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-- xPanes mod by xyz
-- made into xbars mod by Melkor
-- and finaly made into bedrock mod by ShadowNinja
local function rshift(x, by)
return math.floor(x / 2 ^ by)
end
local directions = {
{x = 1, y = 0, z = 0},
{x = 0, y = 0, z = 1},
{x = -1, y = 0, z = 0},
{x = 0, y = 0, z = -1},
}
local function update_bar(pos)
if minetest.env:get_node(pos).name:find("bedrock:bar") == nil then
return
end
local sum = 0
for i = 1, 4 do
local node = minetest.env:get_node({x = pos.x + directions[i].x, y = pos.y + directions[i].y, z = pos.z + directions[i].z})
if minetest.registered_nodes[node.name] and (minetest.registered_nodes[node.name].walkable ~= false) then
sum = sum + 2 ^ (i - 1)
end
end
if sum == 0 then
sum = 15
end
minetest.env:add_node(pos, {name = "bedrock:bar_"..sum})
end
local function update_nearby_bars(pos)
for i = 1,4 do
update_bar({x = pos.x + directions[i].x, y = pos.y + directions[i].y, z = pos.z + directions[i].z})
end
end
local half_blocks = {
{0, -0.5, -0.06, 0.5, 0.5, 0.06},
{-0.06, -0.5, 0, 0.06, 0.5, 0.5},
{-0.5, -0.5, -0.06, 0, 0.5, 0.06},
{-0.06, -0.5, -0.5, 0.06, 0.5, 0}
}
local full_blocks = {
{-0.5, -0.5, -0.06, 0.5, 0.5, 0.06},
{-0.06, -0.5, -0.5, 0.06, 0.5, 0.5}
}
for i = 1, 15 do
local need = {}
local cnt = 0
for j = 1, 4 do
if rshift(i, j - 1) % 2 == 1 then
need[j] = true
cnt = cnt + 1
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])
end
local texture = "bedrock_bar.png"
if cnt == 1 then
texture = "bedrock_bar_half.png"
end
minetest.register_node("bedrock:bar_"..i, {
drawtype = "nodebox",
tiles = {"bedrock_bar_white.png", "bedrock_bar_white.png", texture},
paramtype = "light",
groups = {unbreakable = 1},
drop = "bedrock:bar",
node_box = {
type = "fixed",
fixed = take
},
selection_box = {
type = "fixed",
fixed = take
}
})
end
minetest.register_node("bedrock:bar", {
description = "Bedrock Bar",
tiles = {"bedrock_bar.png"},
inventory_image = "bedrock_bar.png",
wield_image = "bedrock_bar.png",
node_placement_prediction = "",
on_construct = update_bar
})
minetest.register_on_placenode(update_nearby_bars)
minetest.register_on_dignode(update_nearby_bars)
minetest.register_craft({
output = 'bedrock:bar 16',
recipe = {
{'bedrock:bedrock', '', 'bedrock:bedrock'},
{'bedrock:bedrock', '', 'bedrock:bedrock'},
{'bedrock:bedrock', '', 'bedrock:bedrock'}
}
})
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