Implement neutral mob mechanics and partial implement of zombie pigmen

mods/ENTITIES/mcl_mobs/api/api.lua

@@ -347,6 +347,7 @@ function mobs:register_mob(name, def)
 		ignited_by_sunlight = def.ignited_by_sunlight or false,
 		eye_height = def.eye_height or 1.5,
 		defuse_reach = def.defuse_reach or 4,
+		hostile_cooldown = def.hostile_cooldown or 15,
 		-- End of MCL2 extensions
 
 		on_spawn = def.on_spawn,

mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua

@@ -571,10 +571,11 @@ mobs.mob_step = function(self, dtime)
 		return false
 	end
 
+	local attacking = nil
 
 	if self.hostile then
 		--true for line_of_sight is debug
-		local attacking = mobs.detect_closest_player_within_radius(self,true,self.view_range,self.eye_height)
+		attacking = mobs.detect_closest_player_within_radius(self,true,self.view_range,self.eye_height)
 
 		--go get the closest player ROAR >:O
 		if attacking then
@@ -599,6 +600,17 @@ mobs.mob_step = function(self, dtime)
 		end
 	end
 
+	--count down hostile cooldown timer when no players in range
+	if self.neutral and self.hostile and not attacking and self.hostile_cooldown_timer then
+		
+		self.hostile_cooldown_timer = self.hostile_cooldown_timer - dtime
+
+		if self.hostile_cooldown_timer <= 0 then
+			self.hostile = false
+			self.hostile_cooldown_timer = 0
+		end
+	end
+
 
 	--jump only (like slimes)
 	if self.jump_only then

mods/ENTITIES/mcl_mobs/api/mob_functions/interaction.lua

@@ -47,7 +47,7 @@ mobs.mob_punch = function(self, hitter, tflp, tool_capabilities, dir)
 	if self.neutral then
 		self.hostile = true
 		--hostile_cooldown timer is initialized here
-		self.hostile_cooldown_timer 
+		self.hostile_cooldown_timer = self.hostile_cooldown
 	end
 
 

mods/ENTITIES/mobs_mc/creeper.lua

@@ -13,7 +13,6 @@ mobs:register_mob("mobs_mc:creeper", {
 	type = "monster",
 	spawn_class = "hostile",
 	hostile = true,
-	neutral = false,
 	rotate = 270,
 	hp_min = 20,
 	hp_max = 20,

mods/ENTITIES/mobs_mc/zombiepig.lua

@@ -17,6 +17,7 @@ local pigman = {
 	neutral = true,
 	rotate = 270,
 	spawn_class = "passive",
+	hostile_cooldown = 15, --seconds
 	hp_min = 20,
 	hp_max = 20,
 	xp_min = 6,