Minetest.place schematic on vmanip: Difference between revisions
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The below snippet places the acacia tree from default at some terrain position with a random rotation when the data written at the voxelmanip index is dirt with dry grass. It | The below snippet places the acacia tree from default at some terrain position with a random rotation when the data written at the voxelmanip index is dirt with dry grass. It | ||
< | <code> | ||
local data = {} | local data = {} | ||
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip") | local vm, emin, emax = minetest.get_mapgen_object("voxelmanip") | ||
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end | end | ||
end | end | ||
</ | </code> | ||
<br/> | <br/> | ||
Revision as of 13:55, 5 August 2023
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Syntax
minetest.place_schematic_on_vmanip(vm, pos, schematic, rotation, replacements, force_placement)Description
This method works in a similar fashion to minetest.place_schematic, but can be used with a VoxelManip for better performance when manipulating large amounts of nodes.
- Uses VoxelManip object vm, which is the voxel manipulator you are using to e.g. generate terrain
- Places the schematic specified by schematic (see: Schematic specifier) at pos.
- Rotation can be "0", "90", "180", "270", or "random".
- If the rotation parameter is omitted, the schematic is not rotated.
- replacements = {["old_name"] = "convert_to", ...}
- force_placement is a boolean indicating whether nodes other than air and ignore are replaced by the schematic
Example
The below snippet places the acacia tree from default at some terrain position with a random rotation when the data written at the voxelmanip index is dirt with dry grass. It
local data = {}
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
for z = minp.z, maxp.z do
for x = minp.x, maxp.x do
for y = minp.y-1, maxp.y+1 do
-- E.g. terrain generation code here
end
end
end
-- Decoration
for z = minp.z, maxp.z do
for x = minp.x, maxp.x do
local ivm = area:index(x, minp.y-1, z)
for y = minp.y-1, maxp.y+1 do
if data[ivm] == minetest.get_content_id("default:dirt_with_dry_grass") and math.random(0, 500) then
-- We place the tree if there is grass with dirt, but we could also have retrieved the y from the
-- terrain heightmap in which case we would not necessarily have to loop from minp.y to maxp.y again
minetest.place_schematic_on_vmanip(vm, { x = x - 4, y = y, z = z - 4},
minetest.get_modpath("default").."/schematics/acacia_tree.mts",
"random", nil, false)
end
end
end
end
