Merge pull request 'Wither finishing & effect fixes' (#3957) from the-real-herowl/MineClone2:wither into master

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/3957

mods/CORE/mcl_util/init.lua

@@ -612,7 +612,7 @@ function mcl_util.deal_damage(target, damage, mcl_reason)
 			end
 			return
 		end
-	end
+	elseif not target:is_player() then return end
 
 	local is_immortal = target:get_armor_groups().immortal or 0
 	if is_immortal>0 then

mods/ENTITIES/mcl_mobs/combat.lua

@@ -21,6 +21,8 @@ local function atan(x)
 	end
 end
 
+mcl_mobs.effect_functions = {}
+
 
 -- check if daytime and also if mob is docile during daylight hours
 function mob_class:day_docile()
@@ -382,7 +384,8 @@ function mob_class:monster_attack()
 		-- find specific mob to attack, failing that attack player/npc/animal
 		if specific_attack(self.specific_attack, name)
 				and (type == "player" or ( type == "npc" and self.attack_npcs )
-				or (type == "animal" and self.attack_animals == true)) then
+				or (type == "animal" and self.attack_animals == true)
+				or (self.extra_hostile and not self.attack_exception(player))) then
 			p = player:get_pos()
 			sp = s
 
@@ -1103,6 +1106,11 @@ function mob_class:do_states_attack (dtime)
 							full_punch_interval = 1.0,
 							damage_groups = {fleshy = self.damage}
 						}, nil)
+						if self.dealt_effect then
+							mcl_mobs.effect_functions[self.dealt_effect.name](
+								self.attack, self.dealt_effect.factor, self.dealt_effect.dur
+							)
+						end
 					end
 				else
 					self.custom_attack(self, p)
@@ -1209,6 +1217,9 @@ function mob_class:do_states_attack (dtime)
 				end
 			end
 		end
+
+	elseif self.attack_type == "custom" and self.attack_state then
+		self.attack_state(self, dtime)
 	else
 
 	end

mods/ENTITIES/mcl_mobs/init.lua

@@ -297,6 +297,7 @@ function mcl_mobs.register_mob(name, def)
 			return false, true, {}
 		end,
 		do_punch = def.do_punch,
+		deal_damage = def.deal_damage,
 		on_breed = def.on_breed,
 		on_grown = def.on_grown,
 		on_pick_up = def.on_pick_up,
@@ -311,8 +312,15 @@ function mcl_mobs.register_mob(name, def)
 
 			return self:mob_activate(staticdata, def, dtime)
 		end,
+		attack_state = def.attack_state,
 		harmed_by_heal = def.harmed_by_heal,
-		on_lightning_strike = def.on_lightning_strike
+		is_boss = def.is_boss,
+		dealt_effect = def.dealt_effect,
+		on_lightning_strike = def.on_lightning_strike,
+		extra_hostile = def.extra_hostile,
+		attack_exception = def.attack_exception or function(p) return false end,
+
+		_spawner = def._spawner,
 	}
 	minetest.register_entity(name, setmetatable(final_def,mcl_mobs.mob_class_meta))
 
@@ -343,9 +351,10 @@ function mcl_mobs.register_arrow(name, def)
 		collisionbox = {0, 0, 0, 0, 0, 0}, -- remove box around arrows
 		timer = 0,
 		switch = 0,
+		_lifetime = def._lifetime or 150,
 		owner_id = def.owner_id,
 		rotate = def.rotate,
-		on_punch = function(self)
+		on_punch = def.on_punch or function(self)
 			local vel = self.object:get_velocity()
 			self.object:set_velocity({x=vel.x * -1, y=vel.y * -1, z=vel.z * -1})
 		end,
@@ -362,7 +371,7 @@ function mcl_mobs.register_arrow(name, def)
 			local pos = self.object:get_pos()
 
 			if self.switch == 0
-			or self.timer > 150
+			or self.timer > self._lifetime
 			or not within_limits(pos, 0) then
 				mcl_burning.extinguish(self.object)
 				self.object:remove();

mods/ENTITIES/mcl_mobs/physics.lua

@@ -681,6 +681,9 @@ function mob_class:do_env_damage()
 	-- don't fall when on ignore, just stand still
 	if self.standing_in == "ignore" then
 		self.object:set_velocity({x = 0, y = 0, z = 0})
+	-- wither rose effect
+	elseif self.standing_in == "mcl_flowers:wither_rose" then
+		mcl_potions.withering_func(self.object, 1, 2)
 	end
 
 	local nodef = minetest.registered_nodes[self.standing_in]

mods/ENTITIES/mcl_wither_spawning/init.lua

@@ -2,6 +2,9 @@ local dim = {"x", "z"}
 
 local modpath = minetest.get_modpath(minetest.get_current_modname())
 
+local anti_troll = minetest.settings:get_bool("wither_anti_troll_measures", false)
+local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false)
+
 local function load_schem(filename)
 	local file = io.open(modpath .. "/schems/" .. filename, "r")
 	local data = minetest.deserialize(file:read())
@@ -9,6 +12,14 @@ local function load_schem(filename)
 	return data
 end
 
+local wboss_overworld = 0
+local wboss_nether = 0
+local wboss_end = 0
+
+local LIM_OVERWORLD = tonumber(minetest.settings:get("wither_cap_overworld")) or 3
+local LIM_NETHER = tonumber(minetest.settings:get("wither_cap_nether")) or 10
+local LIM_END = tonumber(minetest.settings:get("wither_cap_end")) or 5
+
 local wither_spawn_schems = {}
 
 for _, d in pairs(dim) do
@@ -16,8 +27,13 @@ for _, d in pairs(dim) do
 end
 
 local function check_schem(pos, schem)
+	local cn_name
 	for _, n in pairs(schem) do
-		if minetest.get_node(vector.add(pos, n)).name ~= n.name then
+		cn_name = minetest.get_node(vector.add(pos, n)).name
+		if string.find(cn_name, "mcl_heads:wither_skeleton") then
+			cn_name = "mcl_heads:wither_skeleton"
+		end
+		if cn_name ~= n.name then
 			return false
 		end
 	end
@@ -30,14 +46,32 @@ local function remove_schem(pos, schem)
 	end
 end
 
-local function wither_spawn(pos)
+local function check_limit(pos)
+	local dim = mcl_worlds.pos_to_dimension(pos)
+	if dim == "overworld" and wboss_overworld >= LIM_OVERWORLD then return false
+	elseif dim == "end" and wboss_end >= LIM_END then return false
+	elseif wboss_nether >= LIM_NETHER then return false
+	else return true end
+end
+
+local function wither_spawn(pos, player)
+	if peaceful then return end
 	for _, d in pairs(dim) do
 		for i = 0, 2 do
 			local p = vector.add(pos, {x = 0, y = -2, z = 0, [d] = -i})
 			local schem = wither_spawn_schems[d]
-			if check_schem(p, schem) then
+			if check_schem(p, schem) and (not anti_troll or check_limit(pos)) then
 				remove_schem(p, schem)
-				minetest.add_entity(vector.add(p, {x = 0, y = 1, z = 0, [d] = 1}), "mobs_mc:wither")
+				local wither = minetest.add_entity(vector.add(p, {x = 0, y = 1, z = 0, [d] = 1}), "mobs_mc:wither")
+				if not wither then return end
+				local wither_ent = wither:get_luaentity()
+				wither_ent._spawner = player:get_player_name()
+				local dim = mcl_worlds.pos_to_dimension(pos)
+				if dim == "overworld" then
+					wboss_overworld = wboss_overworld + 1
+				elseif dim == "end" then
+					wboss_end = wboss_end + 1
+				else wboss_nether = wboss_nether + 1 end
 				local objects = minetest.get_objects_inside_radius(pos, 20)
 				for _, players in ipairs(objects) do
 					if players:is_player() then
@@ -54,7 +88,19 @@ local old_on_place = wither_head.on_place
 function wither_head.on_place(itemstack, placer, pointed)
 	local n = minetest.get_node(vector.offset(pointed.above,0,-1,0))
 	if n and n.name  == "mcl_nether:soul_sand" then
-		minetest.after(0, wither_spawn, pointed.above)
+		minetest.after(0, wither_spawn, pointed.above, placer)
 	end
 	return old_on_place(itemstack, placer, pointed)
 end
+
+if anti_troll then
+	-- pull wither counts per dimension
+	minetest.register_globalstep(function(dtime)
+		wboss_overworld = mobs_mc.wither_count_overworld
+		wboss_nether = mobs_mc.wither_count_nether
+		wboss_end = mobs_mc.wither_count_end
+		mobs_mc.wither_count_overworld = 0
+		mobs_mc.wither_count_nether = 0
+		mobs_mc.wither_count_end = 0
+	end)
+end

mods/ENTITIES/mobs_mc/ender_dragon.lua

@@ -127,7 +127,7 @@ mcl_mobs.register_mob("mobs_mc:enderdragon", {
 				minetest.set_node(vector.add(self._portal_pos, vector.new(0, 5, 0)), {name = "mcl_end:dragon_egg"})
 			end
 		end
-		
+
 		-- Free The End Advancement
 		for _,players in pairs(minetest.get_objects_inside_radius(pos,64)) do
 			if players:is_player() then
@@ -136,6 +136,7 @@ mcl_mobs.register_mob("mobs_mc:enderdragon", {
 		end
 	end,
 	fire_resistant = true,
+	is_boss = true,
 })
 
 

mods/ENTITIES/mobs_mc/mod.conf

@@ -2,4 +2,4 @@ name = mobs_mc
 author = maikerumine
 description = Adds Minecraft-like monsters and animals.
 depends = mcl_init, mcl_particles, mcl_mobs, mcl_wip, mcl_core, mcl_util
-optional_depends = default, mcl_tnt, mcl_bows, mcl_throwing, mcl_fishing, bones, mesecons_materials, doc_items
+optional_depends = default, mcl_tnt, mcl_bows, mcl_throwing, mcl_fishing, bones, mesecons_materials, doc_items, mcl_worlds

mods/ENTITIES/mobs_mc/skeleton_wither.lua

@@ -96,6 +96,11 @@ mcl_mobs.register_mob("mobs_mc:witherskeleton", {
 	fear_height = 4,
 	harmed_by_heal = true,
 	fire_resistant = true,
+	dealt_effect = {
+		name = "withering",
+		factor = 1,
+		dur = 10,
+	},
 })
 
 --spawn

mods/ENTITIES/mobs_mc/spider.lua

@@ -114,9 +114,7 @@ mcl_mobs.register_mob("mobs_mc:spider", spider)
 local cave_spider = table.copy(spider)
 cave_spider.description = S("Cave Spider")
 cave_spider.textures = { {"mobs_mc_cave_spider.png^(mobs_mc_spider_eyes.png^[makealpha:0,0,0)"} }
--- TODO: Poison damage
--- TODO: Revert damage to 2
-cave_spider.damage = 3 -- damage increased to undo non-existing poison
+cave_spider.damage = 2
 cave_spider.hp_min = 1
 cave_spider.hp_max = 12
 cave_spider.collisionbox = {-0.35, -0.01, -0.35, 0.35, 0.46, 0.35}
@@ -138,6 +136,11 @@ cave_spider.walk_velocity = 1.3
 cave_spider.run_velocity = 3.2
 cave_spider.sounds = table.copy(spider.sounds)
 cave_spider.sounds.base_pitch = 1.25
+cave_spider.dealt_effect = {
+	name = "poison",
+	factor = 2.5,
+	dur = 7,
+}
 mcl_mobs.register_mob("mobs_mc:cave_spider", cave_spider)
 
 

mods/ENTITIES/mobs_mc/witch.lua

@@ -70,6 +70,11 @@ mcl_mobs.register_mob("mobs_mc:witch", {
 	},
 	view_range = 16,
 	fear_height = 4,
+	deal_damage = function(self, damage, mcl_reason)
+		local factor = 1
+		if mcl_reason.type == "magic" then factor = 0.15 end
+		self.health = self.health - factor*damage
+	end,
 })
 
 -- potion projectile (EXPERIMENTAL)

mods/ENTITIES/mobs_mc/wither.lua

@@ -1,14 +1,72 @@
 --MCmobs v0.4
 --maikerumine
+--updated by Herowl
 --made for MC like Survival game
 --License for code WTFPL and otherwise stated in readmes
 
 local S = minetest.get_translator("mobs_mc")
+local mobs_griefing = minetest.settings:get_bool("mobs_griefing", true)
+local follow_spawner = minetest.settings:get_bool("wither_follow_spawner", false)
+local w_strafes = minetest.settings:get_bool("wither_strafes", true)
+local anti_troll = minetest.settings:get_bool("wither_anti_troll_measures", false)
+
+local WITHER_INIT_BOOM = 7
+local WITHER_MELEE_COOLDOWN = 3
+
+local function atan(x)
+	if not x or x ~= x then
+		return 0
+	else
+		return math.atan(x)
+	end
+end
 
 --###################
 --################### WITHER
 --###################
 
+local function wither_unstuck(self)
+	local pos = self.object:get_pos()
+	if mobs_griefing then -- destroy blocks very nearby (basically, colliding with)
+		local col = self.collisionbox
+		local pos1 = vector.offset(pos, col[1], col[2], col[3])
+		local pos2 = vector.offset(pos, col[4], col[5], col[6])
+		for z = pos1.z, pos2.z do for y = pos1.y, pos2.y do for x = pos1.x, pos2.x do
+			local npos = vector.new(x,y,z)
+			local name = minetest.get_node(npos).name
+			if name ~= "air" then
+				local ndef = minetest.registered_nodes[name]
+				if ndef and ndef._mcl_hardness and ndef._mcl_hardness >= 0 then
+					local drops = minetest.get_node_drops(name, "")
+					if minetest.dig_node(npos) then
+						for _, item in ipairs(drops) do
+							if type(item) ~= "string" then
+								item = item:get_name() .. item:get_count()
+							end
+							minetest.add_item(npos, item)
+						end
+					end
+				end
+			end
+		end end end
+	end
+	mcl_mobs.mob_class.safe_boom(self, pos, 2)
+end
+
+local function get_dim_relative_y(pos)
+		if (pos.y >= mcl_vars.mg_realm_barrier_overworld_end_max) then
+			return pos.y
+		elseif (pos.y <= mcl_vars.mg_nether_max + 200) then
+			return (pos.y - mcl_vars.mg_nether_min - 20)
+		else
+			return (pos.y - mcl_vars.mg_end_min - 50)
+		end
+end
+
+mobs_mc.wither_count_overworld = 0
+mobs_mc.wither_count_nether = 0
+mobs_mc.wither_count_end = 0
+
 mcl_mobs.register_mob("mobs_mc:wither", {
 	description = S("Wither"),
 	type = "monster",
@@ -26,11 +84,11 @@ mcl_mobs.register_mob("mobs_mc:wither", {
 		{"mobs_mc_wither.png"},
 	},
 	visual_size = {x=4, y=4},
-	makes_footstep_sound = true,
-	view_range = 16,
+	view_range = 50,
 	fear_height = 4,
 	walk_velocity = 2,
 	run_velocity = 4,
+	strafes = w_strafes,
 	sounds = {
 		shoot_attack = "mobs_mc_ender_dragon_shoot",
 		attack = "mobs_mc_ender_dragon_attack",
@@ -41,9 +99,8 @@ mcl_mobs.register_mob("mobs_mc:wither", {
 	jump_height = 10,
 	fly = true,
 	makes_footstep_sound = false,
-	dogshoot_switch = 1,
-	dogshoot_count_max = 1,
-	attack_animals = true,
+	dogshoot_switch = 1, -- unused
+	dogshoot_count_max = 1, -- unused
 	can_despawn = false,
 	drops = {
 		{name = "mcl_mobitems:nether_star",
@@ -53,13 +110,13 @@ mcl_mobs.register_mob("mobs_mc:wither", {
 	},
 	lava_damage = 0,
 	fire_damage = 0,
-	attack_type = "dogshoot",
+	attack_type = "custom",
 	explosion_strength = 8,
 	dogshoot_stop = true,
 	arrow = "mobs_mc:wither_skull",
 	reach = 5,
-	shoot_interval = 0.5,
-	shoot_offset = -1,
+	shoot_interval = 1,
+	shoot_offset = -0.5,
 	animation = {
 		walk_speed = 12, run_speed = 12, stand_speed = 12,
 		stand_start = 0,		stand_end = 20,
@@ -67,57 +124,377 @@ mcl_mobs.register_mob("mobs_mc:wither", {
 		run_start = 0,		run_end = 20,
 	},
 	harmed_by_heal = true,
-	do_custom = function(self)
+	is_boss = true,
+	extra_hostile = true,
+	attack_exception = function(p)
+		local ent = p:get_luaentity()
+		if p:is_player() then return false end
+		if not ent or not ent.is_mob or ent.harmed_by_heal or string.find(ent.name, "ghast") then return true
+		else return false end
+	end,
+
+	do_custom = function(self, dtime)
+		if self._spawning then
+			-- "loading" bar while spawning
+			if not self._spw_max then self._spw_max = self._spawning end
+			self._spawning = self._spawning - dtime
+			local bardef = {
+				color = "dark_purple",
+				text = "Wither spawning",
+				percentage = math.floor((self._spw_max - self._spawning) / self._spw_max * 100),
+			}
+
+			local pos = self.object:get_pos()
+			for _, player in pairs(minetest.get_connected_players()) do
+				local d = vector.distance(pos, player:get_pos())
+				if d <= 80 then
+					mcl_bossbars.add_bar(player, bardef, true, d)
+				end
+			end
+
+			-- turn around and flash while spawning
+			self.object:set_yaw(self._spawning*10)
+			local factor = math.floor((math.sin(self._spawning*10)+1.5) * 85)
+			local str = minetest.colorspec_to_colorstring({r=factor, g=factor, b=factor})
+			self.object:set_texture_mod("^[brighten^[multiply:"..str)
+
+			-- when fully spawned, explode
+			if self._spawning <= 0 then
+				if mobs_griefing and not minetest.is_protected(pos, "") then
+					mcl_explosions.explode(pos, WITHER_INIT_BOOM, { drop_chance = 1.0 }, self.object)
+				else
+					mcl_mobs.mob_class.safe_boom(self, pos, WITHER_INIT_BOOM)
+				end
+				self.object:set_texture_mod("")
+				self._spawning = nil
+				self._spw_max = nil
+			else
+				return false
+			end
+		end
+
+		-- passive regeneration
+		self._custom_timer = self._custom_timer + dtime
+		if self._custom_timer > 1 then
+			self.health = math.min(self.health + 1, self.hp_max)
+			self._custom_timer = self._custom_timer - 1
+		end
+
+		-- anti-troll measures
+		if anti_troll then
+			if self._spawner then
+				local spawner = minetest.get_player_by_name(self._spawner)
+				if follow_spawner and spawner then
+					self._death_timer = 0
+					local pos = self.object:get_pos()
+					local spw = spawner:get_pos()
+					local dist = vector.distance(pos, spw)
+					if dist > 60 then -- teleport to the player who spawned the wither
+						local R = 10
+						pos.x = spw.x + math.random(-R, R)
+						pos.y = spw.y + math.random(-R, R)
+						pos.z = spw.z + math.random(-R, R)
+						self.object:set_pos(pos)
+					end
+				else -- despawn automatically after set time
+					-- HP changes impact timer: taking damage sets it back
+					self._death_timer = self._death_timer + self.health - self._health_old
+					if self.health == self._health_old then self._death_timer = self._death_timer + dtime end
+					if self._death_timer > 100 then
+						self.object:remove()
+						return false
+					end
+					self._health_old = self.health
+				end
+			end
+			-- count withers per dimension
+			local dim = mcl_worlds.pos_to_dimension(self.object:get_pos())
+			if dim == "overworld" then mobs_mc.wither_count_overworld = mobs_mc.wither_count_overworld + 1
+			elseif dim == "nether" then mobs_mc.wither_count_nether = mobs_mc.wither_count_nether + 1
+			elseif dim == "end" then mobs_mc.wither_count_end = mobs_mc.wither_count_end + 1 end
+		end
+
+		-- update things dependent on HP
+		local rand_factor
 		if self.health < (self.hp_max / 2) then
 			self.base_texture = "mobs_mc_wither_half_health.png"
 			self.fly = false
-			self.object:set_properties({textures={self.base_texture}})
-			self.armor = {undead = 80, fleshy = 80}
+			self._arrow_resistant = true
+			rand_factor = 3
+		else
+			self.base_texture = "mobs_mc_wither.png"
+			self.fly = true
+			self._arrow_resistant = false
+			rand_factor = 10
 		end
+		if not self.attack then
+			local y = get_dim_relative_y(self.object:get_pos())
+			if y > 0 then
+				self.fly = false
+			else
+				self.fly = true
+				local vel = self.object:get_velocity()
+				self.object:set_velocity(vector.new(vel.x, self.walk_velocity, vel.z))
+			end
+		end
+		self.object:set_properties({textures={self.base_texture}})
 		mcl_bossbars.update_boss(self.object, "Wither", "dark_purple")
+		if math.random(1, rand_factor) < 2 then
+			self.arrow = "mobs_mc:wither_skull_strong"
+		else
+			self.arrow = "mobs_mc:wither_skull"
+		end
 	end,
+
+	attack_state = function(self, dtime)
+		local s = self.object:get_pos()
+		local p = self.attack:get_pos() or s
+
+		p.y = p.y - .5
+		s.y = s.y + .5
+
+		local dist = vector.distance(p, s)
+		local vec = {
+			x = p.x - s.x,
+			y = p.y - s.y,
+			z = p.z - s.z
+		}
+
+		local yaw = (atan(vec.z / vec.x) +math.pi/ 2) - self.rotate
+		if p.x > s.x then yaw = yaw +math.pi end
+		yaw = self:set_yaw( yaw, 0, dtime)
+
+		local stay_away_from_player = vector.zero()
+
+		--strafe back and fourth
+
+		--stay away from player so as to shoot them
+		if dist < self.avoid_distance and self.shooter_avoid_enemy then
+			self:set_animation( "shoot")
+			stay_away_from_player=vector.multiply(vector.direction(p, s), 0.33)
+		end
+
+		if self.fly then
+			local vel = self.object:get_velocity()
+			local diff = s.y - p.y
+			local FLY_FACTOR = self.walk_velocity
+			if diff < 10 then
+				self.object:set_velocity({x=vel.x, y= FLY_FACTOR, z=vel.z})
+			elseif diff > 15 then
+				self.object:set_velocity({x=vel.x, y=-FLY_FACTOR, z=vel.z})
+			end
+			for i=1, 15 do
+				if minetest.get_node(vector.offset(s, 0, -i, 0)).name ~= "air" then
+					self.object:set_velocity({x=vel.x, y= FLY_FACTOR,   z=vel.z})
+					break
+				elseif minetest.get_node(vector.offset(s, 0, i, 0)).name ~= "air" then
+					self.object:set_velocity({x=vel.x, y=-FLY_FACTOR/i, z=vel.z})
+					break
+				end
+			end
+		end
+
+		if self.strafes then
+			if not self.strafe_direction then
+				self.strafe_direction = 1.57
+			end
+			if math.random(40) == 1 then
+				self.strafe_direction = self.strafe_direction*-1
+			end
+
+			local dir = vector.rotate_around_axis(vector.direction(s, p), vector.new(0,1,0), self.strafe_direction)
+			local dir2 = vector.multiply(dir, 0.3 * self.walk_velocity)
+
+			if dir2 and stay_away_from_player then
+				self.acc = vector.add(dir2, stay_away_from_player)
+			end
+		else
+			self:set_velocity(0)
+		end
+
+		if dist > 30 then self.acc = vector.add(self.acc, vector.direction(s, p)*0.01) end
+
+		local side_cor = vector.new(0.7*math.cos(yaw), 0, 0.7*math.sin(yaw))
+		local m = self.object:get_pos() -- position of the middle head
+		local sr = self.object:get_pos() + side_cor -- position of side right head
+		local sl = self.object:get_pos() - side_cor -- position of side left head
+		-- height corrections
+		m.y = m.y + self.collisionbox[5]
+		sr.y = sr.y + self.collisionbox[5] - 0.3
+		sl.y = sl.y + self.collisionbox[5] - 0.3
+		local rand_pos = math.random(1,3)
+		if rand_pos == 1 then m = sr
+		elseif rand_pos == 2 then m = sl end
+
+		-- melee attack
+		if not self._melee_timer then
+			self._melee_timer = 0
+		end
+		if self._melee_timer < WITHER_MELEE_COOLDOWN then
+			self._melee_timer = self._melee_timer + dtime
+		else
+			self._melee_timer = 0
+			local pos = table.copy(s)
+			pos.y = pos.y + 2
+			local objs = minetest.get_objects_inside_radius(pos, self.reach)
+			local obj_pos, dist
+			local hit_some = false
+			for n = 1, #objs do
+				objs[n]:punch(objs[n], 1.0, {
+					full_punch_interval = 1.0,
+					damage_groups = {fleshy = 4},
+				}, pos)
+				local ent = objs[n]:get_luaentity()
+				if objs[n]:is_player() or (ent and ent ~= self and (not ent._shooter or ent._shooter ~= self)) then
+					mcl_util.deal_damage(objs[n], 8, {type = "magic"})
+					hit_some = true
+				end
+				mcl_mobs.effect_functions["withering"](objs[n], 0.5, 10)
+			end
+			if hit_some then
+				mcl_mobs.effect(pos, 32, "mcl_particles_soul_fire_flame.png", 5, 10, self.reach, 1, 0)
+			end
+		end
+
+		if dist < self.reach then
+			self.shoot_interval = 3
+		else
+			self.shoot_interval = 1
+		end
+
+		if self.shoot_interval
+				and self.timer > self.shoot_interval
+				and not minetest.raycast(vector.add(m, vector.new(0,self.shoot_offset,0)), vector.add(self.attack:get_pos(), vector.new(0,1.5,0)), false, false):next()
+				and math.random(1, 100) <= 60 then
+
+			self.timer = 0
+			self:set_animation( "shoot")
+
+			-- play shoot attack sound
+			self:mob_sound("shoot_attack")
+
+			-- Shoot arrow
+			if minetest.registered_entities[self.arrow] then
+
+				local arrow, ent
+				local v = 1
+				if not self.shoot_arrow then
+					self.firing = true
+					minetest.after(1, function()
+						self.firing = false
+					end)
+					arrow = minetest.add_entity(m, self.arrow)
+					ent = arrow:get_luaentity()
+					if ent.velocity then
+						v = ent.velocity
+					end
+					ent.switch = 1
+					ent.owner_id = tostring(self.object) -- add unique owner id to arrow
+
+					-- important for mcl_shields
+					ent._shooter = self.object
+					ent._saved_shooter_pos = self.object:get_pos()
+				end
+
+				local amount = (vec.x * vec.x + vec.y * vec.y + vec.z * vec.z) ^ 0.5
+				-- offset makes shoot aim accurate
+				vec.y = vec.y + self.shoot_offset
+				vec.x = vec.x * (v / amount)
+				vec.y = vec.y * (v / amount)
+				vec.z = vec.z * (v / amount)
+				if self.shoot_arrow then
+					vec = vector.normalize(vec)
+					self:shoot_arrow(m, vec)
+				else
+					arrow:set_velocity(vec)
+				end
+			end
+		end
+	end,
+
+	do_punch = function(self, hitter, tflp, tool_capabilities, dir)
+		if self._spawning or hitter == self.object then return false end
+		local ent = hitter:get_luaentity()
+		if ent and self._arrow_resistant and (string.find(ent.name, "arrow") or string.find(ent.name, "rocket")) then return false end
+		wither_unstuck(self)
+		return true
+	end,
+	deal_damage = function(self, damage, mcl_reason)
+		if self._spawning then return end
+		if self._arrow_resistant and mcl_reason.type == "magic" then return end
+		wither_unstuck(self)
+		self.health = self.health - damage
+	end,
+
 	on_spawn = function(self)
 		minetest.sound_play("mobs_mc_wither_spawn", {object=self.object, gain=1.0, max_hear_distance=64})
+		self._custom_timer = 0.0
+		self._death_timer = 0.0
+		self._health_old = self.hp_max
+		self._spawning = 10
+		return true
 	end,
 
 })
 
-local mobs_griefing = minetest.settings:get_bool("mobs_griefing") ~= false
 local wither_rose_soil = { "group:grass_block", "mcl_core:dirt", "mcl_core:coarse_dirt", "mcl_nether:netherrack", "group:soul_block", "mcl_mud:mud", "mcl_moss:moss" }
+local function spawn_wither_rose(obj)
+	local n = minetest.find_node_near(obj:get_pos(),2,wither_rose_soil)
+	if n then
+		local p = vector.offset(n,0,1,0)
+		if minetest.get_node(p).name == "air" then
+			if not ( mobs_griefing and minetest.place_node(p,{name="mcl_flowers:wither_rose"}) ) then
+				minetest.add_item(p,"mcl_flowers:wither_rose")
+			end
+		end
+	end
+end
 
 mcl_mobs.register_arrow("mobs_mc:wither_skull", {
-	visual = "sprite",
-	visual_size = {x = 0.75, y = 0.75},
-	-- TODO: 3D projectile, replace tetxture
-	textures = {"mobs_mc_TEMP_wither_projectile.png"},
-	velocity = 6,
+	visual = "cube",
+	visual_size = {x = 0.3, y = 0.3},
+	textures = {
+		"mobs_mc_wither_projectile.png^[verticalframe:6:0", -- top
+		"mobs_mc_wither_projectile.png^[verticalframe:6:1", -- bottom
+		"mobs_mc_wither_projectile.png^[verticalframe:6:2", -- left
+		"mobs_mc_wither_projectile.png^[verticalframe:6:3", -- right
+		"mobs_mc_wither_projectile.png^[verticalframe:6:4", -- back
+		"mobs_mc_wither_projectile.png^[verticalframe:6:5", -- front
+	},
+	velocity = 7,
+	rotate = 90,
+	_lifetime = 350,
+	on_punch = function(self) end,
 
 	-- direct hit
 	hit_player = function(self, player)
+		local pos = vector.new(self.object:get_pos())
+		mcl_mobs.effect_functions["withering"](player, 0.5, 10)
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 0.5,
 			damage_groups = {fleshy = 8},
 		}, nil)
-		mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1)
+		mcl_mobs.mob_class.boom(self, pos, 1)
+		if player:get_hp() <= 0 then
+			local shooter = self._shooter:get_luaentity()
+			if shooter then shooter.health = shooter.health + 5 end
+			spawn_wither_rose(player)
+		end
 	end,
 
 	hit_mob = function(self, mob)
+		local pos = vector.new(self.object:get_pos())
+		mcl_mobs.effect_functions["withering"](mob, 0.5, 10)
 		mob:punch(self.object, 1.0, {
 			full_punch_interval = 0.5,
 			damage_groups = {fleshy = 8},
 		}, nil)
-		mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1)
+		mcl_mobs.mob_class.boom(self, pos, 1)
 		local l = mob:get_luaentity()
 		if l and l.health - 8 <= 0 then
-			local n = minetest.find_node_near(mob:get_pos(),2,wither_rose_soil)
-			if n then
-				local p = vector.offset(n,0,1,0)
-				if minetest.get_node(p).name == "air" then
-					if not ( mobs_griefing and minetest.place_node(p,{name="mcl_flowers:wither_rose"}) ) then
-						minetest.add_item(p,"mcl_flowers:wither_rose")
-					end
-				end
-			end
+			local shooter = self._shooter:get_luaentity()
+			if shooter then shooter.health = shooter.health + 5 end
+			spawn_wither_rose(mob)
 		end
 	end,
 
@@ -126,10 +503,75 @@ mcl_mobs.register_arrow("mobs_mc:wither_skull", {
 		mcl_mobs.mob_class.boom(self,pos, 1)
 	end
 })
--- TODO: Add blue wither skull
+mcl_mobs.register_arrow("mobs_mc:wither_skull_strong", {
+	visual = "cube",
+	visual_size = {x = 0.35, y = 0.35},
+	textures = {
+		"mobs_mc_wither_projectile_strong.png^[verticalframe:6:0", -- top
+		"mobs_mc_wither_projectile_strong.png^[verticalframe:6:1", -- bottom
+		"mobs_mc_wither_projectile_strong.png^[verticalframe:6:2", -- left
+		"mobs_mc_wither_projectile_strong.png^[verticalframe:6:3", -- right
+		"mobs_mc_wither_projectile_strong.png^[verticalframe:6:4", -- back
+		"mobs_mc_wither_projectile_strong.png^[verticalframe:6:5", -- front
+	},
+	velocity = 4,
+	rotate = 90,
+	_lifetime = 500,
+	on_punch = function(self) end,
+
+	-- direct hit
+	hit_player = function(self, player)
+		local pos = vector.new(self.object:get_pos())
+		mcl_mobs.effect_functions["withering"](player, 0.5, 10)
+		player:punch(self.object, 1.0, {
+			full_punch_interval = 0.5,
+			damage_groups = {fleshy = 12},
+		}, nil)
+		if mobs_griefing and not minetest.is_protected(pos, "") then
+			mcl_explosions.explode(pos, 1, { drop_chance = 1.0, max_blast_resistance = 0, }, self.object)
+		else
+			mcl_mobs.mob_class.safe_boom(self, pos, 1) --need to call it this way bc self is the "arrow" object here
+		end
+		if player:get_hp() <= 0 then
+			local shooter = self._shooter:get_luaentity()
+			if shooter then shooter.health = shooter.health + 5 end
+			spawn_wither_rose(player)
+		end
+	end,
+
+	hit_mob = function(self, mob)
+		local pos = vector.new(self.object:get_pos())
+		mcl_mobs.effect_functions["withering"](mob, 0.5, 10)
+		mob:punch(self.object, 1.0, {
+			full_punch_interval = 0.5,
+			damage_groups = {fleshy = 12},
+		}, nil)
+		if mobs_griefing and not minetest.is_protected(pos, "") then
+			mcl_explosions.explode(pos, 1, { drop_chance = 1.0, max_blast_resistance = 0, }, self.object)
+		else
+			mcl_mobs.mob_class.safe_boom(self, pos, 1) --need to call it this way bc self is the "arrow" object here
+		end
+		local l = mob:get_luaentity()
+		if l and l.health - 8 <= 0 then
+			local shooter = self._shooter:get_luaentity()
+			if shooter then shooter.health = shooter.health + 5 end
+			spawn_wither_rose(mob)
+		end
+	end,
+
+	-- node hit, explode
+	hit_node = function(self, pos, node)
+		if mobs_griefing and not minetest.is_protected(pos, "") then
+			mcl_explosions.explode(pos, 1, { drop_chance = 1.0, max_blast_resistance = 0, }, self.object)
+		else
+			mcl_mobs.mob_class.safe_boom(self, pos, 1) --need to call it this way bc self is the "arrow" object here
+		end
+	end
+})
 
 --Spawn egg
 mcl_mobs.register_egg("mobs_mc:wither", S("Wither"), "#4f4f4f", "#4f4f4f", 0, true)
 
 mcl_wip.register_wip_item("mobs_mc:wither")
 mcl_mobs:non_spawn_specific("mobs_mc:wither","overworld",0,minetest.LIGHT_MAX+1)
+

mods/ITEMS/mcl_potions/commands.lua

@@ -20,6 +20,7 @@ get_chat_function["leaping"] = mcl_potions.leaping_func
 get_chat_function["swiftness"] = mcl_potions.swiftness_func
 get_chat_function["heal"] = mcl_potions.healing_func
 get_chat_function["bad_omen"] = mcl_potions.bad_omen_func
+get_chat_function["withering"] = mcl_potions.withering_func
 
 minetest.register_chatcommand("effect",{
 	params = S("<effect> <duration> [<factor>]"),

mods/ITEMS/mcl_potions/functions.lua

@@ -10,6 +10,7 @@ EF.swift = {} -- for swiftness AND slowness
 EF.night_vision = {}
 EF.fire_proof = {}
 EF.bad_omen = {}
+EF.withering = {}
 
 local EFFECT_TYPES = 0
 for _,_ in pairs(EF) do
@@ -19,8 +20,11 @@ end
 local icon_ids = {}
 
 local function potions_set_hudbar(player)
-
-	if EF.poisoned[player] and EF.regenerating[player] then
+	if EF.withering[player] and EF.regenerating[player] then
+		hb.change_hudbar(player, "health", nil, nil, "mcl_potions_icon_regen_wither.png", nil, "hudbars_bar_health.png")
+	elseif EF.withering[player] then
+		hb.change_hudbar(player, "health", nil, nil, "mcl_potions_icon_wither.png", nil, "hudbars_bar_health.png")
+	elseif EF.poisoned[player] and EF.regenerating[player] then
 		hb.change_hudbar(player, "health", nil, nil, "hbhunger_icon_regen_poison.png", nil, "hudbars_bar_health.png")
 	elseif EF.poisoned[player] then
 		hb.change_hudbar(player, "health", nil, nil, "hbhunger_icon_health_poison.png", nil, "hudbars_bar_health.png")
@@ -123,6 +127,33 @@ minetest.register_globalstep(function(dtime)
 
 	end
 
+	-- Check for withering players
+	for player, vals in pairs(EF.withering) do
+
+		is_player = player:is_player()
+		entity = player:get_luaentity()
+
+		EF.withering[player].timer = EF.withering[player].timer + dtime
+		EF.withering[player].hit_timer = (EF.withering[player].hit_timer or 0) + dtime
+
+		if player:get_pos() then mcl_potions._add_spawner(player, "#000000") end
+
+		if EF.withering[player].hit_timer >= EF.withering[player].step then
+			if is_player or entity then mcl_util.deal_damage(player, 1, {type = "magic"}) end
+			if EF.withering[player] then EF.withering[player].hit_timer = 0 end
+		end
+
+		if EF.withering[player] and EF.withering[player].timer >= EF.withering[player].dur then
+			EF.withering[player] = nil
+			if is_player then
+				meta = player:get_meta()
+				meta:set_string("_is_withering", minetest.serialize(EF.withering[player]))
+				potions_set_hud(player)
+			end
+		end
+
+	end
+
 	-- Check for poisoned players
 	for player, vals in pairs(EF.poisoned) do
 
@@ -152,7 +183,7 @@ minetest.register_globalstep(function(dtime)
 
 	end
 
-	-- Check for regnerating players
+	-- Check for regenerating players
 	for player, vals in pairs(EF.regenerating) do
 
 		is_player = player:is_player()
@@ -408,6 +439,7 @@ function mcl_potions._clear_cached_player_data(player)
 	EF.night_vision[player] = nil
 	EF.fire_proof[player] = nil
 	EF.bad_omen[player] = nil
+	EF.withering[player] = nil
 
 	meta = player:get_meta()
 	meta:set_int("night_vision", 0)
@@ -452,6 +484,7 @@ function mcl_potions._save_player_effects(player)
 	meta:set_string("_is_cat", minetest.serialize(EF.night_vision[player]))
 	meta:set_string("_is_fire_proof", minetest.serialize(EF.fire_proof[player]))
 	meta:set_string("_has_bad_omen", minetest.serialize(EF.bad_omen[player]))
+	meta:set_string("_is_withering", minetest.serialize(EF.withering[player]))
 
 end
 
@@ -507,6 +540,10 @@ function mcl_potions._load_player_effects(player)
 		EF.bad_omen[player] = minetest.deserialize(meta:get_string("_has_bad_omen"))
 	end
 
+	if minetest.deserialize(meta:get_string("_is_withering")) then
+		EF.withering[player] = minetest.deserialize(meta:get_string("_is_withering"))
+	end
+
 end
 
 -- Returns true if player has given effect
@@ -693,11 +730,9 @@ end
 
 function mcl_potions.healing_func(player, hp)
 
-	local obj = player:get_luaentity()
+	if not player or player:get_hp() <= 0 then return false end
 
-	if player:get_hp() == 0 then
-		return
-	end
+	local obj = player:get_luaentity()
 
 	if obj and obj.harmed_by_heal then hp = -hp end
 
@@ -725,6 +760,11 @@ end
 
 function mcl_potions.swiftness_func(player, factor, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not player:get_meta() then
 		return false
 	end
@@ -753,6 +793,11 @@ end
 
 function mcl_potions.leaping_func(player, factor, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not player:get_meta() then
 		return false
 	end
@@ -781,6 +826,11 @@ end
 
 function mcl_potions.weakness_func(player, factor, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not EF.weak[player] then
 
 		EF.weak[player] = {dur = duration, timer = 0, factor = factor}
@@ -804,6 +854,11 @@ end
 
 function mcl_potions.strength_func(player, factor, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not EF.strong[player] then
 
 		EF.strong[player] = {dur = duration, timer = 0, factor = factor}
@@ -825,8 +880,41 @@ function mcl_potions.strength_func(player, factor, duration)
 end
 
 
+function mcl_potions.withering_func(player, factor, duration)
+
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and (entity.is_boss or string.find(entity.name, "wither")) then return false end
+
+	if not EF.withering[player] then
+
+		EF.withering[player] = {step = factor, dur = duration, timer = 0}
+
+	else
+
+		local victim = EF.withering[player]
+
+		victim.step = math.min(victim.step, factor)
+		victim.dur = math.max(duration, victim.dur - victim.timer)
+		victim.timer = 0
+
+	end
+
+	if player:is_player() then
+		potions_set_hud(player)
+	end
+
+end
+
+
 function mcl_potions.poison_func(player, factor, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and (entity.is_boss or entity.harmed_by_heal or string.find(entity.name, "spider")) then return false end
+
 	if not EF.poisoned[player] then
 
 		EF.poisoned[player] = {step = factor, dur = duration, timer = 0}
@@ -850,6 +938,11 @@ end
 
 function mcl_potions.regeneration_func(player, factor, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and (entity.is_boss or entity.harmed_by_heal) then return false end
+
 	if not EF.regenerating[player] then
 
 		EF.regenerating[player] = {step = factor, dur = duration, timer = 0}
@@ -873,6 +966,11 @@ end
 
 function mcl_potions.invisiblility_func(player, null, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not EF.invisible[player] then
 
 		EF.invisible[player] = {dur = duration, timer = 0}
@@ -895,6 +993,11 @@ end
 
 function mcl_potions.water_breathing_func(player, null, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not EF.water_breathing[player] then
 
 		EF.water_breathing[player] = {dur = duration, timer = 0}
@@ -917,6 +1020,11 @@ end
 
 function mcl_potions.fire_resistance_func(player, null, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	if not EF.fire_proof[player] then
 
 		EF.fire_proof[player] = {dur = duration, timer = 0}
@@ -938,6 +1046,11 @@ end
 
 function mcl_potions.night_vision_func(player, null, duration)
 
+	if not player or player:get_hp() <= 0 then return false end
+
+	local entity = player:get_luaentity()
+	if entity and entity.is_boss then return false end
+
 	meta = player:get_meta()
 	if not EF.night_vision[player] then
 

mods/ITEMS/mcl_potions/init.lua

@@ -190,7 +190,7 @@ local function set_node_empty_bottle(itemstack, placer, pointed_thing, newitemst
 	-- play sound
 	minetest.sound_play("mcl_potions_bottle_pour", {pos=pointed_thing.under, gain=0.5, max_hear_range=16}, true)
 
-	-- 
+	--
 	if minetest.is_creative_enabled(placer:get_player_name()) then
 		return itemstack
 	else
@@ -356,6 +356,7 @@ local awkward_table = {
 	["mcl_fishing:pufferfish_raw"] = "mcl_potions:water_breathing",
 	["mcl_mobitems:ghast_tear"] = "mcl_potions:regeneration",
 	["mcl_mobitems:spider_eye"] = "mcl_potions:poison",
+	["mcl_flowers:wither_rose"] = "mcl_potions:withering",
 	["mcl_mobitems:rabbit_foot"] = "mcl_potions:leaping",
 }
 
@@ -373,7 +374,7 @@ local potions = {}
 for i, potion in ipairs({"healing","harming","swiftness","slowness",
 	 "leaping","poison","regeneration","invisibility","fire_resistance",
 	 -- "weakness","strength",
-	 "water_breathing","night_vision"}) do
+	 "water_breathing","night_vision", "withering"}) do
 
 	table.insert(potions, potion)
 
@@ -461,6 +462,31 @@ function mcl_potions.get_alchemy(ingr, pot)
 	return false
 end
 
+mcl_mobs.effect_functions["poison"] = mcl_potions.poison_func
+mcl_mobs.effect_functions["regeneration"] = mcl_potions.regeneration_func
+mcl_mobs.effect_functions["invisibility"] = mcl_potions.invisiblility_func
+mcl_mobs.effect_functions["fire_resistance"] = mcl_potions.fire_resistance_func
+mcl_mobs.effect_functions["night_vision"] = mcl_potions.night_vision_func
+mcl_mobs.effect_functions["water_breathing"] = mcl_potions.water_breathing_func
+mcl_mobs.effect_functions["leaping"] = mcl_potions.leaping_func
+mcl_mobs.effect_functions["swiftness"] = mcl_potions.swiftness_func
+mcl_mobs.effect_functions["heal"] = mcl_potions.healing_func
+mcl_mobs.effect_functions["bad_omen"] = mcl_potions.bad_omen_func
+mcl_mobs.effect_functions["withering"] = mcl_potions.withering_func
+
+-- give withering to players in a wither rose
+local etime = 0
+minetest.register_globalstep(function(dtime)
+	etime = dtime + etime
+	if etime < 0.5 then return end
+	etime = 0
+	for _,pl in pairs(minetest.get_connected_players()) do
+		local npos = vector.offset(pl:get_pos(), 0, 0.2, 0)
+		local n = minetest.get_node(npos)
+		if n.name == "mcl_flowers:wither_rose" then mcl_potions.withering_func(pl, 1, 2) end
+	end
+end)
+
 mcl_wip.register_wip_item("mcl_potions:night_vision")
 mcl_wip.register_wip_item("mcl_potions:night_vision_plus")
 mcl_wip.register_wip_item("mcl_potions:night_vision_splash")
@@ -468,4 +494,4 @@ mcl_wip.register_wip_item("mcl_potions:night_vision_plus_splash")
 mcl_wip.register_wip_item("mcl_potions:night_vision_lingering")
 mcl_wip.register_wip_item("mcl_potions:night_vision_plus_lingering")
 mcl_wip.register_wip_item("mcl_potions:night_vision_arrow")
-mcl_wip.register_wip_item("mcl_potions:night_vision_plus_arrow")
+mcl_wip.register_wip_item("mcl_potions:night_vision_plus_arrow")

mods/ITEMS/mcl_potions/mod.conf

@@ -1,2 +1,2 @@
 name = mcl_potions
-depends = mcl_core, mcl_farming, mcl_mobitems, mcl_fishing, mcl_bows, mcl_end, mcl_weather, playerphysics, mcl_wip
+depends = mcl_core, mcl_farming, mcl_flowers, mcl_mobitems, mcl_mobs, mcl_fishing, mcl_bows, mcl_end, mcl_weather, playerphysics, mcl_wip

mods/ITEMS/mcl_potions/potions.lua

@@ -79,7 +79,7 @@ local function register_potion(def)
 	if def.is_inv then
 		dur = dur * mcl_potions.INV_FACTOR
 	end
-	if def.name == "poison" or def.name == "regeneration" then
+	if def.name == "poison" or def.name == "regeneration" or def.name == "withering" then
 		dur = 45
 	end
 
@@ -93,7 +93,7 @@ local function register_potion(def)
 		local _tt
 		if effect and def.is_dur then
 			_tt = perc_string(effect).." | "..time_string(dur)
-			if def.name == "poison" or def.name == "regeneration" then
+			if def.name == "poison" or def.name == "regeneration" or def.name == "withering" then
 				_tt = S("1 HP/@1s | @2", effect, time_string(dur))
 			end
 		elseif def.name == "healing" or def.name == "harming" then
@@ -235,6 +235,8 @@ local function register_potion(def)
 			effect_II = def.effect*mcl_potions.II_FACTOR
 		elseif def.name == "poison" or def.name == "regeneration" then
 			effect_II = 1.2
+		elseif def.name == "withering" then
+			effect_II = 2
 		else
 			effect_II = def.effect^mcl_potions.II_FACTOR
 		end
@@ -327,7 +329,7 @@ local function register_potion(def)
 	if def.is_plus then
 
 		local dur_pl = dur * mcl_potions.PLUS_FACTOR
-		if def.name == "poison" or def.name == "regeneration" then
+		if def.name == "poison" or def.name == "regeneration" or def.name == "withering" then
 			dur_pl = 90
 		end
 
@@ -533,6 +535,20 @@ local leaping_def = {
 	is_plus = true,
 }
 
+local withering_def = {
+	name = "withering",
+	description = S("Withering"),
+	_tt = nil,
+	_longdesc = S("Applies the withering effect which deals damage at a regular interval and can kill."),
+	color = "#000000",
+	effect = 4,
+	is_dur = true,
+	on_use = mcl_potions.withering_func,
+	is_II = true,
+	is_plus = true,
+	is_inv = true,
+}
+
 local poison_def = {
 	name = "poison",
 	description = S("Poison"),
@@ -597,7 +613,7 @@ local fire_resistance_def = {
 
 local defs = { awkward_def, mundane_def, thick_def, dragon_breath_def,
 	healing_def, harming_def, night_vision_def, swiftness_def,
-	slowness_def, leaping_def, poison_def, regeneration_def,
+	slowness_def, leaping_def, withering_def, poison_def, regeneration_def,
 	invisibility_def, water_breathing_def, fire_resistance_def}
 
 for _, def in ipairs(defs) do

mods/ITEMS/mcl_potions/splash.lua

@@ -110,7 +110,7 @@ function mcl_potions.register_splash(name, descr, color, def)
 				for _,obj in pairs(minetest.get_objects_inside_radius(pos, 4)) do
 
 					local entity = obj:get_luaentity()
-					if obj:is_player() or entity.is_mob then
+					if obj:is_player() or entity and entity.is_mob then
 
 						local pos2 = obj:get_pos()
 						local rad = math.floor(math.sqrt((pos2.x-pos.x)^2 + (pos2.y-pos.y)^2 + (pos2.z-pos.z)^2))

settingtypes.txt

@@ -166,6 +166,24 @@ mcl_mob_cap_axolotl (Mob cap axolotl) int 5 0 1024
 #Maximum amount of ambient mobs that will spawn near a player (default:15)
 mcl_mob_cap_ambient (Mob cap ambient mobs) int 15 0 1024
 
+#Maximum amount of wither bosses on the loaded mapchunks in the overworld that allows spawning withers in the overworld (default:3)
+wither_cap_overworld (Wither cap overworld) int 3 0 2048
+
+#Maximum amount of wither bosses on the loaded mapchunks in the nether that allows spawning withers in the nether (default:10)
+wither_cap_nether (Wither cap nether) int 10 0 2048
+
+#Maximum amount of wither bosses on the loaded mapchunks in the end that allows spawning withers in the end (default:5)
+wither_cap_end (Wither cap end) int 5 0 2048
+
+#Should wither follow the player who spawned him around
+wither_follow_spawner (Wither following his spawner) bool false
+
+#Should wither strafe while in combat
+wither_strafes (Wither strafes) bool true
+
+#Wither anti-troll measures (escaping when stuck in a block, despawning when spawner goes offline, teleporting after the spawner). When this is OFF, wither_follow_spawner has no effect.
+wither_anti_troll_measures (Wither anti-troll measures) bool false
+
 #Display mob icons in inventory instead of mc-like spawn eggs
 mcl_old_spawn_icons (Old spawn icons instead of eggs) bool false