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Ports smooth camera shake proc from /tg/ (#21875)

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Ports https://github.com/tgstation/tgstation/pull/60314

Yep, a straight up copy-paste job. Ours was ass and broken and this one
Works and Looks Nice.

Actually having functional screen shaking again, I anticipate we'll get
reports that some shaking fx need tuning, so we'll zap those as they
come in.
This commit is contained in:
Batrachophreno
2026-02-17 05:27:33 -05:00
committed by GitHub
parent 30fad4d1a9
commit b0fa467ee2
2 changed files with 99 additions and 16 deletions
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code/modules/mob/mob_helpers.dm
+41 -16
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@@ -479,23 +479,48 @@ GLOBAL_LIST_INIT(organ_rel_size, list(
p=p+n_mod
return sanitize(t)
#define TICKS_PER_RECOIL_ANIM 2
#define PIXELS_PER_STRENGTH_VAL 16
#define TILES_PER_SECOND 0.7
/// Shake the camera of the person viewing the mob SO REAL!
/// Takes the mob to shake, the time span to shake for, and the amount of tiles we're allowed to shake by in tiles
/// Duration isn't taken as a strict limit, since we don't trust our coders to not make things feel shitty. So it's more like a soft cap.
/proc/shake_camera(mob/M, duration, strength=1)
if(!M || !M.client || duration < 1)
return
var/client/C = M.client
var/oldx = C.pixel_x
var/oldy = C.pixel_y
var/max_x = strength*ICON_SIZE_X
var/max_y = strength*ICON_SIZE_Y
var/min_x = -(strength*ICON_SIZE_X)
var/min_y = -(strength*ICON_SIZE_Y)
/proc/shake_camera(mob/M, duration, strength = 1)
var/current_time = world.time
if(!M || !M.client || (M.shakecamera > current_time)|| M.stat || isEye(M) || isAI(M))
return
if(((M.client.view != world.view) || (M.client.pixel_x != 0) || (M.client.pixel_y != 0))) //to prevent it while zooming, because zoom does not play well with this code
return
M.shakecamera = current_time + max(TICKS_PER_RECOIL_ANIM, duration)
strength = abs(strength)*PIXELS_PER_STRENGTH_VAL
var/steps = min(1, FLOOR(duration/TICKS_PER_RECOIL_ANIM, 1))-1
animate(M.client, pixel_x = rand(-(strength), strength), pixel_y = rand(-(strength), strength), time = TICKS_PER_RECOIL_ANIM, easing = JUMP_EASING|EASE_IN)
if(steps)
for(var/i = 1 to steps)
animate(pixel_x = 0 + rand(-(strength), strength), pixel_y = 0 + rand(-(strength), strength), time = TICKS_PER_RECOIL_ANIM, easing = JUMP_EASING|EASE_IN)
animate(pixel_x = 0, pixel_y = 0, time = TICKS_PER_RECOIL_ANIM)
//How much time to allot for each pixel moved
var/time_scalar = (1 / ICON_SIZE_ALL) * TILES_PER_SECOND
var/last_x = oldx
var/last_y = oldy
var/time_spent = 0
while(time_spent < duration)
//Get a random pos in our box
var/x_pos = rand(min_x, max_x) + oldx
var/y_pos = rand(min_y, max_y) + oldy
//We take the smaller of our two distances so things still have the propencity to feel somewhat jerky
var/time = round(max(min(abs(last_x - x_pos), abs(last_y - y_pos)) * time_scalar, 1))
if (time_spent == 0)
animate(C, pixel_x=x_pos, pixel_y=y_pos, time=time)
else
animate(pixel_x=x_pos, pixel_y=y_pos, time=time)
last_x = x_pos
last_y = y_pos
//We go based on time spent, so there is a chance we'll overshoot our duration. Don't care
time_spent += time
animate(pixel_x=oldx, pixel_y=oldy, time=3)
#undef TILES_PER_SECOND
/proc/findname(msg)
for(var/mob/M in GLOB.mob_list)