[READY]] FLIGHTPACKS (AKA cooler, better, and technological wings with a unique gimmick!) (#20860)

* vroom

* wew

* a

* b

* morestuff

* .

* a

* .

* .

* basicsprites+extend/retract

* ...

* .

* thanks travis

* woops

* thankstravisv2

* redundence

* ishouldstopmakingsomanygoddamncommits+empdamage

* stuff

* ..

* ion_trails

* fixes_conflict_1

* fix

* compilesnow

* .

* fuck

* WIP: Multi Step Assembly

* thismightfixitthismightnot

* shoe-attachment

* noselfremoval

* wooops

* tweaksandcrashing

* runtimes

* runtimesfuntimes+crash update 1

* thisprobablywontcompile

* stillwip

* githubPLEASEWORK

* fixes conflicts 3/3

* REFACTORSUNTESTED

* fixingconflicts2

* fixingconflicts3/3

* updates

* stuffs

* ...

* stillWIP

* stufffs

* .

* ..

* runtimesfuntimes2

* stuffs2

* conflictfix

* ...

* fuck

* fix

* bah merge conflicts

* knockback_testing1

* conflictfixing...

* mergeconflicts

* plop

* socloseyetsofar

* tweaksandfixes

* conflicts

* fix

* fixes

* fix

* woops

* woops2

* hotfix

* ...

* flufftextandfixes

* test

* ..

* fix1/2

* stuff

* finallysomeoneteachesmehowtofixthisshit

* FIX

* why

* .

* bitflagsshitflags1

* bitflags-shitflags2

* bitflags-shitflags2

* bitflags_shitflags_4

* autofloating

* minerbuffgetthepun?

* notouchingfloors

* ...

* .

* f l o a t

* kek

* kek

* fixes

* fixes2

* sprites

code/game/objects/effects/effect_system/effects_other.dm

@@ -53,8 +53,14 @@
 	icon_state = "ion_trails"
 	anchored = 1
 
+/obj/effect/particle_effect/ion_trails/flight
+	icon_state = "ion_trails_flight"
+
 /datum/effect_system/trail_follow/ion
 	effect_type = /obj/effect/particle_effect/ion_trails
+	var/fadetype = "ion_fade"
+	var/fade = 1
+	var/nograv_required = 1
 
 /datum/effect_system/trail_follow/ion/start() //Whoever is responsible for this abomination of code should become an hero
 	if(!on)
@@ -66,11 +72,12 @@
 		processing = 0
 		var/turf/T = get_turf(holder)
 		if(T != oldposition)
-			if(!T.has_gravity())
+			if(!T.has_gravity() || !nograv_required)
 				var/obj/effect/particle_effect/ion_trails/I = PoolOrNew(effect_type, oldposition)
-				I.setDir(holder.dir)
-				flick("ion_fade", I)
-				I.icon_state = ""
+				set_dir(I)
+				if(fade)
+					flick(fadetype, I)
+					I.icon_state = ""
 				spawn(20)
 					qdel(I)
 			oldposition = T
@@ -79,7 +86,18 @@
 				processing = 1
 				start()
 
+/datum/effect_system/trail_follow/ion/proc/set_dir(obj/effect/particle_effect/ion_trails/I)
+	I.setDir(holder.dir)
 
+/datum/effect_system/trail_follow/ion/flight
+	effect_type = /obj/effect/particle_effect/ion_trails/flight
+	fadetype = "ion_fade_flight"
+	nograv_required = 0
+
+/datum/effect_system/trail_follow/ion/flight/set_dir(obj/effect/particle_effect/ion_trails/I)
+	if(istype(holder, /obj/item/device/flightpack))
+		var/obj/item/device/flightpack/F = holder
+		I.setDir(F.suit.user.dir)
 
 
 //Reagent-based explosion effect