glowing dm fireball for latest dev

dungeon_master.lua

@@ -78,9 +78,11 @@ mobs:register_arrow("mobs_monster:fireball", {
 	visual_size = {x = 1, y = 1},
 	textures = {"mobs_fireball.png"},
 	velocity = 6,
---	tail = 1,
---	tail_texture = "mobs_fireball.png",
---	tail_size = 10,
+	tail = 1,
+	tail_texture = "mobs_fireball.png",
+	tail_size = 10,
+	glow = 5,
+	expire = 0.1,
 
 	-- direct hit, no fire... just plenty of pain
 	hit_player = function(self, player)

sand_monster.lua

@@ -8,6 +8,7 @@ mobs:register_mob("mobs_monster:sand_monster", {
 	passive = false,
 	attack_type = "dogfight",
 	pathfinding = true,
+	--specific_attack = {"player", "mobs_npc:npc"},
 	reach = 2,
 	damage = 1,
 	hp_min = 4,