dfcaverns/features/cave_coral.lua

114 lines
4.1 KiB
Lua

-- internationalization boilerplate
local MP = minetest.get_modpath(minetest.get_current_modname())
local S, NS = dofile(MP.."/intllib.lua")
minetest.register_node("dfcaverns:cave_coral_3", {
description = S("Cave Coral"),
_doc_items_longdesc = dfcaverns.doc.cave_coral_desc,
_doc_items_usagehelp = dfcaverns.doc.cave_coral_usage,
tiles = {"dfcaverns_cave_coral_end.png", "dfcaverns_cave_coral_end.png", "dfcaverns_cave_coral.png"},
is_ground_content = true,
drop = "default:coral_skeleton",
light_source = 3,
groups = {cracky = 3, dfcaverns_cave_coral = 1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_node("dfcaverns:cave_coral_2", {
description = S("Cave Coral"),
_doc_items_longdesc = dfcaverns.doc.cave_coral_desc,
_doc_items_usagehelp = dfcaverns.doc.cave_coral_usage,
tiles = {"dfcaverns_cave_coral_end.png", "dfcaverns_cave_coral_end.png", "dfcaverns_cave_coral.png"},
is_ground_content = true,
drop = "default:coral_skeleton",
light_source = 2,
groups = {cracky = 3, dfcaverns_cave_coral = 1},
sounds = default.node_sound_stone_defaults(),
})
minetest.register_node("dfcaverns:cave_coral_1", {
description = S("Cave Coral"),
_doc_items_longdesc = dfcaverns.doc.cave_coral_desc,
_doc_items_usagehelp = dfcaverns.doc.cave_coral_usage,
tiles = {"dfcaverns_cave_coral_end.png", "dfcaverns_cave_coral_end.png", "dfcaverns_cave_coral.png"},
is_ground_content = true,
drop = "default:coral_skeleton",
light_source = 1,
groups = {cracky = 3, dfcaverns_cave_coral = 1},
sounds = default.node_sound_stone_defaults(),
})
local coral_names = {"dfcaverns:cave_coral_1", "dfcaverns:cave_coral_2", "dfcaverns:cave_coral_3"}
minetest.register_abm{
label = "dfcaverns:shifting_coral",
nodenames = {"group:dfcaverns_cave_coral"},
interval = 2,
chance = 10,
action = function(pos)
minetest.swap_node(pos, {name=coral_names[math.random(1,3)]})
end,
}
local c_coral_1 = minetest.get_content_id("dfcaverns:cave_coral_1")
local c_coral_2 = minetest.get_content_id("dfcaverns:cave_coral_2")
local c_coral_3 = minetest.get_content_id("dfcaverns:cave_coral_3")
local c_coral_skeleton = minetest.get_content_id("default:coral_skeleton")
local c_dirt = minetest.get_content_id("default:dirt")
local c_stone = minetest.get_content_id("default:stone")
local corals = {c_coral_1, c_coral_2, c_coral_3}
local get_coral = function()
return corals[math.random(1,3)]
end
dfcaverns.spawn_cave_coral = function(area, data, vi, iterations)
local run = math.random(2,4)
local index = vi
local zstride = area.zstride
local ystride = area.ystride
while run > 0 do
if math.random() > 0.95 or data[index] == c_stone or not area:containsi(index) then return end
data[index] = get_coral()
if iterations > 2 then
data[index + 1] = get_coral()
data[index - 1] = get_coral()
data[index + zstride] = get_coral()
data[index - zstride] = get_coral()
end
if iterations > 3 then
data[index + 2] = get_coral()
data[index - 2] = get_coral()
data[index + zstride * 2] = get_coral()
data[index - zstride * 2] = get_coral()
data[index + 1 + zstride] = get_coral()
data[index - 1 + zstride] = get_coral()
data[index + 1 - zstride] = get_coral()
data[index - 1 - zstride] = get_coral()
end
index = index - ystride
run = run - 1
end
local newiterations = iterations - 1
if newiterations == 0 then return end
if math.random() > 0.5 then
dfcaverns.spawn_cave_coral(area, data, index + 1 + ystride, newiterations)
dfcaverns.spawn_cave_coral(area, data, index - 1 + ystride, newiterations)
else
dfcaverns.spawn_cave_coral(area, data, index + zstride + ystride, newiterations)
dfcaverns.spawn_cave_coral(area, data, index - zstride + ystride, newiterations)
end
end
dfcaverns.spawn_coral_pile = function(area, data, vi, radius)
local pos = area:position(vi)
for li in area:iterp(vector.add(pos, -radius), vector.add(pos, radius)) do
local adjacent = li + area.ystride
local node_type = data[li]
if math.random() < 0.2 and (node_type == c_stone or node_type == c_dirt) and data[adjacent] == c_water then
data[adjacent] = c_coral_skeleton
end
end
end