forked from VoxeLibre/VoxeLibre
386 lines
12 KiB
Lua
386 lines
12 KiB
Lua
local S = minetest.get_translator("mcl_ocean")
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local mod_doc = minetest.get_modpath("doc") ~= nil
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-- NOTE: whenever it becomes possible to fully implement kelp without the
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-- plantlike_rooted limitation, please adapt the code accordingly.
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-- List of supported surfaces for seagrass and kelp.
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local surfaces = {
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{ "dirt", "mcl_core:dirt" },
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{ "sand", "mcl_core:sand", 1 },
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{ "redsand", "mcl_core:redsand", 1 },
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{ "gravel", "mcl_core:gravel", 1 },
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}
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-- Is this water?
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local function is_submerged(node, nodedef)
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if minetest.get_item_group(node.name, "water") ~= 0 then
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return nodedef.liquidtype -- Expected only "source" and "flowing" from water liquids
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end
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return false
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end
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-- Is the water downward flowing?
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-- (kelp can grow/be placed inside downward flowing water)
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local function is_downward_flowing(pos, node, nodedef, is_above)
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result = (math.floor(node.param2 / 8) % 2) == 1
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if not (result or is_above) then
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-- If not, also check node above (this is needed due a weird quirk in the definition of
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-- "downwards flowing" liquids in Minetest)
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local node_above = minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
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local nodedef_above = minetest.registered_nodes[node_above.name]
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result = is_submerged(node_above, nodedef_above) or is_downward_flowing(pos, node_above, nodedef_above, true)
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end
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return result
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end
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-- Converts param2 to kelp height.
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local function get_kelp_height(param2)
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return math.floor(param2 / 16)
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end
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-- Obtain pos and node of the top of kelp.
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local function get_kelp_top(pos, node)
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local size = math.ceil(node.param2 / 16)
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local pos_top = table.copy(pos)
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pos_top.y = pos_top.y + size
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return pos_top, minetest.get_node(pos_top)
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end
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-- Obtain position of the first kelp unsubmerged.
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local function get_kelp_unsubmerged(pos, node)
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local x,y,z = pos.x, pos.y, pos.z
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local height = get_kelp_height(node.param2)
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for i=1,height do
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local walk_pos = {x=x, y=y + i, z=z}
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if minetest.get_item_group(minetest.get_node(walk_pos).name, "water") == 0 then
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return walk_pos
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end
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end
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return nil
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end
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-- Obtain next param2 if grown
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local function grow_param2_step(param2)
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-- TODO: allow kelp to grow bypass this limit according to MC rules.
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-- https://minecraft.gamepedia.com/Kelp
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local old_param2 = param2
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param2 = param2+16 - param2 % 16
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if param2 > 240 then
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param2 = 240
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end
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return param2, param2 ~= old_param2
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end
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local function kelp_place(pos, node, pos_top, def_top, is_downward_flowing)
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-- Liquid source: Grow normally
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minetest.set_node(pos, node)
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-- Flowing liquid: Grow 1 step, but also turn the top node into a liquid source
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if is_downward_flowing then
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local alt_liq = def_top.liquid_alternative_source
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if alt_liq then
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minetest.set_node(pos_top, {name=alt_liq})
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end
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end
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end
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local function kelp_on_place(itemstack, placer, pointed_thing)
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if pointed_thing.type ~= "node" or not placer then
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return itemstack
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end
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local player_name = placer:get_player_name()
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local pos_under = pointed_thing.under
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local pos_above = pointed_thing.above
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local node_under = minetest.get_node(pos_under)
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local nu_name = node_under.name
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local def_under = minetest.registered_nodes[nu_name]
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if def_under and def_under.on_rightclick and not placer:get_player_control().sneak then
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return def_under.on_rightclick(pos_under, node_under,
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placer, itemstack, pointed_thing) or itemstack
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end
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if minetest.is_protected(pos_under, player_name) or
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minetest.is_protected(pos_above, player_name) then
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minetest.log("action", player_name
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.. " tried to place " .. itemstack:get_name()
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.. " at protected position "
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.. minetest.pos_to_string(pos_under))
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minetest.record_protection_violation(pos_under, player_name)
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return itemstack
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end
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local new_kelp = false
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local is_downward_flowing = false
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local pos_top, node_top, def_top
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-- When placed on kelp.
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if minetest.get_item_group(nu_name, "kelp") == 1 then
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node_under.param2, new_kelp = grow_param2_step(node_under.param2)
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-- Kelp must not reach the height limit.
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-- Kelp must also be placed on top of kelp to add kelp.
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if not new_kelp or pos_under.y >= pos_above.y then
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return itemstack
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end
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pos_top, node_top = get_kelp_top(pos_under, node_under)
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def_top = minetest.registered_nodes[node_top.name]
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-- When placed on surface.
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else
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for _,surface in pairs(surfaces) do
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-- Surface must support kelp
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if nu_name == surface[2] then
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node_under.name = "mcl_ocean:kelp_" ..surface[1]
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node_under.param2 = minetest.registered_items[nu_name].place_param2 or 16
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new_kelp = true
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end
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end
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-- Kelp must also be placed on top of surface to add new kelp.
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if not new_kelp or pos_under.y >= pos_above.y then
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return itemstack
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end
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pos_top = pos_above
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node_top = minetest.get_node(pos_above)
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def_top = minetest.registered_nodes[node_above.name]
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end
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-- New kelp must also be submerged in water.
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is_downward_flowing = is_downward_flowing(pos_top, node_top, def_top)
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if not (is_submerged(node_top, def_top) and is_downward_flowing) then
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return itemstack
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end
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-- Play sound, place surface/kelp and take away an item
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local def_node = minetest.registered_items[nu_name]
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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
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kelp_place(pos_under, node_under, pos_top, def_top, is_downward_flowing)
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if not minetest.is_creative_enabled(player_name) then
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itemstack:take_item()
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end
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return itemstack
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end
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-- From kelp at pos, drop kelp until reaching its height.
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local function kelp_drop(pos, height)
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local x,y,z = pos.x,pos.y,pos.z
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for i=1,height do
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minetest.add_item({x=x, y=y+i, z=z}, "mcl_ocean:kelp")
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end
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end
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-- Dig kelp:
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-- Each kelp from broken stem until the top drop a single item
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-- Kelp's height decreases to the height below dig_pos
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local function kelp_dig(dig_pos, pos, node, is_drop)
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local param2 = node.param2
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local height = get_kelp_height(param2)
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-- pos.y points to the surface, offset needed to point to the first kelp
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local new_height = dig_pos.y - (pos.y+1)
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-- Digs the entire kelp: invoke after_dig_node to set_node
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if new_height == 0 then
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if is_drop then
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kelp_drop(dig_pos, height)
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end
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minetest.set_node(pos, {name=minetest.registered_nodes[node.name].node_dig_prediction})
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-- Digs the kelp beginning at a height
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else
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if is_drop then
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kelp_drop(dig_pos, height - new_height)
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end
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minetest.set_node(pos, {name=node.name, param=node.param, param2=16*new_height})
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end
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end
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minetest.register_craftitem("mcl_ocean:kelp", {
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description = S("Kelp"),
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_tt_help = S("Grows in water on dirt, sand, gravel"),
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_doc_items_create_entry = false,
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inventory_image = "mcl_ocean_kelp_item.png",
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wield_image = "mcl_ocean_kelp_item.png",
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on_place = kelp_on_place,
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groups = { deco_block = 1 },
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})
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-- Kelp nodes: kelp on a surface node
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for s=1, #surfaces do
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local def = minetest.registered_nodes[surfaces[s][2]]
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local alt
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if surfaces[s][3] == 1 then
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alt = surfaces[s][2]
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end
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local sounds = table.copy(def.sounds)
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local leaf_sounds = mcl_sounds.node_sound_leaves_defaults()
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sounds.dig = leaf_sounds.dig
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sounds.dug = leaf_sounds.dug
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sounds.place = leaf_sounds.place
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local tt_help, doc_longdesc, doc_img, desc
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if surfaces[s][1] == "dirt" then
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doc_longdesc = S("Kelp grows inside water on top of dirt, sand or gravel.")
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desc = S("Kelp")
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doc_create = true
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doc_img = "mcl_ocean_kelp_item.png"
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else
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doc_create = false
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end
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minetest.register_node("mcl_ocean:kelp_"..surfaces[s][1], {
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_doc_items_entry_name = desc,
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_doc_items_longdesc = doc_longdesc,
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_doc_items_create_entry = doc_create,
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_doc_items_image = doc_img,
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drawtype = "plantlike_rooted",
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paramtype = "light",
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paramtype2 = "leveled",
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place_param2 = 16,
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tiles = def.tiles,
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special_tiles = {
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{
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image = "mcl_ocean_kelp_plant.png",
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animation = {type="vertical_frames", aspect_w=16, aspect_h=16, length=2.0},
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tileable_vertical = true,
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}
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},
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inventory_image = "("..def.tiles[1]..")^mcl_ocean_kelp_item.png",
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wield_image = "mcl_ocean_kelp_item.png",
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selection_box = {
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type = "fixed",
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fixed = {
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{ -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
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{ -0.5, 0.5, -0.5, 0.5, 1.5, 0.5 },
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},
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},
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groups = { dig_immediate = 3, deco_block = 1, plant = 1, kelp = 1, falling_node = surfaces[s][3] },
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sounds = sounds,
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node_dig_prediction = surfaces[s][2],
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after_dig_node = function(pos)
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minetest.set_node(pos, {name=surface[s][2]})
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end,
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on_dig = function(pos, node, digger)
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local is_drop = true
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if digger and minetest.is_creative_enabled(digger:get_player_name()) then
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is_drop = false
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end
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kelp_dig(pos, pos, node, is_drop)
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end,
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drop = "", -- drops are handled in on_dig
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_mcl_falling_node_alternative = alt,
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_mcl_hardness = 0,
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_mcl_blast_resistance = 0,
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})
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if mod_doc and surfaces[s][1] ~= "dirt" then
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doc.add_entry_alias("nodes", "mcl_ocean:kelp_dirt", "nodes", "mcl_ocean:kelp_"..surfaces[s][1])
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end
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end
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if mod_doc then
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doc.add_entry_alias("nodes", "mcl_ocean:kelp_dirt", "craftitems", "mcl_ocean:kelp")
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end
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-- Dried kelp stuff
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-- TODO: This is supposed to be eaten very fast
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minetest.register_craftitem("mcl_ocean:dried_kelp", {
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description = S("Dried Kelp"),
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_doc_items_longdesc = S("Dried kelp is a food item."),
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inventory_image = "mcl_ocean_dried_kelp.png",
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wield_image = "mcl_ocean_dried_kelp.png",
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groups = { food = 2, eatable = 1 },
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on_place = minetest.item_eat(1),
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on_secondary_use = minetest.item_eat(1),
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groups = { food = 2, eatable = 1 },
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_mcl_saturation = 0.6,
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})
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local mod_screwdriver = minetest.get_modpath("screwdriver") ~= nil
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local on_rotate
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if mod_screwdriver then
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on_rotate = screwdriver.rotate_3way
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end
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minetest.register_node("mcl_ocean:dried_kelp_block", {
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description = S("Dried Kelp Block"),
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_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" },
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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(),
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paramtype2 = "facedir",
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on_place = mcl_util.rotate_axis,
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on_rotate = on_rotate,
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_mcl_hardness = 0.5,
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_mcl_blast_resistance = 12.5,
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})
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minetest.register_craft({
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type = "cooking",
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recipe = "mcl_ocean:kelp",
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output = "mcl_ocean:dried_kelp",
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cooktime = 10,
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})
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minetest.register_craft({
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recipe = {
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{ "mcl_ocean:dried_kelp","mcl_ocean:dried_kelp","mcl_ocean:dried_kelp" },
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{ "mcl_ocean:dried_kelp","mcl_ocean:dried_kelp","mcl_ocean:dried_kelp" },
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{ "mcl_ocean:dried_kelp","mcl_ocean:dried_kelp","mcl_ocean:dried_kelp" },
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},
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output = "mcl_ocean:dried_kelp_block",
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})
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minetest.register_craft({
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recipe = {
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{ "mcl_ocean:dried_kelp_block" },
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},
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output = "mcl_ocean:dried_kelp 9",
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})
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minetest.register_craft({
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type = "fuel",
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recipe = "mcl_ocean:dried_kelp_block",
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burntime = 200,
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})
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-- Grow kelp
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minetest.register_abm({
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label = "Kelp growth",
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nodenames = { "group:kelp" },
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-- interval = 45,
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-- chance = 12,
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interval = 1,
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chance = 1,
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catch_up = false,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local grow
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-- Grow kelp by 1 node length if it would grow inside water
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node.param2, grow = grow_param2_step(node.param2)
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local pos_top, node_top = get_kelp_top(pos, node)
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local def_top = minetest.registered_nodes[node_top.name]
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if grow and is_submerged(node_top, def_top) then
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kelp_place(pos, node, pos_top, def_top,
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is_downward_flowing(pos_top, node_top, def_top))
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end
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end,
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})
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-- Break kelp not underwater.
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minetest.register_abm({
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label = "Kelp drops",
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nodenames = { "group:kelp" },
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interval = 0.25,
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chance = 1,
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catch_up = false,
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action = function(pos, node)
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local dig_pos = get_kelp_unsubmerged(pos, node)
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if dig_pos then
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kelp_dig(dig_pos, pos, node, true)
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end
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end
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})
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