mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-08-21 17:37:25 +02:00
Change connection rules again to allow building parallel track, tees and crosses), start implementing rail rules callbacks
This commit is contained in:
teknomunk
parent
75f394e5ab
commit
34f394d8dc
@ -15,40 +15,55 @@ local function table_merge(base, overlay)
|
||||
end
|
||||
|
||||
local north = vector.new( 0, 0, 1); local N = 1
|
||||
local south = vector.new( 0, 0,-1); local S = 2 -- Note: this is overwritten below
|
||||
local south = vector.new( 0, 0,-1); local S = 2 -- Note: S is overwritten below with the translator
|
||||
local east = vector.new( 1, 0, 0); local E = 4
|
||||
local west = vector.new(-1, 0, 0); local W = 8
|
||||
|
||||
local HORIZONTAL_CONNECTIONS = { north, south, east, west }
|
||||
local HORIZONTAL_STANDARD_MAPPINGS = {
|
||||
[N] = { "", 0 },
|
||||
[S] = { "", 0 },
|
||||
[N+S] = { "", 0 },
|
||||
local CONNECTIONS = { north, south, east, west }
|
||||
local HORIZONTAL_STANDARD_RULES = {
|
||||
[N] = { "", 0, mask = N, score = 1 },
|
||||
[S] = { "", 0, mask = S, score = 1 },
|
||||
[N+S] = { "", 0, mask = N+S, score = 2 },
|
||||
|
||||
[E] = { "", 1 },
|
||||
[W] = { "", 1 },
|
||||
[E+W] = { "", 1 },
|
||||
[E] = { "", 1, mask = E, score = 1 },
|
||||
[W] = { "", 1, mask = W, score = 1 },
|
||||
[E+W] = { "", 1, mask = E+W, score = 2 },
|
||||
}
|
||||
local HORIZONTAL_CURVES_MAPPINGS = {
|
||||
[N+E] = { "_corner", 3 },
|
||||
[N+W] = { "_corner", 2 },
|
||||
[S+E] = { "_corner", 0 },
|
||||
[S+W] = { "_corner", 1 },
|
||||
|
||||
[N+E+W] = { "_tee_off", 3 },
|
||||
[S+E+W] = { "_tee_off", 1 },
|
||||
[N+S+E] = { "_tee_off", 0 },
|
||||
[N+S+W] = { "_tee_off", 2 },
|
||||
local HORIZONTAL_CURVES_RULES = {
|
||||
[N+E] = { "_corner", 3, name = "ne corner", mask = N+E, score = 3 },
|
||||
[N+W] = { "_corner", 2, name = "nw corner", mask = N+W, score = 3 },
|
||||
[S+E] = { "_corner", 0, name = "se corner", mask = S+E, score = 3 },
|
||||
[S+W] = { "_corner", 1, name = "sw corner", mask = S+W, score = 3 },
|
||||
|
||||
-- [N+S+E+W] = "_cross",
|
||||
[N+E+W] = { "_tee_off", 3, mask = N+E+W, score = 4 },
|
||||
[S+E+W] = { "_tee_off", 1, mask = S+E+W, score = 4 },
|
||||
[N+S+E] = { "_tee_off", 0, mask = N+S+E, score = 4 },
|
||||
[N+S+W] = { "_tee_off", 2, mask = N+S+W, score = 4 },
|
||||
|
||||
[N+S+E+W] = { "_cross", 0, mask = N+S+E+W, score = 5 },
|
||||
}
|
||||
table_merge(HORIZONTAL_CURVES_MAPPINGS, HORIZONTAL_STANDARD_MAPPINGS)
|
||||
local HORIZONTAL_MAPPINGS_BY_RAIL_GROUP = {
|
||||
[1] = HORIZONTAL_STANDARD_MAPPINGS,
|
||||
[2] = HORIZONTAL_CURVES_MAPPINGS,
|
||||
|
||||
table_merge(HORIZONTAL_CURVES_RULES, HORIZONTAL_STANDARD_RULES)
|
||||
local HORIZONTAL_RULES_BY_RAIL_GROUP = {
|
||||
[1] = HORIZONTAL_STANDARD_RULES,
|
||||
[2] = HORIZONTAL_CURVES_RULES,
|
||||
}
|
||||
print(dump(HORIZONTAL_MAPPINGS_BY_RAIL_GROUP))
|
||||
local DIRECTION_BITS = {N, S, E, W}
|
||||
|
||||
local function check_connection_rule(pos, connections, rule)
|
||||
-- All bits in the mask must be set for the connection to be possible
|
||||
if bit.band(rule.mask,connections) ~= rule.mask then
|
||||
--print("Mask mismatch ("..tostring(rule.mask)..","..tostring(connections)..")")
|
||||
return false
|
||||
end
|
||||
|
||||
-- If there is an allow filter, that mush also return true
|
||||
if rule.allow and rule.allow(rule, connections, pos) then
|
||||
return false
|
||||
end
|
||||
|
||||
return true
|
||||
end
|
||||
|
||||
local function update_rail_connections(pos, update_neighbors)
|
||||
local node = minetest.get_node(pos)
|
||||
@ -59,38 +74,105 @@ local function update_rail_connections(pos, update_neighbors)
|
||||
end
|
||||
|
||||
-- Get the mappings to use
|
||||
local mappings = HORIZONTAL_MAPPINGS_BY_RAIL_GROUP[nodedef.groups.rail]
|
||||
if not mappings then return end
|
||||
local rules = HORIZONTAL_RULES_BY_RAIL_GROUP[nodedef.groups.rail]
|
||||
if nodedef._mcl_minecarts and nodedef._mcl_minecarts.connection_rules then -- Custom connection rules
|
||||
rules = nodedef._mcl_minecarts.connection_rules
|
||||
end
|
||||
if not rules then return end
|
||||
|
||||
-- Horizontal rules, Check for rails on each neighbor
|
||||
local connections = 0
|
||||
for i = 1,4 do
|
||||
local neighbor = vector.add(pos, HORIZONTAL_CONNECTIONS[i])
|
||||
for i,dir in ipairs(CONNECTIONS) do
|
||||
local neighbor = vector.add(pos, dir)
|
||||
local node = minetest.get_node(neighbor)
|
||||
local nodedef = minetest.registered_nodes[node.name]
|
||||
|
||||
if nodedef.groups.rail then
|
||||
connections = connections + DIRECTION_BITS[i]
|
||||
end
|
||||
|
||||
if update_neighbors then
|
||||
update_rail_connections(neighbor, false)
|
||||
-- TODO: modify to only allow connections to the ends of rails (direction rules)
|
||||
if (nodedef.groups or {}).rail and nodedef._mcl_minecarts and nodedef._mcl_minecarts.get_next_dir then
|
||||
local diff = vector.direction(neighbor, pos)
|
||||
local next_dir = nodedef._mcl_minecarts.get_next_dir(neighbor, diff, node)
|
||||
if next_dir == diff then
|
||||
connections = connections + bit.lshift(1,i - 1)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
local mapping = mappings[connections]
|
||||
if mapping then
|
||||
local new_name = nodedef._mcl_minecarts.base_name..mapping[1]
|
||||
if new_name ~= node.name or node.param2 ~= mapping[2] then
|
||||
print("swapping "..node.name.." for "..new_name..","..tostring(mapping[2]).." at "..tostring(pos))
|
||||
node.name = new_name
|
||||
node.param2 = mapping[2]
|
||||
minetest.swap_node(pos, node)
|
||||
-- Select the best allowed connection
|
||||
local rule = nil
|
||||
local score = 0
|
||||
for k,r in pairs(rules) do
|
||||
if check_connection_rule(pos, connections, r) then
|
||||
if r.score > score then
|
||||
--print("Best rule so far is "..dump(r))
|
||||
score = r.score
|
||||
rule = r
|
||||
end
|
||||
end
|
||||
end
|
||||
if not rule then return end
|
||||
|
||||
-- Apply the mapping
|
||||
local new_name = nodedef._mcl_minecarts.base_name..rule[1]
|
||||
if new_name ~= node.name or node.param2 ~= rule[2] then
|
||||
print("swapping "..node.name.." for "..new_name..","..tostring(rule[2]).." at "..tostring(pos))
|
||||
node.name = new_name
|
||||
node.param2 = rule[2]
|
||||
minetest.swap_node(pos, node)
|
||||
end
|
||||
|
||||
if rule.after then
|
||||
rule.after(rule, pos, connections)
|
||||
end
|
||||
end
|
||||
mod.update_rail_connections = update_rail_connections
|
||||
|
||||
local function rail_dir_straight(pos, dir, node)
|
||||
if node.param2 == 0 or node.param2 == 2 then
|
||||
if vector.equals(dir, north) then
|
||||
return north
|
||||
else
|
||||
return south
|
||||
end
|
||||
else
|
||||
if vector.equals(dir,east) then
|
||||
return east
|
||||
else
|
||||
return west
|
||||
end
|
||||
end
|
||||
end
|
||||
local function rail_dir_curve(pos, dir, node)
|
||||
if node.param2 == 0 then
|
||||
-- South and East
|
||||
if vector.equals(dir, south) then return south end
|
||||
if vector.equals(dir, north) then return east end
|
||||
if vector.equals(dir, west) then return south end
|
||||
if vector.equals(dir, east) then return east end
|
||||
elseif node.param2 == 1 then
|
||||
-- South and West
|
||||
if vector.equals(dir, south) then return south end
|
||||
if vector.equals(dir, north) then return west end
|
||||
if vector.equals(dir, west) then return west end
|
||||
if vector.equals(dir, east) then return south end
|
||||
elseif node.param2 == 2 then
|
||||
-- North and West
|
||||
if vector.equals(dir, south) then return west end
|
||||
if vector.equals(dir, north) then return north end
|
||||
if vector.equals(dir, west) then return west end
|
||||
if vector.equals(dir, east) then return north end
|
||||
elseif node.param2 == 3 then
|
||||
-- North and East
|
||||
if vector.equals(dir, south) then return east end
|
||||
if vector.equals(dir, north) then return north end
|
||||
if vector.equals(dir, west) then return north end
|
||||
if vector.equals(dir, east) then return east end
|
||||
end
|
||||
end
|
||||
|
||||
local function rail_dir_cross(pos, dir, node)
|
||||
-- Always continue in the same direction. No direction changes allowed
|
||||
return dir
|
||||
end
|
||||
-- Now get the translator after we have finished using S for other things
|
||||
local S = minetest.get_translator(modname)
|
||||
local BASE_DEF = {
|
||||
@ -119,12 +201,18 @@ local function register_curves_rail(base_name, tiles, def)
|
||||
-- Register the base node
|
||||
mod.register_rail(base_name, table_merge(table.copy(base_def),{
|
||||
tiles = { tiles[1] },
|
||||
_mcl_minecarts = {
|
||||
get_next_dir = rail_dir_straight
|
||||
}
|
||||
}))
|
||||
BASE_DEF.craft = nil
|
||||
|
||||
-- Corner variants
|
||||
mod.register_rail(base_name.."_corner", table_merge(table.copy(base_def),{
|
||||
tiles = { tiles[2] },
|
||||
_mcl_minecarts = {
|
||||
get_next_dir = rail_dir_curve,
|
||||
},
|
||||
groups = {
|
||||
not_in_creative_inventory = 1,
|
||||
},
|
||||
@ -163,18 +251,19 @@ local function register_curves_rail(base_name, tiles, def)
|
||||
}))
|
||||
mod.register_rail_sloped(base_name.."_sloped", table_merge(table.copy(base_def),{
|
||||
description = S("Sloped Rail"), -- Temporary name to make debugging easier
|
||||
_mcl_minecarts = {
|
||||
get_next_dir = rail_dir_cross,
|
||||
},
|
||||
tiles = { tiles[1] },
|
||||
}))
|
||||
|
||||
-- Cross variant
|
||||
--[[
|
||||
mod.register_rail(base_name.."_cross", table_merge(table.copy(base_def),{
|
||||
tiles = { tiles[4] },
|
||||
tiles = { tiles[5] },
|
||||
groups = {
|
||||
not_in_creative_inventory = 1,
|
||||
},
|
||||
}))
|
||||
]]
|
||||
end
|
||||
mod.register_curves_rail = register_curves_rail
|
||||
register_curves_rail("mcl_minecarts:rail_v2", {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user