Bones: Ability to change bones mode. Tidy up code

Add 'bones_mode' setting to minetest.conf -> Modes: bones, drop, keep
Remove table 'bones'
Add minetest.conf.example description
Remove protection check from may_replace

minetest.conf.example

@@ -5,6 +5,12 @@
 # Whether creative mode (fast digging of all blocks, unlimited resources) should be enabled
 #creative_mode = false
 
+# Sets the behaviour of the inventory items when a player dies.
+#  "bones": Store all items inside a bone node but drop items if inside protected area
+#  "drop": Drop all items on the ground
+#  "keep": Player keeps all items
+#bones_mode = "bones"
+
 # The time in seconds after which the bones of a dead player can be looted by everyone
 # 0 to disable
 #share_bones_time = 1200

mods/bones/init.lua

@@ -1,8 +1,6 @@
 -- Minetest 0.4 mod: bones
 -- See README.txt for licensing and other information.
 
-bones = {}
-
 local function is_owner(pos, name)
 	local owner = minetest.get_meta(pos):get_string("owner")
 	if owner == "" or owner == name or minetest.check_player_privs(name, "protection_bypass") then
@@ -11,7 +9,7 @@ local function is_owner(pos, name)
 	return false
 end
 
-bones.bones_formspec =
+local bones_formspec =
 	"size[8,9]" ..
 	default.gui_bg ..
 	default.gui_bg_img ..
@@ -78,11 +76,11 @@ minetest.register_node("bones:bones", {
 	end,
 
 	on_punch = function(pos, node, player)
-		if(not is_owner(pos, player:get_player_name())) then
+		if not is_owner(pos, player:get_player_name()) then
 			return
 		end
 
-		if(minetest.get_meta(pos):get_string("infotext") == "") then
+		if minetest.get_meta(pos):get_string("infotext") == "" then
 			return
 		end
 
@@ -131,13 +129,9 @@ local function may_replace(pos, player)
 	local node_name = minetest.get_node(pos).name
 	local node_definition = minetest.registered_nodes[node_name]
 
-	-- if the node is unknown, we let the protection mod decide
-	-- this is consistent with when a player could dig or not dig it
-	-- unknown decoration would often be removed
-	-- while unknown building materials in use would usually be left
+	-- if the node is unknown, we return false
 	if not node_definition then
-		-- only replace nodes that are not protected
-		return not minetest.is_protected(pos, player:get_player_name())
+		return false
 	end
 
 	-- allow replacing air and liquids
@@ -157,8 +151,26 @@ local function may_replace(pos, player)
 	return node_definition.buildable_to and not minetest.is_protected(pos, player:get_player_name())
 end
 
+local drop = function(pos, itemstack)
+	local obj = core.add_item(pos, itemstack:take_item(itemstack:get_count()))
+	if obj then
+		obj:setvelocity({
+			x = math.random(-10, 10) / 9,
+			y = 5,
+			z = math.random(-10, 10) / 9,
+		})
+	end
+end
+
 minetest.register_on_dieplayer(function(player)
-	if minetest.setting_getbool("creative_mode") then
+
+	local bones_mode = minetest.setting_get("bones_mode") or "bones"
+	if bones_mode ~= "bones" and bones_mode ~= "drop" and bones_mode ~= "keep" then
+		bones_mode = "bones"
+	end
+
+	-- return if keep inventory set or in creative mode
+	if bones_mode == "keep" or minetest.setting_getbool("creative_mode") then
 		return
 	end
 
@@ -168,34 +180,38 @@ minetest.register_on_dieplayer(function(player)
 		return
 	end
 
-	local pos = player:getpos()
-	pos.x = math.floor(pos.x+0.5)
-	pos.y = math.floor(pos.y+0.5)
-	pos.z = math.floor(pos.z+0.5)
-	local param2 = minetest.dir_to_facedir(player:get_look_dir())
+	local pos = vector.round(player:getpos())
 	local player_name = player:get_player_name()
 
-	if (not may_replace(pos, player)) then
-		if (may_replace({x=pos.x, y=pos.y+1, z=pos.z}, player)) then
-			-- drop one node above if there's space
-			-- this should solve most cases of protection related deaths in which players dig straight down
-			-- yet keeps the bones reachable
+	-- check if it's possible to place bones, if not go 1 higher
+	if bones_mode == "bones" and not may_replace(pos, player) then
 		pos.y = pos.y + 1
-		else
-			-- drop items instead of delete
-			for i=1,player_inv:get_size("main") do
-				minetest.add_item(pos, player_inv:get_stack("main", i))
-			end
-			for i=1,player_inv:get_size("craft") do
-				minetest.add_item(pos, player_inv:get_stack("craft", i))
-			end
-			-- empty lists main and craft
-			player_inv:set_list("main", {})
-			player_inv:set_list("craft", {})
-			return
-		end
 	end
 
+	-- still cannot place bones? change mode to 'drop'
+	if bones_mode == "bones" and not may_replace(pos, player) then
+		bones_mode = "drop"
+	end
+
+	if bones_mode == "drop" then
+
+		-- drop inventory items
+		for i = 1, player_inv:get_size("main") do
+			drop(pos, player_inv:get_stack("main", i))
+		end
+		player_inv:set_list("main", {})
+
+		-- drop crafting grid items
+		for i = 1, player_inv:get_size("craft") do
+			drop(pos, player_inv:get_stack("craft", i))
+		end
+		player_inv:set_list("craft", {})
+
+		drop(pos, ItemStack("bones:bones"))
+		return
+	end
+
+	local param2 = minetest.dir_to_facedir(player:get_look_dir())
 	minetest.set_node(pos, {name = "bones:bones", param2 = param2})
 
 	local meta = minetest.get_meta(pos)
@@ -209,14 +225,14 @@ minetest.register_on_dieplayer(function(player)
 			inv:add_item("main", stack)
 		else
 			--drop if no space left
-			minetest.add_item(pos, stack)
+			drop(pos, stack)
 		end
 	end
 
 	player_inv:set_list("main", {})
 	player_inv:set_list("craft", {})
 
-	meta:set_string("formspec", bones.bones_formspec)
+	meta:set_string("formspec", bones_formspec)
 	meta:set_string("owner", player_name)
 
 	if share_bones_time ~= 0 then