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author | Anthony Zhang <azhang9@gmail.com> | 2013-07-31 00:02:37 -0400 |
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committer | Anthony Zhang <azhang9@gmail.com> | 2013-07-31 00:02:37 -0400 |
commit | 3c51ec8c4a347a6714472c423215243fc538f5f5 (patch) | |
tree | 8e135060cff98b685a26f96682f0a1919822abe6 /worldedit/primitives.lua | |
parent | 49b683f27f54bcdc636c018c7e6c1c4b4462b0bf (diff) |
//pyramid works along any axis and backwards. Working //clearobjects and //cylinder command, begin implementing super marker. Remove EnvRef usages and the block queue (the block queue does not work with VoxelManips). More block emergers.
Diffstat (limited to 'worldedit/primitives.lua')
-rw-r--r-- | worldedit/primitives.lua | 91 |
1 files changed, 61 insertions, 30 deletions
diff --git a/worldedit/primitives.lua b/worldedit/primitives.lua index d11596a..eb4624b 100644 --- a/worldedit/primitives.lua +++ b/worldedit/primitives.lua @@ -209,6 +209,20 @@ worldedit.hollow_cylinder = function(pos, axis, length, radius, nodename) --wip: currentpos[axis] = currentpos[axis] - length
end
+ --make area stay loaded
+ local manip = minetest.get_voxel_manip()
+ local pos1 = {
+ [axis]=currentpos[axis],
+ [other1]=currentpos[other1] - radius,
+ [other2]=currentpos[other2] - radius
+ }
+ local pos2 = {
+ [axis]=currentpos[axis] + length - 1,
+ [other1]=currentpos[other1] + radius,
+ [other2]=currentpos[other2] + radius
+ }
+ manip:read_from_map(pos1, pos2)
+
--create schematic for single node column along the axis
local node = {name=nodename, param1=0, param2=0}
local nodes = {}
@@ -306,13 +320,13 @@ worldedit.cylinder = function(pos, axis, length, radius, nodename) local offset = {x=currentpos.x - emerged_pos1.x, y=currentpos.y - emerged_pos1.y, z=currentpos.z - emerged_pos1.z}
local min_slice, max_slice = offset[axis], offset[axis] + length - 1
local count = 0
- for axis1 = -radius, radius do
- local newaxis1 = (axis1 + offset[other1]) * stride[other1] + 1 --offset contributed by other axis 1 plus 1 to make it 1-indexed
- for axis2 = -radius, radius do
- local newaxis2 = newaxis1 + (axis2 + offset[other2]) * stride[other2]
- if axis1 * axis1 + axis2 * axis2 <= max_radius then
- for slice = min_slice, max_slice do
- local i = newaxis2 + slice * stride[axis] + 1
+ for index2 = -radius, radius do
+ local newindex2 = (index2 + offset[other1]) * stride[other1] + 1 --offset contributed by other axis 1 plus 1 to make it 1-indexed
+ for index3 = -radius, radius do
+ local newindex3 = newindex2 + (index3 + offset[other2]) * stride[other2]
+ if index2 * index2 + index3 * index3 <= max_radius then
+ for index1 = min_slice, max_slice do --add column along axis
+ local i = newindex3 + index1 * stride[axis] + 1
nodes[i] = node_id
end
count = count + length
@@ -330,9 +344,34 @@ end --adds a pyramid centered at `pos` with height `height`, composed of `nodename`, returning the number of nodes added
worldedit.pyramid = function(pos, axis, height, nodename)
- local pos1 = {x=pos.x - height, y=pos.y, z=pos.z - height}
+ 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
+
+ local pos1 = {x=pos.x - height, y=pos.y - height, z=pos.z - height}
local pos2 = {x=pos.x + height, y=pos.y + height, z=pos.z + height}
+ --handle inverted pyramids
+ local startaxis, endaxis, step
+ local currentpos = {x=pos.x, y=pos.y, z=pos.z}
+ if height > 0 then
+ height = height - 1
+ startaxis, endaxis = 0, height
+ step = 1
+ pos1[axis] = pos[axis] --upper half of box
+ else
+ height = -height - 1
+ startaxis, endaxis = height, 0
+ step = -1
+ pos2[axis] = pos[axis] + 1 --lower half of box
+ currentpos[axis] = pos[axis] - height --bottom of box
+ end
+
--set up voxel manipulator
local manip = minetest.get_voxel_manip()
local emerged_pos1, emerged_pos2 = manip:read_from_map(pos1, pos2)
@@ -345,31 +384,22 @@ worldedit.pyramid = function(pos, axis, height, nodename) nodes[i] = ignore
end
- --handle inverted pyramids
- height = height - 1
- local size = height
- local step = -1
- if height < 0 then
- size = 0
- step = 1
- end
---wip: support arbitrary axes
--fill selected area with node
local node_id = minetest.get_content_id(nodename)
- local offsetx, offsety, offsetz = pos.x - emerged_pos1.x, pos.y - emerged_pos1.y, pos.z - emerged_pos1.z
- local zstride, ystride = area.zstride, area.ystride
+ local stride = {x=1, y=area.ystride, z=area.zstride}
+ local offset = {x=currentpos.x - emerged_pos1.x, y=currentpos.y - emerged_pos1.y, z=currentpos.z - emerged_pos1.z}
local count = 0
- for y = 0, height do --go through each level of the pyramid
- local newy = (y + offsety) * ystride + 1 --offset contributed by y plus 1 to make it 1-indexed
- for z = -size, size do
- local newz = newy + (z + offsetz) * zstride
- for x = -size, size do
- local i = newz + (x + offsetx)
+ for index1 = startaxis, endaxis, step do --go through each level of the pyramid
+ local newindex1 = (index1 + offset[axis]) * stride[axis] + 1 --offset contributed by axis plus 1 to make it 1-indexed
+ for index2 = -height, height do
+ local newindex2 = newindex1 + (index2 + offset[other1]) * stride[other1]
+ for index3 = -height, height do
+ local i = newindex2 + (index3 + offset[other2]) * stride[other2]
nodes[i] = node_id
end
end
- size = size + step
- count = count + ((height - y) * 2 + 1) ^ 2
+ count = count + (height * 2 + 1) ^ 2
+ height = height - 1
end
--update map nodes
@@ -383,11 +413,12 @@ 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: rewrite this whole thing, nobody can understand it anyways
-- 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 abs = math.abs
+ local sign = 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
+ local longest = math.max(abs(z), abs(x))
+ return (2*longest-1)^2 + 4*longest + 2*longest*sign(x+z) + sign(z^2-x^2)*(longest-(abs(z)==longest and sign(z)*x or sign(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)
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