Add files via upload

cannon.lua

@@ -15,7 +15,7 @@ local function get_cannon_barrel (pos)
 	local barrel_pos = { x = pos.x, y = pos.y + 0.65, z = pos.z }
 	local objects = minetest.get_objects_inside_radius (barrel_pos, 0.1)
 
-	for i = 1, #objects do
+	for i = 1, #objects, 1 do
 		if not objects[i]:is_player () then
 			if objects[i].get_luaentity and objects[i]:get_luaentity () and
 				objects[i]:get_luaentity ().name and

cannon_shell.lua

@@ -153,8 +153,13 @@ local function register_shell (name, description, texture, inventory_image,
 						end
 
 					elseif c.type == "object" then
+						local c_name = (c.object.get_luaentity and
+											 c.object:get_luaentity () and
+											 c.object:get_luaentity ().name) or ""
+						local s_name = (self.name) or ""
+
 						-- explode at this pos
-						if c.object:get_armor_groups ().immortal then
+						if c.object:get_armor_groups ().immortal or s_name == c_name then
 							self.object:set_velocity (c.old_velocity)
 						else
 							explode_pos = vector.new (c.object:get_pos ())
@@ -198,7 +203,6 @@ local function register_shell (name, description, texture, inventory_image,
 				local obj = minetest.add_entity (spawn_pos, name.."_entity")
 
 				if obj then
-					obj:set_armor_groups ({ immortal = 1 })
 					obj:set_acceleration ({ x = 0, y = -9.81, z = 0 })
 					obj:set_rotation (vector.dir_to_rotation (vector.multiply (spawner_dir, shell_speed)))
 					obj:set_velocity (vector.multiply (spawner_dir, shell_speed))

change.log

@@ -135,3 +135,12 @@ v0.1.23
 *	Fixed conduits sending items in groups.
 *	Fixed player attached to controller moving forever when they get blown up.
 *	Fixed pistons being powered from the pusher side.
+
+
+v0.1.24
+*	Limited requested count from storage indexer from digilines message to max stack.
+*	Fixed receptor state in detector.
+*	Fixed receptor state in digiswitch.
+*	Fixed bug in utils.is_same_item ().
+*	Added force field generators.
+*	Removed immortal from cannon shells (shells test for same type of shell and ignore).

crafting.lua

@@ -61,6 +61,26 @@ minetest.register_craft( {
 })
 
 
+minetest.register_craft( {
+	output = "lwcomponents:force_field",
+	recipe = {
+		{ "default:steel_ingot", "default:mese_crystal", "group:wood" },
+		{ "default:mese_crystal", "default:diamondblock", "default:mese_crystal" },
+		{ "default:stone", "default:mese_crystal", "default:chest" }
+	},
+})
+
+
+minetest.register_craft( {
+	output = "lwcomponents:force_field_locked",
+	recipe = {
+		{ "default:steel_ingot", "default:mese_crystal", "group:wood" },
+		{ "default:mese_crystal", "default:diamondblock", "default:mese_crystal" },
+		{ "default:stone", "default:mese_crystal", "default:chest_locked" }
+	},
+})
+
+
 minetest.register_craft( {
 	output = "lwcomponents:cannon_shell 10",
 	recipe = {

detector.lua

@@ -18,6 +18,12 @@ local function mesecons_on (pos)
 		if meta:get_int ("power_on") == 0 then
 			utils.mesecon_receptor_on (pos, utils.mesecon_default_rules)
 			meta:set_int ("power_on", 1)
+			local node = utils.get_far_node (pos)
+
+			if node then
+				node.param1 = 1
+				minetest.swap_node (pos, node)
+			end
 		end
 	end
 end
@@ -31,6 +37,12 @@ local function mesecons_off (pos)
 		if meta:get_int ("power_on") ~= 0 then
 			utils.mesecon_receptor_off (pos, utils.mesecon_default_rules)
 			meta:set_int ("power_on", 0)
+			local node = utils.get_far_node (pos)
+
+			if node then
+				node.param1 = 0
+				minetest.swap_node (pos, node)
+			end
 		end
 	end
 end
@@ -692,8 +704,10 @@ local function mesecon_support ()
 		{
 			receptor =
 			{
-				state = utils.mesecon_state_off,
+				state = utils.mesecon_state_on,
-				rules = utils.mesecon_default_rules
+				rules = function (node)
+					return (node.param1 == 0 and { }) or utils.mesecon_default_rules
+				end
 			}
 		}
 	end

digiswitch.lua

@@ -13,7 +13,7 @@ local function get_mesecon_rule_for_side (side)
 	if side == "white" then
 		return { { x = 0, y = 1, z = 0 } }
 	elseif side == "black" then
-		return { { x = 0, y = -1, z = 0 } } -- down doesn't work
+		return { { x = 0, y = -1, z = 0 } }
 	elseif side == "red" then
 		return { { x = -1, y = 0, z = 0 } }
 	elseif side == "green" then
@@ -32,13 +32,106 @@ local function get_mesecon_rule_for_side (side)
 			{ x =  0, y =  0, z =  1 },
 			{ x =  0, y =  0, z = -1 },
 			{ x =  0, y =  1, z =  0 },
-			{ x =  0, y = -1, z =  0 }, -- down doesn't work
+			{ x =  0, y = -1, z =  0 },
 		}
 	end
 end
 
 
 
+local side_bits =
+{
+	["white"]	= 0,
+	["black"]	= 1,
+	["red"]		= 2,
+	["green"]	= 3,
+	["blue"]		= 4,
+	["yellow"]	= 5
+}
+
+
+
+local function get_side_bit (side)
+	if side then
+		if side == "switch" then
+			return 64
+		end
+
+		local bit = side_bits[side]
+
+		if bit then
+			return math.pow (2, bit)
+		end
+	end
+
+	return 63
+end
+
+
+
+local function is_side_on (bits, side)
+	local bit = get_side_bit (side)
+
+	for i = 0, 6, 1 do
+		if (bit % 2) == 1 and (bits % 2) ~= 1 then
+			return false
+		end
+
+		bit = math.floor (bit / 2)
+		bits = math.floor (bits / 2)
+	end
+
+	return true
+end
+
+
+
+local function set_side_bit (bits, side, on)
+	local bit = get_side_bit (side)
+	local result = 0
+
+	for i = 0, 6, 1 do
+		if (bit % 2) == 1 then
+			if on then
+				result = result + math.pow (2, i)
+			end
+		elseif (bits % 2) == 1 then
+			result = result + math.pow (2, i)
+		end
+
+		bit = math.floor (bit / 2)
+		bits = math.floor (bits / 2)
+	end
+
+	return result
+end
+
+
+
+local function switch_on (pos, side)
+	utils.mesecon_receptor_on (pos, get_mesecon_rule_for_side (side))
+
+	local node = utils.get_far_node (pos)
+	if node then
+		node.param1 = set_side_bit (node.param1, side, true)
+		minetest.swap_node (pos, node)
+	end
+end
+
+
+
+local function switch_off (pos, side)
+	utils.mesecon_receptor_off (pos, get_mesecon_rule_for_side (side))
+
+	local node = utils.get_far_node (pos)
+	if node then
+		node.param1 = set_side_bit (node.param1, side, false)
+		minetest.swap_node (pos, node)
+	end
+end
+
+
+
 local function digilines_support ()
 	return
 	{
@@ -80,9 +173,9 @@ local function digilines_support ()
 							end
 
 							if words[1] == "on" then
-								utils.mesecon_receptor_on (pos, get_mesecon_rule_for_side (words[2]))
+								switch_on (pos, words[2])
 							elseif words[1] == "off" then
-								utils.mesecon_receptor_off (pos, get_mesecon_rule_for_side (words[2]))
+								switch_off (pos, words[2])
 							end
 						end
 					end
@@ -99,16 +192,32 @@ local function mesecon_support ()
 	{
 		receptor =
 		{
-			state = mesecon.state.off,
+			state = mesecon.state.on,
-			rules =
+
-			{
+			rules = function (node)
-				{ x =  1, y =  0, z =  0 },
+				if is_side_on (node.param1, "switch") then
-				{ x = -1, y =  0, z =  0 },
+					return utils.mesecon_default_rules
-				{ x =  0, y =  0, z =  1 },
+				end
-				{ x =  0, y =  0, z = -1 },
+
-				{ x =  0, y =  1, z =  0 },
+				local r = { }
-				{ x =  0, y = -1, z =  0 }, -- down doesn't work
+				local sides =
-			}
+				{
+					"white",
+					"black",
+					"red",
+					"green",
+					"blue",
+					"yellow",
+				}
+
+				for _, side in ipairs (sides) do
+					if is_side_on (node.param1, side) then
+						r[#r + 1] = get_mesecon_rule_for_side (side)[1]
+					end
+				end
+
+				return r
+			end
 		},
 	}
 end
@@ -124,7 +233,7 @@ local function on_construct (pos)
 		local formspec =
 		"formspec_version[3]\n"..
 		"size[6.0,4.0]\n"..
-		"field[1.0,0.8;4.0,1.0;channel;Channel;]\n"..
+		"field[1.0,0.8;4.0,1.0;channel;Channel;${channel}]\n"..
 		"button_exit[2.0,2.5;2.0,1.0;set;Set]\n"
 
 		meta:set_string ("formspec", formspec)
@@ -145,14 +254,6 @@ local function on_receive_fields (pos, formname, fields, sender)
 
 		if meta then
 			meta:set_string ("channel", fields.channel or "")
-
-			local formspec =
-			"formspec_version[3]\n"..
-			"size[6.0,4.0]\n"..
-			"field[1.0,0.8;4.0,1.0;channel;Channel;"..minetest.formspec_escape (meta:get_string ("channel")).."]\n"..
-			"button_exit[2.0,2.5;2.0,1.0;set;Set]\n"
-
-			meta:set_string ("formspec", formspec)
 		end
 	end
 end
@@ -172,6 +273,8 @@ minetest.register_node ("lwcomponents:digiswitch", {
          {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
       }
    },
+	paramtype = "none",
+	param1 = 0,
 	groups = { cracky = 2, oddly_breakable_by_hand = 2 },
 	sounds = default.node_sound_stone_defaults (),
 	mesecons = mesecon_support (),

docs/force_field_generator.txt

@@ -0,0 +1,67 @@
+Force Field Generator
+---------------------
+
+Force field generators repel players and mobs within a given radius from
+the generator. The radius can be 5 to 25 and is in all directions. An
+'electric dome' appears marking the field. The generator consumes fuel
+relative to the radius. A radius of 25 uses 1 coal in 10 seconds, 5 uses
+1 coal in 50 seconds. Each time an entity is repelled it cost 1 fuel value
+(1/40 of a coal). Any players or mobs permitted inside the field can be
+added to the Permit list. Each entry must be on a new line with no extra
+spaces. Empty lines (not even a space) are ignored. The mob's registered
+name or tag can be used. The owner of a locked generator will not be
+repelled. When something is repelled it takes a small amount of damage.
+
+Only the owner can dig or access the form of the locked version.
+
+UI
+Channel - digilines channel of generator.
+Radius - the node radius to repel, in every direction. 5 to 25.
+Permit - list of players or mobs to allow within field. Mobs can be registered
+			entity name or tag.
+Start/Stop button - starts and stops the field.
+Fuel - single slot inventory.
+Player inventor - 32 slot inventory at bottom.
+
+
+Mesecons
+	Turns the generator on and off.
+
+
+Digilines messages
+
+"start"
+	Start the generator.
+
+"stop"
+	Stop the generator.
+
+"radius n"
+	Set the radius to n, where n is a number between 5 to 25.
+
+"add <name>"
+	Add a name to the permit list.
+
+"remove <name>"
+	Remove a name from the permit list.
+
+"status"
+	Query the status of the generator. The generator will send a digilines
+	message with its own channel as the following table:
+	{
+		action = "status",
+		state = "on" | "off",
+		radius = n, -- radius as number
+		permit =
+		{
+			<list of names>
+		},
+		fuel =
+		{
+			name = name, -- eg. "default:coal_lump", will be "" if empty
+			count = n, -- count of fuel
+		}
+	}
+
+
+Hoppers and pipeworks tubes can be used to push or pull the fuel.

docs/storage.txt

@@ -70,7 +70,8 @@ or
 }
 	Moves the item/s to the output. If count is omitted defaults to 1. If
 	the requested amount is greater than in storage, only the stored amount
-	is moved.
+	is moved. If the requested amount is greater than a full stack of the
+	item a full stack is moved.
 
 
 "inventory"

explode.lua

@@ -70,24 +70,6 @@ end
 
 
 
---local function is_same_item (stack1, stack2)
-	--local copy1 = ItemStack (stack1)
-	--local copy2 = ItemStack (stack2)
-
-	--if copy1 and copy2 then
-		--copy1:set_count (1)
-		--copy2:set_count (1)
-
-		--if copy1:to_string () == copy2:to_string () then
-			--return true
-		--end
-	--end
-
-	--return false
---end
-
-
-
 local function dig_node (pos, toolname)
 	local node = utils.get_far_node (pos)
 	local dig = false
@@ -335,7 +317,7 @@ local function add_effects (pos, radius, drops)
 		collisiondetection = false,
 		vertical = false,
 		texture = "lwcomponents_boom.png",
-		glow = 15,
+		glow = 14,
 	})
 
 	minetest.add_particlespawner ({

init.lua

@@ -1,4 +1,4 @@
-local version = "0.1.23"
+local version = "0.1.24"
 local mod_storage = minetest.get_mod_storage ()
 
 
@@ -38,6 +38,7 @@ loadfile (modpath.."/pistons.lua") (utils)
 loadfile (modpath.."/through_wire.lua") (utils)
 loadfile (modpath.."/camera.lua") (utils)
 loadfile (modpath.."/storage.lua") (utils)
+loadfile (modpath.."/force_field.lua") (utils)
 loadfile (modpath.."/extras.lua") (utils)
 loadfile (modpath.."/digiswitch.lua") (utils)
 loadfile (modpath.."/movefloor.lua") (utils)

license.txt

@@ -15,6 +15,8 @@ https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 
 Mesecons through wire code was adapted from mesecons_receiver.
 
+Fragments of code were gleaned from tnt mod.
+
 
 
 lwsiren-buzz.ogg
@@ -70,6 +72,14 @@ sound effects free of charge and royalty free in your multimedia projects
 for commercial or non-commercial purposes.
 
 
+lwforce_field_zap.ogg
+---------------------
+https://orangefreesounds.com/electricity-zap/
+
+Licence: The sound effect is permitted for non-commercial use under license
+Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
+
+
 
 Media license
 -------------

readme.txt

@@ -13,7 +13,7 @@ CC BY-SA 3.0
 
 Version
 =======
-0.1.23
+0.1.24
 
 
 Minetest Version
@@ -69,6 +69,7 @@ Various components for mesecons and digilines.
 *	Movefloor, similar to vertical mesecons movestone.
 *	Camera, takes a representative image.
 *	Storage, indexed storage units.
+*	Force Field Generator, repels players and mobs within a radius.
 *	Mesecons Through Wire, transmits through 1 to 2 solid blocks.
 *	Solid color conductor blocks, same as Solid Color Block but also mesecons
 	and digilines conductor.

storage.lua

@@ -389,6 +389,11 @@ local function output_items (pos, name, count)
 	end
 
 	local stack = ItemStack (name)
+
+	if stack:get_stack_max () < count then
+		count = stack:get_stack_max ()
+	end
+
 	stack:set_count (count)
 
 	while stack:get_count () > 0 do
@@ -738,7 +743,7 @@ local function get_formspec_list (pos)
 		}
 	end
 
-	local foo = table.sort (list , function (e1, e2)
+	table.sort (list , function (e1, e2)
 		return (e1.description:lower () < e2.description:lower ())
 	end)
 

utils.lua

@@ -226,8 +226,8 @@ end
 
 
 function utils.is_same_item (item1, item2)
-	local copy1 = ItemStack (stack1)
+	local copy1 = ItemStack (item1)
-	local copy2 = ItemStack (stack2)
+	local copy2 = ItemStack (item2)
 
 	if copy1 and copy2 then
 		copy1:set_count (1)