Add dispenser

The dispenser is an automated item dropper.

default_settings.txt

@@ -3,6 +3,7 @@
 pipeworks.enable_pipes = true
 pipeworks.enable_autocrafter = true
 pipeworks.enable_deployer = true
+pipeworks.enable_dispenser = true
 pipeworks.enable_node_breaker = true
 pipeworks.enable_teleport_tube = true
 pipeworks.enable_pipe_devices = true

dispenser.lua

@@ -0,0 +1,200 @@
+minetest.register_craft({
+	output = "pipeworks:dispenser_off",
+	recipe = {
+		{ "default:desert_sand", "default:chest",    "default:desert_sand" },
+		{ "default:stone",       "mesecons:piston",  "default:stone"       },
+		{ "default:stone",       "mesecons:mesecon", "default:stone"       },
+	}
+})
+
+local function delay(x)
+	return (function() return x end)
+end
+
+local function dispenser_on(pos, node)
+	if node.name ~= "pipeworks:dispenser_off" then
+		return
+	end
+
+	node.name = "pipeworks:dispenser_on"
+	minetest.swap_node(pos, node)
+	nodeupdate(pos)
+
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	local invlist = inv:get_list("main")
+	for i, stack in ipairs(invlist) do
+		if stack:get_name() ~= nil and stack:get_name() ~= "" then
+			local dir = minetest.facedir_to_dir(node.param2)
+			local pitch
+			local yaw
+			if dir.z < 0 then
+				yaw = 0
+				pitch = 0
+			elseif dir.z > 0 then
+				yaw = math.pi
+				pitch = 0
+			elseif dir.x < 0 then
+				yaw = 3*math.pi/2
+				pitch = 0
+			elseif dir.x > 0 then
+				yaw = math.pi/2
+				pitch = 0
+			elseif dir.y > 0 then
+				yaw = 0
+				pitch = -math.pi/2
+			else
+				yaw = 0
+				pitch = math.pi/2
+			end
+			local dropper_pos = {x = pos.x, y = pos.y - 1.5, z = pos.z} -- Player height
+			local dropper = {
+				get_inventory_formspec = delay(meta:get_string("formspec")),
+				get_look_dir = delay({x = -dir.x, y = -dir.y, z = -dir.z}),
+				get_look_pitch = delay(pitch),
+				get_look_yaw = delay(yaw),
+				get_player_control = delay({jump=false, right=false, left=false, LMB=false, RMB=false, sneak=true, aux1=false, down=false, up=false}),
+				get_player_control_bits = delay(0),
+				get_player_name = delay(":pipeworks:"..minetest.pos_to_string(pos)),
+				is_player = delay(true),
+				is_fake_player = true,
+				set_inventory_formspec = delay(),
+				getpos = delay(dropper_pos),
+				get_hp = delay(20),
+				get_inventory = delay(inv),
+				get_wielded_item = delay(stack),
+				get_wield_index = delay(i),
+				get_wield_list = delay("main"),
+				moveto = delay(),
+				punch = delay(),
+				remove = delay(),
+				right_click = delay(),
+				setpos = delay(),
+				set_hp = delay(),
+				set_properties = delay(),
+				set_wielded_item = function(self, item) inv:set_stack("main", i, item) end,
+				set_animation = delay(),
+				set_attach = delay(),
+				set_detach = delay(),
+				set_bone_position = delay(),
+			}
+			local stack2
+			if minetest.registered_items[stack:get_name()] then
+				stack2 = minetest.registered_items[stack:get_name()].on_drop(stack, dropper, dropper_pos) or stack
+			end
+			inv:set_stack("main", i, stack2)
+			return
+		end
+	end
+end
+
+local dispenser_off = function(pos, node)
+	if node.name == "pipeworks:dispenser_on" then
+		node.name = "pipeworks:dispenser_off"
+		minetest.swap_node(pos, node)
+		nodeupdate(pos)
+	end
+end
+
+for _, state in ipairs({ "off", "on" }) do
+	local grps = { snappy=2, choppy=2, oddly_breakable_by_hand=2, mesecon=2, tubedevice=1, tubedevice_receiver=1 }
+	if state == "on" then grps.not_in_creative_inventory = 1 end
+	minetest.register_node("pipeworks:dispenser_"..state, {
+		description = "Dispenser",
+		tile_images = {
+			"pipeworks_dispenser_top.png",
+			"pipeworks_dispenser_bottom.png",
+			"pipeworks_dispenser_side2.png",
+			"pipeworks_dispenser_side1.png",
+			"pipeworks_dispenser_back.png",
+			"pipeworks_dispenser_front_"..state..".png",
+		},
+		mesecons = {
+			effector = {
+				rules = pipeworks.rules_all,
+				action_on = dispenser_on,
+				action_off = dispenser_off,
+			},
+		},
+		tube={insert_object=function(pos,node,stack,direction)
+				local meta=minetest.get_meta(pos)
+				local inv=meta:get_inventory()
+				return inv:add_item("main",stack)
+			end,
+			can_insert=function(pos,node,stack,direction)
+				local meta=minetest.get_meta(pos)
+				local inv=meta:get_inventory()
+				return inv:room_for_item("main",stack)
+			end,
+			input_inventory="main",
+			connect_sides={back=1},
+			can_remove = function(pos, node, stack, dir)
+				return stack:get_count()
+			end},
+		is_ground_content = true,
+		paramtype2 = "facedir",
+		tubelike = 1,
+		groups = grps,
+		sounds = default.node_sound_stone_defaults(),
+		on_construct = function(pos)
+			local meta = minetest.get_meta(pos)
+			meta:set_string("formspec",
+					"invsize[8,9;]"..
+					"label[0,0;Dispenser]"..
+					"list[current_name;main;4,1;3,3;]"..
+					"list[current_player;main;0,5;8,4;]")
+			meta:set_string("infotext", "Dispenser")
+			local inv = meta:get_inventory()
+			inv:set_size("main", 3*3)
+		end,
+		can_dig = function(pos,player)
+			local meta = minetest.get_meta(pos)
+			local inv = meta:get_inventory()
+			return inv:is_empty("main")
+		end,
+		after_place_node = function (pos, placer)
+			pipeworks.scan_for_tube_objects(pos, placer)
+			local placer_pos = placer:getpos()
+
+			--correct for the player's height
+			if placer:is_player() then placer_pos.y = placer_pos.y + 1.5 end
+
+			--correct for 6d facedir
+			if placer_pos then
+				local dir = {
+					x = pos.x - placer_pos.x,
+					y = pos.y - placer_pos.y,
+					z = pos.z - placer_pos.z
+				}
+				local node = minetest.get_node(pos)
+				node.param2 = minetest.dir_to_facedir(dir, true)
+				minetest.set_node(pos, node)
+				minetest.log("action", "real (6d) facedir: " .. node.param2)
+			end
+
+			minetest.get_meta(pos):set_string("owner", placer:get_player_name())
+		end,
+		after_dig_node = pipeworks.scan_for_tube_objects,
+		allow_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
+			local meta = minetest.get_meta(pos)
+			if player:get_player_name() ~= meta:get_string("owner") and meta:get_string("owner") ~= "" then
+				return 0
+			end
+			return count
+		end,
+		allow_metadata_inventory_put = function(pos, listname, index, stack, player)
+			local meta = minetest.get_meta(pos)
+			if player:get_player_name() ~= meta:get_string("owner") and meta:get_string("owner") ~= "" then
+				return 0
+			end
+			return stack:get_count()
+		end,
+		allow_metadata_inventory_take = function(pos, listname, index, stack, player)
+			local meta = minetest.get_meta(pos)
+			if player:get_player_name() ~= meta:get_string("owner") and meta:get_string("owner") ~= "" then
+				return 0
+			end
+			return stack:get_count()
+		end,
+	})
+end

init.lua

@@ -121,6 +121,7 @@ if pipeworks.enable_pipe_devices then dofile(pipeworks.modpath.."/devices.lua")
 if pipeworks.enable_redefines then dofile(pipeworks.modpath.."/compat.lua") end
 if pipeworks.enable_autocrafter then dofile(pipeworks.modpath.."/autocrafter.lua") end
 if pipeworks.enable_deployer then dofile(pipeworks.modpath.."/deployer.lua") end
+if pipeworks.enable_dispenser then dofile(pipeworks.modpath.."/dispenser.lua") end
 
 if pipeworks.enable_node_breaker then
 	dofile(pipeworks.modpath.."/node_breaker.lua")