312 lines
9.6 KiB
Lua
312 lines
9.6 KiB
Lua
worldedit = worldedit or {}
|
|
|
|
--adds a hollow sphere centered at `pos` with radius `radius`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.hollow_sphere = function(pos, radius, nodename, env)
|
|
local node = {name=nodename}
|
|
local pos1 = {x=0, y=0, z=0}
|
|
local min_radius = radius * (radius - 1)
|
|
local max_radius = radius * (radius + 1)
|
|
local count = 0
|
|
if env == nil then env = minetest.env end
|
|
for x = -radius, radius do
|
|
pos1.x = pos.x + x
|
|
for y = -radius, radius do
|
|
pos1.y = pos.y + y
|
|
for z = -radius, radius do
|
|
if x*x+y*y+z*z >= min_radius and x*x+y*y+z*z <= max_radius then
|
|
pos1.z = pos.z + z
|
|
env:add_node(pos1, node)
|
|
count = count + 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a sphere centered at `pos` with radius `radius`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.sphere = function(pos, radius, nodename, env)
|
|
local node = {name=nodename}
|
|
local pos1 = {x=0, y=0, z=0}
|
|
local max_radius = radius * (radius + 1)
|
|
local count = 0
|
|
if env == nil then env = minetest.env end
|
|
for x = -radius, radius do
|
|
pos1.x = pos.x + x
|
|
for y = -radius, radius do
|
|
pos1.y = pos.y + y
|
|
for z = -radius, radius do
|
|
if x*x+y*y+z*z <= max_radius then
|
|
pos1.z = pos.z + z
|
|
env:add_node(pos1, node)
|
|
count = count + 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a hollow dome centered at `pos` with radius `radius`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.hollow_dome = function(pos, radius, nodename, env) --wip: use bresenham sphere for maximum speed
|
|
local node = {name=nodename}
|
|
local pos1 = {x=0, y=0, z=0}
|
|
local min_radius = radius * (radius - 1)
|
|
local max_radius = radius * (radius + 1)
|
|
local count = 0
|
|
if env == nil then env = minetest.env end
|
|
for x = -radius, radius do
|
|
pos1.x = pos.x + x
|
|
for y = 0, radius do
|
|
pos1.y = pos.y + y
|
|
for z = -radius, radius do
|
|
if x*x+y*y+z*z >= min_radius and x*x+y*y+z*z <= max_radius then
|
|
pos1.z = pos.z + z
|
|
env:add_node(pos1, node)
|
|
count = count + 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a dome centered at `pos` with radius `radius`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.dome = function(pos, radius, nodename, env) --wip: use bresenham sphere for maximum speed
|
|
local node = {name=nodename}
|
|
local pos1 = {x=0, y=0, z=0}
|
|
local max_radius = radius * (radius + 1)
|
|
local count = 0
|
|
if env == nil then env = minetest.env end
|
|
for x = -radius, radius do
|
|
pos1.x = pos.x + x
|
|
for y = 0, radius do
|
|
pos1.y = pos.y + y
|
|
for z = -radius, radius do
|
|
if x*x+y*y+z*z <= max_radius then
|
|
pos1.z = pos.z + z
|
|
env:add_node(pos1, node)
|
|
count = count + 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a hollow cylinder at `pos` along the `axis` axis ("x" or "y" or "z") with length `length` and radius `radius`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.hollow_cylinder = function(pos, axis, length, radius, nodename, env)
|
|
local other1, other2
|
|
if axis == "x" then
|
|
other1, other2 = "y", "z"
|
|
elseif axis == "y" then
|
|
other1, other2 = "x", "z"
|
|
else --axis == "z"
|
|
other1, other2 = "x", "y"
|
|
end
|
|
|
|
if env == nil then env = minetest.env end
|
|
local currentpos = {x=pos.x, y=pos.y, z=pos.z}
|
|
local node = {name=nodename}
|
|
local count = 0
|
|
local step = 1
|
|
if length < 0 then
|
|
length = -length
|
|
step = -1
|
|
end
|
|
for i = 1, length do
|
|
local offset1, offset2 = 0, radius
|
|
local delta = -radius
|
|
while offset1 <= offset2 do
|
|
--add node at each octant
|
|
local first1, first2 = pos[other1] + offset1, pos[other1] - offset1
|
|
local second1, second2 = pos[other2] + offset2, pos[other2] - offset2
|
|
currentpos[other1], currentpos[other2] = first1, second1
|
|
env:add_node(currentpos, node) --octant 1
|
|
currentpos[other1] = first2
|
|
env:add_node(currentpos, node) --octant 4
|
|
currentpos[other2] = second2
|
|
env:add_node(currentpos, node) --octant 5
|
|
currentpos[other1] = first1
|
|
env:add_node(currentpos, node) --octant 8
|
|
local first1, first2 = pos[other1] + offset2, pos[other1] - offset2
|
|
local second1, second2 = pos[other2] + offset1, pos[other2] - offset1
|
|
currentpos[other1], currentpos[other2] = first1, second1
|
|
env:add_node(currentpos, node) --octant 2
|
|
currentpos[other1] = first2
|
|
env:add_node(currentpos, node) --octant 3
|
|
currentpos[other2] = second2
|
|
env:add_node(currentpos, node) --octant 6
|
|
currentpos[other1] = first1
|
|
env:add_node(currentpos, node) --octant 7
|
|
|
|
count = count + 8 --wip: broken
|
|
|
|
--move to next location
|
|
delta = delta + (offset1 * 2) + 1
|
|
if delta >= 0 then
|
|
offset2 = offset2 - 1
|
|
delta = delta - (offset2 * 2)
|
|
end
|
|
offset1 = offset1 + 1
|
|
end
|
|
currentpos[axis] = currentpos[axis] + step
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a cylinder at `pos` along the `axis` axis ("x" or "y" or "z") with length `length` and radius `radius`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.cylinder = function(pos, axis, length, radius, nodename, env)
|
|
local other1, other2
|
|
if axis == "x" then
|
|
other1, other2 = "y", "z"
|
|
elseif axis == "y" then
|
|
other1, other2 = "x", "z"
|
|
else --axis == "z"
|
|
other1, other2 = "x", "y"
|
|
end
|
|
|
|
if env == nil then env = minetest.env end
|
|
local currentpos = {x=pos.x, y=pos.y, z=pos.z}
|
|
local node = {name=nodename}
|
|
local count = 0
|
|
local step = 1
|
|
if length < 0 then
|
|
length = -length
|
|
step = -1
|
|
end
|
|
for i = 1, length do
|
|
local offset1, offset2 = 0, radius
|
|
local delta = -radius
|
|
while offset1 <= offset2 do
|
|
--connect each pair of octants
|
|
currentpos[other1] = pos[other1] - offset1
|
|
local second1, second2 = pos[other2] + offset2, pos[other2] - offset2
|
|
for i = 0, offset1 * 2 do
|
|
currentpos[other2] = second1
|
|
env:add_node(currentpos, node) --octant 1 to 4
|
|
currentpos[other2] = second2
|
|
env:add_node(currentpos, node) --octant 5 to 8
|
|
currentpos[other1] = currentpos[other1] + 1
|
|
end
|
|
currentpos[other1] = pos[other1] - offset2
|
|
local second1, second2 = pos[other2] + offset1, pos[other2] - offset1
|
|
for i = 0, offset2 * 2 do
|
|
currentpos[other2] = second1
|
|
env:add_node(currentpos, node) --octant 2 to 3
|
|
currentpos[other2] = second2
|
|
env:add_node(currentpos, node) --octant 6 to 7
|
|
currentpos[other1] = currentpos[other1] + 1
|
|
end
|
|
|
|
count = count + (offset1 * 4) + (offset2 * 4) + 4 --wip: broken
|
|
|
|
--move to next location
|
|
delta = delta + (offset1 * 2) + 1
|
|
offset1 = offset1 + 1
|
|
if delta >= 0 then
|
|
offset2 = offset2 - 1
|
|
delta = delta - (offset2 * 2)
|
|
end
|
|
end
|
|
currentpos[axis] = currentpos[axis] + step
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a pyramid centered at `pos` with height `height`, composed of `nodename`, returning the number of nodes added
|
|
worldedit.pyramid = function(pos, height, nodename, env)
|
|
local pos1x, pos1y, pos1z = pos.x - height, pos.y, pos.z - height
|
|
local pos2x, pos2y, pos2z = pos.x + height, pos.y + height, pos.z + height
|
|
local pos = {x=0, y=pos1y, z=0}
|
|
|
|
local count = 0
|
|
local node = {name=nodename}
|
|
if env == nil then env = minetest.env end
|
|
while pos.y <= pos2y do --each vertical level of the pyramid
|
|
pos.x = pos1x
|
|
while pos.x <= pos2x do
|
|
pos.z = pos1z
|
|
while pos.z <= pos2z do
|
|
env:add_node(pos, node)
|
|
pos.z = pos.z + 1
|
|
end
|
|
pos.x = pos.x + 1
|
|
end
|
|
count = count + ((pos2y - pos.y) * 2 + 1) ^ 2
|
|
pos.y = pos.y + 1
|
|
|
|
pos1x, pos2x = pos1x + 1, pos2x - 1
|
|
pos1z, pos2z = pos1z + 1, pos2z - 1
|
|
|
|
end
|
|
return count
|
|
end
|
|
|
|
--adds a spiral centered 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, env) --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
|
|
if env == nil then env = minetest.env 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
|
|
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
|
|
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
|
|
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
|
|
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
|