Ports over Timer Subsystem

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

@@ -51,7 +51,7 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	for(var/i in 1 to number)
 		if(total_effects > 20)
 			return
-		addtimer(src, "generate_effect", 0)
+		INVOKE_ASYNC(src, .proc/generate_effect)
 
 /datum/effect_system/proc/generate_effect()
 	if(holder)
@@ -67,7 +67,7 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	for(var/j in 1 to steps_amt)
 		sleep(5)
 		step(E,direction)
-	addtimer(src, "decrement_total_effect", 20)
+	addtimer(CALLBACK(src, .proc/decrement_total_effect), 20)
 
 /datum/effect_system/proc/decrement_total_effect()
 	total_effects--