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Aurora.3/code/game/gamemodes/technomancer/instability.dm
T
Kano ae68667372 Ports large object transparency from TGMC (#21508) 
Ports https://github.com/tgstation/TerraGov-Marine-Corps/pull/3528
Credit goes to original coders. This PR makes large objects transparent
when something important is behind it.

For now the list of large objects and the things make them transparent
by using this component as follows:

Large objects:

- Trees
- Cranes
- Old shipping containers (new ones doesn't allow anything to go behind
it)

The things make them transparent:
- Mobs
- Carts
- Portable generators
- Nuke

## Images


https://github.com/user-attachments/assets/a4f8ddfc-0fde-4b2d-8bd8-d15e1c6e8e0b

### Asset Licenses
The following assets that **have not** been created by myself are
included in this PR:

| Path | Original Author | License |
| --- | --- | --- |
| code/datums/components/large_object_transparency.dm | nemvar (TGMC) |
AGPLv3 |
2025-10-30 16:57:04 +00:00

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#define TECHNOMANCER_INSTABILITY_DECAY 0.97 // Multiplier for how much instability is lost per Life() tick.
// Numbers closer to 1.0 make instability decay slower. Instability will never decay if it's at 1.0.
// When set to 0.98, it has a half life of roughly 35 Life() ticks, or 1.1 minutes.
// For 0.97, it has a half life of about 23 ticks, or 46 seconds.
// For 0.96, it is 17 ticks, or 34 seconds.
// 0.95 is 14 ticks.
#define TECHNOMANCER_INSTABILITY_MIN_DECAY 0.1 // Minimum removed every Life() tick, always.
#define TECHNOMANCER_INSTABILITY_PRECISION 0.1 // Instability is rounded to this.
#define TECHNOMANCER_INSTABILITY_MIN_GLOW 10 // When above this number, the entity starts glowing, affecting others.
/mob/living
atom_flags = CRITICAL_ATOM
var/instability = 0
var/last_instability = 0 // Used to calculate instability delta.
var/last_instability_event = null // most recent world.time that something bad happened due to instability.
// Proc: adjust_instability()
// Parameters: 0
// Description: Does nothing, because inheritance.
/mob/living/proc/adjust_instability(var/amount)
instability = between(0, round(instability + amount, TECHNOMANCER_INSTABILITY_PRECISION), 200)
// Proc: adjust_instability()
// Parameters: 1 (amount - how much instability to give)
// Description: Adds or subtracts instability to the mob, then updates the hud.
/mob/living/carbon/human/adjust_instability(var/amount)
..()
instability_update_hud()
// Proc: instability_update_hud()
// Parameters: 0
// Description: Sets the HUD icon to the correct state.
/mob/living/carbon/human/proc/instability_update_hud()
if(client && hud_used)
switch(instability)
if(0 to 10)
instability_display.icon_state = "instability-1"
if(10 to 30)
instability_display.icon_state = "instability0"
if(30 to 50)
instability_display.icon_state = "instability1"
if(50 to 100)
instability_display.icon_state = "instability2"
if(100 to 200)
instability_display.icon_state = "instability3"
// Proc: handle_instability()
// Parameters: 0
// Description: Makes instability decay. instability_effects() handles the bad effects for having instability. It will also hold back
// from causing bad effects more than one every ten seconds, to prevent sudden death from angry RNG.
/mob/living/proc/handle_instability()
instability = between(0, round(instability, TECHNOMANCER_INSTABILITY_PRECISION), 200)
last_instability = instability
//This should cushion against really bad luck.
if(instability && last_instability_event < (world.time - 5 SECONDS) && prob(50))
instability_effects()
var/instability_decayed = abs( round(instability * TECHNOMANCER_INSTABILITY_DECAY, TECHNOMANCER_INSTABILITY_PRECISION) - instability )
instability_decayed = max(instability_decayed, TECHNOMANCER_INSTABILITY_MIN_DECAY)
adjust_instability(-instability_decayed)
radiate_instability(instability_decayed)
/mob/living/carbon/human/handle_instability()
..()
instability_update_hud()
/*
[16:18:08] <PsiOmegaDelta> Sparks
[16:18:10] <PsiOmegaDelta> Wormholes
[16:18:16] <PsiOmegaDelta> Random spells firing off on their own
[16:18:22] <PsiOmegaDelta> The possibilities are endless
[16:19:00] <PsiOmegaDelta> Random objects phasing into reality, only to disappear again
[16:19:05] <PsiOmegaDelta> Things briefly duplicating
[16:20:56] <PsiOmegaDelta> Glass cracking, eventually breaking
*/
// Proc: instability_effects()
// Parameters: 0
// Description: Does a variety of bad effects to the entity holding onto the instability, with more severe effects occurring if they have
// a lot of instability.
/mob/living/proc/instability_effects()
last_instability_event = world.time
spawn(1)
var/image/instability_flash = image('icons/obj/spells.dmi',"instability")
overlays |= instability_flash
sleep(4)
overlays.Remove(instability_flash)
qdel(instability_flash)
/proc/safe_blink(atom/movable/AM, var/range = 3)
if(AM.anchored || !AM.loc)
return
var/list/targets = list()
for(var/turf/simulated/T in range(AM, range))
if(T.density || istype(T, /turf/simulated/mineral)) //Don't blink to vacuum or a wall
continue
for(var/atom/movable/stuff in T.contents)
if(stuff.density)
continue
targets.Add(T)
if(!targets.len)
return
var/turf/simulated/destination = null
destination = pick(targets)
if(destination)
if(ismob(AM))
var/mob/living/L = AM
if(L.buckled_to)
L.buckled_to.unbuckle()
spark(AM, 5, 2)
AM.forceMove(destination)
AM.visible_message(SPAN_NOTICE("\The [AM] vanishes!"))
to_chat(AM, SPAN_NOTICE("You suddenly appear somewhere else!"))
return
/mob/living/silicon/instability_effects()
if(instability)
var/rng = 0
..()
switch(instability)
if(1 to 10) //Harmless
return
if(11 to 30) //Minor
rng = rand(0,1)
switch(rng)
if(0)
spark(src, 5, 0)
visible_message(SPAN_WARNING("Electrical sparks manifest from nowhere around \the [src]!"))
if(1)
return
if(31 to 50) //Moderate
rng = rand(0,4)
switch(rng)
if(0)
electrocute_act(instability * 0.3, "unstable energies", 0.75)
if(1)
adjustFireLoss(instability * 0.15) //7.5 burn @ 50 instability
to_chat(src, SPAN_DANGER("Your chassis alerts you to overheating from an unknown external force!"))
if(2)
adjustBruteLoss(instability * 0.15) //7.5 brute @ 50 instability
to_chat(src, SPAN_DANGER("Your chassis makes the sound of metal groaning!"))
if(3)
safe_blink(src, range = 6)
to_chat(src, SPAN_WARNING("You're teleported against your will!"))
if(4)
emp_act(EMP_LIGHT)
if(51 to 100) //Severe
rng = rand(0,3)
switch(rng)
if(0)
electrocute_act(instability * 0.5, "extremely unstable energies", 0.75)
if(1)
emp_act(EMP_LIGHT)
if(2)
adjustFireLoss(instability * 0.3) //30 burn @ 100 instability
to_chat(src, SPAN_DANGER("Your chassis alerts you to extreme overheating from an unknown external force!"))
if(3)
adjustBruteLoss(instability * 0.3) //30 brute @ 100 instability
to_chat(src, SPAN_DANGER("Your chassis makes the sound of metal groaning and tearing!"))
if(101 to 200) //Lethal
rng = rand(0,4)
switch(rng)
if(0)
electrocute_act(instability, "extremely unstable energies", 0.75)
if(1)
emp_act(EMP_HEAVY)
if(2)
adjustFireLoss(instability * 0.4) //40 burn @ 100 instability
to_chat(src, SPAN_DANGER("Your chassis alerts you to extreme overheating from an unknown external force!"))
if(3)
adjustBruteLoss(instability * 0.4) //40 brute @ 100 instability
to_chat(src, SPAN_DANGER("Your chassis makes the sound of metal groaning and tearing!"))
/mob/living/carbon/human/instability_effects()
if(instability)
var/rng = 0
..()
switch(instability)
if(1 to 10) //Harmless
return
if(10 to 30) //Minor
rng = rand(0,1)
switch(rng)
if(0)
spark(src, 5, 0)
visible_message(SPAN_WARNING("Electrical sparks manifest from nowhere around \the [src]!"))
if(1)
return
if(30 to 50) //Moderate
rng = rand(0,8)
switch(rng)
if(0)
apply_damage(instability * 0.3, DAMAGE_PAIN)
if(1)
return
if(2)
if(can_feel_pain())
apply_damage(instability * 0.3, DAMAGE_PAIN)
to_chat(src, SPAN_DANGER("You feel a sharp pain!"))
if(3)
apply_effect(instability * 0.3, EYE_BLUR)
to_chat(src, SPAN_DANGER("Your eyes start to get cloudy!"))
if(4)
electrocute_act(instability * 0.3, "unstable energies")
if(5)
adjustFireLoss(instability * 0.15) //7.5 burn @ 50 instability
to_chat(src, SPAN_DANGER("You feel your skin burn!"))
if(6)
adjustBruteLoss(instability * 0.15) //7.5 brute @ 50 instability
to_chat(src, SPAN_DANGER("You feel a sharp pain as an unseen force harms your body!"))
if(7)
adjustToxLoss(instability * 0.15) //7.5 tox @ 50 instability
if(8)
safe_blink(src, range = 6)
to_chat(src, SPAN_WARNING("You're teleported against your will!"))
if(50 to 100) //Severe
rng = rand(0,8)
switch(rng)
if(0)
apply_damage(instability * 0.2, DAMAGE_RADIATION)
if(1)
return
if(2)
if(can_feel_pain())
apply_damage(instability * 0.7, DAMAGE_PAIN)
to_chat(src, SPAN_DANGER("You feel an extremely agonizing pain from all over your body!"))
if(3)
apply_effect(instability * 0.5, EYE_BLUR)
to_chat(src, SPAN_DANGER("Your eyes start to get cloudy!"))
if(4)
electrocute_act(instability * 0.5, "extremely unstable energies")
if(5)
fire_act()
to_chat(src, SPAN_DANGER("You spontaneously combust!"))
if(6)
adjustCloneLoss(instability * 0.05) //5 cloneloss @ 100 instability
to_chat(src, SPAN_DANGER("You feel your body slowly degenerate."))
if(100 to 200) //Lethal
rng = rand(0,7)
switch(rng)
if(0)
apply_damage(instability, DAMAGE_RADIATION, damage_flags = DAMAGE_FLAG_DISPERSED)
if(1)
visible_message(SPAN_WARNING("\The [src] suddenly collapses!"),
SPAN_DANGER("You suddenly feel very light-headed, and faint!"))
Paralyse(instability * 0.1)
if(2)
if(can_feel_pain())
apply_damage(instability, DAMAGE_PAIN)
to_chat(src, SPAN_DANGER("You feel an extremely agonizing pain from all over your body!"))
if(3)
apply_effect(instability, EYE_BLUR)
to_chat(src, SPAN_DANGER("Your eyes start to get cloudy!"))
if(4)
electrocute_act(instability, "extremely unstable energies")
if(5)
fire_act()
to_chat(src, SPAN_DANGER("You spontaneously combust!"))
if(6)
adjustCloneLoss(instability * 0.10) //5 cloneloss @ 100 instability
to_chat(src, SPAN_DANGER("You feel your body slowly degenerate."))
/mob/living/proc/radiate_instability(amount)
var/distance = round(sqrt(instability / 2))
if(instability < TECHNOMANCER_INSTABILITY_MIN_GLOW)
distance = 0
if(distance)
for(var/mob/living/L in range(src, distance) )
if(L == src) // This instability is radiating away from them, so don't include them.
continue
var/radius = max(get_dist(L, src), 1)
// People next to the source take all of the radiated amount. Further distance decreases the amount absorbed.
var/outgoing_instability = (amount) * ( 1 / (radius**2) )
L.receive_radiated_instability(outgoing_instability)
// This should only be used for EXTERNAL sources of instability, such as from someone or something glowing.
/mob/living/proc/receive_radiated_instability(amount)
// Energy armor like from the AMI RIG can protect from this.
var/armor_ratio = get_blocked_ratio(BP_CHEST, DAMAGE_BURN, damage = 40)
amount = amount * armor_ratio
if(amount && prob(10))
if(isSynthetic())
to_chat(src, SPAN_CULT("<font size='4'>Warning: Anomalous field detected.</font>"))
else
to_chat(src, SPAN_CULT("<font size='4'>The purple glow makes you feel strange...</font>"))
adjust_instability(amount)
#undef TECHNOMANCER_INSTABILITY_DECAY
#undef TECHNOMANCER_INSTABILITY_MIN_DECAY
#undef TECHNOMANCER_INSTABILITY_PRECISION
#undef TECHNOMANCER_INSTABILITY_MIN_GLOW
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