add defines for damage flags

code/modules/projectiles/guns/alien.dm

@@ -69,7 +69,7 @@
 	icon_state = "particle"
 	damage = 60
 	damage_type = BRUTE
-	flag = "bullet"
+	flag = BULLET
 	pass_flags = PASSTABLE | PASSGLASS | PASSGRILLE
 
 	weaken = 5

code/modules/projectiles/guns/energy/kinetic_accelerator.dm

@@ -190,7 +190,7 @@
 	icon_state = null
 	damage = 40
 	damage_type = BRUTE
-	flag = "bomb"
+	flag = BOMB
 	range = 3
 
 	var/pressure_decrease_active = FALSE

code/modules/projectiles/projectile.dm

@@ -35,7 +35,7 @@
 	var/tile_dropoff_s = 0	//same as above but for stamina
 	var/damage_type = BRUTE //BRUTE, BURN, TOX, OXY, CLONE are the only things that should be in here
 	var/nodamage = FALSE //Determines if the projectile will skip any damage inflictions
-	var/flag = "bullet" //Defines what armor to use when it hits things.  Must be set to bullet, laser, energy,or bomb	//Cael - bio and rad are also valid
+	var/flag = BULLET //Defines what armor to use when it hits things.  Must be set to bullet, laser, energy,or bomb	//Cael - bio and rad are also valid
 	var/projectile_type = "/obj/item/projectile"
 	var/range = 50 //This will de-increment every step. When 0, it will delete the projectile.
 	var/is_reflectable = FALSE // Can it be reflected or not?