Pitch one sound instead of using multiple ones

Do not ignore itemstrings which contain more than just the name; fixes missing clay drops
Support dropped items with toolwear and/or metadata

CONTRIBUTING.md

@@ -0,0 +1,3 @@
+- The `master` branch should be stable to end-users at all times. It should target latest Minetest point release.
+- Put rewrites and new features in branches.
+- Conform with setting defaults so that end-user upgrades doesn't change expected in-game behavior. Discuss default changes in an issue if one really need to change.

LICENSE

@@ -0,0 +1,504 @@
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+That's all there is to it!

README.md

@@ -0,0 +1,61 @@
+# item_drop
+By [PilzAdam](https://github.com/PilzAdam),
+[texmex](https://github.com/tacotexmex/), [hybriddog](https://github.com/hybriddog/).
+
+## Description
+A highly configurable mod providing item magnet and in-world node drops
+
+## Licensing
+LGPLv2.1/CC BY-SA 3.0. Particle code from WCILA mod by Aurailus, originally licensed MIT.
+
+## Notes
+item_drop can be played with Minetest 0.4.16 or above. It was originally
+developed by [PilzAdam](https://github.com/PilzAdam/item_drop).
+
+## List of features
+* All settings may be configured from within the game itself.
+  (Settings tab > Advanced settings > Mods > item_drop)
+* Drops nodes as in-world items on dig if `item_drop.enable_item_drop` is
+  `true` (true by default) It does nothing in creative mode.
+* Puts dropped items to the player's inventory if `item_drop.enable_item_pickup`
+  is `true` (true by default)
+  * Multiple items are picked in a quick succession instead of all at once which
+    is indicated by the pickup sound.
+  * It uses a node radius set in `item_drop.pickup_radius` (default 0.75),
+    if items are within this radius around the player's belt, they're picked.
+  * If `item_drop.pickup_age` is something positive, items dropped by players
+    are ignored for this time to avoid instantly picking up when dropping.
+  * If `item_drop.pickup_age` is `-1`, items are only picked when they don't
+    move, it's another fix for instant item picking.
+  * If `item_drop.magnet_radius` is bigger than `item_drop.pickup_radius`,
+    items between these radii are flying to the player for
+    `item_drop.magnet_time` seconds, after this time, they're picked or stop
+    flying.
+  * Enable manual item pickups by mouse only if `item_drop.mouse_pickup` is
+    `true` (true by default)
+* Plays a sound when the items are picked up with the gain level set to
+  `item_drop.pickup_sound_gain` (default 0.2)
+* Requires a key to be pressed in order to pick items if
+  `item_drop.enable_pickup_key` is `true` (true by default)
+  * The keytypes to choose from by setting `item_pickup_keytype` are:
+    * Use key (`Use`)
+    * Sneak key (`Sneak`)
+    * Left and Right keys combined (`LeftAndRight`)
+    * Right mouse button (`RMB`)
+    * Sneak key and right mouse button combined (`SneakAndRMB`)
+  * If `item_drop.pickup_keyinvert` is `true`, items are
+    collected when the key is not pressed instead of when it's pressed.
+* Displays a particle of the picked item above the player if
+  `item_drop.pickup_particle` is `true` (true by default)
+
+
+## Known issues
+
+## Bug reports and suggestions
+You can report bugs or suggest ideas by
+[filing an issue](http://github.com/minetest-mods/item_drop/issues/new).
+
+## Links
+* [Download ZIP](https://github.com/minetest-mods/item_drop/archive/master.zip)
+* [Source](https://github.com/minetest-mods/item_drop/)
+* [Forum thread](https://forum.minetest.net/viewtopic.php?t=16913)

README.txt

@@ -1,42 +0,0 @@
-===ITEM_DROP MOD for MINETEST-C55===
-by PilzAdam
-
-Introduction:
-This mod adds Minecraft like drop/pick up of items to Minetest.
-
-How to install:
-Unzip the archive an place it in minetest-base-directory/mods/minetest/
-if you have a windows client or a linux run-in-place client. If you have
-a linux system-wide instalation place it in ~/.minetest/mods/minetest/.
-If you want to install this mod only in one world create the folder
-worldmods/ in your worlddirectory.
-For further information or help see:
-http://wiki.minetest.com/wiki/Installing_Mods
-
-How to use the mod:
-Just install it an everything works.
-
-For developers:
-You dont have to use get_drops() anymore because of changes in the
-builtin files of minetest.
-
-License:
-Sourcecode: WTFPL (see below)
-Sound: WTFPL (see below)
-
-See also:
-http://minetest.net/
-
-         DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-                    Version 2, December 2004
-
- Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
-
- Everyone is permitted to copy and distribute verbatim or modified
- copies of this license document, and changing it is allowed as long
- as the name is changed.
-
-            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. You just DO WHAT THE FUCK YOU WANT TO. 

description.txt

@@ -0,0 +1 @@
+A highly configurable mod providing item magnet and in-world node drops

init.lua

@@ -1,116 +1,417 @@
-minetest.register_globalstep(function(dtime)
-	for _,player in ipairs(minetest.get_connected_players()) do
-		if player:get_hp() > 0 or not minetest.setting_getbool("enable_damage") then
-			local pos = player:getpos()
-			pos.y = pos.y+0.5
-			local inv = player:get_inventory()
-			
-			for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, 1)) do
-				if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
-					if inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
-						inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
-						if object:get_luaentity().itemstring ~= "" then
-							minetest.sound_play("item_drop_pickup", {
-								to_player = player:get_player_name(),
-								gain = 0.4,
-							})
-						end
-						object:get_luaentity().itemstring = ""
-						object:remove()
-					end
-				end
-			end
-			
-			for _,object in ipairs(minetest.env:get_objects_inside_radius(pos, 2)) do
-				if not object:is_player() and object:get_luaentity() and object:get_luaentity().name == "__builtin:item" then
-					if object:get_luaentity().collect then
-						if inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
-							local pos1 = pos
-							pos1.y = pos1.y+0.2
-							local pos2 = object:getpos()
-							local vec = {x=pos1.x-pos2.x, y=pos1.y-pos2.y, z=pos1.z-pos2.z}
-							vec.x = vec.x*3
-							vec.y = vec.y*3
-							vec.z = vec.z*3
-							object:setvelocity(vec)
-							object:get_luaentity().physical_state = false
-							object:get_luaentity().object:set_properties({
-								physical = false
-							})
-							
-							minetest.after(1, function(args)
-								local lua = object:get_luaentity()
-								if object == nil or lua == nil or lua.itemstring == nil then
-									return
-								end
-								if inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
-									inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
-									if object:get_luaentity().itemstring ~= "" then
-										minetest.sound_play("item_drop_pickup", {
-											to_player = player:get_player_name(),
-											gain = 0.4,
-										})
-									end
-									object:get_luaentity().itemstring = ""
-									object:remove()
-								else
-									object:setvelocity({x=0,y=0,z=0})
-									object:get_luaentity().physical_state = true
-									object:get_luaentity().object:set_properties({
-										physical = true
-									})
-								end
-							end, {player, object})
-							
-						end
-					end
-				end
-			end
+local load_time_start = minetest.get_us_time()
+math.randomseed(os.time())
+
+-- Functions which can be overridden by mods
+item_drop = {
+	-- This function is executed before picking up an item or making it fly to
+	-- the player. If it does not return true, the item is ignored.
+	-- It is also executed before collecting the item after it flew to
+	-- the player and did not reach him/her for magnet_time seconds.
+	can_pickup = function(entity, player)
+		if entity.item_drop_picked then
+			-- Ignore items where picking has already failed
+			return false
+		end
+		return true
+	end,
+
+	-- before_collect and after_collect are executed before and after an item
+	-- is collected by a player
+	before_collect = function(entity, pos, player)
+	end,
+	after_collect = function(entity, pos, player)
+		entity.item_drop_picked = true
+	end,
+}
+
+local function legacy_setting_getbool(name_new, name_old, default)
+	local v = minetest.settings:get_bool(name_new)
+	if v == nil then
+		v = minetest.settings:get_bool(name_new)
+	end
+	if default then
+		return v ~= false
+	end
+	return v
+end
+
+local function legacy_setting_getnumber(name_new, name_old, default)
+	return tonumber(minetest.settings:get(name_new))
+		or tonumber(minetest.settings:get(name_old))
+		or default
+end
+
+if legacy_setting_getbool("item_drop.enable_item_pickup",
+		"enable_item_pickup", true) then
+	local pickup_gain = legacy_setting_getnumber("item_drop.pickup_sound_gain",
+		"item_pickup_gain", 0.2)
+	local pickup_particle =
+		minetest.settings:get_bool("item_drop.pickup_particle", true)
+	local pickup_radius = legacy_setting_getnumber("item_drop.pickup_radius",
+		"item_pickup_radius", 0.75)
+	local magnet_radius = tonumber(
+		minetest.settings:get("item_drop.magnet_radius")) or -1
+	local magnet_time = tonumber(
+		minetest.settings:get("item_drop.magnet_time")) or 5.0
+	local pickup_age = tonumber(
+		minetest.settings:get("item_drop.pickup_age")) or 0.5
+	local key_triggered = legacy_setting_getbool("item_drop.enable_pickup_key",
+		"enable_item_pickup_key", true)
+	local key_invert = minetest.settings:get_bool(
+		"item_drop.pickup_keyinvert") ~= false
+	local keytype
+	if key_triggered then
+		keytype = minetest.settings:get("item_drop.pickup_keytype") or
+		minetest.settings:get("item_pickup_keytype") or "Use"
+		-- disable pickup age if picking is explicitly enabled by the player
+		if not key_invert then
+			pickup_age = math.min(pickup_age, 0)
 		end
 	end
-end)
-
-function minetest.handle_node_drops(pos, drops, digger)
-	local inv
-	if minetest.setting_getbool("creative_mode") and digger and digger:is_player() then
-		inv = digger:get_inventory()
+	local mouse_pickup = minetest.settings:get_bool(
+		"item_drop.mouse_pickup") ~= false
+	if not mouse_pickup then
+		minetest.registered_entities["__builtin:item"].pointable = false
 	end
-	for _,item in ipairs(drops) do
-		local count, name
-		if type(item) == "string" then
-			count = 1
-			name = item
+
+	local magnet_mode = magnet_radius > pickup_radius
+	local zero_velocity_mode = pickup_age == -1
+	if magnet_mode
+	and zero_velocity_mode then
+		error"zero velocity mode can't be used together with magnet mode"
+	end
+
+	-- tells whether an inventorycube should be shown as pickup_particle or not
+	-- for known drawtypes
+	local inventorycube_drawtypes = {
+		normal = true,
+		allfaces = true,
+		allfaces_optional = true,
+		glasslike = true,
+		glasslike_framed = true,
+		glasslike_framed_optional = true,
+		liquid = true,
+		flowingliquid = true,
+	}
+
+	-- adds the item to the inventory and removes the object
+	local function collect_item(ent, pos, player)
+		item_drop.before_collect(ent, pos, player)
+		minetest.sound_play("item_drop_pickup", {
+			pos = pos,
+			gain = pickup_gain,
+			pitch = (100 - (math.random(-2, 2)) * 10) / 100,
+		})
+		if pickup_particle then
+			local item = minetest.registered_nodes[
+				ent.itemstring:gsub("(.*)%s.*$", "%1")]
+			local image = ""
+			if item and item.tiles and item.tiles[1] then
+				if inventorycube_drawtypes[item.drawtype] then
+					local tiles = item.tiles
+
+					local top = tiles[1]
+					if type(top) == "table" then
+						top = top.name
+					end
+					local left = tiles[3] or top
+					if type(left) == "table" then
+						left = left.name
+					end
+					local right = tiles[5] or left
+					if type(right) == "table" then
+						right = right.name
+					end
+
+					image = minetest.inventorycube(top, left, right)
+				else
+					image = item.inventory_image or item.tiles[1]
+				end
+				minetest.add_particle({
+					pos = {x = pos.x, y = pos.y + 1.5, z = pos.z},
+					velocity = {x = 0, y = 1, z = 0},
+					acceleration = {x = 0, y = -4, z = 0},
+					expirationtime = 0.2,
+					size = 3,--math.random() + 0.5,
+					vertical = false,
+					texture = image,
+				})
+			end
+		end
+		ent:on_punch(player)
+		item_drop.after_collect(ent, pos, player)
+	end
+
+	-- opt_get_ent gets the object's luaentity if it can be collected
+	local opt_get_ent
+	if zero_velocity_mode then
+		function opt_get_ent(object)
+			if object:is_player()
+			or not vector.equals(object:get_velocity(), {x=0, y=0, z=0}) then
+				return
+			end
+			local ent = object:get_luaentity()
+			if not ent
+			or ent.name ~= "__builtin:item"
+			or ent.itemstring == "" then
+				return
+			end
+			return ent
+		end
+	else
+		function opt_get_ent(object)
+			if object:is_player() then
+				return
+			end
+			local ent = object:get_luaentity()
+			if not ent
+			or ent.name ~= "__builtin:item"
+			or (ent.dropped_by and ent.age < pickup_age)
+			or ent.itemstring == "" then
+				return
+			end
+			return ent
+		end
+	end
+
+	local afterflight
+	if magnet_mode then
+		-- take item or reset velocity after flying a second
+		function afterflight(object, inv, player)
+			-- TODO: test what happens if player left the game
+			local ent = opt_get_ent(object)
+			if not ent then
+				return
+			end
+			local item = ItemStack(ent.itemstring)
+			if inv
+			and inv:room_for_item("main", item)
+			and item_drop.can_pickup(ent, player) then
+				collect_item(ent, object:get_pos(), player)
+			else
+				-- the acceleration will be reset by the object's on_step
+				object:set_velocity({x=0,y=0,z=0})
+				ent.is_magnet_item = false
+			end
+		end
+
+		-- disable velocity and acceleration changes of items flying to players
+		minetest.after(0, function()
+			local ObjectRef
+			local blocked_methods = {"set_acceleration", "set_velocity",
+				"setacceleration", "setvelocity"}
+			local itemdef = minetest.registered_entities["__builtin:item"]
+			local old_on_step = itemdef.on_step
+			local function do_nothing() end
+			function itemdef.on_step(self, dtime)
+				if not self.is_magnet_item then
+					return old_on_step(self, dtime)
+				end
+				ObjectRef = ObjectRef or getmetatable(self.object)
+				local old_funcs = {}
+				for i = 1, #blocked_methods do
+					local method = blocked_methods[i]
+					old_funcs[method] = ObjectRef[method]
+					ObjectRef[method] = do_nothing
+				end
+				old_on_step(self, dtime)
+				for i = 1, #blocked_methods do
+					local method = blocked_methods[i]
+					ObjectRef[method] = old_funcs[method]
+				end
+			end
+		end)
+	end
+
+	-- set keytype to the key name if possible
+	if keytype == "Use" then
+		keytype = "aux1"
+	elseif keytype == "Sneak" then
+		keytype = "sneak"
+	elseif keytype == "LeftAndRight" then -- LeftAndRight combination
+		keytype = 0
+	elseif keytype == "SneakAndRMB" then -- SneakAndRMB combination
+		keytype = 1
+	end
+
+
+	-- tests if the player has the keys pressed to enable item picking
+	local function has_keys_pressed(player)
+		if not key_triggered then
+			return true
+		end
+
+		local control = player:get_player_control()
+		local keys_pressed
+		if keytype == 0 then -- LeftAndRight combination
+			keys_pressed = control.left and control.right
+		elseif keytype == 1 then -- SneakAndRMB combination
+			keys_pressed = control.sneak and control.RMB
 		else
-			count = item:get_count()
-			name = item:get_name()
+			keys_pressed = control[keytype]
 		end
-		if not inv or not inv:contains_item("main", ItemStack(name)) then
-			for i=1,count do
-				local obj = minetest.env:add_item(pos, name)
-				if obj ~= nil then
-					obj:get_luaentity().collect = true
-					local x = math.random(1, 5)
-					if math.random(1,2) == 1 then
-						x = -x
+
+		return keys_pressed ~= key_invert
+	end
+
+	-- called for each player to possibly collect an item, returns true if so
+	local function pickupfunc(player)
+		if not has_keys_pressed(player)
+		or not minetest.get_player_privs(player:get_player_name()).interact
+		or player:get_hp() <= 0 then
+			return
+		end
+
+		local pos = player:get_pos()
+		pos.y = pos.y+0.5
+		local inv
+
+		local objectlist = minetest.get_objects_inside_radius(pos,
+			magnet_mode and magnet_radius or pickup_radius)
+		for i = 1,#objectlist do
+			local object = objectlist[i]
+			local ent = opt_get_ent(object)
+			if ent
+			and item_drop.can_pickup(ent, player) then
+				if not inv then
+					inv = player:get_inventory()
+					if not inv then
+						minetest.log("error", "[item_drop] Couldn't " ..
+							"get inventory")
+						return
 					end
-					local z = math.random(1, 5)
-					if math.random(1,2) == 1 then
-						z = -z
+				end
+				local item = ItemStack(ent.itemstring)
+				if inv:room_for_item("main", item) then
+					local flying_item
+					local pos2
+					if magnet_mode then
+						pos2 = object:get_pos()
+						flying_item = vector.distance(pos, pos2) > pickup_radius
 					end
-					obj:setvelocity({x=1/x, y=obj:getvelocity().y, z=1/z})
-					
-					-- FIXME this doesnt work for deactiveted objects
-					if minetest.setting_get("remove_items") and tonumber(minetest.setting_get("remove_items")) then
-						minetest.after(tonumber(minetest.setting_get("remove_items")), function(obj)
-							obj:remove()
-						end, obj)
+					if not flying_item then
+						-- The item is near enough to pick it
+						collect_item(ent, pos, player)
+						-- Collect one item at a time to avoid the loud pop
+						return true
+					end
+					-- The item is not too far a way but near enough to be
+					-- magnetised, make it fly to the player
+					local vel = vector.multiply(vector.subtract(pos, pos2), 3)
+					vel.y = vel.y + 0.6
+					object:set_velocity(vel)
+					if not ent.is_magnet_item then
+						ent.object:set_acceleration({x=0, y=0, z=0})
+						ent.is_magnet_item = true
+
+						minetest.after(magnet_time, afterflight,
+							object, inv, player)
 					end
 				end
 			end
 		end
 	end
+
+	local function pickup_step()
+		local got_item
+		local players = minetest.get_connected_players()
+		for i = 1,#players do
+			got_item = got_item or pickupfunc(players[i])
+		end
+		-- lower step if takeable item(s) were found
+		local time
+		if got_item then
+			time = 0.02
+		else
+			time = 0.2
+		end
+		minetest.after(time, pickup_step)
+	end
+	minetest.after(3.0, pickup_step)
 end
 
-if minetest.setting_get("log_mods") then
-	minetest.log("action", "item_drop loaded")
+if legacy_setting_getbool("item_drop.enable_item_drop", "enable_item_drop", true)
+and not minetest.settings:get_bool("creative_mode") then
+	-- Workaround to test if an item metadata (ItemStackMetaRef) is empty
+	local function itemmeta_is_empty(meta)
+		local t = meta:to_table()
+		for k, v in pairs(t) do
+			if k ~= "fields" then
+				return false
+			end
+			assert(type(v) == "table")
+			if next(v) ~= nil then
+				return false
+			end
+		end
+		return true
+	end
+
+	-- Tests if the item has special information such as metadata
+	local function can_split_item(item)
+		return item:get_wear() == 0 and itemmeta_is_empty(item:get_meta())
+	end
+
+	local function spawn_items(pos, items_to_spawn)
+		for i = 1,#items_to_spawn do
+			local obj = minetest.add_item(pos, items_to_spawn[i])
+			if not obj then
+				error("Couldn't spawn item " .. name .. ", drops: "
+					.. dump(drops))
+			end
+
+			local vel = obj:get_velocity()
+			local x = math.random(-5, 4)
+			if x >= 0 then
+				x = x+1
+			end
+			vel.x = 1 / x
+			local z = math.random(-5, 4)
+			if z >= 0 then
+				z = z+1
+			end
+			vel.z = 1 / z
+			obj:set_velocity(vel)
+		end
+	end
+
+	function minetest.handle_node_drops(pos, drops)
+		for i = 1,#drops do
+			local item = drops[i]
+			if type(item) == "string" then
+				-- The string is not necessarily only the item name,
+				-- so always convert it to ItemStack
+				item = ItemStack(item)
+			end
+			local count = item:get_count()
+			local name = item:get_name()
+
+			-- Sometimes nothing should be dropped
+			if name == ""
+			or not minetest.registered_items[name] then
+				count = 0
+			end
+
+			if count > 0 then
+				-- Split items if possible
+				local items_to_spawn = {item}
+				if can_split_item(item) then
+					for i = 1,count do
+						items_to_spawn[i] = name
+					end
+				end
+
+				spawn_items(pos, items_to_spawn)
+			end
+		end
+	end
+end
+
+
+local time = (minetest.get_us_time() - load_time_start) / 1000000
+local msg = "[item_drop] loaded after ca. " .. time .. " seconds."
+if time > 0.01 then
+	print(msg)
+else
+	minetest.log("info", msg)
 end

mod.conf

@@ -0,0 +1,2 @@
+name = item_drop
+description = A highly configurable mod providing item magnet and in-world node drops

settingtypes.txt

@@ -0,0 +1,38 @@
+#Pick up items automatically
+item_drop.enable_item_pickup (Enable item pickups) bool true
+
+#Drop items in-world on dig, does nothing in creative mode
+item_drop.enable_item_drop (Enable item drops) bool true
+
+#Use a key to pick up items
+item_drop.enable_pickup_key (Use pickup key) bool true
+
+#Collect items when the key is not pressed instead of when it is pressed
+item_drop.pickup_keyinvert (Invert pickup key) bool true
+
+#What keytype to use as pickup key
+item_drop.pickup_keytype (Pickup keytype) enum Use Use,Sneak,LeftAndRight,RMB,SneakAndRMB
+
+#The volume of the pickup sound
+item_drop.pickup_sound_gain (Pickup sound gain) float 0.4
+
+#Display a particle of the item picked up above the player
+item_drop.pickup_particle (Pickup particle) bool true
+
+#Player pickup radius, the maximum distance from which items can be collected
+item_drop.pickup_radius (Pickup radius) float 0.75
+
+#Magnet radius, items between pickup_radius and this begin flying to the player
+#Set it to -1 (or something else smaller than pickup_radius) to disable item
+#flying
+item_drop.magnet_radius (Magnet radius) float -1
+
+#Item flight duration, items flying for more than this time are added to the
+#player's inventory
+item_drop.magnet_time (Magnet time) float 5.0
+
+#Time delay in seconds after autopicking an item if it's dropped by a player
+item_drop.pickup_age (Pickup age) float 0.5
+
+#Enable manual item pickups by mouse
+item_drop.mouse_pickup (Mouse pickup) bool true