mirror of https://github.com/minetest/minetest.git
57 lines
1.3 KiB
Lua
57 lines
1.3 KiB
Lua
-- Reimplementations of some environment function on vmanips, since this is
|
|
-- what the emerge environment operates on
|
|
|
|
-- core.vmanip = <VoxelManip> -- set by C++
|
|
|
|
function core.set_node(pos, node)
|
|
return core.vmanip:set_node_at(pos, node)
|
|
end
|
|
|
|
function core.bulk_set_node(pos_list, node)
|
|
local vm = core.vmanip
|
|
local set_node_at = vm.set_node_at
|
|
for _, pos in ipairs(pos_list) do
|
|
if not set_node_at(vm, pos, node) then
|
|
return false
|
|
end
|
|
end
|
|
return true
|
|
end
|
|
|
|
core.add_node = core.set_node
|
|
|
|
-- we don't deal with metadata currently
|
|
core.swap_node = core.set_node
|
|
|
|
function core.remove_node(pos)
|
|
return core.vmanip:set_node_at(pos, {name="air"})
|
|
end
|
|
|
|
function core.get_node(pos)
|
|
return core.vmanip:get_node_at(pos)
|
|
end
|
|
|
|
function core.get_perlin(seed, octaves, persist, spread)
|
|
local params
|
|
if type(seed) == "table" then
|
|
params = table.copy(seed)
|
|
else
|
|
assert(type(seed) == "number")
|
|
params = {
|
|
seed = seed,
|
|
octaves = octaves,
|
|
persist = persist,
|
|
spread = {x=spread, y=spread, z=spread},
|
|
}
|
|
end
|
|
params.seed = core.get_seed(params.seed) -- add mapgen seed
|
|
return PerlinNoise(params)
|
|
end
|
|
|
|
|
|
function core.get_perlin_map(params, size)
|
|
local params2 = table.copy(params)
|
|
params2.seed = core.get_seed(params.seed) -- add mapgen seed
|
|
return PerlinNoiseMap(params2, size)
|
|
end
|