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Merge pull request 'solar panels: No crash when minetest.get_natural_light() return nil' (#3640) from spanels into master 

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/3640
Reviewed-by: chmodsayshello <chmodsayshello@hotmail.com>
mobsarmorfix
ancientmarinerdev 2023-04-20 13:30:26 +00:00
parent becf98875f cdb2bc20b0
commit 32a60c888b
1 changed files with 2 additions and 49 deletions
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51
mods/ITEMS/REDSTONE/mesecons_solarpanel/init.lua
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@ -1,55 +1,8 @@
local S = minetest.get_translator(minetest.get_current_modname()) local S = minetest.get_translator(minetest.get_current_modname())
local function path_to_sunlight_exists(position, light_level)
local neighbours = {
{ x = 0, y = 0, z =-1 },
{ x = 0, y = 0, z = 1 },
{ x = 0, y =-1, z = 0 },
{ x = 0, y = 1, z = 0 },
{ x =-1, y = 0, z = 0 },
{ x = 1, y = 0, z = 0 },
}
for i=1, #neighbours do
local offset = neighbours[i]
local position_new = vector.add(
position,
offset
)
local light_level_new = minetest.get_node_light(
position_new,
nil
)
if 15 == light_level_new then
-- found the sunlight
return true
elseif light_level_new > light_level then
-- search where light is brighter
if path_to_sunlight_exists(
position_new,
light_level_new
) then
return true
end
end
end
end
local function sunlight_visible(position) local function sunlight_visible(position)
local light_level = mcl_util.get_natural_light (position) local light_level = mcl_util.get_natural_light(position)
if light_level >= 12 then return light_level ~= nil and light_level >= 12
--minetest.log("Light is greater than 12")
return true
else
local time = minetest.get_timeofday() * 24000
-- only check light level during day
if time > 6000 and time < 18000 then
light_level = minetest.get_node_light(position, nil)
if light_level >= 12 then
return path_to_sunlight_exists(position, 12)
end
end
end
return false
end end
local boxes = { -8/16, -8/16, -8/16, 8/16, -2/16, 8/16 } local boxes = { -8/16, -8/16, -8/16, 8/16, -2/16, 8/16 }