Add some despawning logic (but do not enable despawning yet)

mods/ENTITIES/mobs_mc/bat.lua

@@ -6,6 +6,7 @@ local S, NS = dofile(MP.."/intllib.lua")
 
 mobs:register_mob("mobs_mc:bat", {
 	type = "animal",
+	can_despawn = true,
 	passive = true,
 	hp_min = 6,
 	hp_max = 6,

mods/ENTITIES/mobs_mc/ocelot.lua

@@ -30,6 +30,7 @@ end
 -- Ocelot
 local ocelot = {
 	type = "animal",
+	can_despawn = true,
 	hp_min = 10,
 	hp_max = 10,
 	collisionbox = {-0.3, -0.01, -0.3, 0.3, 0.69, 0.3},
@@ -97,6 +98,7 @@ mobs:register_mob("mobs_mc:ocelot", ocelot)
 -- Cat
 local cat = table.copy(ocelot)
 cat.textures = {{"mobs_mc_cat_black.png"}, {"mobs_mc_cat_red.png"}, {"mobs_mc_cat_siamese.png"}}
+cat.can_despawn = false
 cat.owner = ""
 cat.order = "roam" -- "sit" or "roam"
 cat.owner_loyal = true

mods/ENTITIES/mobs_mc/squid.lua

@@ -10,6 +10,7 @@ local S, NS = dofile(MP.."/intllib.lua")
 
 mobs:register_mob("mobs_mc:squid", {
     type = "animal",
+    can_despawn = true,
     passive = true,
     hp_min = 10,
     hp_max = 10,

mods/ENTITIES/mobs_mc/wolf.lua

@@ -22,7 +22,7 @@ end
 -- Wolf
 local wolf = {
 	type = "animal",
-
+	can_despawn = true,
 	hp_min = 8,
 	hp_max = 8,
 	passive = false,
@@ -123,6 +123,7 @@ end
 
 -- Tamed wolf (aka “dog”)
 local dog = table.copy(wolf)
+dog.can_despawn = false
 dog.passive = true
 dog.hp_min = 20
 dog.hp_max = 20