Ports /vg/'s spell system for the sake of cult porting.

Does offer a much more pleasant basis to work with in the future, if someone wishes to add more spell-like abilities.

code/modules/projectiles/projectile.dm

@@ -51,17 +51,18 @@
 	var/drowsy = 0
 	var/agony = 0
 	var/embed = 0 // whether or not the projectile can embed itself in the mob
-	
-	var/hitscan = 0	// whether the projectile should be hitscan
+
+	var/hitscan = 0		// whether the projectile should be hitscan
+	var/step_delay = 1	// the delay between iterations if not a hitscan projectile
 
 	// effect types to be used
 	var/muzzle_type
 	var/tracer_type
 	var/impact_type
-	
+
 	var/datum/plot_vector/trajectory	// used to plot the path of the projectile
 	var/datum/vector_loc/location		// current location of the projectile in pixel space
-	var/matrix/effect_transform			// matrix to rotate and scale projectile effects - putting it here so it doesn't 
+	var/matrix/effect_transform			// matrix to rotate and scale projectile effects - putting it here so it doesn't
 										//  have to be recreated multiple times
 
 //TODO: make it so this is called more reliably, instead of sometimes by bullet_act() and sometimes not
@@ -113,12 +114,12 @@
 	if(user == target) //Shooting yourself
 		user.bullet_act(src, target_zone)
 		on_impact(user)
-		del(src)
+		qdel(src)
 		return 0
 	if(targloc == curloc) //Shooting something in the same turf
 		target.bullet_act(src, target_zone)
 		on_impact(target)
-		del(src)
+		qdel(src)
 		return 0
 
 	original = target
@@ -256,7 +257,7 @@
 	density = 0
 	invisibility = 101
 
-	del(src)
+	qdel(src)
 	return 1
 
 /obj/item/projectile/CanPass(atom/movable/mover, turf/target, height=0, air_group=0)
@@ -276,19 +277,20 @@
 	spawn while(src)
 		if(kill_count-- < 1)
 			on_impact(src.loc) //for any final impact behaviours
-			del(src)
+			qdel(src)
 		if((!( current ) || loc == current))
 			current = locate(min(max(x + xo, 1), world.maxx), min(max(y + yo, 1), world.maxy), z)
 		if((x == 1 || x == world.maxx || y == 1 || y == world.maxy))
-			del(src)
+			qdel(src)
 			return
 
 		trajectory.increment()	// increment the current location
 		location = trajectory.return_location(location)		// update the locally stored location data
 
 		if(!location)
-			del(src)	// if it's left the world... kill it
+			qdel(src)	// if it's left the world... kill it
 
+		before_move()
 		Move(location.return_turf())
 
 		if(first_step)
@@ -302,14 +304,20 @@
 				if(!(original in permutated))
 					Bump(original)
 
+
 		if(!hitscan)
-			sleep(1)	//add delay between movement iterations if it's not a hitscan weapon
+			sleep(step_delay)	//add delay between movement iterations if it's not a hitscan weapon
+
+/obj/item/projectile/proc/process_step(first_step = 0)
+
+
+/obj/item/projectile/proc/before_move()
 
 /obj/item/projectile/proc/setup_trajectory()
 	// plot the initial trajectory
 	trajectory = new()
 	trajectory.setup(starting, original, pixel_x, pixel_y)
-	
+
 	// generate this now since all visual effects the projectile makes can use it
 	effect_transform = new()
 	effect_transform.Scale(trajectory.return_hypotenuse(), 1)
@@ -321,7 +329,7 @@
 
 	if(ispath(muzzle_type))
 		var/obj/effect/projectile/M = new muzzle_type(get_turf(src))
-		
+
 		if(istype(M))
 			M.set_transform(T)
 			M.pixel_x = location.pixel_x
@@ -331,7 +339,7 @@
 /obj/item/projectile/proc/tracer_effect(var/matrix/M)
 	if(ispath(tracer_type))
 		var/obj/effect/projectile/P = new tracer_type(location.loc)
-		
+
 		if(istype(P))
 			P.set_transform(M)
 			P.pixel_x = location.pixel_x
@@ -341,7 +349,7 @@
 /obj/item/projectile/proc/impact_effect(var/matrix/M)
 	if(ispath(tracer_type))
 		var/obj/effect/projectile/P = new impact_type(location.loc)
-		
+
 		if(istype(P))
 			P.set_transform(M)
 			P.pixel_x = location.pixel_x
@@ -411,5 +419,5 @@
 	trace.pass_flags = pass_flags //And the pass flags to that of the real projectile...
 	trace.firer = user
 	var/output = trace.process() //Test it!
-	del(trace) //No need for it anymore
+	qdel(trace) //No need for it anymore
 	return output //Send it back to the gun!

code/modules/projectiles/projectile/change.dm

@@ -79,8 +79,8 @@
 				A.randomize_appearance_for(H)
 
 		if(new_mob)
-			for (var/obj/effect/proc_holder/spell/S in M.spell_list)
-				new_mob.spell_list += new S.type
+			for (var/spell/S in M.spell_list)
+				new_mob.add_spell(new S.type)
 
 			new_mob.a_intent = "hurt"
 			if(M.mind)