VoxeLibre/mods/ITEMS/mcl_ocean/kelp.lua

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local S = minetest.get_translator("mcl_ocean")
local mod_doc = minetest.get_modpath("doc") ~= nil
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-- List of supported surfaces for seagrass and kelp
local surfaces = {
{ "dirt", "mcl_core:dirt" },
{ "sand", "mcl_core:sand", 1 },
{ "redsand", "mcl_core:redsand", 1 },
{ "gravel", "mcl_core:gravel", 1 },
}
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local function get_kelp_top(pos, node)
local size = math.ceil(node.param2 / 16)
local pos_water = table.copy(pos)
pos_water.y = pos_water.y + size
return pos_water, minetest.get_node(pos_water)
end
local function get_submerged(node_water)
local def_water = minetest.registered_nodes[node_water.name]
-- Submerged in water?
if minetest.get_item_group(node_water.name, "water") then
if def_water.liquidtype == "source" then
return "source"
elseif def_water.liquidtype == "flowing" then
return "flowing"
end
end
return false
end
local function grow_param2_step(param2, snap_into_grid)
local old_param2 = param2
param2 = param2 + 16
if param2 > 240 then
param2 = 240
end
if snap_into_grid and (param2 % 16 ~= 0) then
param2 = param2 - (param2 % 16)
end
return param2, param2 ~= old_param2
end
local function kelp_check_place(pos_above, node_above, def_above)
if minetest.get_item_group(node_above.name, "water") == 0 then
return false
end
local can_place = false
if (def_above.liquidtype == "source") then
can_place = true
elseif (def_above.liquidtype == "flowing") then
-- Check if bit 3 (downwards flowing) is set
can_place = (math.floor(node_above.param2 / 8) % 2) == 1
if not can_place then
-- If not, also check node above (this is needed due a weird quirk in the definition of
-- "downwards flowing" liquids in Minetest)
local node_above_above = minetest.get_node({x=pos_above.x,y=pos_above.y+1,z=pos_above.z})
local naa_def = minetest.registered_nodes[node_above_above.name]
can_place = naa_def.liquidtype == "source"
if not can_place then
can_place = (naa_def.liquidtype == "flowing") and ((math.floor(node_above_above.param2 / 8) % 2) == 1)
end
end
end
return can_place
end
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local function kelp_on_place(itemstack, placer, pointed_thing)
if pointed_thing.type ~= "node" or not placer then
return itemstack
end
local player_name = placer:get_player_name()
local pos_under = pointed_thing.under
local pos_above = pointed_thing.above
local node_under = minetest.get_node(pos_under)
local node_above = minetest.get_node(pos_above)
local def_under = minetest.registered_nodes[node_under.name]
local def_above = minetest.registered_nodes[node_above.name]
if def_under and def_under.on_rightclick and not placer:get_player_control().sneak then
return def_under.on_rightclick(pos_under, node_under,
placer, itemstack, pointed_thing) or itemstack
end
if minetest.is_protected(pos_under, player_name) or
minetest.is_protected(pos_above, player_name) then
minetest.log("action", player_name
.. " tried to place " .. itemstack:get_name()
.. " at protected position "
.. minetest.pos_to_string(pos_under))
minetest.record_protection_violation(pos_under, player_name)
return itemstack
end
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local grow_kelp = false
-- Select a kelp node when placed on surface node
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if node_under.name == "mcl_core:dirt" then
node_under.name = "mcl_ocean:kelp_dirt"
elseif node_under.name == "mcl_core:sand" then
node_under.name = "mcl_ocean:kelp_sand"
elseif node_under.name == "mcl_core:redsand" then
node_under.name = "mcl_ocean:kelp_redsand"
elseif node_under.name == "mcl_core:gravel" then
node_under.name = "mcl_ocean:kelp_gravel"
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elseif minetest.get_item_group(node_under.name, "kelp") == 1 then
-- Place kelp on kelp = grow kelp by 1 node length
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node_under.param2, grow_kelp = grow_param2_step(node_under.param2)
if not grow_kelp then
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return itemstack
end
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else
return itemstack
end
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local submerged = false
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if grow_kelp then
-- Kelp placed on kelp ...
-- Kelp can be placed on top of another kelp to make it grow
if pos_under.y >= pos_above.y or pos_under.x ~= pos_above.x or pos_under.z ~= pos_above.z then
-- Placed on side or below node, abort
return itemstack
end
-- New kelp top must also be submerged in water
local top_pos, top_node = get_kelp_top(pos_under, node_under)
local top_def = minetest.registered_nodes[top_node.name]
submerged = kelp_check_place(top_pos, top_node, top_def)
if not submerged then
-- Not submerged in water, abort
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return itemstack
end
else
-- New kelp placed ...
if pos_under.y >= pos_above.y then
-- Placed on side or below node, abort
return itemstack
end
-- Kelp can be placed inside a water source or water flowing downwards on top of a surface node
local can_place = kelp_check_place(pos_above, node_above, def_above)
if not can_place then
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return itemstack
end
node_under.param2 = minetest.registered_items[node_under.name].place_param2 or 16
end
-- Place or grow kelp
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local def_node = minetest.registered_items[node_under.name]
if def_node.sounds then
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minetest.sound_play(def_node.sounds.place, { gain = 0.5, pos = pos_under }, true)
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end
minetest.set_node(pos_under, node_under)
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if not minetest.is_creative_enabled(player_name) then
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itemstack:take_item()
end
return itemstack
end
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local get_kelp_height = function(param2)
return math.floor(param2 / 16)
end
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minetest.register_craftitem("mcl_ocean:kelp", {
description = S("Kelp"),
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_tt_help = S("Grows in water on dirt, sand, gravel"),
_doc_items_create_entry = false,
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inventory_image = "mcl_ocean_kelp_item.png",
wield_image = "mcl_ocean_kelp_item.png",
on_place = kelp_on_place,
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groups = { deco_block = 1 },
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})
-- Kelp nodes: kelp on a surface node
for s=1, #surfaces do
local def = minetest.registered_nodes[surfaces[s][2]]
local alt
if surfaces[s][3] == 1 then
alt = surfaces[s][2]
end
local sounds = table.copy(def.sounds)
local leaf_sounds = mcl_sounds.node_sound_leaves_defaults()
sounds.dig = leaf_sounds.dig
sounds.dug = leaf_sounds.dug
sounds.place = leaf_sounds.place
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local tt_help, doc_longdesc, doc_img, desc
if surfaces[s][1] == "dirt" then
doc_longdesc = S("Kelp grows inside water on top of dirt, sand or gravel.")
desc = S("Kelp")
doc_create = true
doc_img = "mcl_ocean_kelp_item.png"
else
doc_create = false
end
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minetest.register_node("mcl_ocean:kelp_"..surfaces[s][1], {
_doc_items_entry_name = desc,
_doc_items_longdesc = doc_longdesc,
_doc_items_create_entry = doc_create,
_doc_items_image = doc_img,
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drawtype = "plantlike_rooted",
paramtype = "light",
paramtype2 = "leveled",
place_param2 = 16,
tiles = def.tiles,
special_tiles = {
{
image = "mcl_ocean_kelp_plant.png",
animation = {type="vertical_frames", aspect_w=16, aspect_h=16, length=2.0},
tileable_vertical = true,
}
},
inventory_image = "("..def.tiles[1]..")^mcl_ocean_kelp_item.png",
wield_image = "mcl_ocean_kelp_item.png",
selection_box = {
type = "fixed",
fixed = {
{ -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
{ -0.5, 0.5, -0.5, 0.5, 1.5, 0.5 },
},
},
groups = { dig_immediate = 3, deco_block = 1, plant = 1, kelp = 1, falling_node = surfaces[s][3] },
sounds = sounds,
node_dig_prediction = surfaces[s][2],
after_dig_node = function(pos)
minetest.set_node(pos, {name=surfaces[s][2]})
end,
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on_dig = function(pos, node, digger)
-- Drop kelp as item; item count depends on height
local dname = ""
if digger then
dname = digger:get_player_name()
end
local creative = minetest.is_creative_enabled(dname)
if not creative then
minetest.add_item({x=pos.x, y=pos.y+1, z=pos.z}, "mcl_ocean:kelp "..get_kelp_height(node.param2))
end
minetest.node_dig(pos, node, digger)
end,
drop = "", -- drops are handled in on_dig
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_mcl_falling_node_alternative = alt,
_mcl_hardness = 0,
_mcl_blast_resistance = 0,
})
if mod_doc and surfaces[s][1] ~= "dirt" then
doc.add_entry_alias("nodes", "mcl_ocean:kelp_dirt", "nodes", "mcl_ocean:kelp_"..surfaces[s][1])
end
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end
if mod_doc then
doc.add_entry_alias("nodes", "mcl_ocean:kelp_dirt", "craftitems", "mcl_ocean:kelp")
end
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-- Dried kelp stuff
-- TODO: This is supposed to be eaten very fast
minetest.register_craftitem("mcl_ocean:dried_kelp", {
description = S("Dried Kelp"),
_doc_items_longdesc = S("Dried kelp is a food item."),
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inventory_image = "mcl_ocean_dried_kelp.png",
wield_image = "mcl_ocean_dried_kelp.png",
groups = { food = 2, eatable = 1 },
on_place = minetest.item_eat(1),
on_secondary_use = minetest.item_eat(1),
groups = { food = 2, eatable = 1 },
_mcl_saturation = 0.6,
})
local mod_screwdriver = minetest.get_modpath("screwdriver") ~= nil
local on_rotate
if mod_screwdriver then
on_rotate = screwdriver.rotate_3way
end
minetest.register_node("mcl_ocean:dried_kelp_block", {
description = S("Dried Kelp Block"),
_doc_items_longdesc = S("A decorative block that serves as a great furnace fuel."),
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tiles = { "mcl_ocean_dried_kelp_top.png", "mcl_ocean_dried_kelp_bottom.png", "mcl_ocean_dried_kelp_side.png" },
groups = { handy = 1, building_block = 1, flammable = 2, fire_encouragement = 30, fire_flammability = 60 },
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sounds = mcl_sounds.node_sound_leaves_defaults(),
paramtype2 = "facedir",
on_place = mcl_util.rotate_axis,
on_rotate = on_rotate,
_mcl_hardness = 0.5,
_mcl_blast_resistance = 12.5,
})
minetest.register_craft({
type = "cooking",
recipe = "mcl_ocean:kelp",
output = "mcl_ocean:dried_kelp",
cooktime = 10,
})
minetest.register_craft({
recipe = {
{ "mcl_ocean:dried_kelp","mcl_ocean:dried_kelp","mcl_ocean:dried_kelp" },
{ "mcl_ocean:dried_kelp","mcl_ocean:dried_kelp","mcl_ocean:dried_kelp" },
{ "mcl_ocean:dried_kelp","mcl_ocean:dried_kelp","mcl_ocean:dried_kelp" },
},
output = "mcl_ocean:dried_kelp_block",
})
minetest.register_craft({
recipe = {
{ "mcl_ocean:dried_kelp_block" },
},
output = "mcl_ocean:dried_kelp 9",
})
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minetest.register_craft({
type = "fuel",
recipe = "mcl_ocean:dried_kelp_block",
burntime = 200,
})
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-- Grow kelp
minetest.register_abm({
label = "Kelp growth",
nodenames = { "group:kelp" },
interval = 45,
chance = 12,
catch_up = false,
action = function(pos, node, active_object_count, active_object_count_wider)
local grown
-- Grow kelp by 1 node length if it would grow inside water
node.param2, grown = grow_param2_step(node.param2, true)
local top, top_node = get_kelp_top(pos, node)
local submerged = get_submerged(top_node)
if grown then
if submerged == "source" then
-- Liquid source: Grow normally
minetest.set_node(pos, node)
elseif submerged == "flowing" then
-- Flowing liquid: Grow 1 step, but also turn the top node into a liquid source
minetest.set_node(pos, node)
local def_liq = minetest.registered_nodes[top_node.name]
local alt_liq = def_liq and def_liq.liquid_alternative_source
if alt_liq then
minetest.set_node(top, {name=alt_liq})
end
end
end
end,
})