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Diffstat (limited to 'advtrains/tracks.lua')
| -rw-r--r-- | advtrains/tracks.lua | 751 |
1 files changed, 751 insertions, 0 deletions
diff --git a/advtrains/tracks.lua b/advtrains/tracks.lua new file mode 100644 index 0000000..33a7999 --- /dev/null +++ b/advtrains/tracks.lua @@ -0,0 +1,751 @@ +--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 = "cr", + switchmc = "on", + switchst = "st", + switchprefix = "swl", + }, + swlcr={ + conns = conns3(0,7,8), + desc = "left switch (curve)", + trackworker = "swrcr", + switchalt = "st", + switchmc = "off", + switchst = "cr", + switchprefix = "swl", + }, + swrst={ + conns = conns3(0,8,9), + desc = "right switch (straight)", + trackworker = "st", + switchalt = "cr", + switchmc = "on", + switchst = "st", + switchprefix = "swr", + }, + swrcr={ + conns = conns3(0,9,8), + desc = "right switch (curve)", + trackworker = "st", + switchalt = "st", + switchmc = "off", + switchst = "cr", + switchprefix = "swr", + }, + }, + regtp=true, + tpdefault="st", + trackworker={ + ["swrcr"]="st", + ["swrst"]="st", + ["cr"]="swlst", + ["swlcr"]="swrcr", + ["swlst"]="swrst", + }, + rotation={"", "_30", "_45", "_60"}, +} +advtrains.ap.t_yturnout={ + regstep=1, + variant={ + l={ + conns = conns3(0,7,9), + desc = "Y-turnout (left)", + switchalt = "r", + switchmc = "off", + switchst = "l", + switchprefix = "", + }, + r={ + conns = conns3(0,9,7), + desc = "Y-turnout (right)", + switchalt = "l", + switchmc = "on", + switchst = "r", + switchprefix = "", + } + }, + regtp=true, + tpdefault="l", + rotation={"", "_30", "_45", "_60"}, +} +advtrains.ap.t_s3way={ + regstep=1, + variant={ + l={ + conns = { {c=0}, {c=7}, {c=8}, {c=9}, {c=0} }, + desc = "3-way turnout (left)", + switchalt = "s", + switchst="l", + switchprefix = "", + }, + s={ + conns = { {c=0}, {c=8}, {c=7}, {c=9}, {c=0} }, + desc = "3-way turnout (straight)", + switchalt ="r", + switchst = "s", + switchprefix = "", + }, + r={ + conns = { {c=0}, {c=9}, {c=8}, {c=7}, {c=0} }, + desc = "3-way turnout (right)", + switchalt = "l", + switchst="r", + switchprefix = "", + } + }, + regtp=true, + tpdefault="l", + 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 = "cr", + switchmc = "on", + switchst = "st", + }, + swlcr={ + conns = conns3(0,6,8), + desc = "left switch (curve)", + trackworker = "swrcr", + switchalt = "st", + switchmc = "off", + switchst = "cr", + }, + swrst={ + conns = conns3(0,8,10), + desc = "right switch (straight)", + trackworker = "st", + switchalt = "cr", + switchmc = "on", + switchst = "st", + }, + swrcr={ + conns = conns3(0,10,8), + desc = "right switch (curve)", + trackworker = "st", + switchalt = "st", + 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_perpcrossing={ + regstep = 1, + variant={ + st={ + conns = { {c=0}, {c=8}, {c=4}, {c=12} }, + desc = "perpendicular crossing", + tpdouble = true, + tpsingle = true, + trackworker = "st", + }, + }, + regtp=true, + tpdefault="st", + rotation={"", "_30", "_45", "_60"}, +} +advtrains.ap.t_90plusx_crossing={ + regstep = 1, + variant={ + ["30l"]={ + conns = { {c=0}, {c=8}, {c=1}, {c=9} }, + desc = "30/90 degree crossing (left)", + tpdouble = true, + tpsingle = true, + trackworker = "45l" + }, + ["45l"]={ + conns = { {c=0}, {c=8}, {c=2}, {c=10} }, + desc = "45/90 degree crossing (left)", + tpdouble = true, + tpsingle = true, + trackworker = "60l", + }, + ["60l"]={ + conns = { {c=0}, {c=8}, {c=3}, {c=11}}, + desc = "60/90 degree crossing (left)", + tpdouble = true, + tpsingle = true, + trackworker = "60r", + }, + ["60r"]={ + conns = { {c=0}, {c=8}, {c=5}, {c=13} }, + desc = "60/90 degree crossing (right)", + tpdouble = true, + tpsingle = true, + trackworker = "45r" + }, + ["45r"]={ + conns = { {c=0}, {c=8}, {c=6}, {c=14} }, + desc = "45/90 degree crossing (right)", + tpdouble = true, + tpsingle = true, + trackworker = "30r", + }, + ["30r"]={ + conns = { {c=0}, {c=8}, {c=7}, {c=15}}, + desc = "30/90 degree crossing (right)", + tpdouble = true, + tpsingle = true, + trackworker = "30l", + }, + }, + regtp=true, + tpdefault="30l", + rotation={""}, + trackworker = { + ["30l"] = "45l", + ["45l"] = "60l", + ["60l"] = "60r", + ["60r"] = "45r", + ["45r"] = "30r", + ["30r"] = "30l", + } +} + +advtrains.ap.t_diagonalcrossing = { + regstep=1, + variant={ + ["30l45r"]={ + conns = {{c=1}, {c=9}, {c=6}, {c=14}}, + desc = "30left-45right diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="60l30l", + }, + ["60l30l"]={ + conns = {{c=3}, {c=11}, {c=1}, {c=9}}, + desc = "30left-60right diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="60l45r" + }, + ["60l45r"]={ + conns = {{c=3}, {c=11}, {c=6}, {c=14}}, + desc = "60left-45right diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="60l60r" + }, + ["60l60r"]={ + conns = {{c=3}, {c=11}, {c=5}, {c=13}}, + desc = "60left-60right diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="60r45l", + }, + --If 60l60r had a mirror image, it would be here, but it's symmetric. + -- 60l60r is also equivalent to 30l30r but rotated 90 degrees. + ["60r45l"]={ + conns = {{c=5}, {c=13}, {c=2}, {c=10}}, + desc = "60right-45left diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="60r30r", + }, + ["60r30r"]={ + conns = {{c=5}, {c=13}, {c=7}, {c=15}}, + desc = "60right-30right diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="30r45l", + }, + ["30r45l"]={ + conns = {{c=7}, {c=15}, {c=2}, {c=10}}, + desc = "30right-45left diagonal crossing", + tpdouble=true, + tpsingle=true, + trackworker="30l45r", + }, + + }, + regtp=true, + tpdefault="30l45r", + rotation={""}, + trackworker = { + ["30l45r"] = "60l30l", + ["60l30l"] = "60l45r", + ["60l45r"] = "60l60r", + ["60l60r"] = "60r45l", + ["60r45l"] = "60r30r", + ["60r30r"] = "30r45l", + ["30r45l"] = "30l45r", + } +} + +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 +]] + +-- Notify the user if digging the rail is not allowed +local function can_dig_callback(pos, player) + local ok, reason = advtrains.can_dig_or_modify_track(pos) + if not ok and player then + minetest.chat_send_player(player:get_player_name(), attrans("This track can not be removed!") .. " " .. reason) + end + return ok +end + +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, def) + 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 = advtrains.IGNORE_WORLD and 0 or 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 = can_dig_callback, + 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) + + local ndef_avt_table + + if var.switchalt and var.switchst then + local switchfunc=function(pos, node, newstate) + newstate = newstate or var.switchalt -- support for 3 (or more) state switches + -- this code is only called from the internal setstate function, which + -- ensures that it is safe to switch the turnout + if newstate~=var.switchst then + advtrains.ndb.swap_node(pos, {name=def.nodename_prefix.."_"..(var.switchprefix or "")..newstate..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 + advtrains.setstate(pos, newstate, node) + advtrains.log("Switch", player:get_player_name(), pos) + end + end + if var.switchmc then + ndef.mesecons = {effector = { + ["action_"..var.switchmc] = function(pos, node) + advtrains.setstate(pos, nil, node) + end, + rules=advtrains.meseconrules + }} + end + ndef_avt_table = { + 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) + + -- insert getstate/setstate functions after merging the additional definitions + if ndef_avt_table then + ndef.advtrains = advtrains.merge_tables(ndef.advtrains or {}, ndef_avt_table) + end + + 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 + +-- Function called when a track is about to be dug or modified by the trackworker +-- Returns either true (ok) or false,"translated string describing reason why it isn't allowed" +function advtrains.can_dig_or_modify_track(pos) + if advtrains.get_train_at_pos(pos) then + return false, attrans("Position is occupied by a train.") + end + -- interlocking: tcb, signal IP a.s.o. + if advtrains.interlocking then + -- TCB? + if advtrains.interlocking.db.get_tcb(pos) then + return false, attrans("There's a Track Circuit Break here.") + end + -- signal ip? + if advtrains.interlocking.db.is_ip_at(pos, true) then -- is_ip_at with purge parameter + return false, attrans("There's a Signal Influence Point here.") + end + end + return true +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 not advtrains.check_track_protection(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 +}]] + + + + + + + + + |