Makes EMP logs less bad (#93841)

## About The Pull Request

closes #93805

## Why It's Good For The Game

we actually have almost no emp logging at all lol, not even emp chem
reaction, so you barely can track potential griefer?

## Changelog

🆑
admin: EMP logs are improved, additionally chemical EMP reactions are
now logged.
/🆑

code/game/objects/effects/anomalies/anomalies_flux.dm

@@ -44,10 +44,10 @@
 /obj/effect/anomaly/flux/detonate()
 	switch(emp_zap)
 		if(FLUX_EMP)
-			empulse(src, 4, 16)
+			empulse(src, 4, 16, emp_source = src)
 			explosion(src, heavy_impact_range = 1, light_impact_range = 4, flash_range = 6) //Trashes the room a bit, might blow a small hole in the hull.
 		if(FLUX_LIGHT_EMP)
-			empulse(src, 4, 6)
+			empulse(src, 4, 6, emp_source = src)
 			explosion(src, light_impact_range = 3, flash_range = 6)
 		if(FLUX_NO_EMP)
 			new /obj/effect/particle_effect/sparks(loc)

code/game/objects/empulse.dm

@@ -1,13 +1,13 @@
-/proc/empulse(turf/epicenter, heavy_range, light_range, log=0)
+/proc/empulse(turf/epicenter, heavy_range, light_range, emp_source)
 	if(!epicenter)
 		return
 
 	if(!isturf(epicenter))
 		epicenter = get_turf(epicenter.loc)
 
-	if(log)
-		message_admins("EMP with size ([heavy_range], [light_range]) in area [epicenter.loc.name] ")
-		log_game("EMP with size ([heavy_range], [light_range]) in area [epicenter.loc.name] ")
+	if(emp_source)
+		message_admins("EMP with size ([heavy_range], [light_range]) in [ADMIN_VERBOSEJMP(epicenter)], caused by [emp_source] ")
+		log_game("EMP with size ([heavy_range], [light_range]) in [ADMIN_VERBOSEJMP(epicenter)], caused by [emp_source] ")
 
 	if(heavy_range > 1)
 		new /obj/effect/temp_visual/emp/pulse(epicenter)

code/game/objects/items/granters/magic/charge.dm

@@ -17,4 +17,5 @@
 /obj/item/book/granter/action/spell/charge/recoil(mob/living/user)
 	. = ..()
 	to_chat(user,span_warning("[src] suddenly feels very warm!"))
-	empulse(src, 1, 1)
+	empulse(src, 1, 1, emp_source = src)
+

code/game/objects/items/grenades/emgrenade.dm

@@ -8,7 +8,6 @@
 	. = ..()
 	if(!.)
 		return
-
 	update_mob()
-	empulse(src, 4, 10)
+	empulse(src, 4, 10, emp_source = src)
 	qdel(src)

code/game/objects/items/implants/implant_misc.dm

@@ -20,7 +20,7 @@
 /obj/item/implant/emp/activate()
 	. = ..()
 	uses--
-	empulse(imp_in, 3, 5)
+	empulse(imp_in, 3, 5, emp_source = src)
 	if(!uses)
 		qdel(src)
 

code/modules/antagonists/changeling/powers/shriek.dm

@@ -44,7 +44,7 @@
 	if(user.movement_type & VENTCRAWLING)
 		user.balloon_alert(user, "can't shriek in pipes!")
 		return FALSE
-	empulse(get_turf(user), 2, 5, 1)
+	empulse(get_turf(user), 2, 5, 1, emp_source = src)
 	for(var/obj/machinery/light/L in range(5, usr))
 		L.on = TRUE
 		L.break_light_tube()

code/modules/antagonists/cult/blood_magic.dm

@@ -183,7 +183,7 @@
 	owner.whisper(invocation, language = /datum/language/common, forced = "cult invocation")
 	owner.visible_message(span_warning("[owner]'s hand flashes a bright blue!"), \
 		span_cult_italic("You speak the cursed words, emitting an EMP blast from your hand."))
-	empulse(owner, 2, 5)
+	empulse(owner, 2, 5, emp_source = src)
 	charges--
 	SSblackbox.record_feedback("tally", "cult_spell_invoke", 1, "[name]")
 	if(charges <= 0)

code/modules/antagonists/cult/runes.dm

@@ -1148,7 +1148,7 @@ GLOBAL_VAR_INIT(narsie_summon_count, 0)
 
 	for(var/mob/living/target in range(src, 3))
 		target.Paralyze(30)
-	empulse(T, 0.42*(intensity), 1)
+	empulse(T, 0.42*(intensity), 1, emp_source = src)
 
 	var/list/images = list()
 	for(var/mob/living/M in GLOB.alive_mob_list)

code/modules/antagonists/wizard/grand_ritual/grand_side_effect.dm

@@ -123,7 +123,7 @@
 /datum/grand_side_effect/emp/trigger(potency, turf/ritual_location, mob/invoker)
 	var/heavy = LERP(0, 3, potency/GRAND_RITUAL_FINALE_COUNT)
 	var/light = LERP(3, 6, potency/GRAND_RITUAL_FINALE_COUNT)
-	empulse(ritual_location, heavy, light)
+	empulse(ritual_location, heavy, light, emp_source = src)
 
 /// Swap locations of nearby mobs arbitrarily and confuse them
 /datum/grand_side_effect/translocate

code/modules/atmospherics/machinery/components/fusion/hfr_procs.dm

@@ -560,7 +560,7 @@
 			epicenter = loc,
 			heavy_range = critical ? emp_heavy_size * 2 : emp_heavy_size,
 			light_range = critical ? emp_light_size * 2 : emp_heavy_size,
-			log = TRUE
+			emp_source = src
 			)
 
 	qdel(src)

code/modules/meteors/meteor_types.dm

@@ -376,7 +376,7 @@
 /obj/effect/meteor/emp/meteor_effect()
 	..()
 	playsound(src, 'sound/items/weapons/zapbang.ogg', 100, TRUE, -1)
-	empulse(src, 3, 8)
+	empulse(src, 3, 8, emp_source = src)
 
 //Meaty Ore
 /obj/effect/meteor/meaty

code/modules/mod/modules/modules_ninja.dm

@@ -289,7 +289,7 @@
 
 /obj/item/mod/module/emp_shield/pulse/on_use(mob/activator)
 	playsound(src, 'sound/effects/empulse.ogg', 60, TRUE)
-	empulse(src, heavy_range = 4, light_range = 6)
+	empulse(src, heavy_range = 4, light_range = 6, emp_source = src)
 	drain_power(use_energy_cost)
 
 /// Ninja Status Readout - Like the normal status display (see the base type), but with a clock.

code/modules/projectiles/projectile/bullets/cannonball.dm

@@ -57,7 +57,7 @@
 	damage = 15 //very low
 
 /obj/projectile/bullet/cannonball/emp/on_hit(atom/target, blocked = 0, pierce_hit)
-	empulse(src, 4, 10)
+	empulse(src, 4, 10, emp_source = src)
 	. = ..()
 
 /obj/projectile/bullet/cannonball/biggest_one

code/modules/projectiles/projectile/bullets/sniper.dm

@@ -50,7 +50,7 @@
 	if(issilicon(target)) //also especially good against borgs
 		var/mob/living/silicon/borg_boy = target
 		borg_boy.apply_damage(damage, BRUTE)
-	empulse(target, emp_radius, emp_radius)
+	empulse(target, emp_radius, emp_radius, emp_source = src)
 
 /obj/projectile/bullet/p50/incendiary
 	name =".50 BMG incendiary bullet"

code/modules/projectiles/projectile/special/ion.dm

@@ -9,7 +9,7 @@
 
 /obj/projectile/ion/on_hit(atom/target, blocked = 0, pierce_hit)
 	..()
-	empulse(target, emp_radius, emp_radius)
+	empulse(target, emp_radius, emp_radius, emp_source = src)
 	return BULLET_ACT_HIT
 
 /obj/projectile/ion/weak

code/modules/reagents/chemistry/recipes/pyrotechnics.dm

@@ -212,12 +212,19 @@
 
 /datum/chemical_reaction/emp_pulse/on_reaction(datum/reagents/holder, datum/equilibrium/reaction, created_volume)
 	//pretending this reaction took two ingredients and not three for its effects
+	var/turf/turf = get_turf(holder.my_atom)
 	var/two_thirds = created_volume / 1.5
 	var/location = get_turf(holder.my_atom)
+	var/lastkey = holder.my_atom.fingerprintslast
 	// 100 created volume = 4 heavy range & 7 light range. A few tiles smaller than traitor EMP grandes.
 	// 200 created volume = 8 heavy range & 14 light range. 4 tiles larger than traitor EMP grenades.
-	empulse(location, round(two_thirds / 12), round(two_thirds / 7), 1)
+	empulse(location, round(two_thirds / 12), round(two_thirds / 7), 1, emp_source = src)
 	holder.clear_reagents()
+	if(lastkey)
+		var/mob/toucher = get_mob_by_key(lastkey)
+		toucher.log_message("triggered EMP reaction at [AREACOORD(turf)].", LOG_GAME, log_globally = FALSE)
+	..()
+
 
 /datum/chemical_reaction/beesplosion
 	required_reagents = list(/datum/reagent/consumable/honey = 1, /datum/reagent/medicine/strange_reagent = 1, /datum/reagent/uranium/radium = 1)

code/modules/reagents/chemistry/recipes/slime_extracts.dm

@@ -264,7 +264,12 @@
 	reaction_tags = REACTION_TAG_EASY | REACTION_TAG_SLIME | REACTION_TAG_DANGEROUS
 
 /datum/chemical_reaction/slime/slimeoverload/on_reaction(datum/reagents/holder, datum/equilibrium/reaction, created_volume)
-	empulse(get_turf(holder.my_atom), 3, 5)
+	var/turf/turf = get_turf(holder.my_atom)
+	var/lastkey = holder.my_atom.fingerprintslast
+	empulse(get_turf(holder.my_atom), 3, 5, emp_source = src)
+	if(lastkey)
+		var/mob/toucher = get_mob_by_key(lastkey)
+		toucher.log_message("triggered EMP reaction at [AREACOORD(turf)].", LOG_GAME, log_globally = FALSE)
 	..()
 
 /datum/chemical_reaction/slime/slimecell

code/modules/research/experimentor.dm

@@ -339,7 +339,7 @@
 			throwSmoke(loc)
 		else if(prob(EFFECT_PROB_MEDIUM * (100 - malfunction_probability_coeff) * 0.01))
 			visible_message(span_warning("[src] melts [exp_on], ionizing the air around it!"))
-			empulse(loc, 4, 6)
+			empulse(loc, 4, 6, emp_source = src)
 			investigate_log("Experimentor has generated an Electromagnetic Pulse.", INVESTIGATE_EXPERIMENTOR)
 			ejectItem(TRUE)
 	////////////////////////////////////////////////////////////////////////////////////////////////

code/modules/research/xenobiology/xenobiology.dm

@@ -325,7 +325,8 @@ GLOBAL_LIST_INIT(slime_extract_auto_activate_reactions, init_slime_auto_activate
 		if(SLIME_ACTIVATE_MAJOR)
 			user.visible_message(span_warning("[user]'s skin starts flashing intermittently..."), span_warning("Your skin starts flashing intermittently..."))
 			if(do_after(user, 2.5 SECONDS, target = user))
-				empulse(user, 1, 2)
+				empulse(user, 1, 2, emp_source = src)
+				user.log_message("triggered EMP using [src] in [AREACOORD(src)]", LOG_GAME)
 				user.visible_message(span_warning("[user]'s skin flashes!"), span_warning("Your skin flashes as you emit an electromagnetic pulse!"))
 				return 600
 

code/modules/spells/spell_types/self/disable_tech.dm

@@ -13,7 +13,7 @@
 
 /datum/action/cooldown/spell/emp/cast(atom/cast_on)
 	. = ..()
-	empulse(get_turf(cast_on), emp_heavy, emp_light)
+	empulse(get_turf(cast_on), emp_heavy, emp_light, emp_source = src)
 
 /datum/action/cooldown/spell/emp/disable_tech
 	name = "Disable Tech"

code/modules/vehicles/mecha/mecha_mob_interaction.dm

@@ -154,7 +154,7 @@
 			to_chat(AI, span_danger("ZZUZULU.ERR--ERRR-NEUROLOG-- PERCEP--- DIST-B**@"))
 			for(var/count in 1 to 5)
 				addtimer(CALLBACK(GLOBAL_PROC, GLOBAL_PROC_REF(do_sparks), rand(10, 20), FALSE, AI), count SECONDS)
-			addtimer(CALLBACK(GLOBAL_PROC, GLOBAL_PROC_REF(empulse), get_turf(AI), /*heavy_range = */10, /*light_range = */20), 10 SECONDS)
+			addtimer(CALLBACK(GLOBAL_PROC, GLOBAL_PROC_REF(empulse), get_turf(AI), /*heavy_range = */10, /*light_range = */20, AI), 10 SECONDS)
 		return ..()
 	else if(isliving(M))
 		mob_container = M