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Merge pull request 'Add lightning rods' (#2772) from lightning_rod into master

Reviewed-on: MineClone2/MineClone2#2772
Reviewed-by: PrairieWind <prairie.astronomer1@gmail.com>
This commit is contained in:
PrairieWind 2022-10-14 21:17:39 +00:00
commit 05232e99cd
4 changed files with 118 additions and 24 deletions

View File

@ -107,29 +107,7 @@ local function choose_pos(pos)
return pos, pos2 return pos, pos2
end end
-- * pos: optional, if not given a random pos will be chosen function lightning.strike_func(pos, pos2, objects)
-- * returns: bool - success if a strike happened
function lightning.strike(pos)
if lightning.auto then
after(rng:next(lightning.interval_low, lightning.interval_high), lightning.strike)
end
local pos2
pos, pos2 = choose_pos(pos)
if not pos then
return false
end
if lightning.on_strike_functions then
for _, func in pairs(lightning.on_strike_functions) do
-- allow on_strike callbacks to destroy entities by re-obtaining objects for each callback
local objects = get_objects_inside_radius(pos2, 3.5)
func(pos, pos2, objects)
end
end
end
lightning.register_on_strike(function(pos, pos2, objects)
local particle_pos = vector.offset(pos2, 0, (lightning.size / 2) + 0.5, 0) local particle_pos = vector.offset(pos2, 0, (lightning.size / 2) + 0.5, 0)
local particle_size = lightning.size * 10 local particle_size = lightning.size * 10
local time = 0.2 local time = 0.2
@ -230,7 +208,38 @@ lightning.register_on_strike(function(pos, pos2, objects)
end end
end end
end end
end) end
-- * pos: optional, if not given a random pos will be chosen
-- * returns: bool - success if a strike happened
function lightning.strike(pos)
if lightning.auto then
after(rng:next(lightning.interval_low, lightning.interval_high), lightning.strike)
end
local pos2
pos, pos2 = choose_pos(pos)
if not pos then
return false
end
local do_strike = true
if lightning.on_strike_functions then
for _, func in pairs(lightning.on_strike_functions) do
-- allow on_strike callbacks to destroy entities by re-obtaining objects for each callback
local objects = get_objects_inside_radius(pos2, 3.5)
local p,stop = func(pos, pos2, objects)
if p then
pos = p
pos2 = choose_pos(p)
end
do_strike = do_strike and not stop
end
end
if do_strike then
lightning.strike_func(pos,pos2,get_objects_inside_radius(pos2, 3.5))
end
end
-- if other mods disable auto lightning during initialization, don't trigger the first lightning. -- if other mods disable auto lightning during initialization, don't trigger the first lightning.
after(5, function(dtime) after(5, function(dtime)

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@ -0,0 +1,82 @@
local S = minetest.get_translator("mobs_mc")
local cbox = {
type = "fixed",
fixed = {
{ 0/16, -8/16, 0/16, 2/16, 4/16, 2/16 },
{ 0/16, 4/16, 0/16, 3/16, 8/16, 3/16 },
}
}
minetest.register_node("mcl_lightning_rods:rod", {
description = S("Lightning Rod"),
_doc_items_longdesc = S("A block that attracts lightning"),
--inventory_image = "mcl_lightning_rods_rod_inv.png",
tiles = {
"mcl_lightning_rods_rod.png",
"mcl_lightning_rods_rod.png",
"mcl_lightning_rods_rod.png",
"mcl_lightning_rods_rod.png",
"mcl_lightning_rods_rod.png",
"mcl_lightning_rods_rod.png",
},
drawtype = "nodebox",
is_ground_content = false,
paramtype = "light",
paramtype2 = "facedir",
groups = {pickaxey=2,attracts_lightning=1},
sounds = mcl_sounds.node_sound_metal_defaults(),
node_box = cbox,
selection_box = cbox,
collision_box = cbox,
on_place = function(itemstack, placer, pointed_thing)
if pointed_thing.type ~= "node" then
return itemstack
end
local p0 = pointed_thing.under
local p1 = pointed_thing.above
local param2 = 0
local placer_pos = placer:get_pos()
if placer_pos then
local dir = {
x = p1.x - placer_pos.x,
y = p1.y - placer_pos.y,
z = p1.z - placer_pos.z
}
param2 = minetest.dir_to_facedir(dir)
end
if p0.y - 1 == p1.y then
param2 = 20
elseif p0.x - 1 == p1.x then
param2 = 16
elseif p0.x + 1 == p1.x then
param2 = 12
elseif p0.z - 1 == p1.z then
param2 = 8
elseif p0.z + 1 == p1.z then
param2 = 4
end
return minetest.item_place(itemstack, placer, pointed_thing, param2)
end,
sounds = mcl_sounds.node_sound_glass_defaults(),
_mcl_blast_resistance = 0,
})
lightning.register_on_strike(function(pos,pos2,objects)
local lr = minetest.find_node_near(pos,128,{"group:attracts_lightning"},true)
return lr,nil
end)
minetest.register_craft({
output = "mcl_lightning_rods:rod",
recipe = {
{"", "mcl_copper:copper_ingot",""},
{"", "mcl_copper:copper_ingot",""},
{"", "mcl_copper:copper_ingot",""},
}
})

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@ -0,0 +1,3 @@
name = mcl_lightning_rods
author = cora
depends = mcl_sounds, lightning

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