Introduce snowball_vulnerable armor group

mods/ENTITIES/mcl_mobs/api.lua

@@ -2876,7 +2876,14 @@ local mob_activate = function(self, staticdata, def, dtime)
 	self.path.stuck_timer = 0 -- if stuck for too long search for path
 
 	-- mob defaults
-	self.object:set_armor_groups({immortal = 1, fleshy = self.armor})
+	local armor
+	if type(self.armor) == "table" then
+		armor = table.copy(self.armor)
+		armor.immortal = 1
+	else
+		armor = {immortal=1, fleshy = self.armor}
+	end
+	self.object:set_armor_groups(armor)
 	self.old_y = self.object:get_pos().y
 	self.old_health = self.health
 	self.sounds.distance = self.sounds.distance or 10

mods/ENTITIES/mcl_mobs/api.txt

@@ -35,8 +35,12 @@ functions needed for the mob to work properly which contains the following:
    'breathes_in_water' If true, mob loses breath when not in water. Otherwise,
                    mob loses breath when inside a node with `drowning` attribute
                    set (default: false).
-   'armor'         holds strength of mob, 100 is normal, lower is more powerful
-                   and needs more hits and better weapons to kill.
+   'armor'         entity armor groups (see lua_api.txt). If table, a list of
+                   armor groups like for entities. If number, set value of
+                   'fleshy' armor group only.
+                   Note: The 'immortal=1' armor group will automatically be added
+                   since this mod handles health and damage manually.
+                   Default: 100 (mob will take full dmg from 'fleshy' hits)
    'passive'       when true allows animals to defend themselves when hit,
                    otherwise they amble onwards.
    'walk_velocity' is the speed that your mob can walk around.

mods/ENTITIES/mobs_mc/blaze.lua

@@ -21,6 +21,7 @@ mobs:register_mob("mobs_mc:blaze", {
 	textures = {
 		{"mobs_mc_blaze.png"},
 	},
+	armor = { fleshy = 100, snowball_vulnerable = 100 },
 	visual_size = {x=3, y=3},
 	sounds = {
 		random = "mobs_mc_blaze_breath",

mods/ITEMS/mcl_throwing/init.lua

@@ -145,7 +145,7 @@ local flying_bobber_ENTITY={
 	objtype="fishing",
 }
 
-local check_object_hit = function(self, pos, mob_damage)
+local check_object_hit = function(self, pos, dmg)
 	for _,object in pairs(minetest.get_objects_inside_radius(pos, 1.5)) do
 
 		local entity = object:get_luaentity()
@@ -158,11 +158,6 @@ local check_object_hit = function(self, pos, mob_damage)
 				self.object:remove()
 				return true
 			elseif entity._cmi_is_mob == true and (self._thrower ~= object) then
-				local dmg = {}
-				if mob_damage then
-					dmg = mob_damage(entity.name)
-				end
-
 				-- FIXME: Knockback is broken
 				object:punch(self.object, 1.0, {
 					full_punch_interval = 1.0,
@@ -193,15 +188,7 @@ local snowball_on_step = function(self, dtime)
 		end
 	end
 
-	local mob_damage = function(mobname)
-		if mobname == "mobs_mc:blaze" then
-			return {fleshy = 3}
-		else
-			return {}
-		end
-	end
-
-	if check_object_hit(self, pos, mob_damage) then
+	if check_object_hit(self, pos, {snowball_vulnerable = 3}) then
 		minetest.sound_play("mcl_throwing_snowball_impact_soft", { pos = self.object:get_pos(), max_hear_distance=16, gain=0.7 })
 		return
 	end