mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-22 07:23:00 +00:00
add //maze command
This commit is contained in:
parent
c4d6e6e716
commit
cf4f602f38
GPG key ID:
1BE5172E637709C2
3 changed files with 238 additions and 0 deletions
|
|
@ -12,3 +12,4 @@ dofile(minetest.get_modpath("worldeditadditions") .. "/floodfill.lua")
|
|||
dofile(minetest.get_modpath("worldeditadditions") .. "/overlay.lua")
|
||||
dofile(minetest.get_modpath("worldeditadditions") .. "/ellipsoid.lua")
|
||||
dofile(minetest.get_modpath("worldeditadditions") .. "/torus.lua")
|
||||
dofile(minetest.get_modpath("worldeditadditions") .. "/maze.lua")
|
||||
|
|
|
|||
164
worldeditadditions/maze.lua
Normal file
164
worldeditadditions/maze.lua
Normal file
|
|
@ -0,0 +1,164 @@
|
|||
--- Generates a maze.
|
||||
-- Algorithm origin: https://starbeamrainbowlabs.com/blog/article.php?article=posts/070-Language-Review-Lua.html
|
||||
-- @module worldeditadditions.maze
|
||||
|
||||
----------------------------------
|
||||
-- function to print out the world
|
||||
----------------------------------
|
||||
function printspace(space, w, h)
|
||||
for y = 0, h - 1, 1 do
|
||||
local line = ""
|
||||
for x = 0, w - 1, 1 do
|
||||
line = line .. space[y][x]
|
||||
end
|
||||
minetest.log("action", line)
|
||||
end
|
||||
end
|
||||
|
||||
function generate_maze(seed, width, height)
|
||||
minetest.log("action", "width: "..width..", height: "..height)
|
||||
math.randomseed(seed) -- seed the random number generator with the system clock
|
||||
|
||||
width = width - 1
|
||||
height = height - 1
|
||||
|
||||
local world = {}
|
||||
for y = 0, height, 1 do
|
||||
world[y] = {}
|
||||
for x = 0, width, 1 do
|
||||
world[y][x] = "#"
|
||||
end
|
||||
end
|
||||
|
||||
-- do a random walk to create pathways
|
||||
local nodes = {} -- the nodes left that we haven't investigated
|
||||
local curnode = 1 -- the node we are currently operating on
|
||||
local cx, cy = 1, 1 -- our current position
|
||||
table.insert(nodes, { x = cx, y = cy })
|
||||
world[cy][cx] = " "
|
||||
while #nodes > 0 do
|
||||
-- io.write("Nodes left: " .. curnode .. "\r")
|
||||
--print("Nodes left: " .. #nodes)
|
||||
--print("Currently at (" .. cx .. ", " .. cy .. ")")
|
||||
|
||||
local directions = "" -- the different directions we can move
|
||||
if cy - 2 > 0 and world[cy - 2][cx] == "#" then
|
||||
directions = directions .. "u"
|
||||
end
|
||||
if cy + 2 < height and world[cy + 2][cx] == "#" then
|
||||
directions = directions .. "d"
|
||||
end
|
||||
if cx - 2 > 0 and world[cy][cx - 2] == "#" then
|
||||
directions = directions .. "l"
|
||||
end
|
||||
if cx + 2 < width and world[cy][cx + 2] == "#" then
|
||||
directions = directions .. "r"
|
||||
end
|
||||
--print("radar output: '" .. directions .. "' (length: " .. #directions .. "), curnode: " .. curnode)
|
||||
if #directions > 0 then
|
||||
-- we still have somewhere that we can go
|
||||
--print("This node is not a dead end yet.")
|
||||
local curdirnum = math.random(0, #directions)
|
||||
local curdir = string.sub(directions, curdirnum, curdirnum)
|
||||
if curdir == "u" then
|
||||
world[cy - 1][cx] = " "
|
||||
world[cy - 2][cx] = " "
|
||||
cy = cy - 2
|
||||
elseif curdir == "d" then
|
||||
world[cy + 1][cx] = " "
|
||||
world[cy + 2][cx] = " "
|
||||
cy = cy + 2
|
||||
elseif curdir == "l" then
|
||||
world[cy][cx - 1] = " "
|
||||
world[cy][cx - 2] = " "
|
||||
cx = cx - 2
|
||||
elseif curdir == "r" then
|
||||
world[cy][cx + 1] = " "
|
||||
world[cy][cx + 2] = " "
|
||||
cx = cx + 2
|
||||
end
|
||||
|
||||
table.insert(nodes, { x = cx, y = cy })
|
||||
else
|
||||
--print("The node at " .. curnode .. " is a dead end.")
|
||||
table.remove(nodes, curnode)
|
||||
if #nodes > 0 then
|
||||
--print("performing teleport.");
|
||||
curnode = math.random(1, #nodes)
|
||||
--print("New node: " .. curnode)
|
||||
-- print("Nodes table: ")
|
||||
-- print_r(nodes)
|
||||
cx = nodes[curnode]["x"]
|
||||
cy = nodes[curnode]["y"]
|
||||
else
|
||||
--print("Maze generation complete, no teleportation necessary.")
|
||||
end
|
||||
end
|
||||
--printspace(world, width, height)
|
||||
end
|
||||
|
||||
return world
|
||||
end
|
||||
|
||||
-- local world = maze(os.time(), width, height)
|
||||
|
||||
function worldedit.maze(pos1, pos2, target_node, seed)
|
||||
pos1, pos2 = worldedit.sort_pos(pos1, pos2)
|
||||
-- pos2 will always have the highest co-ordinates now
|
||||
|
||||
-- getExtent() returns the number of nodes in the VoxelArea, which might be larger than we actually asked for
|
||||
local extent = {
|
||||
x = (pos2.x - pos1.x) + 1,
|
||||
y = (pos2.y - pos1.y) + 1,
|
||||
z = (pos2.z - pos1.z) + 1
|
||||
}
|
||||
minetest.log("action", "extent: ("..extent.x..", "..extent.y..", "..extent.z..")")
|
||||
|
||||
if extent.x == 0 or extent.y == 0 or extent.z == 0 then
|
||||
minetest.log("info", "[worldeditadditions/maze] error: either x, y, or z of the extent was zero")
|
||||
return 0
|
||||
end
|
||||
|
||||
-- Fetch the nodes in the specified area
|
||||
local manip, area = worldedit.manip_helpers.init(pos1, pos2)
|
||||
local data = manip:get_data()
|
||||
|
||||
local node_id_air = minetest.get_content_id("air")
|
||||
local node_id_target = minetest.get_content_id(target_node)
|
||||
|
||||
-- minetest.log("action", "pos1: " .. worldeditadditions.vector.tostring(pos1))
|
||||
-- minetest.log("action", "pos2: " .. worldeditadditions.vector.tostring(pos2))
|
||||
|
||||
|
||||
minetest.log("action", "Generating "..extent.x.."x"..extent.z.." maze (depth "..extent.z..") from pos1 " .. worldeditadditions.vector.tostring(pos1).." to pos2 "..worldeditadditions.vector.tostring(pos2))
|
||||
|
||||
local maze = generate_maze(seed, extent.z, extent.x) -- x & need to be the opposite way around to how we index it
|
||||
printspace(maze, extent.z, extent.x)
|
||||
|
||||
-- z y x is the preferred loop order, but that isn't really possible here
|
||||
|
||||
for z = pos2.z, pos1.z, - 1 do
|
||||
for x = pos2.x, pos1.x, - 1 do
|
||||
for y = pos2.y, pos1.y, - 1 do
|
||||
local maze_x = (x - pos1.x) -- - 1
|
||||
local maze_z = (z - pos1.z) -- - 1
|
||||
if maze_x < 0 then maze_x = 0 end
|
||||
if maze_z < 0 then maze_z = 0 end
|
||||
|
||||
minetest.log("action", "x: "..x..", y: "..y..", z: "..z..", pos x: "..maze_x..", pos z: "..maze_z)
|
||||
minetest.log("action", "value: "..maze[maze_x][maze_z])
|
||||
|
||||
if maze[maze_x][maze_z] == "#" then
|
||||
data[area:index(x, y, z)] = node_id_target
|
||||
else
|
||||
data[area:index(x, y, z)] = node_id_air
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
-- Save the modified nodes back to disk & return
|
||||
worldedit.manip_helpers.finish(manip, data)
|
||||
|
||||
return extent.x * extent.y * extent.z
|
||||
end
|
||||
|
|
@ -292,3 +292,76 @@ minetest.register_chatcommand("/hollowtorus", {
|
|||
return math.ceil(2 * math.pi*math.pi * major_radius * minor_radius*minor_radius)
|
||||
end)
|
||||
})
|
||||
|
||||
|
||||
-- ███ ███ █████ ███████ ███████
|
||||
-- ████ ████ ██ ██ ███ ██
|
||||
-- ██ ████ ██ ███████ ███ █████
|
||||
-- ██ ██ ██ ██ ██ ███ ██
|
||||
-- ██ ██ ██ ██ ███████ ███████
|
||||
|
||||
local function parse_params_maze(params_text)
|
||||
if not params_text then
|
||||
return nil, nil, nil
|
||||
end
|
||||
local found, _, replace_node, seed_text = params_text:find("([a-z:_\\-]+)%s+([0-9]+)")
|
||||
|
||||
local has_seed = true
|
||||
|
||||
if found == nil then
|
||||
has_seed = false
|
||||
replace_node = params_text
|
||||
end
|
||||
|
||||
local seed = tonumber(seed_text)
|
||||
|
||||
replace_node = worldedit.normalize_nodename(replace_node)
|
||||
|
||||
return replace_node, seed, has_seed
|
||||
end
|
||||
|
||||
minetest.register_chatcommand("/maze", {
|
||||
params = "<replace_node> [<seed>]",
|
||||
description = "Generates a maze covering the currently selected area with replace_node as the walls. Optionally takes a (integer) seed.",
|
||||
privs = { worldedit = true },
|
||||
func = safe_region(function(name, params_text)
|
||||
local replace_node, seed, has_seed = parse_params_maze(params_text)
|
||||
|
||||
if not replace_node then
|
||||
worldedit.player_notify(name, "Error: Invalid node name.")
|
||||
return false
|
||||
end
|
||||
if not seed and has_seed then
|
||||
worldedit.player_notify(name, "Error: Invalid seed.")
|
||||
return false
|
||||
end
|
||||
|
||||
if not seed then
|
||||
seed = os.time()
|
||||
end
|
||||
|
||||
local start_time = os.clock()
|
||||
local replaced = worldedit.maze(worldedit.pos1[name], worldedit.pos2[name], replace_node, seed)
|
||||
local time_taken = os.clock() - start_time
|
||||
|
||||
worldedit.player_notify(name, replaced .. " nodes replaced in " .. time_taken .. "s")
|
||||
minetest.log("action", name .. " used //maze at " .. worldeditadditions.vector.tostring(worldedit.pos1[name]) .. ", replacing " .. replaced .. " nodes in " .. time_taken .. "s")
|
||||
end, function(name, params_text)
|
||||
local replace_node, seed, has_seed = parse_params_maze(params_text)
|
||||
if not params_text then params_text = "" end
|
||||
|
||||
if not replace_node then
|
||||
worldedit.player_notify(name, "Error: Invalid input '" .. params_text .. "' (specifically the replace node). Try '/help /maze' to learn how to use this command.")
|
||||
return 0
|
||||
end
|
||||
if not seed and has_seed then
|
||||
worldedit.player_notify(name, "Error: Invalid input '" .. params_text .. "' (specifically the seed). Try '/help /maze' to learn how to use this command.")
|
||||
return 0
|
||||
end
|
||||
|
||||
local pos1 = worldedit.pos1[name]
|
||||
local pos2 = worldedit.pos2[name]
|
||||
|
||||
return (pos2.x - pos1.x) * (pos2.y - pos1.y) * (pos1.z - pos2.z)
|
||||
end)
|
||||
})
|
||||
|
|
|
|||
Loading…
Reference in a new issue