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|
--advtrains by orwell96, see readme.txt
--dev-time settings:
--EDIT HERE
--If the old non-model rails on straight tracks should be replaced by the new...
--false: no
--true: yes
advtrains.register_replacement_lbms=false
--[[TracksDefinition
nodename_prefix
texture_prefix
description
common={}
straight={}
straight45={}
curve={}
curve45={}
lswitchst={}
lswitchst45={}
rswitchst={}
rswitchst45={}
lswitchcr={}
lswitchcr45={}
rswitchcr={}
rswitchcr45={}
vert1={
--you'll probably want to override mesh here
}
vert2={
--you'll probably want to override mesh here
}
]]--
advtrains.all_tracktypes={}
--definition preparation
local function conns(c1, c2, r1, r2) return {{c=c1, y=r1}, {c=c2, y=r2}} end
local function conns3(c1, c2, c3, r1, r2, r3) return {{c=c1, y=r1}, {c=c2, y=r2}, {c=c3, y=r3}} end
advtrains.ap={}
advtrains.ap.t_30deg_flat={
regstep=1,
variant={
st={
conns = conns(0,8),
desc = "straight",
tpdouble = true,
tpsingle = true,
trackworker = "cr",
},
cr={
conns = conns(0,7),
desc = "curve",
tpdouble = true,
trackworker = "swlst",
},
swlst={
conns = conns3(0,8,7),
desc = "left switch (straight)",
trackworker = "swrst",
switchalt = "swlcr",
switchmc = "on",
switchst = "st",
},
swlcr={
conns = conns3(0,7,8),
desc = "left switch (curve)",
trackworker = "swrcr",
switchalt = "swlst",
switchmc = "off",
switchst = "cr",
},
swrst={
conns = conns3(0,8,9),
desc = "right switch (straight)",
trackworker = "st",
switchalt = "swrcr",
switchmc = "on",
switchst = "st",
},
swrcr={
conns = conns3(0,9,8),
desc = "right switch (curve)",
trackworker = "st",
switchalt = "swrst",
switchmc = "off",
switchst = "cr",
},
},
regtp=true,
tpdefault="st",
trackworker={
["swrcr"]="st",
["swrst"]="st",
["cr"]="swlst",
["swlcr"]="swrcr",
["swlst"]="swrst",
},
rotation={"", "_30", "_45", "_60"},
}
advtrains.ap.t_30deg_slope={
regstep=1,
variant={
vst1={conns = conns(8,0,0,0.5), rail_y = 0.25, desc = "steep uphill 1/2", slope=true},
vst2={conns = conns(8,0,0.5,1), rail_y = 0.75, desc = "steep uphill 2/2", slope=true},
vst31={conns = conns(8,0,0,0.33), rail_y = 0.16, desc = "uphill 1/3", slope=true},
vst32={conns = conns(8,0,0.33,0.66), rail_y = 0.5, desc = "uphill 2/3", slope=true},
vst33={conns = conns(8,0,0.66,1), rail_y = 0.83, desc = "uphill 3/3", slope=true},
},
regsp=true,
slopeplacer={
[2]={"vst1", "vst2"},
[3]={"vst31", "vst32", "vst33"},
max=3,--highest entry
},
slopeplacer_45={
[2]={"vst1_45", "vst2_45"},
max=2,
},
rotation={"", "_30", "_45", "_60"},
trackworker={},
increativeinv={},
}
advtrains.ap.t_30deg_straightonly={
regstep=1,
variant={
st={
conns = conns(0,8),
desc = "straight",
tpdouble = true,
tpsingle = true,
trackworker = "st",
},
},
regtp=true,
tpdefault="st",
rotation={"", "_30", "_45", "_60"},
}
advtrains.ap.t_30deg_straightonly_noplacer={
regstep=1,
variant={
st={
conns = conns(0,8),
desc = "straight",
tpdouble = true,
tpsingle = true,
trackworker = "st",
},
},
tpdefault="st",
rotation={"", "_30", "_45", "_60"},
}
advtrains.ap.t_45deg={
regstep=2,
variant={
st={
conns = conns(0,8),
desc = "straight",
tpdouble = true,
tpsingle = true,
trackworker = "cr",
},
cr={
conns = conns(0,6),
desc = "curve",
tpdouble = true,
trackworker = "swlst",
},
swlst={
conns = conns3(0,8,6),
desc = "left switch (straight)",
trackworker = "swrst",
switchalt = "swlcr",
switchmc = "on",
switchst = "st",
},
swlcr={
conns = conns3(0,6,8),
desc = "left switch (curve)",
trackworker = "swrcr",
switchalt = "swlst",
switchmc = "off",
switchst = "cr",
},
swrst={
conns = conns3(0,8,10),
desc = "right switch (straight)",
trackworker = "st",
switchalt = "swrcr",
switchmc = "on",
switchst = "st",
},
swrcr={
conns = conns3(0,10,8),
desc = "right switch (curve)",
trackworker = "st",
switchalt = "swrst",
switchmc = "off",
switchst = "cr",
},
},
regtp=true,
tpdefault="st",
trackworker={
["swrcr"]="st",
["swrst"]="st",
["cr"]="swlst",
["swlcr"]="swrcr",
["swlst"]="swrst",
},
rotation={"", "_30", "_45", "_60"},
}
advtrains.trackpresets = advtrains.ap
--definition format: ([] optional)
--[[{
nodename_prefix
texture_prefix
[shared_texture]
models_prefix
models_suffix (with dot)
[shared_model]
formats={
st,cr,swlst,swlcr,swrst,swrcr,vst1,vst2
(each a table with indices 0-3, for if to register a rail with this 'rotation' table entry. nil is assumed as 'all', set {} to not register at all)
}
common={} change something on common rail appearance
}
[18.12.17] Note on new connection system:
In order to support real rail crossing nodes and finally make the trackplacer respect switches, I changed the connection system.
There can be a variable number of connections available. These are specified as tuples {c=<connection>, y=<rely>}
The table "at_conns" consists of {<conn1>, <conn2>...}
the "at_rail_y" property holds the value that was previously called "railheight"
Depending on the number of connections:
2 conns: regular rail
3 conns: switch:
- when train passes in at conn1, will move out of conn2
- when train passes in at conn2 or conn3, will move out of conn1
4 conns: cross (or cross switch, depending on arrangement of conns):
- conn1 <> conn2
- conn3 <> conn4
]]
function advtrains.register_tracks(tracktype, def, preset)
advtrains.trackplacer.register_tracktype(def.nodename_prefix, preset.tpdefault)
if preset.regtp then
advtrains.trackplacer.register_track_placer(def.nodename_prefix, def.texture_prefix, def.description)
end
if preset.regsp then
advtrains.slope.register_placer(def, preset)
end
for suffix, var in pairs(preset.variant) do
for rotid, rotation in ipairs(preset.rotation) do
if not def.formats[suffix] or def.formats[suffix][rotid] then
local img_suffix = suffix..rotation
local ndef = advtrains.merge_tables({
description=def.description.."("..(var.desc or "any")..rotation..")",
drawtype = "mesh",
paramtype="light",
paramtype2="facedir",
walkable = false,
selection_box = {
type = "fixed",
fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
},
mesh = def.shared_model or (def.models_prefix.."_"..img_suffix..def.models_suffix),
tiles = {def.shared_texture or (def.texture_prefix.."_"..img_suffix..".png"), def.second_texture},
groups = {
attached_node=1,
advtrains_track=1,
["advtrains_track_"..tracktype]=1,
save_in_at_nodedb=1,
dig_immediate=2,
not_in_creative_inventory=1,
not_blocking_trains=1,
},
can_dig=function(pos)
return not advtrains.get_train_at_pos(pos)
end,
after_dig_node=function(pos)
advtrains.ndb.update(pos)
end,
after_place_node=function(pos)
advtrains.ndb.update(pos)
end,
at_nnpref = def.nodename_prefix,
at_suffix = suffix,
at_rotation = rotation,
at_rail_y = var.rail_y
}, def.common or {})
if preset.regtp then
ndef.drop = def.nodename_prefix.."_placer"
end
if preset.regsp and var.slope then
ndef.drop = def.nodename_prefix.."_slopeplacer"
end
--connections
ndef.at_conns = advtrains.rotate_conn_by(var.conns, (rotid-1)*preset.regstep)
if var.switchalt and var.switchst then
local switchfunc=function(pos, node, newstate)
if newstate~=var.switchst then
advtrains.ndb.swap_node(pos, {name=def.nodename_prefix.."_"..var.switchalt..rotation, param2=node.param2})
advtrains.invalidate_all_paths(pos)
end
end
ndef.on_rightclick = function(pos, node, player)
if advtrains.check_turnout_signal_protection(pos, player:get_player_name()) then
switchfunc(pos, node)
advtrains.log("Switch", player:get_player_name(), pos)
end
end
if var.switchmc then
ndef.mesecons = {effector = {
["action_"..var.switchmc] = switchfunc,
rules=advtrains.meseconrules
}}
end
ndef.luaautomation = {
getstate = var.switchst,
setstate = switchfunc,
}
end
local adef={}
if def.get_additional_definiton then
adef=def.get_additional_definiton(def, preset, suffix, rotation)
end
ndef = advtrains.merge_tables(ndef, adef)
minetest.register_node(":"..def.nodename_prefix.."_"..suffix..rotation, ndef)
--trackplacer
if preset.regtp then
local tpconns = {conn1=ndef.at_conns[1].c, conn2=ndef.at_conns[2].c}
if var.tpdouble then
advtrains.trackplacer.add_double_conn(def.nodename_prefix, suffix, rotation, tpconns)
end
if var.tpsingle then
advtrains.trackplacer.add_single_conn(def.nodename_prefix, suffix, rotation, tpconns)
end
end
advtrains.trackplacer.add_worked(def.nodename_prefix, suffix, rotation, var.trackworker)
end
end
end
advtrains.all_tracktypes[tracktype]=true
end
function advtrains.is_track_and_drives_on(nodename, drives_on_p)
local drives_on = drives_on_p
if not drives_on then drives_on = advtrains.all_tracktypes end
local hasentry = false
for _,_ in pairs(drives_on) do
hasentry=true
end
if not hasentry then drives_on = advtrains.all_tracktypes end
if not minetest.registered_nodes[nodename] then
return false
end
local nodedef=minetest.registered_nodes[nodename]
for k,v in pairs(drives_on) do
if nodedef.groups["advtrains_track_"..k] then
return true
end
end
return false
end
function advtrains.get_track_connections(name, param2)
local nodedef=minetest.registered_nodes[name]
if not nodedef then atprint(" get_track_connections couldn't find nodedef for nodename "..(name or "nil")) return nil end
local noderot=param2
if not param2 then noderot=0 end
if noderot > 3 then atprint(" get_track_connections: rail has invaild param2 of "..noderot) noderot=0 end
local tracktype
for k,_ in pairs(nodedef.groups) do
local tt=string.match(k, "^advtrains_track_(.+)$")
if tt then
tracktype=tt
end
end
return advtrains.rotate_conn_by(nodedef.at_conns, noderot*AT_CMAX/4), (nodedef.at_rail_y or 0), tracktype
end
--detector code
--holds a table with nodes on which trains are on.
advtrains.detector = {}
advtrains.detector.on_node = {}
--Returns true when position is occupied by a train other than train_id, false when occupied by the same train as train_id and nil in case there's no train at all
function advtrains.detector.occupied(pos, train_id)
local ppos=advtrains.round_vector_floor_y(pos)
local pts=minetest.pos_to_string(ppos)
local s=advtrains.detector.on_node[pts]
if not s then return nil end
if s==train_id then return false end
--in case s is a table, it's always occupied by another train
return true
end
-- If given a train id as second argument, this is considered as 'not there'.
-- Returns the train id of (one of, nondeterministic) the trains at this position
function advtrains.detector.get(pos, train_id)
local ppos=advtrains.round_vector_floor_y(pos)
local pts=minetest.pos_to_string(ppos)
local s=advtrains.detector.on_node[pts]
if not s then return nil end
if type(s)=="table" then
for _,t in ipairs(s) do
if t~=train_id then return t end
end
return nil
end
return s
end
function advtrains.detector.enter_node(pos, train_id)
advtrains.detector.stay_node(pos, train_id)
local ppos=advtrains.round_vector_floor_y(pos)
advtrains.detector.call_enter_callback(ppos, train_id)
end
function advtrains.detector.leave_node(pos, train_id)
local ppos=advtrains.round_vector_floor_y(pos)
local pts=minetest.pos_to_string(ppos)
local s=advtrains.detector.on_node[pts]
if type(s)=="table" then
local i
for j,t in ipairs(s) do
if t==train_id then i=j end
end
if not i then return end
s=table.remove(s,i)
if #s==0 then
s=nil
elseif #s==1 then
s=s[1]
end
advtrains.detector.on_node[pts]=s
else
advtrains.detector.on_node[pts]=nil
end
advtrains.detector.call_leave_callback(ppos, train_id)
end
function advtrains.detector.stay_node(pos, train_id)
local ppos=advtrains.round_vector_floor_y(pos)
local pts=minetest.pos_to_string(ppos)
local s=advtrains.detector.on_node[pts]
if not s then
advtrains.detector.on_node[pts]=train_id
elseif type(s)=="string" then
advtrains.detector.on_node[pts]={s, train_id}
elseif type(s)=="table" then
advtrains.detector.on_node[pts]=table.insert(s, train_id)
end
end
function advtrains.detector.call_enter_callback(pos, train_id)
--atprint("instructed to call enter calback")
local node = advtrains.ndb.get_node(pos) --this spares the check if node is nil, it has a name in any case
local mregnode=minetest.registered_nodes[node.name]
if mregnode and mregnode.advtrains and mregnode.advtrains.on_train_enter then
mregnode.advtrains.on_train_enter(pos, train_id)
end
end
function advtrains.detector.call_leave_callback(pos, train_id)
--atprint("instructed to call leave calback")
local node = advtrains.ndb.get_node(pos) --this spares the check if node is nil, it has a name in any case
local mregnode=minetest.registered_nodes[node.name]
if mregnode and mregnode.advtrains and mregnode.advtrains.on_train_leave then
mregnode.advtrains.on_train_leave(pos, train_id)
end
end
-- slope placer. Defined in register_tracks.
--crafted with rail and gravel
local sl={}
function sl.register_placer(def, preset)
minetest.register_craftitem(":"..def.nodename_prefix.."_slopeplacer",{
description = attrans("@1 Slope", def.description),
inventory_image = def.texture_prefix.."_slopeplacer.png",
wield_image = def.texture_prefix.."_slopeplacer.png",
groups={},
on_place = sl.create_slopeplacer_on_place(def, preset)
})
end
--(itemstack, placer, pointed_thing)
function sl.create_slopeplacer_on_place(def, preset)
return function(istack, player, pt)
if not pt.type=="node" then
minetest.chat_send_player(player:get_player_name(), attrans("Can't place: not pointing at node"))
return istack
end
local pos=pt.above
if not pos then
minetest.chat_send_player(player:get_player_name(), attrans("Can't place: not pointing at node"))
return istack
end
local node=minetest.get_node(pos)
if not minetest.registered_nodes[node.name] or not minetest.registered_nodes[node.name].buildable_to then
minetest.chat_send_player(player:get_player_name(), attrans("Can't place: space occupied!"))
return istack
end
if advtrains.is_protected(pos, player:get_player_name()) then
minetest.record_protection_violation(pos, player:get_player_name())
return istack
end
--determine player orientation (only horizontal component)
--get_look_horizontal may not be available
local yaw=player.get_look_horizontal and player:get_look_horizontal() or (player:get_look_yaw() - math.pi/2)
--rounding unit vectors is a nice way for selecting 1 of 8 directions since sin(30°) is 0.5.
dirvec={x=math.floor(math.sin(-yaw)+0.5), y=0, z=math.floor(math.cos(-yaw)+0.5)}
--translate to direction to look up inside the preset table
local param2, rot45=({
[-1]={
[-1]=2,
[0]=3,
[1]=3,
},
[0]={
[-1]=2,
[1]=0,
},
[1]={
[-1]=1,
[0]=1,
[1]=0,
},
})[dirvec.x][dirvec.z], dirvec.x~=0 and dirvec.z~=0
local lookup=preset.slopeplacer
if rot45 then lookup=preset.slopeplacer_45 end
--go unitvector forward and look how far the next node is
local step=1
while step<=lookup.max do
local node=minetest.get_node(vector.add(pos, dirvec))
--next node solid?
if not minetest.registered_nodes[node.name] or not minetest.registered_nodes[node.name].buildable_to or advtrains.is_protected(pos, player:get_player_name()) then
--do slopes of this distance exist?
if lookup[step] then
if minetest.settings:get_bool("creative_mode") or istack:get_count()>=step then
--start placing
local placenodes=lookup[step]
while step>0 do
minetest.set_node(pos, {name=def.nodename_prefix.."_"..placenodes[step], param2=param2})
if not minetest.settings:get_bool("creative_mode") then
istack:take_item()
end
step=step-1
pos=vector.subtract(pos, dirvec)
end
else
minetest.chat_send_player(player:get_player_name(), attrans("Can't place: Not enough slope items left (@1 required)", step))
end
else
minetest.chat_send_player(player:get_player_name(), attrans("Can't place: There's no slope of length @1",step))
end
return istack
end
step=step+1
pos=vector.add(pos, dirvec)
end
minetest.chat_send_player(player:get_player_name(), attrans("Can't place: no supporting node at upper end."))
return itemstack
end
end
advtrains.slope=sl
--END code, BEGIN definition
--definition format: ([] optional)
--[[{
nodename_prefix
texture_prefix
[shared_texture]
models_prefix
models_suffix (with dot)
[shared_model]
formats={
st,cr,swlst,swlcr,swrst,swrcr,vst1,vst2
(each a table with indices 0-3, for if to register a rail with this 'rotation' table entry. nil is assumed as 'all', set {} to not register at all)
}
common={} change something on common rail appearance
}]]
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