mtcontrib/Minetest-WorldEdit
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Fix worldedit.spiral and the correspondign chat command, //spiral.

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This commit is contained in:
Brett O'Donnell
2012-09-26 18:36:11 -04:00
committed by Anthony Zhang
parent 382c57d008
commit a82ab9176f
3 changed files with 131 additions and 26 deletions
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13
README.md
View File

@@ -133,6 +133,13 @@ Add pyramid at WorldEdit position 1 with height <height>, composed of <node>.
//pyramid 5 default:glass
//pyramid 2 stone
### //spiral <width> <height> <spacer> <node>
Add spiral at WorldEdit position 1 with width <width>, height <height>, space between walls <spacer>, composed of <node>.
//spiral 20 5 3 dirt
//spiral 5 2 1 default:glass
//spiral 7 1 5 stone
### //copy x/y/z/? <amount>
@@ -274,6 +281,12 @@ Adds a pyramid at `pos` with height `height`.
Returns the number of nodes added.
### worldedit.spiral(pos, width, height, spacer, nodename)
Adds a spiral at `pos` with width `width`, height `height`, space between walls `spacer`, composed of `nodename`.
Returns the number of nodes added.
### worldedit.copy(pos1, pos2, axis, amount)
Copies the region defined by positions `pos1` and `pos2` along the `axis` axis ("x" or "y" or "z") by `amount` nodes.

66
functions.lua
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@@ -267,6 +267,72 @@ worldedit.pyramid = function(pos, height, nodename)
return count
end
--adds a spiral at `pos` with width `width`, height `height`, space between walls `spacer`, composed of `nodename`, returning the number of nodes added
worldedit.spiral = function(pos, width, height, spacer, nodename) --wip: clean this up
-- spiral matrix - http://rosettacode.org/wiki/Spiral_matrix#Lua
av, sn = math.abs, function(s) return s~=0 and s/av(s) or 0 end
local function sindex(z, x) -- returns the value at (x, z) in a spiral that starts at 1 and goes outwards
if z == -x and z >= x then return (2*z+1)^2 end
local l = math.max(av(z), av(x))
return (2*l-1)^2+4*l+2*l*sn(x+z)+sn(z^2-x^2)*(l-(av(z)==l and sn(z)*x or sn(x)*z)) -- OH GOD WHAT
end
local function spiralt(side)
local ret, id, start, stop = {}, 0, math.floor((-side+1)/2), math.floor((side-1)/2)
for i = 1, side do
for j = 1, side do
local id = side^2 - sindex(stop - i + 1,start + j - 1)
ret[id] = {x=i,z=j}
end
end
return ret
end
-- connect the joined parts
local spiral = spiralt(width)
height = tonumber(height)
if height < 1 then height = 1 end
spacer = tonumber(spacer)-1
if spacer < 1 then spacer = 1 end
local count = 0
local node = {name=nodename}
local np,lp
for y=0,height do
lp = nil
for _,v in ipairs(spiral) do
np = {x=pos.x+v.x*spacer, y=pos.y+y, z=pos.z+v.z*spacer}
if lp~=nil then
if lp.x~=np.x then
if lp.x<np.x then
for i=lp.x+1,np.x do
minetest.env:add_node({x=i, y=np.y, z=np.z}, node)
count = count + 1
end
else
for i=np.x,lp.x-1 do
minetest.env:add_node({x=i, y=np.y, z=np.z}, node)
count = count + 1
end
end
end
if lp.z~=np.z then
if lp.z<np.z then
for i=lp.z+1,np.z do
minetest.env:add_node({x=np.x, y=np.y, z=i}, node)
count = count + 1
end
else
for i=np.z,lp.z-1 do
minetest.env:add_node({x=np.x, y=np.y, z=i}, node)
count = count + 1
end
end
end
end
lp = np
end
end
return count
end
--copies the region defined by positions `pos1` and `pos2` along the `axis` axis ("x" or "y" or "z") by `amount` nodes, returning the number of nodes copied
worldedit.copy = function(pos1, pos2, axis, amount)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

78
init.lua
View File

@@ -271,32 +271,6 @@ minetest.register_chatcommand("/hollowcylinder", {
end,
})
minetest.register_chatcommand("/pyramid", {
params = "<height> <node>",
description = "Add pyramid at WorldEdit position 1 with height <height>, composed of <node>",
privs = {worldedit=true},
func = function(name, param)
local pos = worldedit.pos1[name]
if pos == nil then
minetest.chat_send_player(name, "No WorldEdit region selected")
return
end
local found, _, size, nodename = param:find("(%d+)%s+([^%s]+)$")
if found == nil then
minetest.chat_send_player(name, "Invalid usage: " .. param)
return
end
if not worldedit.node_is_valid(pos, nodename) then
minetest.chat_send_player(name, "Invalid node name: " .. param)
return
end
local count = worldedit.pyramid(pos, tonumber(size), nodename)
minetest.chat_send_player(name, count .. " nodes added")
end,
})
minetest.register_chatcommand("/cylinder", {
params = "x/y/z/? <length> <radius> <node>",
description = "Add cylinder at WorldEdit position 1 along the x/y/z/? axis with length <length> and radius <radius>, composed of <node>",
@@ -327,6 +301,58 @@ minetest.register_chatcommand("/cylinder", {
end,
})
minetest.register_chatcommand("/pyramid", {
params = "<height> <node>",
description = "Add pyramid at WorldEdit position 1 with height <height>, composed of <node>",
privs = {worldedit=true},
func = function(name, param)
local pos = worldedit.pos1[name]
if pos == nil then
minetest.chat_send_player(name, "No WorldEdit region selected")
return
end
local found, _, size, nodename = param:find("(%d+)%s+([^%s]+)$")
if found == nil then
minetest.chat_send_player(name, "Invalid usage: " .. param)
return
end
if not worldedit.node_is_valid(pos, nodename) then
minetest.chat_send_player(name, "Invalid node name: " .. param)
return
end
local count = worldedit.pyramid(pos, tonumber(size), nodename)
minetest.chat_send_player(name, count .. " nodes added")
end,
})
minetest.register_chatcommand("/spiral", {
params = "<width> <height> <space> <node>",
description = "Add spiral at WorldEdit position 1 with width <width>, height <height>, space between walls <space>, composed of <node>",
privs = {worldedit=true},
func = function(name, param)
local pos = worldedit.pos1[name]
if pos == nil then
minetest.chat_send_player(name, "No WorldEdit region selected")
return
end
local found, _, width, height, space, nodename = param:find("(%d+)%s+(%d+)%s+(%d+)%s+([^%s]+)$")
if found == nil then
minetest.chat_send_player(name, "Invalid usage: " .. param)
return
end
if not worldedit.node_is_valid(pos, nodename) then
minetest.chat_send_player(name, "Invalid node name: " .. param)
return
end
local count = worldedit.spiral(pos, tonumber(width), tonumber(height), tonumber(space), nodename)
minetest.chat_send_player(name, count .. " nodes changed")
end,
})
minetest.register_chatcommand("/copy", {
params = "x/y/z/? <amount>",
description = "Copy the current WorldEdit region along the x/y/z/? axis by <amount> nodes",