forked from VoxeLibre/VoxeLibre
530 lines
17 KiB
Lua
530 lines
17 KiB
Lua
-- 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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-- TODO: In MC, you can't actually destroy kelp by bucket'ing water in the middle.
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-- However, because of the plantlike_rooted hack, we'll just allow it for now.
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local S = minetest.get_translator("mcl_ocean")
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local mod_doc = minetest.get_modpath("doc") ~= nil
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--------------------------------------------------------------------------------
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-- local-ify runtime functions
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--------------------------------------------------------------------------------
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-- objects
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local registered_items = minetest.registered_items
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local registered_nodes = minetest.registered_nodes
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-- functions
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local mt_get_item_group = minetest.get_item_group
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local mt_get_node = minetest.get_node
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local mt_set_node = minetest.set_node
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local mt_add_item = minetest.add_item
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local mt_sound_play = minetest.sound_play
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local mt_is_creative_enabled = minetest.is_creative_enabled
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local mt_is_protected = minetest.is_protected
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local mt_hash_node_position = minetest.hash_node_position
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local mt_get_node_timer = minetest.get_node_timer
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-- DEBUG: functions
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local chatlog = minetest.chat_send_all
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--------------------------------------------------------------------------------
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-- Kelp API
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--------------------------------------------------------------------------------
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kelp = {}
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-- Is this water?
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-- Returns the liquidtype, if indeed water.
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local function is_submerged(node, nodedef)
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if mt_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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kelp.is_submerged = is_submerged
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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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local 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.
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-- (this is needed due a weird quirk in the definition of "downwards flowing"
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-- liquids in Minetest)
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local node_above = mt_get_node({x=pos.x,y=pos.y+1,z=pos.z})
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local nodedef_above = registered_nodes[node_above.name]
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result = is_submerged(node_above, nodedef_above)
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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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kelp.is_downward_flowing = is_downward_flowing
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-- Converts param2 to kelp height.
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local function get_height(param2)
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return math.floor(param2 / 16)
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end
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kelp.get_height = get_height
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-- Obtain pos and node of the top of kelp.
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local function get_tip(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, mt_get_node(pos_top)
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end
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kelp.get_tip = get_tip
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-- Obtain position of the first kelp unsubmerged.
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local function find_unsubmerged(pos, node)
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local x,y,z = pos.x, pos.y, pos.z
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local height = get_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 mt_get_item_group(mt_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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kelp.find_unsubmerged = find_unsubmerged
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-- Obtain next param2.
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local function next_param2(param2)
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local old_param2 = param2
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param2 = param2+16 - param2 % 16
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return param2, param2 ~= old_param2
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end
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kelp.next_param2 = next_param2
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-- Grow next kelp.
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local function next_grow(pos, node, pos_top, def_top, is_downward_flowing)
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-- Liquid source: Grow normally.
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mt_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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mt_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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kelp.next_grow = next_grow
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-- Drops the items for detached kelps.
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local function detach_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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mt_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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kelp.detach_drop = detach_drop
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-- Detach the kelp at dig_pos, and drop their items.
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-- Synonyous to digging the kelp
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local function detach_dig(dig_pos, pos, node, is_drop)
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local param2 = node.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 mt_set_node.
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if new_height <= 0 then
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if is_drop then
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detach_drop(dig_pos, get_height(param2))
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end
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mt_set_node(pos, {
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name=registered_nodes[node.name].node_dig_prediction,
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param=node.param, param2=0 })
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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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detach_drop(dig_pos, get_height(param2) - new_height)
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end
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mt_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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kelp.detach_dig = detach_dig
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--------------------------------------------------------------------------------
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-- Kelp callback functions
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--------------------------------------------------------------------------------
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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 = mt_get_node(pos_under)
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local nu_name = node_under.name
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local def_under = 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 mt_is_protected(pos_under, player_name) or
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mt_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 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 mt_get_item_group(nu_name, "kelp") == 1 then
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node_under.param2, new_kelp = next_param2(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_tip(pos_under, node_under)
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def_top = registered_nodes[node_top.name]
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-- When placed on surface.
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else
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local surfaces = kelp.surfaces or surfaces
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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.nodename then
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node_under.name = "mcl_ocean:kelp_" ..surface.name
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node_under.param2 = registered_items[nu_name].place_param2 or 16
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new_kelp = true
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break
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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 = mt_get_node(pos_above)
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def_top = registered_nodes[node_top.name]
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end
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-- New kelp must also be submerged in water.
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downward_flowing = is_downward_flowing(pos_top, node_top, def_top)
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if not (is_submerged(node_top, def_top) or 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 = registered_items[nu_name]
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if def_node.sounds then
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mt_sound_play(def_node.sounds.place, { gain = 0.5, pos = pos_under }, true)
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end
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next_grow(pos_under, node_under, pos_top, def_top, downward_flowing)
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if not mt_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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kelp.kelp_on_place = kelp_on_place
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local function surface_on_dig(pos, node, digger)
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-- TODO: poll on whether if players like dropping kelp in creative
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-- detach_dig(pos, pos, node,
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-- not (digger and mt_is_creative_enabled(digger:get_player_name())))
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detach_dig(pos, pos, node, true)
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end
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kelp.surface_on_dig = surface_on_dig
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local function surface_after_dig_node(pos, node)
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return mt_set_node(pos, {name=registred_nodes[node.name].node_dig_prediction})
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end
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kelp.surface_after_dig_node = surface_after_dig_node
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local function grow_kelp(pos, node)
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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 = next_param2(node.param2)
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local pos_top, node_top = get_tip(pos, node)
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local def_top = registered_nodes[node_top.name]
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if grow and is_submerged(node_top, def_top) then
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next_grow(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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kelp.grow_kelp = grow_kelp
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local kelp_timers_idx = {}
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local kelp_timers = {}
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local function surface_register_nodetimer(pos, node)
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local pos_hash = mt_hash_node_position(pos)
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if kelp_timers_idx[pos_hash] then
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return
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end
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local timer = mt_get_node_timer(pos)
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table.insert(kelp_timers, timer)
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kelp_timers_idx[pos_hash] = #kelp_timers
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chatlog("added a timer. Currently " ..tostring(#kelp_timers) .." timers")
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end
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kelp.surface_register_nodetiemr = surface_register_nodetimer
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--------------------------------------------------------------------------------
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-- Kelp registration API
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--------------------------------------------------------------------------------
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-- List of supported surfaces for seagrass and kelp.
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local surfaces = {
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{ name="dirt", nodename="mcl_core:dirt", },
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{ name="sand", nodename="mcl_core:sand", },
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{ name="redsand", nodename="mcl_core:redsand", },
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{ name="gravel", nodename="mcl_core:gravel", },
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}
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kelp.surfaces = surfaces
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local registered_surfaces = {}
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kelp.registered_surfaces = registered_surfaces
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-- Commented keys are the ones obtained using register_kelp_surface.
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-- If you define your own keys, that keys will be used instead.
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local surface_deftemplate = {
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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.falling_node = is_falling,
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groups = { dig_immediate = 3, deco_block = 1, plant = 1, kelp = 1, },
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--sounds = sounds,
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--node_dig_prediction = nodename,
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after_dig_node = surface_after_dig_node,
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on_dig = surface_on_dig,
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drop = "", -- drops are handled in on_dig
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--_mcl_falling_node_alternative = is_falling and nodename or nil,
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_mcl_hardness = 0,
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_mcl_blast_resistance = 0,
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}
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kelp.surface_deftemplate = surface_deftemplate
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-- Commented keys are the ones obtained using register_kelp_surface.
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local surface_docs = {
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-- entry_id_orig = nodename,
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_doc_items_entry_name = S("Kelp"),
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_doc_items_longdesc = S("Kelp grows inside water on top of dirt, sand or gravel."),
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--_doc_items_create_entry = doc_create,
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_doc_items_image = "mcl_ocean_kelp_item.png",
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}
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kelp.surface_docs = surface_docs
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--[==[--
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register_kelp_surface(surface[, surface_deftemplate[, surface_docs]])
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surface: table with the specifications below. See also kelp.surface.
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{
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name="dirt",
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The name of the surface. This will appended to the surface's nodedef name
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nodename="mcl_core:dirt"
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The nodename of the surface kelp can be planted on.
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}
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surface_deftemplate: modifiable nodedef template. See also kelp.surface_deftempate.
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DO NOT RE-USE THE SAME DEFTEMPLATE. create copies.
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surface_docs: table with keys related to docs. See also kelp.surface_docs.
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--]==]--
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local leaf_sounds = mcl_sounds.node_sound_leaves_defaults()
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local function register_kelp_surface(surface, surface_deftemplate, surface_docs)
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local name = surface.name
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local nodename = surface.nodename
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local def = registered_nodes[nodename]
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local def_tiles = def.tiles
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local surfacename = "mcl_ocean:kelp_"..name
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local surface_deftemplate = surface_deftemplate or kelp.surface_deftemplate -- optional param
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local doc_create = surface.doc_create or false
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local surface_docs = surface_docs or kelp.surface_docs
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if doc_create then
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surface_deftemplate._doc_items_entry_name = surface_docs._doc_items_entry_name
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surface_deftemplate._doc_items_longdesc = surface_docs._doc_items_longdesc
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surface_deftemplate._doc_items_create_entry = true
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surface_deftemplate._doc_items_image = surface_docs._doc_items_image
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-- Takes the first surface with docs
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if not surface_docs.entry_id_orig then
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surface_docs.entry_id_orig = nodename
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end
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elseif mod_doc then
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doc.add_entry_alias("nodes", surface_docs.entry_id_orig, "nodes", surfacename)
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end
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local sounds = table.copy(def.sounds)
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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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surface_deftemplate.tiles = surface_deftemplate.tiles or def_tiles
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surface_deftemplate.inventory_image = surface_deftemplate.inventory_image or "("..def_tiles[1]..")^mcl_ocean_kelp_item.png"
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surface_deftemplate.sounds = surface_deftemplate.sound or sounds
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local falling_node = mt_get_item_group(nodename, "falling_node")
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surface_deftemplate.node_dig_prediction = surface_deftemplate.node_dig_prediction or nodename
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surface_deftemplate.groups.faling_node = surface_deftemplate.groups.faling_node or falling_node
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surface_deftemplate._mcl_falling_node_alternative = surface_deftemplate._mcl_falling_node_alternative or (falling_node and nodename or nil)
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minetest.register_node(surfacename, surface_deftemplate)
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end
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-- Kelp surfaces nodes ---------------------------------------------------------
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-- Dirt must be registered first, for the docs
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register_kelp_surface(surfaces[1], table.copy(surface_deftemplate), surface_docs)
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for i=2, #surfaces do
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register_kelp_surface(surfaces[i], table.copy(surface_deftemplate), surface_docs)
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end
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-- Kelp item -------------------------------------------------------------------
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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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if mod_doc then
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doc.add_entry_alias("nodes", surface_docs.entry_id_orig, "craftitems", "mcl_ocean:kelp")
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end
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-- Dried kelp ------------------------------------------------------------------
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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" },
|
|
groups = { handy = 1, building_block = 1, flammable = 2, fire_encouragement = 30, fire_flammability = 60 },
|
|
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",
|
|
})
|
|
minetest.register_craft({
|
|
type = "fuel",
|
|
recipe = "mcl_ocean:dried_kelp_block",
|
|
burntime = 200,
|
|
})
|
|
|
|
-- ABMs ------------------------------------------------------------------------
|
|
minetest.register_abm({
|
|
label = "mcl_ocean:Kelp growth",
|
|
nodenames = { "group:kelp" },
|
|
interval = 45,
|
|
chance = 12,
|
|
catch_up = false,
|
|
action = grow_kelp,
|
|
})
|
|
|
|
minetest.register_lbm({
|
|
label = "Kelp timer registration",
|
|
name = "mcl_ocean:kelp_timer_registration",
|
|
nodenames = { "group:kelp" },
|
|
run_at_every_load = true,
|
|
action = surface_register_nodetimer,
|
|
})
|
|
|
|
-- TODO: test if nodetimers are more efficient than ABM
|
|
-- -- Break kelp not underwater.
|
|
-- minetest.register_abm({
|
|
-- label = "Kelp drops",
|
|
-- nodenames = { "group:kelp" },
|
|
-- interval = 0.5,
|
|
-- chance = 1,
|
|
-- catch_up = false,
|
|
-- action = function(pos, node)
|
|
-- local dig_pos = find_unsubmerged(pos, node)
|
|
-- if dig_pos then
|
|
-- detach_dig(dig_pos, pos, node, true)
|
|
-- end
|
|
-- end
|
|
-- })
|