placing kelp now creates water sources, small refactoring.
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iliekprogrammar
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23f69dfd1e
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ebf9f8c918
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@ -1,7 +1,9 @@
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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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-- 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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-- 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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@ -12,22 +14,13 @@ local surfaces = {
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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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local liquidtype = nodedef.liquidtype
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-- TODO: is it OK to optimize this to:
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-- return nodedef.liquidtype
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if liquidtype == "source" then
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return "source"
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elseif liquidtype == "flowing" then
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return "flowing"
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else
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minetest.chat_send_all("its NOT OK to optimize into return nodedef.liquidtype :(")
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end
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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 inside downward flowing water)
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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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@ -41,10 +34,12 @@ local function is_downward_flowing(pos, node, nodedef, is_above)
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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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@ -52,7 +47,7 @@ local function get_kelp_top(pos, node)
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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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-- 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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@ -65,20 +60,32 @@ local function get_kelp_unsubmerged(pos, node)
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return nil
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end
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local function grow_param2_step(param2, snap_into_grid)
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local old_param2 = param2
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param2 = param2 + 16
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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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if snap_into_grid and (param2 % 16 ~= 0) then
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param2 = param2 - (param2 % 16)
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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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@ -89,9 +96,7 @@ local function kelp_on_place(itemstack, placer, pointed_thing)
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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 node_above = minetest.get_node(pos_above)
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local def_under = minetest.registered_nodes[nu_name]
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local def_above = minetest.registered_nodes[node_above.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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@ -109,59 +114,52 @@ local function kelp_on_place(itemstack, placer, pointed_thing)
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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 be placed on top of kelp to add kelp.
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if not new_kelp or
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pos_under.y >= pos_above.y or pos_under.x ~= pos_above.x or pos_under.z ~= pos_above.z then
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return itemstack
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end
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-- TODO: is this even possible???
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if pos_under.y < pos_above.y and (pos_under.x ~= pos_above.x or pos_under.z ~= pos_above.z) then
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minetest.chat_send_all(dump2(pos_under, "pos_under")) --DEBUG
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end
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-- New kelp top must also be submerged in water.
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local pos_top, node_top = get_kelp_top(pos_under, node_under)
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local def_top = minetest.registered_nodes[node_top.name]
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if not (is_submerged(node_top, def_top) and is_downward_flowing(pos_top, node_top, def_top)) then
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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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-- Surface must support kelp
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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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-- The surface must support kelp
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-- Kelp must be placed on top of surface to add new kelp.
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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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-- New kelp must also be submerged in water.
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if not (is_submerged(node_above, def_above) and is_downward_flowing(pos_above, node_above, def_above)) then
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return itemstack
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end
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node_under.param2 = minetest.registered_items[nu_name].place_param2 or 16
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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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-- Play sound, set surface/kelp and take away an item
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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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minetest.set_node(pos_under, node_under)
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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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@ -169,6 +167,7 @@ local function kelp_on_place(itemstack, placer, pointed_thing)
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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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@ -265,8 +264,6 @@ for s=1, #surfaces do
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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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-- 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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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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@ -360,25 +357,14 @@ minetest.register_abm({
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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 grown
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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, true)
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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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local submerged = is_submerged(node_top, def_top)
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if grow then
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if submerged == "source" then
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-- Liquid source: Grow normally
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minetest.set_node(pos, node)
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elseif submerged == "flowing" and is_downward_flowing(pos_top, node_top, def_top) then
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-- Flowing liquid: Grow 1 step, but also turn the top node into a liquid source
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minetest.set_node(pos, node)
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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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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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