Blast Protection; Fire Protection; Projectile Protection; Feather Falling; Thorns

mods/CORE/mcl_enchanting/enchantments.lua

@@ -1,5 +1,13 @@
 -- Taken from https://minecraft.gamepedia.com/Enchanting
 
+local function increase_damage(damage_group, factor)
+	return function(itemstack, level)
+		local tool_capabilities = itemstack:get_tool_capabilities()
+		tool_capabilities.damage_groups[damage_group] = (tool_capabilities.damage_groups[damage_group] or 0) + level * factor
+		itemstack:get_meta():set_tool_capabilities(tool_capabilities)
+	end
+end
+
 -- requires engine change
 --[[mcl_enchanting.enchantments.aqua_affinity = {
 	name = "Aqua Affinity",
@@ -15,14 +23,6 @@
 	requires_tool = false,
 }]]--
 
-local function increase_damage(damage_group, factor)
-	return function(itemstack, level)
-		local tool_capabilities = itemstack:get_tool_capabilities()
-		tool_capabilities.damage_groups[damage_group] = (tool_capabilities.damage_groups[damage_group] or 0) + level * factor
-		itemstack:get_meta():set_tool_capabilities(tool_capabilities)
-	end
-end
-
 -- implemented via on_enchant and additions in mobs_mc; Slowness IV part unimplemented
 mcl_enchanting.enchantments.bane_of_arthropods = {
 	name = "Bane of Arthropods",
@@ -38,7 +38,7 @@ mcl_enchanting.enchantments.bane_of_arthropods = {
 	requires_tool = false,
 }
 
--- unimplemented
+-- implemented in mcl_armor
 mcl_enchanting.enchantments.blast_protection = {
 	name = "Blast Protection",
 	max_level = 4,
@@ -123,7 +123,7 @@ mcl_enchanting.enchantments.efficiency = {
 	requires_tool = false,
 }
 
--- unimplemented
+-- implemented in mcl_armor
 mcl_enchanting.enchantments.feather_falling = {
 	name = "Feather Falling",
 	max_level = 4,
@@ -152,7 +152,7 @@ mcl_enchanting.enchantments.feather_falling = {
 	requires_tool = false,
 }]]--
 
--- unimplemented
+-- implemented in mcl_armor
 mcl_enchanting.enchantments.fire_protection = {
 	name = "Fire Protection",
 	max_level = 4,
@@ -350,7 +350,7 @@ mcl_enchanting.enchantments.power = {
 	requires_tool = false,
 }
 
--- unimplemented
+-- implemented in mcl_armor
 mcl_enchanting.enchantments.projectile_protection = {
 	name = "Projectile Protection",
 	max_level = 4,
@@ -485,7 +485,7 @@ mcl_enchanting.enchantments.soul_speed = {
 	requires_tool = false,
 }]]--
 
--- unimplemented
+-- implemented in mcl_armor
 mcl_enchanting.enchantments.thorns = {
 	name = "Thorns",
 	max_level = 3,

mods/CORE/mcl_explosions/init.lua

@@ -284,8 +284,14 @@ local function trace_explode(pos, strength, raydirs, radius, drop_chance, fire,
 					impact = 0
 				end
 				local damage = math.floor((impact * impact + impact) * 7 * strength + 1)
-				if mod_death_messages and obj:is_player() then
+				if obj:is_player() then
-					mcl_death_messages.player_damage(obj, S("@1 was caught in an explosion.", obj:get_player_name()))
+					local name = obj:get_player_name()
+					if mod_death_messages then
+						mcl_death_messages.player_damage(obj, S("@1 was caught in an explosion.", name))
+					end
+					if rawget(_G, "armor") and armor.last_damage_types then
+						armor.last_damage_types[name] = "explosion"
+					end
 				end
 				local source = puncher
 				if not source then

mods/ENTITIES/mobs_mc/blaze.lua

@@ -83,6 +83,9 @@ mobs:register_arrow("mobs_mc:blaze_fireball", {
 
 	-- Direct hit, no fire... just plenty of pain
 	hit_player = function(self, player)
+		if rawget(_G, "armor") and armor.last_damage_types then
+			armor.last_damage_types[player:get_player_name()] = "fireball"
+		end
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 5},

mods/ENTITIES/mobs_mc/ghast.lua

@@ -71,6 +71,9 @@ mobs:register_arrow("mobs_mc:fireball", {
 	velocity = 15,
 
 	hit_player = function(self, player)
+		if rawget(_G, "armor") and armor.last_damage_types then
+			armor.last_damage_types[player:get_player_name()] = "fireball"
+		end
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 6},

mods/ITEMS/mcl_armor/armor.lua

@@ -18,6 +18,7 @@ armor = {
 		.."listring[current_player;craft]",
 	textures = {},
 	default_skin = "character",
+	last_damage_types = {},
 }
 
 if minetest.get_modpath("mcl_skins") then
@@ -497,12 +498,15 @@ end)
 minetest.register_on_player_hpchange(function(player, hp_change, reason)
 	local name, player_inv, armor_inv = armor:get_valid_player(player, "[on_hpchange]")
 	if name and hp_change < 0 then
-
+		local damage_type = armor.last_damage_types[name]
+		armor.last_damage_types[name] = nil
+		
 		-- Armor doesn't protect from set_hp (commands like /kill),
-		-- falling and drowning damage.
+		if reason.type == "set_hp" then
-		if reason.type == "set_hp" or reason.type == "drown" or reason.type == "fall" then
 			return hp_change
 		end
+		
+		local regular_reduction = reason.type ~= "drown" and reason.type ~= "fall"
 
 		-- Account for potion effects (armor doesn't save the target)
 		if reason.other == "poison" or reason.other == "harming" then
@@ -512,21 +516,68 @@ minetest.register_on_player_hpchange(function(player, hp_change, reason)
 		local heal_max = 0
 		local items = 0
 		local armor_damage = math.max(1, math.floor(math.abs(hp_change)/4))
-
+		
 		local total_points = 0
 		local total_toughness = 0
-		local protection_reduction = 0
+		local epf = 0
+		local thorns_damage = 0
+		local thorns_damage_regular = 0
 		for i=1, 6 do
 			local stack = player_inv:get_stack("armor", i)
 			if stack:get_count() > 0 then
+				local enchantments = mcl_enchanting.get_enchantments(stack)
+				local pts = stack:get_definition().groups["mcl_armor_points"] or 0
+				local tough = stack:get_definition().groups["mcl_armor_toughness"] or 0
+				total_points = total_points + pts
+				total_toughness = total_toughness + tough
+				
+				local protection_level = enchantments.protection or 0
+				if protection_level > 0 then
+					epf = epf + protection_level * 1
+				end
+				local blast_protection_level = enchantments.blast_protection or 0
+				if blast_protection_level > 0 and damage_type == "explosion" then
+					epf = epf + blast_protection_level * 2
+				end
+				local fire_protection_level = enchantments.fire_protection or 0
+				if fire_protection_level > 0 and (damage_type == "fireball" or reason.type == "node_damage" and
+					(reason.node == "mcl_fire:fire" or reason.node == "mcl_core:lava_source" or reason.node == "mcl_core:lava_flowing")) then
+					epf = epf + fire_protection_level * 2
+				end
+				local projectile_protection_level = enchantments.projectile_protection or 0
+				if projectile_protection_level and (damage_type == "projectile" or damage_type == "fireball") then
+					epf = epf + projectile_protection_level * 2
+				end
+				local feather_falling_level = enchantments.feather_falling or 0
+				if feather_falling_level and reason.type == "fall" then
+					epf = epf + feather_falling_level * 3
+				end
+				
+				local did_thorns_damage = false
+				local thorns_level = enchantments.thorns or 0
+				if thorns_level then
+					if thorns_level > 10 then
+						thorns_damage = thorns_damage + thorns_level - 10
+						did_thorns_damage = true
+					elseif thorns_damage_regular < 4 and thorns_level * 0.15 > math.random() then
+						local thorns_damage_regular_new = math.min(4, thorns_damage_regular + math.random(4))
+						thorns_damage = thorns_damage + thorns_damage_regular_new - thorns_damage_regular
+						thorns_damage_regular = thorns_damage_regular_new
+						did_thorns_damage = true
+					end
+				end
+				
 				-- Damage armor
 				local use = stack:get_definition().groups["mcl_armor_uses"] or 0
-				local enchantments = mcl_enchanting.get_enchantments(stack)
+				if use > 0 and regular_reduction then
-				if enchantments.unbreaking then
+					local unbreaking_level = enchantments.unbreaking or 0
-					use = use / (0.6 + 0.4 / (enchantments.unbreaking + 1))
+					if unbreaking_level > 0 then
-				end
+						use = use / (0.6 + 0.4 / (unbreaking_level + 1))
-				if use > 0 then
+					end
 					local wear = armor_damage * math.floor(65536/use)
+					if did_thorns_damage then
+						wear = wear * 3
+					end
 					stack:add_wear(wear)
 				end
 
@@ -538,26 +589,34 @@ minetest.register_on_player_hpchange(function(player, hp_change, reason)
 					armor:set_player_armor(player)
 					armor:update_inventory(player)
 				end
-
-				local pts = stack:get_definition().groups["mcl_armor_points"] or 0
-				local tough = stack:get_definition().groups["mcl_armor_toughness"] or 0
-				total_points = total_points + pts
-				total_toughness = total_toughness + tough
-				if enchantments.protection then
-					protection_reduction = protection_reduction + enchantments.protection * 0.04
-				end
-				-- if enchantments.blast_protection and  then
-				--	protection_reduction = protection_reduction + enchantments.blast_protection * 0.08
-				-- end
 			end
 		end
 		local damage = math.abs(hp_change)
-
+		
-		-- Damage calculation formula (from <https://minecraft.gamepedia.com/Armor#Damage_protection>)
+		if regular_reduction then
-		damage = damage * (1 - math.min(20, math.max((total_points/5), total_points - damage / (2+(total_toughness/4)))) / 25)
+			-- Damage calculation formula (from <https://minecraft.gamepedia.com/Armor#Damage_protection>)
-		damage = damage * (1 - math.min(1, protection_reduction))
+			damage = damage * (1 - math.min(20, math.max((total_points/5), total_points - damage / (2+(total_toughness/4)))) / 25)
+		end
+		damage = damage * (1 - (math.min(20, epf) / 25))
 		damage = math.floor(damage+0.5)		
-
+		
+		if reason.type == "punch" and thorns_damage > 0 then
+			local obj = reason.object
+			if obj then
+				local luaentity = obj:get_luaentity()
+				if luaentity then
+					local shooter = obj._shooter
+					if shooter then
+						obj = shooter
+					end
+				end
+				obj:punch(player, 1.0, {
+					full_punch_interval=1.0,
+					damage_groups = {fleshy = thorns_damage},
+				})
+			end
+		end
+		
 		hp_change = -math.abs(damage)
 
 		armor.def[name].count = items

mods/ITEMS/mcl_bows/arrow.lua

@@ -240,12 +240,14 @@ ARROW_ENTITY.on_step = function(self, dtime)
 
 					-- Punch target object but avoid hurting enderman.
 					if not lua or lua.name ~= "mobs_mc:enderman" then
+						if obj:is_player() and rawget(_G, "armor") and armor.last_damage_types then
+							armor.last_damage_types[obj:get_player_name()] = "projectile"
+						end
 						damage_particles(self.object:get_pos(), self._is_critical)
-						self.object:set_pos(vector.subtract(obj:get_pos(), vector.multiply(vector.normalize(self.object:get_velocity()), 2)))
 						obj:punch(self.object, 1.0, {
 							full_punch_interval=1.0,
 							damage_groups={fleshy=self._damage},
-						}, nil)
+						}, self.object:get_velocity())
 					end