dfcaverns/mine_gas/wisp.lua
2021-03-13 02:21:13 -07:00

87 lines
2.5 KiB
Lua

local modname = minetest.get_current_modname()
local S = minetest.get_translator(modname)
local wisp_desc
local wisp_usage
if minetest.get_modpath("doc") then
wisp_desc = S("Mysterious blue flames may occasionally be found flickering on the edges of oil lakes, burning without oxygen and seeming to maintain their size as they drift about through the unbreathable atmosphere.")
wisp_usage = S("Gas Wisps have no known use, and fortunately they are not hostile or very dangerous.")
end
minetest.register_node("mine_gas:gas_wisp", {
description = S("Gas Wisp"),
_doc_items_longdesc = wisp_desc,
_doc_items_usagehelp = wisp_usage,
walkable = false,
is_ground_content = false,
diggable = false,
buildable_to = true,
drawtype = "plantlike",
waving = 1,
drowning = 1,
damage_per_second = 4,
post_effect_color = {a = 20, r = 20, g = 20, b = 250},
tiles = {{name = "mine_gas_wisp.png", animation =
{
type = "vertical_frames",
aspect_w = 16,
aspect_h = 16,
length = 1.5,
},
}},
light_source = 10,
use_texture_alpha = "clip",
groups = {not_in_creative_inventory=0},
paramtype = "light",
paramtype2 = "meshoptions",
place_param2 = 0,
-- * bit 4 (0x10, decimal 16) - Makes the plant mesh 1.4x larger
inventory_image = "mine_gas_wisp_inventory.png",
drop = {},
sunlight_propagates = true,
on_blast = function() end, -- unaffected by explosions
})
minetest.register_abm({
label = "mine_gas:gas wisp movement",
nodenames = {"mine_gas:gas_wisp"},
neighbors = {"mine_gas:gas"},
interval = 1.0,
chance = 10,
catch_up = true,
action = function(pos, node)
local next_pos = {x=pos.x+math.random(1,3)-2, y=pos.y+math.random(1,3)-2, z=pos.z+math.random(1,3)-2}
local next_node = minetest.get_node(next_pos)
if next_node.name == "mine_gas:gas" then
minetest.swap_node(next_pos, node)
minetest.swap_node(pos, next_node)
end
pos = next_pos
end,
})
minetest.register_abm({
label = "mine_gas:gas wisp extinguish",
nodenames = {"mine_gas:gas_wisp"},
neighbors = {"air"},
interval = 10,
chance = 1,
catch_up = true,
action = function(pos, node)
for y = -1, 1 do
for x = -1, 1 do
for z = -1, 1 do
local node_name = minetest.get_node({x=pos.x+x, y=pos.y+y, z=pos.z+z}).name
if node_name == "mine_gas:gas" or minetest.get_item_group(node_name, "flammable") > 0 then
-- there's gas or a flammable adjacent, don't extinguish
return
end
end
end
end
-- no gas adjacent, extinguish
minetest.set_node(pos, {name="air"})
end,
})