forked from minetest-mods/nether
Allow two or more portal types to be made with the same frame material
(provided they are different sized portals) Removes direct references to the registered_portals table
This commit is contained in:
Treer
SmallJoker
parent
f38211e55d
commit
83c9ad574f
129
init.lua
129
init.lua
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@ -130,7 +130,7 @@ local TraditionalPortalShape = {
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local p2
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if orientation == 0 then
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p2 = {x = p1.x + self.size.x - 1, y = p1.y + self.size.y - 1, z = p1.z }
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p2 = {x = p1.x + self.size.x - 1, y = p1.y + self.size.y - 1, z = p1.z }
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else
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p2 = {x = p1.x, y = p1.y + self.size.y - 1, z = p1.z + self.size.x - 1}
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end
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@ -233,10 +233,9 @@ local TraditionalPortalShape = {
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--=====================================================--
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local registered_portals = {
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-- todo: switch to lookup by name, ignite_portal can scan all registered portals
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["default:obsidian"] = {
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["netherportal"] = {
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name = "netherportal",
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shape = TraditionalPortalShape,
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wormhole_node_name = "nether:portal",
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wormhole_node_color = 0,
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@ -293,6 +292,40 @@ local function get_orientation_from_param2(param2)
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return param2 * 90
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end
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-- Combining frame_node_name, p1, and p2 will always be enough to uniquely identify a portal_defintion
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-- WITHOUT needing to inspect the world. register_portal() will enforce this.
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-- This function does not require the portal to be in a loaded chunk.
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-- Returns nil if no portal_defintion matches the arguments
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local function get_portal_defintion(frame_node_name, p1, p2)
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local size = vector.add(vector.subtract(p2, p1), 1)
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local rotated_size = {x = size.z, y = size.y, z = size.x}
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for _, portal_def in pairs(registered_portals) do
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if portal_def.frame_node_name == frame_node_name then
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if vector.equals(size, portal_def.shape.size) or vector.equals(rotated_size, portal_def.shape.size) then
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return portal_def
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end
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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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-- Returns a list of all portal_defintions with a frame made of frame_node_name.
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-- Ideally no two portal types will be built from the same frame material so this call might be enough
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-- to uniquely identify a portal_defintion without needing to inspect the world, HOWEVER we shouldn't
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-- cramp anyone's style and prohibit non-nether use of obsidian to make portals, so it returns a list.
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-- If the list contains more than one item then routines like ignite_portal() will have to search twice
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-- for a portal and take twice the CPU.
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local function list_portal_definitions_for_frame_node(frame_node_name)
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local result = {}
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for _, portal_def in pairs(registered_portals) do
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if portal_def.frame_node_name == frame_node_name then table.insert(result, portal_def) end
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end
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return result
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end
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local extinguish_portal -- the function will be assigned to this further down, rather than having to define the function before other functions can use it.
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local function set_portal_metadata(portal_definition, anchorPos, orientation, destination_wormholePos, ignite)
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@ -508,7 +541,8 @@ local function volume_is_natural(minp, maxp)
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local nodedef = minetest.registered_nodes[name]
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if not nodedef.is_ground_content then
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-- trees are natural but not "ground content"
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if nodedef.groups == nil or (nodedef.groups.tree == nil and nodedef.groups.leaves == nil) then
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local node_groups = nodedef.groups
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if node_groups == nil or (node_groups.tree == nil and node_groups.leaves == nil) then
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return false
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end
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end
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@ -630,39 +664,43 @@ local function ignite_portal(ignition_pos)
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local ignition_node_name = minetest.get_node(ignition_pos).name
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-- find which sort of portals are made from the node that was clicked on
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local portal_definition = registered_portals[ignition_node_name]
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if portal_definition == nil then
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return false -- no portals are made from the node at ignition_pos
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end
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local portal_definition_list = list_portal_definitions_for_frame_node(ignition_node_name)
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-- check it was a portal frame that the player is trying to ignite
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local anchorPos, orientation, is_ignited = is_portal_frame(portal_definition, ignition_pos)
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if anchorPos == nil then
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if DEBUG then minetest.chat_send_all("No portal frame found at " .. minetest.pos_to_string(ignition_pos)) end
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return false -- no portal is here
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elseif is_ignited then
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if DEBUG then
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local meta = minetest.get_meta(ignition_pos)
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if meta ~= nil then minetest.chat_send_all("This portal links to " .. meta:get_string("target") .. ". p1=" .. meta:get_string("p1") .. " p2=" .. meta:get_string("p2")) end
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for _, portal_definition in ipairs(portal_definition_list) do
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local continue = false
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-- check it was a portal frame that the player is trying to ignite
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local anchorPos, orientation, is_ignited = is_portal_frame(portal_definition, ignition_pos)
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if anchorPos == nil then
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if DEBUG then minetest.chat_send_all("No " .. portal_definition.name .. " portal frame found at " .. minetest.pos_to_string(ignition_pos)) end
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continue = true -- no portal is here, but perhaps there more than one portal type we need to search for
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elseif is_ignited then
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if DEBUG then
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local meta = minetest.get_meta(ignition_pos)
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if meta ~= nil then minetest.chat_send_all("This portal links to " .. meta:get_string("target") .. ". p1=" .. meta:get_string("p1") .. " p2=" .. meta:get_string("p2")) end
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end
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return false -- portal is already ignited
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end
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if continue == false then
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if DEBUG then minetest.chat_send_all("Found portal frame. Looked at " .. minetest.pos_to_string(ignition_pos) .. ", found at " .. minetest.pos_to_string(anchorPos) .. " orientation " .. orientation) end
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-- pick a destination
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local destination_wormholePos = portal_definition.shape.get_wormholePos_from_anchorPos(anchorPos, orientation)
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if anchorPos.y < NETHER_DEPTH then
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destination_wormholePos.y = find_surface_target_y(portal_definition, destination_wormholePos.x, destination_wormholePos.z)
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else
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local start_y = NETHER_DEPTH - math.random(500, 1500) -- Search start
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destination_wormholePos.y = find_nether_target_y(destination_wormholePos.x, destination_wormholePos.z, start_y)
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end
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if DEBUG then minetest.chat_send_all("Destinaton set to " .. minetest.pos_to_string(destination_wormholePos)) end
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-- ignition/BURN_BABY_BURN
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set_portal_metadata_and_ignite(portal_definition, anchorPos, orientation, destination_wormholePos)
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return true
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end
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return false -- portal is already ignited
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end
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if DEBUG then minetest.chat_send_all("Found portal frame. Looked at " .. minetest.pos_to_string(ignition_pos) .. ", found at " .. minetest.pos_to_string(anchorPos) .. " orientation " .. orientation) end
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-- pick a destination
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local destination_wormholePos = portal_definition.shape.get_wormholePos_from_anchorPos(anchorPos, orientation)
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if anchorPos.y < NETHER_DEPTH then
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destination_wormholePos.y = find_surface_target_y(portal_definition, destination_wormholePos.x, destination_wormholePos.z)
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else
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local start_y = NETHER_DEPTH - math.random(500, 1500) -- Search start
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destination_wormholePos.y = find_nether_target_y(destination_wormholePos.x, destination_wormholePos.z, start_y)
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end
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if DEBUG then minetest.chat_send_all("Destinaton set to " .. minetest.pos_to_string(destination_wormholePos)) end
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-- ignition/BURN_BABY_BURN
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set_portal_metadata_and_ignite(portal_definition, anchorPos, orientation, destination_wormholePos)
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return true
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end
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@ -672,23 +710,22 @@ extinguish_portal = function(pos, node_name) -- assigned rather than declared be
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-- mesecons seems to invoke action_off() 6 times every time you place a block?
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if DEBUG then minetest.chat_send_all("extinguish_portal" .. minetest.pos_to_string(pos) .. " " .. node_name) end
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-- find which sort of portals are made from the node that was clicked on
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local portal_definition = registered_portals[node_name]
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if portal_definition == nil then
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minetest.log("error", "extinguish_portal() invoked on " .. node_name .. " but no registered portal is constructed from " .. node_name)
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return false -- no portal frames are made from this type of node
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end
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local frame_node_name = portal_definition.frame_node_name
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local wormhole_node_name = portal_definition.wormhole_node_name
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local meta = minetest.get_meta(pos)
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local p1 = minetest.string_to_pos(meta:get_string("p1"))
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local p2 = minetest.string_to_pos(meta:get_string("p2"))
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local target = minetest.string_to_pos(meta:get_string("target"))
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if not p1 or not p2 then
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if p1 == nil or p2 == nil then
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return
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end
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local portal_definition = get_portal_defintion(node_name, p1, p2)
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if portal_definition == nil then
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minetest.log("error", "extinguish_portal() invoked on " .. node_name .. " but no registered portal is constructed from " .. node_name)
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return -- no portal frames are made from this type of node
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end
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local frame_node_name = portal_definition.frame_node_name
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local wormhole_node_name = portal_definition.wormhole_node_name
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minetest.get_node_timer(get_timerPos_from_p1_and_p2(p1, p2)):stop()
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for x = p1.x, p2.x do
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@ -872,7 +909,7 @@ function run_wormhole(pos, time_elapsed)
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if p1 ~= nil and p2 ~= nil then
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-- look up the portal shape by what it's built from, so we know where the wormhole nodes will be located
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if frame_node_name == nil then frame_node_name = minetest.get_node(pos).name end -- pos should be a frame node
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portal_definition = registered_portals[frame_node_name]
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portal_definition = get_portal_defintion(frame_node_name, p1, p2)
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if portal_definition == nil then
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minetest.log("error", "No portal with a \"" .. frame_node_name .. "\" frame is registered. run_wormhole" .. minetest.pos_to_string(pos) .. " was invoked but that location contains \"" .. frame_node_name .. "\"")
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else
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