overlay(top_left_corner)
top_left_corner = nw
LAZYADD(new_overlays, nw)
if(top_right_corner != ne)
cut_overlay(top_right_corner)
top_right_corner = ne
LAZYADD(new_overlays, ne)
if(bottom_right_corner != sw)
cut_overlay(bottom_right_corner)
bottom_right_corner = sw
LAZYADD(new_overlays, sw)
if(bottom_left_corner != se)
cut_overlay(bottom_left_corner)
bottom_left_corner = se
LAZYADD(new_overlays, se)
if(new_overlays)
add_overlay(new_overlays)
///Scans direction to find targets to smooth with.
/atom/proc/find_type_in_direction(direction)
var/turf/target_turf = get_step(src, direction)
if(!target_turf)
return NULLTURF_BORDER
var/area/target_area = get_area(target_turf)
var/area/source_area = get_area(src)
if((source_area.area_limited_icon_smoothing && !istype(target_area, source_area.area_limited_icon_smoothing)) || (target_area.area_limited_icon_smoothing && !istype(source_area, target_area.area_limited_icon_smoothing)))
return NO_ADJ_FOUND
if(isnull(canSmoothWith)) //special case in which it will only smooth with itself
if(isturf(src))
return (type == target_turf.type) ? ADJ_FOUND : NO_ADJ_FOUND
var/atom/matching_obj = locate(type) in target_turf
return (matching_obj && matching_obj.type == type) ? ADJ_FOUND : NO_ADJ_FOUND
if(!isnull(target_turf.smoothing_groups))
for(var/target in canSmoothWith)
if(!(canSmoothWith[target] & target_turf.smoothing_groups[target]))
continue
return ADJ_FOUND
if(smoothing_flags & SMOOTH_OBJ)
for(var/atom/movable/thing as anything in target_turf)
if(!thing.anchored || isnull(thing.smoothing_groups))
continue
for(var/target in canSmoothWith)
if(!(canSmoothWith[target] & thing.smoothing_groups[target]))
continue
return ADJ_FOUND
return NO_ADJ_FOUND
/**
* Basic smoothing proc. The atom checks for adjacent directions to smooth with and changes the icon_state based on that.
*
* Returns the previous smoothing_junction state so the previous state can be compared with the new one after the proc ends, and see the changes, if any.
*
*/
/atom/proc/bitmask_smooth()
var/new_junction = NONE
// cache for sanic speed
var/canSmoothWith = src.canSmoothWith
var/smooth_border = (smoothing_flags & SMOOTH_BORDER)
var/smooth_obj = (smoothing_flags & SMOOTH_OBJ)
var/border_object_smoothing = (smoothing_flags & SMOOTH_BORDER_OBJECT)
// Did you know you can pass defines into other defines? very handy, lets take advantage of it here to allow 0 cost variation
#define SEARCH_ADJ_IN_DIR(direction, direction_flag, ADJ_FOUND, WORLD_BORDER, BORDER_CHECK) \
do { \
var/turf/neighbor = get_step(src, direction); \
if(neighbor && ##BORDER_CHECK(neighbor, direction)) { \
var/neighbor_smoothing_groups = neighbor.smoothing_groups; \
if(neighbor_smoothing_groups) { \
for(var/target in canSmoothWith) { \
if(canSmoothWith[target] & neighbor_smoothing_groups[target]) { \
##ADJ_FOUND(neighbor, direction, direction_flag); \
} \
} \
} \
if(smooth_obj) { \
for(var/atom/movable/thing as anything in neighbor) { \
var/thing_smoothing_groups = thing.smoothing_groups; \
if(!thing.anchored || isnull(thing_smoothing_groups) || !##BORDER_CHECK(thing, direction)) { \
continue; \
}; \
for(var/target in canSmoothWith) { \
if(canSmoothWith[target] & thing_smoothing_groups[target]) { \
##ADJ_FOUND(thing, direction, direction_flag); \
} \
} \
} \
} \
} else if (smooth_border) { \
##WORLD_BORDER(null, direction, direction_flag); \
} \
} while(FALSE) \
#define BITMASK_FOUND(target, direction, direction_flag) \
new_junction |= direction_flag; \
break set_adj_in_dir; \
/// Check that non border objects use to smooth against border objects
/// Returns true if the smooth is acceptable, FALSE otherwise
#define BITMASK_ON_BORDER_CHECK(target, direction) (!(target.smoothing_flags & SMOOTH_BORDER_OBJECT) || CAN_DIAGONAL_SMOOTH(target, src, REVERSE_DIR(direction)))
#define BORDER_FOUND(target, direction, direction_flag) new_junction |= CAN_DIAGONAL_SMOOTH(src, target, direction)
// Border objects require an object as context, so we need a dummy. I'm sorry
#define WORLD_BORDER_FOUND(target, direction, direction_flag) \
var/static/atom/dummy; \
if(!dummy) { \
dummy = new(); \
dummy.smoothing_flags &= ~SMOOTH_BORDER_OBJECT; \
} \
BORDER_FOUND(dummy, direction, direction_flag);
// Handle handle border on border checks. no-op, we handle this check inside CAN_DIAGONAL_SMOOTH
#define BORDER_ON_BORDER_CHECK(target, direction) (TRUE)
// We're building 2 different types of smoothing searches here
// One for standard bitmask smoothing (We provide a label so our macro can eary exit, as it wants to do)
#define SET_ADJ_IN_DIR(direction, direction_flag) do { set_adj_in_dir: { SEARCH_ADJ_IN_DIR(direction, direction_flag, BITMASK_FOUND, BITMASK_FOUND, BITMASK_ON_BORDER_CHECK) }} while(FALSE)
// and another for border object work (Doesn't early exit because we can hit more then one direction by checking the same turf)
#define SET_BORDER_ADJ_IN_DIR(direction) SEARCH_ADJ_IN_DIR(direction, direction, BORDER_FOUND, WORLD_BORDER_FOUND, BORDER_ON_BORDER_CHECK)
// Let's go over all our cardinals
if(border_object_smoothing)
SET_BORDER_ADJ_IN_DIR(NORTH)
SET_BORDER_ADJ_IN_DIR(SOUTH)
SET_BORDER_ADJ_IN_DIR(EAST)
SET_BORDER_ADJ_IN_DIR(WEST)
// We want to check against stuff in our own turf
SET_BORDER_ADJ_IN_DIR(NONE)
// Border objects don't do diagonals, so GO HOME
set_smoothed_icon_state(new_junction)
return
SET_ADJ_IN_DIR(NORTH, NORTH)
SET_ADJ_IN_DIR(SOUTH, SOUTH)
SET_ADJ_IN_DIR(EAST, EAST)
SET_ADJ_IN_DIR(WEST, WEST)
// If there's nothing going on already
if(!(new_junction & (NORTH|SOUTH)) || !(new_junction & (EAST|WEST)))
set_smoothed_icon_state(new_junction)
return
if(new_junction & NORTH_JUNCTION)
if(new_junction & WEST_JUNCTION)
SET_ADJ_IN_DIR(NORTHWEST, NORTHWEST_JUNCTION)
if(new_junction & EAST_JUNCTION)
SET_ADJ_IN_DIR(NORTHEAST, NORTHEAST_JUNCTION)
if(new_junction & SOUTH_JUNCTION)
if(new_junction & WEST_JUNCTION)
SET_ADJ_IN_DIR(SOUTHWEST, SOUTHWEST_JUNCTION)
if(new_junction & EAST_JUNCTION)
SET_ADJ_IN_DIR(SOUTHEAST, SOUTHEAST_JUNCTION)
set_smoothed_icon_state(new_junction)
#undef SET_BORDER_ADJ_IN_DIR
#undef SET_ADJ_IN_DIR
#undef BORDER_ON_BORDER_CHECK
#undef WORLD_BORDER_FOUND
#undef BORDER_FOUND
#undef BITMASK_ON_BORDER_CHECK
#undef BITMASK_FOUND
#undef SEARCH_ADJ_IN_DIR
///Changes the icon state based on the new junction bitmask
/atom/proc/set_smoothed_icon_state(new_junction)
. = smoothing_junction
smoothing_junction = new_junction
icon_state = "[base_icon_state]-[smoothing_junction]"
/turf/closed/set_smoothed_icon_state(new_junction)
// Avoid calling ..() here to avoid setting icon_state twice, which is expensive given how hot this proc is
var/old_junction = smoothing_junction
smoothing_junction = new_junction
if (!(smoothing_flags & SMOOTH_DIAGONAL_CORNERS))
icon_state = "[base_icon_state]-[smoothing_junction]"
return
switch(new_junction)
if(
NORTH_JUNCTION|WEST_JUNCTION,
NORTH_JUNCTION|EAST_JUNCTION,
SOUTH_JUNCTION|WEST_JUNCTION,
SOUTH_JUNCTION|EAST_JUNCTION,
NORTH_JUNCTION|WEST_JUNCTION|NORTHWEST_JUNCTION,
NORTH_JUNCTION|EAST_JUNCTION|NORTHEAST_JUNCTION,
SOUTH_JUNCTION|WEST_JUNCTION|SOUTHWEST_JUNCTION,
SOUTH_JUNCTION|EAST_JUNCTION|SOUTHEAST_JUNCTION,
)
icon_state = "[base_icon_state]-[smoothing_junction]-d"
if(new_junction == old_junction || fixed_underlay) // Mutable underlays?
return
var/junction_dir = reverse_ndir(smoothing_junction)
var/turned_adjacency = REVERSE_DIR(junction_dir)
var/turf/neighbor_turf = get_step(src, turned_adjacency & (NORTH|SOUTH))
var/mutable_appearance/underlay_appearance = mutable_appearance(layer = TURF_LAYER, offset_spokesman = src, plane = FLOOR_PLANE)
if(!neighbor_turf.get_smooth_underlay_icon(underlay_appearance, src, turned_adjacency))
neighbor_turf = get_step(src, turned_adjacency & (EAST|WEST))
if(!neighbor_turf.get_smooth_underlay_icon(underlay_appearance, src, turned_adjacency))
neighbor_turf = get_step(src, turned_adjacency)
if(!neighbor_turf.get_smooth_underlay_icon(underlay_appearance, src, turned_adjacency))
if(!get_smooth_underlay_icon(underlay_appearance, src, turned_adjacency)) //if all else fails, ask our own turf
underlay_appearance.icon = DEFAULT_UNDERLAY_ICON
underlay_appearance.icon_state = DEFAULT_UNDERLAY_ICON_STATE
underlays += underlay_appearance
else
icon_state = "[base_icon_state]-[smoothing_junction]"
/turf/open/floor/set_smoothed_icon_state(new_junction)
if(broken || burnt)
return
return ..()
//Icon smoothing helpers
/proc/smooth_zlevel(zlevel, now = FALSE)
var/list/away_turfs = Z_TURFS(zlevel)
for(var/turf/turf_to_smooth as anything in away_turfs)
if(turf_to_smooth.smoothing_flags & (SMOOTH_CORNERS|SMOOTH_BITMASK))
if(now)
turf_to_smooth.smooth_icon()
else
QUEUE_SMOOTH(turf_to_smooth)
for(var/atom/movable/movable_to_smooth as anything in turf_to_smooth)
if(movable_to_smooth.smoothing_flags & (SMOOTH_CORNERS|SMOOTH_BITMASK))
if(now)
movable_to_smooth.smooth_icon()
else
QUEUE_SMOOTH(movable_to_smooth)
/atom/proc/clear_smooth_overlays()
cut_overlay(top_left_corner)
top_left_corner = null
cut_overlay(top_right_corner)
top_right_corner = null
cut_overlay(bottom_right_corner)
bottom_right_corner = null
cut_overlay(bottom_left_corner)
bottom_left_corner = null
/// Internal: Takes icon states as text to replace smoothing corner overlays
/atom/proc/replace_smooth_overlays(nw, ne, sw, se)
clear_smooth_overlays()
var/mutable_appearance/temp_ma
temp_ma = mutable_appearance(icon, nw)
nw = temp_ma.appearance
temp_ma = mutable_appearance(icon, ne)
ne = temp_ma.appearance
temp_ma = mutable_appearance(icon, sw)
sw = temp_ma.appearance
temp_ma = mutable_appearance(icon, se)
se = temp_ma.appearance
var/list/new_overlays = list()
top_left_corner = nw
new_overlays += nw
top_right_corner = ne
new_overlays += ne
bottom_left_corner = sw
new_overlays += sw
bottom_right_corner = se
new_overlays += se
add_overlay(new_overlays)
/// Takes a direction, turns it into all the junctions that contain it
/proc/dir_to_all_junctions(dir)
var/handback = NONE
if(dir & NORTH)
handback |= NORTH_JUNCTION | NORTHEAST_JUNCTION | NORTHWEST_JUNCTION
if(dir & SOUTH)
handback |= SOUTH_JUNCTION | SOUTHEAST_JUNCTION | SOUTHWEST_JUNCTION
if(dir & EAST)
handback |= EAST_JUNCTION | SOUTHEAST_JUNCTION | NORTHEAST_JUNCTION
if(dir & WEST)
handback |= WEST_JUNCTION | NORTHWEST_JUNCTION | SOUTHWEST_JUNCTION
return handback
/proc/dir_to_junction(dir)
switch(dir)
if(NORTH)
return NORTH_JUNCTION
if(SOUTH)
return SOUTH_JUNCTION
if(WEST)
return WEST_JUNCTION
if(EAST)
return EAST_JUNCTION
if(NORTHWEST)
return NORTHWEST_JUNCTION
if(NORTHEAST)
return NORTHEAST_JUNCTION
if(SOUTHEAST)
return SOUTHEAST_JUNCTION
if(SOUTHWEST)
return SOUTHWEST_JUNCTION
else
return NONE
/proc/reverse_ndir(ndir)
switch(ndir)
if(NORTH_JUNCTION)
return NORTH
if(SOUTH_JUNCTION)
return SOUTH
if(WEST_JUNCTION)
return WEST
if(EAST_JUNCTION)
return EAST
if(NORTHWEST_JUNCTION)
return NORTHWEST
if(NORTHEAST_JUNCTION)
return NORTHEAST
if(SOUTHEAST_JUNCTION)
return SOUTHEAST
if(SOUTHWEST_JUNCTION)
return SOUTHWEST
if(NORTH_JUNCTION | WEST_JUNCTION)
return NORTHWEST
if(NORTH_JUNCTION | EAST_JUNCTION)
return NORTHEAST
if(SOUTH_JUNCTION | WEST_JUNCTION)
return SOUTHWEST
if(SOUTH_JUNCTION | EAST_JUNCTION)
return SOUTHEAST
if(NORTH_JUNCTION | WEST_JUNCTION | NORTHWEST_JUNCTION)
return NORTHWEST
if(NORTH_JUNCTION | EAST_JUNCTION | NORTHEAST_JUNCTION)
return NORTHEAST
if(SOUTH_JUNCTION | WEST_JUNCTION | SOUTHWEST_JUNCTION)
return SOUTHWEST
if(SOUTH_JUNCTION | EAST_JUNCTION | SOUTHEAST_JUNCTION)
return SOUTHEAST
else
return NONE
//Example smooth wall
/turf/closed/wall/smooth
name = "smooth wall"
icon = 'icons/turf/smooth_wall.dmi'
icon_state = "smooth"
smoothing_flags = SMOOTH_CORNERS|SMOOTH_DIAGONAL_CORNERS|SMOOTH_BORDER
smoothing_groups = null
canSmoothWith = null
#undef NORTH_JUNCTION
#undef SOUTH_JUNCTION
#undef EAST_JUNCTION
#undef WEST_JUNCTION
#undef NORTHEAST_JUNCTION
#undef NORTHWEST_JUNCTION
#undef SOUTHEAST_JUNCTION
#undef SOUTHWEST_JUNCTION
#undef NO_ADJ_FOUND
#undef ADJ_FOUND
#undef NULLTURF_BORDER
#undef DEFAULT_UNDERLAY_ICON
#undef DEFAULT_UNDERLAY_ICON_STATE
#undef CAN_DIAGONAL_SMOOTH
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