mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-09-12 16:42:11 +02:00
456 lines
12 KiB
Lua
456 lines
12 KiB
Lua
local modname = minetest.get_current_modname()
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local modpath = minetest.get_modpath(modname)
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local mod = mcl_minecarts
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local S = minetest.get_translator(modname)
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mod.RAIL_GROUPS = {
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STANDARD = 1,
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CURVES = 2,
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}
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-- Inport functions and constants from elsewhere
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local table_merge = mcl_util.table_merge
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local check_connection_rules = mod.check_connection_rules
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local update_rail_connections = mod.update_rail_connections
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local minetest_fourdir_to_dir = minetest.fourdir_to_dir
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local minetest_dir_to_fourdir = minetest.dir_to_fourdir
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local vector_offset = vector.offset
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local vector_equals = vector.equals
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local north = mod.north
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local south = mod.south
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local east = mod.east
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local west = mod.west
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--- Rail direction Handleres
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local function rail_dir_straight(pos, dir, node)
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dir = vector.new(dir)
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dir.y = 0
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if node.param2 == 0 or node.param2 == 2 then
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if vector_equals(dir, north) then
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return north
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else
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return south
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end
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else
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if vector_equals(dir,east) then
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return east
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else
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return west
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end
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end
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end
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local function rail_dir_sloped(pos, dir, node)
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local uphill = minetest_fourdir_to_dir(node.param2)
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local downhill = minetest_fourdir_to_dir((node.param2+2)%4)
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local up_uphill = vector_offset(uphill,0,1,0)
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if vector_equals(dir, uphill) or vector_equals(dir, up_uphill) then
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return up_uphill
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else
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return downhill
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end
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end
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-- Fourdir to cardinal direction
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-- 0 = north
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-- 1 = east
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-- 2 = south
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-- 3 = west
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-- This takes a table `dirs` that has one element for each cardinal direction
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-- and which specifies the direction for a cart to continue in when entering
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-- a rail node in the direction of the cardinal. This function takes node
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-- rotations into account.
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local function rail_dir_from_table(pos, dir, node, dirs)
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dir = vector.new(dir)
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dir.y = 0
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local dir_fourdir = (minetest_dir_to_fourdir(dir) - node.param2 + 4) % 4
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local new_fourdir = (dirs[dir_fourdir] + node.param2) % 4
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return minetest_fourdir_to_dir(new_fourdir)
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end
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local CURVE_RAIL_DIRS = { [0] = 1, 1, 2, 2, }
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local function rail_dir_curve(pos, dir, node)
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return rail_dir_from_table(pos, dir, node, CURVE_RAIL_DIRS)
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end
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local function rail_dir_tee_off(pos, dir, node)
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return rail_dir_from_table(pos, dir, node, CURVE_RAIL_DIRS)
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end
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local TEE_RAIL_ON_DIRS = { [0] = 0, 1, 1, 0 }
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local function rail_dir_tee_on(pos, dir, node)
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return rail_dir_from_table(pos, dir, node, TEE_RAIL_ON_DIRS)
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end
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local function rail_dir_cross(pos, dir, node)
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dir = vector.new(dir)
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dir.y = 0
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-- Always continue in the same direction. No direction changes allowed
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return dir
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end
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-- Setup shared text
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local railuse = S(
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"Place them on the ground to build your railway, the rails will automatically connect to each other and will"..
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" turn into curves, T-junctions, crossings and slopes as needed."
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)
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mod.text = mod.text or {}
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mod.text.railuse = railuse
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local BASE_DEF = {
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drawtype = "mesh",
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mesh = "flat_track.obj",
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paramtype = "light",
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paramtype2 = "4dir",
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stack_max = 64,
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sounds = mcl_sounds.node_sound_metal_defaults(),
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is_ground_content = true,
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paramtype = "light",
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use_texture_alpha = "clip",
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collision_box = {
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type = "fixed",
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fixed = { -8/16, -8/16, -8/16, 8/16, -7/16, 8/15 }
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},
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selection_box = {
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type = "fixed",
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fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
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},
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groups = {
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handy=1, pickaxey=1,
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attached_node=1,
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rail=1,
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connect_to_raillike=minetest.raillike_group("rail"),
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dig_by_water=0,destroy_by_lava_flow=0,
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transport=1
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},
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description = S("New Rail"), -- Temporary name to make debugging easier
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_tt_help = S("Track for minecarts"),
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_doc_items_usagehelp = railuse,
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_doc_items_longdesc = S("Rails can be used to build transport tracks for minecarts. Normal rails slightly slow down minecarts due to friction."),
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on_place = function(itemstack, placer, pointed_thing)
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local node_name = minetest.get_node(pointed_thing.under).name
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-- Don't allow placing rail above rail
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if minetest.get_item_group(node_name,"rail") == 0 then
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return minetest.item_place_node(itemstack, placer, pointed_thing)
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else
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return itemstack
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end
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end,
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after_place_node = function(pos, placer, itemstack, pointed_thing)
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update_rail_connections(pos)
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end,
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_mcl_minecarts = {
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get_next_dir = rail_dir_straight,
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},
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_mcl_blast_resistance = 0.7,
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_mcl_hardness = 0.7,
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}
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local SLOPED_RAIL_DEF = table.copy(BASE_DEF)
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table_merge(SLOPED_RAIL_DEF,{
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drawtype = "mesh",
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mesh = "sloped_track.obj",
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groups = {
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rail_slope = 1,
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not_in_creative_inventory = 1,
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},
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collision_box = {
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type = "fixed",
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fixed = {
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{ -0.5, -0.5, -0.5, 0.5, 0.0, 0.5 },
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{ -0.5, 0.0, 0.0, 0.5, 0.5, 0.5 }
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}
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},
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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, 0.0, 0.5 },
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{ -0.5, 0.0, 0.0, 0.5, 0.5, 0.5 }
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}
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},
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_mcl_minecarts = {
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get_next_dir = rail_dir_sloped,
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},
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})
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function mod.register_rail(itemstring, ndef)
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assert(ndef.tiles)
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-- Extract out the craft recipe
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local craft = ndef.craft
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ndef.craft = nil
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-- Add sensible defaults
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if not ndef.inventory_image then ndef.inventory_image = ndef.tiles[1] end
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if not ndef.wield_image then ndef.wield_image = ndef.tiles[1] end
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--print("registering rail "..itemstring.." with definition: "..dump(ndef))
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-- Make registrations
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minetest.register_node(itemstring, ndef)
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if craft then minetest.register_craft(craft) end
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end
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function mod.register_straight_rail(base_name, tiles, def)
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def = def or {}
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local base_def = table.copy(BASE_DEF)
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local sloped_def = table.copy(SLOPED_RAIL_DEF)
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local add = {
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tiles = { tiles[1] },
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drop = base_name,
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groups = {
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rail = mod.RAIL_GROUPS.STANDARD,
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},
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_mcl_minecarts = {
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base_name = base_name,
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can_slope = true,
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},
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}
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table_merge(base_def, add); table_merge(sloped_def, add)
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table_merge(base_def, def); table_merge(sloped_def, def)
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-- Register the base node
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mod.register_rail(base_name, base_def)
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base_def.craft = nil; sloped_def.craft = nil
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table_merge(base_def,{
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_mcl_minecarts = {
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railtype = "straight",
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},
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})
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-- Sloped variant
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mod.register_rail_sloped(base_name.."_sloped", table_merge(table.copy(sloped_def),{
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_mcl_minecarts = {
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get_next_dir = rail_dir_sloped,
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},
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mesecons = def.mesecons_sloped,
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tiles = { tiles[1] },
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_mcl_minecarts = {
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railtype = "sloped",
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},
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}))
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end
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function mod.register_curves_rail(base_name, tiles, def)
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def = def or {}
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local base_def = table.copy(BASE_DEF)
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local sloped_def = table.copy(SLOPED_RAIL_DEF)
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local add = {
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_mcl_minecarts = { base_name = base_name },
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groups = {
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rail = mod.RAIL_GROUPS.CURVES
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},
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drop = base_name,
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}
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table_merge(base_def, add); table_merge(sloped_def, add)
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table_merge(base_def, def); table_merge(sloped_def, def)
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-- Register the base node
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mod.register_rail(base_name, table_merge(table.copy(base_def),{
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tiles = { tiles[1] },
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_mcl_minecarts = {
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get_next_dir = rail_dir_straight,
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railtype = "straight",
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can_slope = true,
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},
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}))
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-- Update for other variants
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base_def.craft = nil
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table_merge(base_def, {
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groups = {
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not_in_creative_inventory = 1
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}
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})
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-- Corner variants
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mod.register_rail(base_name.."_corner", table_merge(table.copy(base_def),{
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tiles = { tiles[2] },
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_mcl_minecarts = {
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get_next_dir = rail_dir_curve,
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railtype = "corner",
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},
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}))
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-- Tee variants
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mod.register_rail(base_name.."_tee_off", table_merge(table.copy(base_def),{
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tiles = { tiles[3] },
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mesecons = {
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effector = {
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action_on = function(pos, node)
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local new_node = {name = base_name.."_tee_on", param2 = node.param2}
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minetest.swap_node(pos, new_node)
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end,
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rules = mesecon.rules.alldirs,
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}
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},
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_mcl_minecarts = {
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get_next_dir = rail_dir_tee_off,
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railtype = "tee",
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},
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}))
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mod.register_rail(base_name.."_tee_on", table_merge(table.copy(base_def),{
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tiles = { tiles[4] },
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_mcl_minecarts = {
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get_next_dir = rail_dir_tee_on,
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railtype = "tee",
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},
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mesecons = {
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effector = {
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action_off = function(pos, node)
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local new_node = {name = base_name.."_tee_off", param2 = node.param2}
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minetest.swap_node(pos, new_node)
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end,
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rules = mesecon.rules.alldirs,
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}
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}
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}))
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-- Sloped variant
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mod.register_rail_sloped(base_name.."_sloped", table_merge(table.copy(sloped_def),{
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description = S("Sloped Rail"), -- Temporary name to make debugging easier
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_mcl_minecarts = {
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get_next_dir = rail_dir_sloped,
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railtype = "tee",
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},
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tiles = { tiles[1] },
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}))
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-- Cross variant
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mod.register_rail(base_name.."_cross", table_merge(table.copy(base_def),{
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tiles = { tiles[5] },
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_mcl_minecarts = {
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get_next_dir = rail_dir_cross,
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railtype = "cross",
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},
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}))
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end
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function mod.register_rail_sloped(itemstring, def)
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assert(def.tiles)
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-- Build the node definition
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local ndef = table.copy(SLOPED_RAIL_DEF)
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table_merge(ndef, def)
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-- Add sensible defaults
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if not ndef.inventory_image then ndef.inventory_image = ndef.tiles[1] end
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if not ndef.wield_image then ndef.wield_image = ndef.tiles[1] end
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--print("registering sloped rail "..itemstring.." with definition: "..dump(ndef))
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-- Make registrations
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minetest.register_node(itemstring, ndef)
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end
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-- Redstone rules
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mod.rail_rules_long =
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{{x=-1, y= 0, z= 0, spread=true},
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{x= 1, y= 0, z= 0, spread=true},
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{x= 0, y=-1, z= 0, spread=true},
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{x= 0, y= 1, z= 0, spread=true},
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{x= 0, y= 0, z=-1, spread=true},
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{x= 0, y= 0, z= 1, spread=true},
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{x= 1, y= 1, z= 0},
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{x= 1, y=-1, z= 0},
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{x=-1, y= 1, z= 0},
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{x=-1, y=-1, z= 0},
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{x= 0, y= 1, z= 1},
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{x= 0, y=-1, z= 1},
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{x= 0, y= 1, z=-1},
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{x= 0, y=-1, z=-1}}
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dofile(modpath.."/rails/normal.lua")
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dofile(modpath.."/rails/activator.lua")
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dofile(modpath.."/rails/detector.lua")
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dofile(modpath.."/rails/powered.lua")
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-- Aliases
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if minetest.get_modpath("doc") then
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doc.add_entry_alias("nodes", "mcl_minecarts:golden_rail", "nodes", "mcl_minecarts:golden_rail_on")
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end
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local CURVY_RAILS_MAP = {
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["mcl_minecarts:rail"] = "mcl_minecarts:rail_v2",
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}
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for old,new in pairs(CURVY_RAILS_MAP) do
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nodenames = mcl_util.table_keys(STRAIGHT_RAILS_MAP),
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minetest.register_node(old, {
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drawtype = "raillike",
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inventory_image = new_def.inventory_image,
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groups = { rail = 1 },
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tiles = { new_def.tiles[1], new_def.tiles[1], new_def.tiles[1], new_def.tiles[1] },
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})
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end
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minetest.register_lbm({
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name = "mcl_minecarts:update_legacy_curvy_rails",
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nodenames = mcl_util.table_keys(CURVY_RAILS_MAP),
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action = function(pos, node)
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node.name = CURVY_RAILS_MAP[node.name]
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if node.name then
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minetest.swap_node(pos, node)
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mod.update_rail_connections(pos, { legacy = true, ignore_neighbor_connections = true })
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end
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end
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})
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local STRAIGHT_RAILS_MAP ={
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["mcl_minecarts:golden_rail"] = "mcl_minecarts:golden_rail_v2",
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["mcl_minecarts:golden_rail_on"] = "mcl_minecarts:golden_rail_v2_on",
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["mcl_minecarts:activator_rail"] = "mcl_minecarts:activator_rail_v2",
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["mcl_minecarts:activator_rail_on"] = "mcl_minecarts:activator_rail_v2_on",
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["mcl_minecarts:detector_rail"] = "mcl_minecarts:detector_rail_v2",
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["mcl_minecarts:detector_rail_on"] = "mcl_minecarts:detector_rail_v2_on",
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}
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for old,new in pairs(STRAIGHT_RAILS_MAP) do
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local new_def = minetest.registered_nodes[new]
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minetest.register_node(old, {
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drawtype = "raillike",
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inventory_image = new_def.inventory_image,
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groups = { rail = 1 },
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tiles = { new_def.tiles[1], new_def.tiles[1], new_def.tiles[1], new_def.tiles[1] },
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})
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end
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local TRANSLATE_RAILS_MAP = table.copy(STRAIGHT_RAILS_MAP)
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table_merge(TRANSLATE_RAILS_MAP, CURVY_RAILS_MAP)
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minetest.register_lbm({
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name = "mcl_minecarts:update_legacy_straight_rails",
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nodenames = mcl_util.table_keys(STRAIGHT_RAILS_MAP),
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run_at_every_load = true,
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action = function(pos, node)
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node.name = STRAIGHT_RAILS_MAP[node.name]
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if node.name then
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local connections = mod.get_rail_connections(pos, { legacy = true, ignore_neighbor_connections = true })
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if not mod.HORIZONTAL_STANDARD_RULES[connections] then
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-- Drop an immortal object at this location
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local item_entity = minetest.add_item(pos, ItemStack(node.name))
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if item_entity then
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item_entity:get_luaentity()._immortal = true
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end
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-- This is a configuration that doesn't exist in the new rail
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-- Replace with a standard rail
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node.name = "mcl_minecarts:rail_v2"
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end
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minetest.swap_node(pos, node)
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mod.update_rail_connections(pos, { legacy = true, ignore_neighbor_connections = true })
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end
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end
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})
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-- Convert old rail in the player's inventory to new rail
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minetest.register_on_joinplayer(function(player)
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local inv = player:get_inventory()
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local size = inv:get_size("main")
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for i=1,size do
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local stack = inv:get_stack("main", i)
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local new_name = TRANSLATE_RAILS_MAP[stack:get_name()]
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if new_name then
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stack:set_name(new_name)
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inv:set_stack("main", i, stack)
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end
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end
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end)
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