From efc48dd8b5c81d79d0fab01edf239e855fd30351 Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 15:58:06 +0100
Subject: [PATCH 1/9] minor armour thickness regeneration

---
 code/modules/mob/living/carbon/human/life.dm | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index 2fbabe0f98db3..e6dc4ffc2ab28 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -81,6 +81,8 @@
 
 		handle_medical_side_effects()
 
+		handle_armour_regen()
+
 		if(!client && !mind)
 			species.handle_npc(src)
 
@@ -1210,4 +1212,11 @@
 /mob/living/carbon/human/handle_flight_failure()
 	if(species.handle_flight_failure(src)) //If our species returns 1, then they're fully handling this.
 		return
-	. = ..()
\ No newline at end of file
+	. = ..()
+
+/mob/living/carbon/human/proc/handle_armour_regen()
+	for(var/i in list(head,wear_suit,w_uniform,shoes,gloves))
+		var/obj/item/clothing/c = i
+		if(istype(c))
+			if(c.armor_thickness < c.armor_thickness_max)
+				c.armor_thickness = min(c.armor_thickness + 0.1,c.armor_thickness_max)
\ No newline at end of file

From 8b1757210ed20c7074188c5baaf6ae6cef858575 Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 17:27:50 +0100
Subject: [PATCH 2/9] less camera shake, more vision fuckery

---
 code/modules/halo/misc/suppression.dm          | 10 +++++-----
 code/modules/projectiles/projectile/bullets.dm |  3 ++-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/code/modules/halo/misc/suppression.dm b/code/modules/halo/misc/suppression.dm
index 96394c85f0aa4..f34e907cab246 100644
--- a/code/modules/halo/misc/suppression.dm
+++ b/code/modules/halo/misc/suppression.dm
@@ -4,22 +4,22 @@
 		return
 	var/seconds_since_suppression = (world.time - time_last_suppressed)/10
 	var/shake_chance = SUPPRESSION_SHAKE_CHANCE
-	var/shake_multiplier = 0
+	var/shake_intensity = 0
 	if(seconds_since_suppression <= 1.5)
 		overlay_fullscreen("suppress",SUPPRESSION_FULLSCREEN_TYPE, SUPPRESS_LARGE)
-		shake_multiplier = 1.5
+		shake_intensity = 1.25
 		//severe supression effects
 	else if(seconds_since_suppression <=4)
 		overlay_fullscreen("suppress",SUPPRESSION_FULLSCREEN_TYPE, SUPPRESS_MID)
-		shake_multiplier = 1
+		shake_intensity = 0.75
 		//medium supression effects
 	else if(seconds_since_suppression <=8)
 		overlay_fullscreen("suppress",SUPPRESSION_FULLSCREEN_TYPE, SUPPRESS_SMALL)
-		shake_multiplier = 0.5
+		shake_intensity = 0.25
 		//low supression effects
 
 	if(prob(shake_chance))
-		shake_camera(src, round(0.25 SECONDS * shake_multiplier), round(1*shake_multiplier))
+		shake_camera(src, round(0.25 SECONDS * shake_multiplier), shake_intensity))
 	if(prob(SUPPRESSION_SCREAM_CHANCE))
 		emote("painscream",AUDIBLE_MESSAGE)
 	time_last_suppressed = world.time
\ No newline at end of file
diff --git a/code/modules/projectiles/projectile/bullets.dm b/code/modules/projectiles/projectile/bullets.dm
index d09b27fe41c8a..485789fdf478d 100644
--- a/code/modules/projectiles/projectile/bullets.dm
+++ b/code/modules/projectiles/projectile/bullets.dm
@@ -15,7 +15,8 @@
 /obj/item/projectile/bullet/on_hit(var/atom/target, var/blocked = 0)
 	if (..(target, blocked))
 		var/mob/living/L = target
-		shake_camera(L, 3, 2)
+		//The Suppression system should be handling screenshakes.
+		//shake_camera(L, 2, 1.5)
 
 /obj/item/projectile/bullet/attack_mob(var/mob/living/target_mob, var/distance, var/miss_modifier)
 	if(penetrating > 0 && damage > 20 && prob(damage))

From 30b22f9243b755d73df6d66703cebb3c38f5e580 Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 17:44:57 +0100
Subject: [PATCH 3/9] diminishing effects for painkillers and speedboosters

and also a rework of adrenaline, including the rush-time
---
 code/__defines/chemistry.dm                   |  7 ++++
 code/game/gamemodes/cult/runes.dm             |  2 +-
 code/modules/halo/chemicals/medicine.dm       | 10 +++---
 .../npc_factions/gear/tallista_spice.dm       |  6 ++--
 code/modules/mob/living/carbon/carbon.dm      |  7 ++++
 .../modules/projectiles/projectile/bullets.dm |  8 ++---
 .../Chemistry-Reagents-Food-Drinks.dm         |  2 +-
 .../Chemistry-Reagents-Medicine.dm            | 36 ++++++++++---------
 8 files changed, 48 insertions(+), 30 deletions(-)

diff --git a/code/__defines/chemistry.dm b/code/__defines/chemistry.dm
index 20f2cac993f6e..7dfa7f4a378aa 100644
--- a/code/__defines/chemistry.dm
+++ b/code/__defines/chemistry.dm
@@ -14,6 +14,13 @@
 
 #define REAGENTS_OVERDOSE 30
 
+//For chemical effects with diminishing returns, how much %wise should we lose for each second the chem is in us?
+#define DIMINISHING_RETURNS_PERSECOND_LOSS 0.006
+//What is the lowest our multiplier can get?
+#define DIMINISHING_RETURNS_CAP 0.4
+
+#define ADRENAL_RUSH_TIME 4 SECONDS
+
 #define CHEM_SYNTH_ENERGY 500 // How much energy does it take to synthesize 1 unit of chemical, in Joules.
 
 // Some on_mob_life() procs check for alien races.
diff --git a/code/game/gamemodes/cult/runes.dm b/code/game/gamemodes/cult/runes.dm
index 33b99f9c5271a..ab8fe0a3f9926 100644
--- a/code/game/gamemodes/cult/runes.dm
+++ b/code/game/gamemodes/cult/runes.dm
@@ -575,7 +575,7 @@
 		M.AdjustStunned(-1)
 		M.AdjustWeakened(-1)
 		M.add_chemical_effect(CE_PAINKILLER, 40)
-		M.add_chemical_effect(CE_SPEEDBOOST, 1)
+		M.add_chemical_effect_diminishing(CE_SPEEDBOOST, 1,dose,metabolism)
 		M.adjustOxyLoss(-10 * removed)
 		M.heal_organ_damage(5 * removed, 5 * removed)
 		M.adjustToxLoss(-5 * removed)
diff --git a/code/modules/halo/chemicals/medicine.dm b/code/modules/halo/chemicals/medicine.dm
index d782f67fb971f..335c817efbee6 100644
--- a/code/modules/halo/chemicals/medicine.dm
+++ b/code/modules/halo/chemicals/medicine.dm
@@ -48,7 +48,7 @@
 	description = "The remnants of biofoam, clogging the person's body and stopping further biofoam usage."
 	reagent_state = LIQUID
 	color = "#edd9c0"
-	metabolism = REM*3
+	metabolism = REM*2
 	overdose = 0
 	scannable = 1
 
@@ -173,7 +173,7 @@
 
 /datum/reagent/hyperzine/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
 	M.adjustToxLoss(0.5)
-	M.add_chemical_effect(CE_SLOWREMOVE, 1)
+	M.add_chemical_effect_diminishing(CE_SLOWREMOVE, 1,dose,metabolism)
 	M.add_chemical_effect(CE_PULSE, 2)
 
 /datum/reagent/hyperzine_concentrated
@@ -192,7 +192,7 @@
 	H.adjustToxLoss(0.75)
 	if(prob(10))
 		H.emote(pick("twitch", "blink_r", "shiver"))
-	H.add_chemical_effect(CE_SPEEDBOOST, 1)
+	H.add_chemical_effect_diminishing(CE_SPEEDBOOST, 1,dose,metabolism)
 	H.add_chemical_effect(CE_PULSE, 2)
 
 /datum/reagent/hyperzine_concentrated/overdose(var/mob/living/carbon/human/H)
@@ -262,7 +262,7 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/ketoprofen/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect(CE_PAINKILLER, 40)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 40,dose,metabolism)
 	M.add_chemical_effect(CE_CRYO, -1)
 
 	var/target = 310 //Target body temperature
@@ -286,7 +286,7 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/polypseudomorphine/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect(CE_PAINKILLER, POLYPSEUDOMORPHINE_PAINKILL)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, POLYPSEUDOMORPHINE_PAINKILL,dose,metabolism)
 	for(var/datum/reagents/reag_hold in list(M.bloodstr,M.ingested,M.touching))
 		reag_hold.remove_reagent(/datum/reagent/hyperzine,100)
 		reag_hold.remove_reagent(/datum/reagent/hyperzine_concentrated,100)
diff --git a/code/modules/halo/factions/npc_factions/gear/tallista_spice.dm b/code/modules/halo/factions/npc_factions/gear/tallista_spice.dm
index 0e84ed6e88a32..c2394008f586d 100644
--- a/code/modules/halo/factions/npc_factions/gear/tallista_spice.dm
+++ b/code/modules/halo/factions/npc_factions/gear/tallista_spice.dm
@@ -26,7 +26,7 @@
 
 /datum/reagent/tallista_spice/affect_ingest(var/mob/living/carbon/M, var/alien, var/removed)
 	..()
-	M.add_chemical_effect(CE_SPEEDBOOST, 1)
-	M.add_chemical_effect(CE_SLOWREMOVE, 1)
+	M.add_chemical_effect_diminishing(CE_SPEEDBOOST, 1,dose,metabolism)
+	M.add_chemical_effect_diminishing(CE_SLOWREMOVE, 2,dose,metabolism)
 	M.add_chemical_effect(CE_PULSE, 0.1)
-	M.add_chemical_effect(CE_PAINKILLER, 50)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 100,dose,metabolism)
diff --git a/code/modules/mob/living/carbon/carbon.dm b/code/modules/mob/living/carbon/carbon.dm
index 8d7403ebda642..7323b2eb9d2cd 100644
--- a/code/modules/mob/living/carbon/carbon.dm
+++ b/code/modules/mob/living/carbon/carbon.dm
@@ -384,6 +384,13 @@
 	else
 		chem_effects[effect] = magnitude
 
+/mob/living/carbon/proc/add_chemical_effect_diminishing(var/effect,var/magnitude,var/dose,var/metab)
+	//This does some preprocessing to lower the final effect by how much has already been processed.
+	//How long has this been processing in us (seconds)?
+	var/dose_time = (dose / metab)/10
+	var/dose_mult = max(1 - (DIMINISHING_RETURNS_PERSECOND_LOSS*dose_time),DIMINISHING_RETURNS_CAP)
+	add_chemical_effect(effect*dose_mult,magnitude)
+
 /mob/living/carbon/proc/add_up_to_chemical_effect(var/effect, var/magnitude = 1)
 	if(effect in chem_effects)
 		chem_effects[effect] = max(magnitude, chem_effects[effect])
diff --git a/code/modules/projectiles/projectile/bullets.dm b/code/modules/projectiles/projectile/bullets.dm
index 485789fdf478d..e06b6a2dfe941 100644
--- a/code/modules/projectiles/projectile/bullets.dm
+++ b/code/modules/projectiles/projectile/bullets.dm
@@ -13,11 +13,11 @@
 	muzzle_type = /obj/effect/projectile/bullet/muzzle
 
 /obj/item/projectile/bullet/on_hit(var/atom/target, var/blocked = 0)
-	if (..(target, blocked))
+/*	if (..(target, blocked))
 		var/mob/living/L = target
-		//The Suppression system should be handling screenshakes.
-		//shake_camera(L, 2, 1.5)
-
+		The Suppression system should be handling screenshakes.
+		shake_camera(L, 2, 1.5)
+*/
 /obj/item/projectile/bullet/attack_mob(var/mob/living/target_mob, var/distance, var/miss_modifier)
 	if(penetrating > 0 && damage > 20 && prob(damage))
 		mob_passthrough_check = 1
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm
index 04e2c081b54c8..b0ca147e22bff 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm
@@ -866,7 +866,7 @@
 
 /datum/reagent/drink/nuka_cola/affect_ingest(var/mob/living/carbon/M, var/alien, var/removed)
 	..()
-	M.add_chemical_effect(CE_SPEEDBOOST, 1)
+	M.add_chemical_effect_diminishing(CE_SPEEDBOOST, 1,dose,metabolism)
 	M.make_jittery(20)
 	M.druggy = max(M.druggy, 30)
 	M.dizziness += 5
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
index 291ace090316a..42b70a39a4641 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
@@ -14,7 +14,7 @@
 /datum/reagent/inaprovaline/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
 	if(alien != IS_DIONA)
 		M.add_chemical_effect(CE_STABLE)
-		M.add_chemical_effect(CE_PAINKILLER, 10)
+		M.add_chemical_effect_diminishing(CE_PAINKILLER, 10,dose,metabolism)
 		M.add_chemical_effect(CE_BRAIN_REGEN, 1) // Slowly repairs brain damage.
 	M.add_chemical_effect(CE_PULSE, -1)
 
@@ -238,7 +238,7 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/paracetamol/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect(CE_PAINKILLER, 25)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 25,dose,metabolism)
 
 /datum/reagent/paracetamol/overdose(var/mob/living/carbon/M, var/alien)
 	..()
@@ -256,7 +256,7 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/tramadol/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect(CE_PAINKILLER, 80)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 80,dose,metabolism)
 
 /datum/reagent/tramadol/overdose(var/mob/living/carbon/M, var/alien)
 	..()
@@ -273,7 +273,7 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/oxycodone/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect(CE_PAINKILLER, 200)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 200,dose,metabolism)
 
 /datum/reagent/oxycodone/overdose(var/mob/living/carbon/M, var/alien)
 	..()
@@ -302,7 +302,7 @@
 	holder.remove_reagent(/datum/reagent/mindbreaker, 5)
 	M.hallucination = max(0, M.hallucination - 10)
 	M.adjustToxLoss(10 * removed) // Reduced from 12 to 10 to make its toxin buildup a little more sane with its slow metabolism.
-	M.add_chemical_effect(CE_PAINKILLER, 20)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 20,dose,metabolism)
 
 /datum/reagent/alkysine
 	name = "Alkysine"
@@ -318,7 +318,7 @@
 /datum/reagent/alkysine/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
 	if(alien == IS_DIONA)
 		return
-	M.add_chemical_effect(CE_PAINKILLER, 10)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 10,dose,metabolism)
 	M.add_chemical_effect(CE_BRAIN_REGEN, 2) // 1 to 2. Heals the brain twice as fast.
 	M.adjustToxLoss(10 * removed) // Removed confusion and drowsiness, added toxin buildup.
 
@@ -701,7 +701,7 @@
 	if(alien == IS_DIONA)
 		return
 
-	M.add_chemical_effect(CE_PAINKILLER, 15)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 15,dose,metabolism)
 	M.add_chemical_effect(CE_ANTIVIRAL, 1)
 
 /datum/reagent/antidexafen/overdose(var/mob/living/carbon/M, var/alien)
@@ -716,25 +716,29 @@
 	color = "#C8A5DC"
 	scannable = 1
 	overdose = 0
+	var/metab_adr = null
 
 /datum/reagent/adrenaline/affect_blood(var/mob/living/carbon/human/M, var/alien, var/removed)
 	if(alien == IS_DIONA)
 		return
-	if(dose > 1)	//not that effective after initial rush
-		M.add_chemical_effect(CE_PAINKILLER, min(10*volume, 20))
-		M.add_chemical_effect(CE_PULSE, 1)
-	else
+	var/break_threshold = M.species.adrenal_break_threshold
+	var/adrenal_break = 0
+	if(!metab_adr)//Caching
+		metab_adr = initial(metabolism) * ADRENAL_RUSH_TIME
+	if(volume > break_threshold)
+		metabolism = adrenal_break/3
+		adrenal_break = 1
+	if(adrenal_break || dose < (metabolism * ADRENAL_RUSH_TIME))	//not that effective after initial rush
 		M.add_chemical_effect(CE_PAINKILLER, min(30*volume, 80))
-		M.add_chemical_effect(CE_PULSE, 1) // 2 -> 1 due to brutes breaking their hearts on this stuff.
+		M.add_chemical_effect(CE_PULSE, 2)
+	else
+		M.add_chemical_effect(CE_PAINKILLER, min(10*volume, 45))
+		M.add_chemical_effect(CE_PULSE, 1)
 	if(dose > 5)
 		M.make_jittery(5)
 	if(volume >= 5 && M.is_asystole())
 		remove_self(5)
 		M.resuscitate()
-	while(volume >= M.species.adrenal_break_threshold)//slightly more than 100/5.
-		M.add_chemical_effect(CE_PAINKILLER,120*(M.species.adrenal_break_threshold/30)) //Reach a threshold of adrenaline, massive painkill effect
-		M.add_chemical_effect(CE_PULSE,2) //But your heart goes mental. 3 -> 2 due to brutes breaking their hearts on this stuff.
-		remove_self(M.species.adrenal_break_threshold) //And your body consumes the adrenaline for that last final push
 
 /datum/reagent/adrenaline/overdose(var/mob/living/carbon/M, var/alien)
 	return

From 928a9a316f3c124d1cc99389045de76c1d40f7d7 Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 17:45:15 +0100
Subject: [PATCH 4/9] suppression less intense, but more obscuring

---
 code/__defines/suppression.dm         | 6 +++---
 code/modules/halo/misc/suppression.dm | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/code/__defines/suppression.dm b/code/__defines/suppression.dm
index 0e047f9e1b992..55cb52b17b2b0 100644
--- a/code/__defines/suppression.dm
+++ b/code/__defines/suppression.dm
@@ -1,5 +1,5 @@
 
-#define SUPPRESS_LARGE 5
-#define SUPPRESS_MID 3
-#define SUPPRESS_SMALL 2
+#define SUPPRESS_LARGE 9
+#define SUPPRESS_MID 6
+#define SUPPRESS_SMALL 3
 #define SUPPRESSION_FULLSCREEN_TYPE /obj/screen/fullscreen/oxy
\ No newline at end of file
diff --git a/code/modules/halo/misc/suppression.dm b/code/modules/halo/misc/suppression.dm
index f34e907cab246..fcd0b8ca05f21 100644
--- a/code/modules/halo/misc/suppression.dm
+++ b/code/modules/halo/misc/suppression.dm
@@ -19,7 +19,7 @@
 		//low supression effects
 
 	if(prob(shake_chance))
-		shake_camera(src, round(0.25 SECONDS * shake_multiplier), shake_intensity))
+		shake_camera(src, round(0.25 SECONDS * shake_intensity), shake_intensity)
 	if(prob(SUPPRESSION_SCREAM_CHANCE))
 		emote("painscream",AUDIBLE_MESSAGE)
 	time_last_suppressed = world.time
\ No newline at end of file

From 80085c5dcf17079aa286cf9475389a4239438b0e Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 17:57:31 +0100
Subject: [PATCH 5/9] oxycodone rebalance

---
 .../Chemistry-Reagents/Chemistry-Reagents-Medicine.dm         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
index 42b70a39a4641..3a43c37ce2602 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
@@ -273,11 +273,11 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/oxycodone/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect_diminishing(CE_PAINKILLER, 200,dose,metabolism)
+	M.add_chemical_effect_diminishing(CE_PAINKILLER, 120,dose,metabolism)
+	M.druggy = max(M.druggy, 10)
 
 /datum/reagent/oxycodone/overdose(var/mob/living/carbon/M, var/alien)
 	..()
-	M.druggy = max(M.druggy, 10)
 	M.hallucination = max(M.hallucination, 3)
 
 /* Other medicine */

From 3af6cfc1dc6ab035c6ffe370a503ec7c2e440047 Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 18:03:29 +0100
Subject: [PATCH 6/9] oxycodone tweaks and reverse diminishing returns

---
 code/modules/mob/living/carbon/carbon.dm             | 12 ++++++++++--
 .../Chemistry-Reagents-Medicine.dm                   |  2 +-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/code/modules/mob/living/carbon/carbon.dm b/code/modules/mob/living/carbon/carbon.dm
index 7323b2eb9d2cd..78b98d65ff2e1 100644
--- a/code/modules/mob/living/carbon/carbon.dm
+++ b/code/modules/mob/living/carbon/carbon.dm
@@ -384,13 +384,21 @@
 	else
 		chem_effects[effect] = magnitude
 
-/mob/living/carbon/proc/add_chemical_effect_diminishing(var/effect,var/magnitude,var/dose,var/metab)
+/mob/living/carbon/proc/add_chemical_effect_diminishing(var/effect,var/magnitude,var/dose,var/metab,var/reverse)
 	//This does some preprocessing to lower the final effect by how much has already been processed.
 	//How long has this been processing in us (seconds)?
 	var/dose_time = (dose / metab)/10
-	var/dose_mult = max(1 - (DIMINISHING_RETURNS_PERSECOND_LOSS*dose_time),DIMINISHING_RETURNS_CAP)
+	var/dose_mult_step1 = DIMINISHING_RETURNS_PERSECOND_LOSS * dose_time
+	var/dose_mult = 1
+	if(reverse)
+		dose_mult = min(dose_mult_step1,1)
+	else
+		dose_mult = max(1 - dose_mult_step1,DIMINISHING_RETURNS_CAP)
 	add_chemical_effect(effect*dose_mult,magnitude)
 
+/mob/living/carbon/proc/add_chemical_effect_diminishing_reverse(var/effect,var/magnitude,var/dose,var/metab)
+	add_chemical_effect_diminishing(effect,magnitude,dose,metab,1)
+
 /mob/living/carbon/proc/add_up_to_chemical_effect(var/effect, var/magnitude = 1)
 	if(effect in chem_effects)
 		chem_effects[effect] = max(magnitude, chem_effects[effect])
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
index 3a43c37ce2602..1fce2784bffac 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
@@ -273,7 +273,7 @@
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/oxycodone/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
-	M.add_chemical_effect_diminishing(CE_PAINKILLER, 120,dose,metabolism)
+	M.add_chemical_effect_diminishing_reverse(CE_PAINKILLER, 120,dose,metabolism)
 	M.druggy = max(M.druggy, 10)
 
 /datum/reagent/oxycodone/overdose(var/mob/living/carbon/M, var/alien)

From 9039403754f0a23c3f8775dd9454e25c9f4e9bde Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 19:30:06 +0100
Subject: [PATCH 7/9] fixes diminishing returns code

---
 code/modules/mob/living/carbon/carbon.dm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/modules/mob/living/carbon/carbon.dm b/code/modules/mob/living/carbon/carbon.dm
index 78b98d65ff2e1..85fd47aa5f9fb 100644
--- a/code/modules/mob/living/carbon/carbon.dm
+++ b/code/modules/mob/living/carbon/carbon.dm
@@ -394,7 +394,7 @@
 		dose_mult = min(dose_mult_step1,1)
 	else
 		dose_mult = max(1 - dose_mult_step1,DIMINISHING_RETURNS_CAP)
-	add_chemical_effect(effect*dose_mult,magnitude)
+	add_chemical_effect(effect,magnitude*dose_mult)
 
 /mob/living/carbon/proc/add_chemical_effect_diminishing_reverse(var/effect,var/magnitude,var/dose,var/metab)
 	add_chemical_effect_diminishing(effect,magnitude,dose,metab,1)

From 5244bd1f073f69e829f840640d9a7ca796a3b8cb Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 19:36:49 +0100
Subject: [PATCH 8/9] adrenaline tweak fix

---
 .../Chemistry-Reagents-Medicine.dm                   | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
index 1fce2784bffac..06f1e8a050b40 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
@@ -234,7 +234,7 @@
 	color = "#C8A5DC"
 	overdose = 60
 	scannable = 1
-	metabolism = 0.02
+	metabolism = REM * 0.5
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/paracetamol/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
@@ -252,7 +252,7 @@
 	color = "#CB68FC"
 	overdose = 30
 	scannable = 1
-	metabolism = 0.02
+	metabolism = REM
 	flags = IGNORE_MOB_SIZE
 
 /datum/reagent/tramadol/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
@@ -717,17 +717,21 @@
 	scannable = 1
 	overdose = 0
 	var/metab_adr = null
+	var/adrenal_break = 0
 
 /datum/reagent/adrenaline/affect_blood(var/mob/living/carbon/human/M, var/alien, var/removed)
 	if(alien == IS_DIONA)
 		return
 	var/break_threshold = M.species.adrenal_break_threshold
-	var/adrenal_break = 0
 	if(!metab_adr)//Caching
 		metab_adr = initial(metabolism) * ADRENAL_RUSH_TIME
 	if(volume > break_threshold)
-		metabolism = adrenal_break/3
+		metabolism = break_threshold*1.5
 		adrenal_break = 1
+	else
+		if(adrenal_break)
+			adrenal_break = 0
+			metabolism = initial(metabolism)
 	if(adrenal_break || dose < (metabolism * ADRENAL_RUSH_TIME))	//not that effective after initial rush
 		M.add_chemical_effect(CE_PAINKILLER, min(30*volume, 80))
 		M.add_chemical_effect(CE_PULSE, 2)

From f9b585d133fd5598a259737d67272ce2db119883 Mon Sep 17 00:00:00 2001
From: X0-11 <X0-11@users.noreply.github.com>
Date: Mon, 20 May 2024 19:47:33 +0100
Subject: [PATCH 9/9] diminishing returns ramp up tweak

---
 code/__defines/chemistry.dm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/__defines/chemistry.dm b/code/__defines/chemistry.dm
index 7dfa7f4a378aa..bd83b394f0023 100644
--- a/code/__defines/chemistry.dm
+++ b/code/__defines/chemistry.dm
@@ -15,7 +15,7 @@
 #define REAGENTS_OVERDOSE 30
 
 //For chemical effects with diminishing returns, how much %wise should we lose for each second the chem is in us?
-#define DIMINISHING_RETURNS_PERSECOND_LOSS 0.006
+#define DIMINISHING_RETURNS_PERSECOND_LOSS 0.007
 //What is the lowest our multiplier can get?
 #define DIMINISHING_RETURNS_CAP 0.4