Corrige crash à cause d'un mauvais appel de fonction

tested with item_helpers

README.md

@@ -3,10 +3,10 @@ By [PilzAdam](https://github.com/PilzAdam),
 [texmex](https://github.com/tacotexmex/), [hybriddog](https://github.com/hybriddog/).
 
 ## Description
-This mod adds Minecraft like drop/pick up of items to Minetest.
+A highly configurable mod providing item magnet and in-world node drops
 
 ## Licensing
-LGPLv2.1/CC BY-SA 3.0.
+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
@@ -19,6 +19,8 @@ developed by [PilzAdam](https://github.com/PilzAdam/item_drop).
   `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
@@ -29,6 +31,8 @@ developed by [PilzAdam](https://github.com/PilzAdam/item_drop).
     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
@@ -41,6 +45,9 @@ developed by [PilzAdam](https://github.com/PilzAdam/item_drop).
     * Sneak key and right mouse button combined (`SneakAndRMB`)
   * If `item_drop.pickup_keyinvert` is `true` (false by default), 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
 

init.lua

@@ -1,7 +1,29 @@
 local load_time_start = minetest.get_us_time()
-pickup_radius = tonumber(minetest.settings:get("item_pickup_radius"))
 
-if minetest.settings:get_bool("item_drop.enable_item_pickup") ~= false or
+-- 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,
+}
+
+if minetest.settings:get_bool("item_drop.enable_item_pickup") ~= false and
 minetest.settings:get_bool("enable_item_pickup") ~= false then
 	local pickup_gain = tonumber(
 		minetest.settings:get("item_drop.pickup_sound_gain")) or
@@ -9,7 +31,8 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 	local pickup_particle =
 		minetest.settings:get_bool("item_drop.pickup_particle") ~= false
 	local pickup_radius = tonumber(
-		minetest.settings:get("item_drop.pickup_radius")) or 0.75
+		minetest.settings:get("item_drop.pickup_radius")) or
+		tonumber(minetest.settings:get("item_pickup_radius")) or 0.75
 	local magnet_radius = tonumber(
 		minetest.settings:get("item_drop.magnet_radius")) or -1
 	local magnet_time = tonumber(
@@ -30,6 +53,11 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 			pickup_age = math.min(pickup_age, 0)
 		end
 	end
+	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
 
 	local magnet_mode = magnet_radius > pickup_radius
 	local zero_velocity_mode = pickup_age == -1
@@ -38,43 +66,50 @@ minetest.settings:get_bool("enable_item_pickup") ~= false 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,
 		})
 		if pickup_particle then
-			local item = minetest.registered_nodes[ent.itemstring:gsub("(.*)%s.*$","%1")]
+			local item = minetest.registered_nodes[
+				ent.itemstring:gsub("(.*)%s.*$", "%1")]
 			local image = ""
-			if minetest.registered_items[item.name] and minetest.registered_items[item.name].tiles then
-				if minetest.registered_items[item.name].tiles[1] then
-						local dt = minetest.registered_items[item.name].drawtype
-						if dt == "normal" or dt == "allfaces" or dt == "allfaces_optional"
-						or dt == "glasslike" or dt =="glasslike_framed" or dt == "glasslike_framed_optional"
-						or dt == "liquid" or dt == "flowingliquid" then
-							local tiles = minetest.registered_items[item.name].tiles
+			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.item end
-							local left = tiles[3]
-							if not left then left = top end
-							if (type(left) == "table") then left = left.item end
-							local right = tiles[5]
-							if not right then right = left end
-							if (type(right) == "table") then right = right.item end
+					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 = "[inventorycube{"..top.."{"..left.."{"..right
-						else
-							image = minetest.registered_items[item.name].inventory_image
-							if not image then image = minetest.registered_items[item.name].tiles[1] end
-						end
-				end
-			end
-			if item then
-				local texture = item.tiles[1] or item.inventory_image or ""
-				if item.drawtype == "normal" then
-					texture = item.tiles
+					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},
@@ -88,6 +123,7 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 			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
@@ -133,16 +169,42 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 			end
 			local item = ItemStack(ent.itemstring)
 			if inv
-			and inv:room_for_item("main", item) then
+			and inv:room_for_item("main", item)
+			and item_drop.can_pickup(ent, player) then
 				collect_item(ent, object:get_pos(), player)
 			else
-				object:setvelocity({x=0,y=0,z=0})
-				ent.physical_state = true
-				ent.object:set_properties({
-					physical = true
-				})
+				-- 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
@@ -193,7 +255,8 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 		for i = 1,#objectlist do
 			local object = objectlist[i]
 			local ent = opt_get_ent(object)
-			if ent then
+			if ent
+			and item_drop.can_pickup(ent, player) then
 				if not inv then
 					inv = player:get_inventory()
 					if not inv then
@@ -211,19 +274,19 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 						flying_item = vector.distance(pos, pos2) > pickup_radius
 					end
 					if not flying_item then
-						-- collect one item at a time to avoid the loud pop
+						-- 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
-					local vel = vector.multiply(
-						vector.subtract(pos, pos2), 3)
+					-- 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:setvelocity(vel)
-					if ent.physical_state then
-						ent.physical_state = false
-						ent.object:set_properties({
-							physical = false
-						})
+					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)
@@ -251,7 +314,7 @@ minetest.settings:get_bool("enable_item_pickup") ~= false then
 	minetest.after(3.0, pickup_step)
 end
 
-if minetest.settings:get_bool("item_drop.enable_item_drop") ~= false or
+if minetest.settings:get_bool("item_drop.enable_item_drop") ~= false and
 minetest.settings:get_bool("enable_item_drop") ~= false
 and not minetest.settings:get_bool("creative_mode") then
 	function minetest.handle_node_drops(pos, drops)
@@ -266,10 +329,16 @@ and not minetest.settings:get_bool("creative_mode") then
 				name = item:get_name()
 			end
 
+			-- Sometimes nothing should be dropped
+			if name == ""
+			or not minetest.registered_nodes[name] then
+				count = 0
+			end
+
 			for _ = 1,count do
 				local obj = minetest.add_item(pos, name)
 				if not obj then
-					error("Couldn't spawn item")
+					error("Couldn't spawn item " .. name .. ", drops: " .. dump(drops))
 				end
 
 				local vel = obj:getvelocity()
@@ -283,7 +352,7 @@ and not minetest.settings:get_bool("creative_mode") then
 					z = z+1
 				end
 				vel.z = 1 / z
-				obj:setvelocity(vel)
+				obj:set_velocity(vel)
 			end
 		end
 	end
@@ -295,5 +364,5 @@ local msg = "[item_drop] loaded after ca. " .. time .. " seconds."
 if time > 0.01 then
 	print(msg)
 else
-	minetest.log("info", msg)
+	minetest.log("action", msg)
 end

settingtypes.txt

@@ -33,3 +33,6 @@ 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