HybridDog/cave_lighting-cd2025
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Create vectors with vector.new and use more voxel indices

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Creating a table with the x, y and z fields instead of using vector.new is considered deprecated in the current Minetest version.
This commit is contained in:
HybridDog 2023-12-16 14:11:35 +01:00
parent 817fc3003e
commit 55029262a0
1 changed files with 18 additions and 14 deletions
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32
init.lua
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@ -41,19 +41,20 @@ local function pos_placeable(pos)
end
local moves_touch = {
{x = -1, y = 0, z = 0},
{x = 1, y = 0, z = 0},
{x = 0, y = -1, z = 0},
{x = 0, y = 1, z = 0},
{x = 0, y = 0, z = -1},
{x = 0, y = 0, z = 1},
vector.new(-1, 0, 0),
vector.new(1, 0, 0),
vector.new(0, -1, 0),
vector.new(0, 1, 0),
vector.new(0, 0, -1),
vector.new(0, 0, 1),
}
local moves_near = {}
for x = -1,1 do
local moves_vi_near = {}
for z = -1,1 do
for y = -1,1 do
for z = -1,1 do
for x = -1,1 do
if x*x + y*y + z*z > 0 then
moves_near[#moves_near+1] = {x = x, y = y, z = z}
moves_vi_near[#moves_vi_near+1] =
z * 0x100000000 + y * 0x10000 + x
end
end
end
@ -84,8 +85,7 @@ local function search_positions(startpos, maxlight, pname)
local visited = {}
local found = {}
local num_found = 0
local function on_visit(pos)
local vi = minetest.hash_node_position(pos)
local function on_visit(vi)
if visited[vi] then
return false
end
@ -93,6 +93,7 @@ local function search_positions(startpos, maxlight, pname)
if num_found > max_positions then
return false
end
local pos = minetest.get_position_from_hash(vi)
local under_pos = pos_allowed(pos, maxlight, pname)
if under_pos then
num_found = num_found+1
@ -101,8 +102,11 @@ local function search_positions(startpos, maxlight, pname)
end
return false
end
on_visit(startpos)
search_dfs(on_visit, startpos, vector.add, moves_near)
local vi_start = minetest.hash_node_position(startpos)
on_visit(vi_start)
search_dfs(on_visit, vi_start, function(vi, vi_off)
return vi + vi_off
end, moves_vi_near)
-- Do not return the positions if the search has found too many, to avoid
-- fragmented lighting
return num_found <= max_positions and num_found > 0 and found