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mcl_walls = { }
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local function rshift ( x , by )
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return math.floor ( x / 2 ^ by )
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end
local directions = {
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{ x = 1 , y = 0 , z = 0 } ,
{ x = 0 , y = 0 , z = 1 } ,
{ x = - 1 , y = 0 , z = 0 } ,
{ x = 0 , y = 0 , z = - 1 } ,
{ x = 0 , y = - 1 , z = 0 } ,
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}
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local function update_wall ( pos )
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local thisnode = minetest.get_node ( pos )
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if minetest.get_item_group ( thisnode.name , " wall " ) == 0 then
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return
end
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-- Get the node's base name, including the underscore since we will need it
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local colonpos = thisnode.name : find ( " : " )
local underscorepos
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local itemname , basename , modname
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if colonpos ~= nil then
itemname = thisnode.name : sub ( colonpos + 1 )
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modname = thisnode.name : sub ( 1 , colonpos - 1 )
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end
underscorepos = itemname : find ( " _ " )
if underscorepos == nil then -- New wall
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basename = thisnode.name .. " _ "
else -- Already placed wall
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basename = modname .. " : " .. itemname : sub ( 1 , underscorepos )
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end
local sum = 0
-- Neighbouring walkable nodes
for i = 1 , 4 do
local dir = directions [ i ]
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local node = minetest.get_node ( { x = pos.x + dir.x , y = pos.y + dir.y , z = pos.z + dir.z } )
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local def = minetest.registered_nodes [ node.name ]
if def and def.walkable then
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sum = sum + 2 ^ ( i - 1 )
end
end
-- Torches or walkable nodes above the wall
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local upnode = minetest.get_node ( { x = pos.x , y = pos.y + 1 , z = pos.z } )
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if sum == 5 or sum == 10 then
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local def = minetest.registered_nodes [ upnode.name ]
if ( def and def.walkable ) or upnode.name == " mcl_torches:torch " then
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sum = sum + 11
end
end
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--[[if sum == 0 then
sum = 15
end ] ]
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minetest.add_node ( pos , { name = basename .. sum } )
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end
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local function update_wall_global ( pos )
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for i = 1 , 5 do
local dir = directions [ i ]
update_wall ( { x = pos.x + dir.x , y = pos.y + dir.y , z = pos.z + dir.z } )
end
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end
local half_blocks = {
{ 4 / 16 , - 0.5 , - 3 / 16 , 0.5 , 5 / 16 , 3 / 16 } ,
{ - 3 / 16 , - 0.5 , 4 / 16 , 3 / 16 , 5 / 16 , 0.5 } ,
{ - 0.5 , - 0.5 , - 3 / 16 , - 4 / 16 , 5 / 16 , 3 / 16 } ,
{ - 3 / 16 , - 0.5 , - 0.5 , 3 / 16 , 5 / 16 , - 4 / 16 }
}
local pillar = { - 4 / 16 , - 0.5 , - 4 / 16 , 4 / 16 , 0.5 , 4 / 16 }
local full_blocks = {
{ - 0.5 , - 0.5 , - 3 / 16 , 0.5 , 5 / 16 , 3 / 16 } ,
{ - 3 / 16 , - 0.5 , - 0.5 , 3 / 16 , 5 / 16 , 0.5 }
}
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--[[ Adds a new wall type.
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* nodename : Itemstring of base node to add . Must not contain an underscore
* description : Item description ( tooltip ) , visible to user
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* craft_material : Material for the default crafting recipe ( optional )
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* tiles : Wall textures table
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* inventory_image : Inventory image ( optional )
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* groups : Base group memberships ( optional , default is { pickaxey = 1 } )
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* sounds : Sound table ( optional , default is stone )
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] ]
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function mcl_walls . register_wall ( nodename , description , craft_material , tiles , inventory_image , groups , sounds )
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local base_groups = groups
if not base_groups then
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base_groups = { pickaxey = 1 }
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end
base_groups.wall = 1
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local internal_groups = table.copy ( base_groups )
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internal_groups.not_in_creative_inventory = 1
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local main_node_groups = table.copy ( base_groups )
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main_node_groups.deco_block = 1
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-- TODO: Stop hardcoding blast resistance
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if not sounds then
sounds = mcl_sounds.node_sound_stone_defaults ( )
end
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for i = 0 , 15 do
local need = { }
local need_pillar = false
for j = 1 , 4 do
if rshift ( i , j - 1 ) % 2 == 1 then
need [ j ] = true
end
end
local take = { }
if need [ 1 ] == true and need [ 3 ] == true then
need [ 1 ] = nil
need [ 3 ] = nil
table.insert ( take , full_blocks [ 1 ] )
end
if need [ 2 ] == true and need [ 4 ] == true then
need [ 2 ] = nil
need [ 4 ] = nil
table.insert ( take , full_blocks [ 2 ] )
end
for k in pairs ( need ) do
table.insert ( take , half_blocks [ k ] )
need_pillar = true
end
if i == 15 or i == 0 then need_pillar = true end
if need_pillar then table.insert ( take , pillar ) end
minetest.register_node ( nodename .. " _ " .. i , {
collision_box = {
type = ' fixed ' ,
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fixed = { - 4 / 16 , - 0.5 , - 4 / 16 , 4 / 16 , 1 , 4 / 16 }
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} ,
drawtype = " nodebox " ,
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is_ground_content = false ,
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tiles = tiles ,
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paramtype = " light " ,
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sunlight_propagates = true ,
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groups = internal_groups ,
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d rop = nodename ,
node_box = {
type = " fixed " ,
fixed = take
} ,
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sounds = sounds ,
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_mcl_blast_resistance = 30 ,
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_mcl_hardness = 2 ,
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} )
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-- Add entry alias for the Help
if minetest.get_modpath ( " doc " ) then
doc.add_entry_alias ( " nodes " , nodename , " nodes " , nodename .. " _ " .. i )
end
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end
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minetest.register_node ( nodename .. " _16 " , {
drawtype = " nodebox " ,
collision_box = {
type = ' fixed ' ,
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fixed = { - 4 / 16 , - 0.5 , - 4 / 16 , 4 / 16 , 1 , 4 / 16 }
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} ,
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tiles = tiles ,
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paramtype = " light " ,
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sunlight_propagates = true ,
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is_ground_content = false ,
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groups = internal_groups ,
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drop = nodename ,
node_box = {
type = " fixed " ,
fixed = { pillar , full_blocks [ 1 ] }
} ,
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sounds = sounds ,
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_mcl_blast_resistance = 30 ,
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_mcl_hardness = 2 ,
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} )
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-- Add entry alias for the Help
if minetest.get_modpath ( " doc " ) then
doc.add_entry_alias ( " nodes " , nodename , " nodes " , nodename .. " _16 " )
end
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minetest.register_node ( nodename .. " _21 " , {
drawtype = " nodebox " ,
collision_box = {
type = ' fixed ' ,
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fixed = { - 4 / 16 , - 0.5 , - 4 / 16 , 4 / 16 , 1 , 4 / 16 }
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} ,
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tiles = tiles ,
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paramtype = " light " ,
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sunlight_propagates = true ,
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is_ground_content = false ,
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groups = internal_groups ,
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drop = nodename ,
node_box = {
type = " fixed " ,
fixed = { pillar , full_blocks [ 2 ] }
} ,
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sounds = sounds ,
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_mcl_blast_resistance = 30 ,
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_mcl_hardness = 2 ,
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} )
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-- Add entry alias for the Help
if minetest.get_modpath ( " doc " ) then
doc.add_entry_alias ( " nodes " , nodename , " nodes " , nodename .. " _21 " )
end
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-- Inventory item
minetest.register_node ( nodename , {
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description = description ,
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_doc_items_longdesc = " A piece of wall. It cannot be jumped over with a simple jump. When multiple of these are placed to next to each other, they will automatically build a nice wall structure. " ,
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paramtype = " light " ,
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sunlight_propagates = true ,
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is_ground_content = false ,
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groups = main_node_groups ,
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tiles = tiles ,
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inventory_image = inventory_image ,
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stack_max = 64 ,
drawtype = " nodebox " ,
node_box = {
type = " fixed " ,
fixed = pillar
} ,
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collision_box = {
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type = ' fixed ' ,
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fixed = { - 4 / 16 , - 0.5 , - 4 / 16 , 4 / 16 , 1 , 4 / 16 }
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} ,
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collisionbox = { - 0.2 , 0 , - 0.2 , 0.2 , 1.4 , 0.2 } ,
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on_construct = update_wall ,
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sounds = sounds ,
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_mcl_blast_resistance = 30 ,
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_mcl_hardness = 2 ,
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} )
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if craft_material then
minetest.register_craft ( {
output = nodename .. " 6 " ,
recipe = {
{ craft_material , craft_material , craft_material } ,
{ craft_material , craft_material , craft_material } ,
}
} )
end
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end
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-- Cobblestone wall
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mcl_walls.register_wall ( " mcl_walls:cobble " , " Cobblestone Wall " , " mcl_core:cobble " , { " default_cobble.png " } )
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-- Mossy wall
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mcl_walls.register_wall ( " mcl_walls:mossycobble " , " Mossy Cobblestone Wall " , " mcl_core:mossycobble " , { " default_mossycobble.png " } )
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minetest.register_on_placenode ( update_wall_global )
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minetest.register_on_dignode ( update_wall_global )