Tag strings for train_Track - advtrains.git - Advtrains mod for minetest.

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author	orwell <orwell@bleipb.de>	2025-06-11 21:13:37 +0200
committer	orwell <orwell@bleipb.de>	2025-06-11 21:13:37 +0200
commit	4a25874acfd84ef8ad02de17b80b65700d366117 (patch)
tree	63f2215244850fcad7831deb66fb20b9021f5b38 /advtrains_interlocking/train_sections.lua
parent	2e123814677d47f66fb989df6ef3cd666eb690f5 (diff)
download	advtrains-4a25874acfd84ef8ad02de17b80b65700d366117.tar.gz advtrains-4a25874acfd84ef8ad02de17b80b65700d366117.tar.bz2 advtrains-4a25874acfd84ef8ad02de17b80b65700d366117.zip

Tag strings for train_Track

Diffstat (limited to 'advtrains_interlocking/train_sections.lua')

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--couple.lua --defines couple entities. --advtrains:discouple --set into existing trains to split them when punched. --they are attached to the wagons. --[[fields wagon wagons keep their couple entity minetest-internal id inside the field discouple_id. if it refers to nowhere, they will spawn a new one if player is near ]] local couple_max_dist=3 minetest.register_entity("advtrains:discouple", { visual="sprite", textures = {"advtrains_discouple.png"}, collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5}, visual_size = {x=1, y=1}, initial_sprite_basepos = {x=0, y=0}, is_discouple=true, on_activate=function(self, staticdata) if staticdata=="DISCOUPLE" then --couple entities have no right to exist further... atprint("Discouple loaded from staticdata, destroying") self.object:remove() return end self.object:set_armor_groups({immortal=1}) end, get_staticdata=function() return "DISCOUPLE" end, on_punch=function(self, player) --only if player owns at least one wagon next to this local own=player:get_player_name() if self.wagon.owner and self.wagon.owner==own and not self.wagon.lock_couples then local train=advtrains.trains[self.wagon.train_id] local nextwgn_id=train.trainparts[self.wagon.pos_in_trainparts-1] for aoi, le in pairs(minetest.luaentities) do if le and le.is_wagon then if le.unique_id==nextwgn_id then if le.owner and le.owner~=own then minetest.chat_send_player(own, attrans("You need to own at least one neighboring wagon to destroy this couple.")) return end end end end atprint("Discouple punched. Splitting train", self.wagon.train_id) advtrains.split_train_at_wagon(self.wagon)--found in trainlogic.lua self.object:remove() elseif self.wagon.lock_couples then minetest.chat_send_player(own, "Couples of one of the wagons are locked, can't discouple!") else minetest.chat_send_player(own, attrans("You need to own at least one neighboring wagon to destroy this couple.")) end end, on_step=function(self, dtime) local t=os.clock() if not self.wagon then self.object:remove() atprint("Discouple: no wagon, destroying") return end --getyaw seems to be a reliable method to check if an object is loaded...if it returns nil, it is not. if not self.wagon.object:getyaw() then atprint("Discouple: wagon no longer loaded, destroying") self.object:remove() return end local velocityvec=self.wagon.object:getvelocity() self.updatepct_timer=(self.updatepct_timer or 0)-dtime if not self.old_velocity_vector or not vector.equals(velocityvec, self.old_velocity_vector) or self.updatepct_timer<=0 then--only send update packet if something changed local flipsign=self.wagon.wagon_flipped and -1 or 1 self.object:setpos(vector.add(self.wagon.object:getpos(), {y=0, x=-math.sin(self.wagon.object:getyaw())*self.wagon.wagon_span*flipsign, z=math.cos(self.wagon.object:getyaw())*self.wagon.wagon_span*flipsign})) self.object:setvelocity(velocityvec) self.updatepct_timer=2 end atprintbm("discouple_step", t) end, }) --advtrains:couple --when two trains overlap with their end-positions, this entity will be spawned and both trains set its id into appropiate fields for them to know when to free them again. The entity will destroy automatically when it recognizes that any of the trains left the common position. --[[fields train_id_1 train_id_2 train1_is_backpos train2_is_backpos ]] minetest.register_entity("advtrains:couple", { visual="sprite", textures = {"advtrains_couple.png"}, collisionbox = {-0.5,-0.5,-0.5, 0.5,0.5,0.5}, visual_size = {x=1, y=1}, initial_sprite_basepos = {x=0, y=0}, is_couple=true, on_activate=function(self, staticdata) if staticdata=="COUPLE" then --couple entities have no right to exist further... atprint("Couple loaded from staticdata, destroying") self.object:remove() return end end, get_staticdata=function(self) return "COUPLE" end, on_rightclick=function(self, clicker) if not self.train_id_1 or not self.train_id_2 then return end local id1, id2=self.train_id_1, self.train_id_2 if self.train1_is_backpos and not self.train2_is_backpos then advtrains.do_connect_trains(id1, id2, clicker) --case 2 (second train is front) elseif self.train2_is_backpos and not self.train1_is_backpos then advtrains.do_connect_trains(id2, id1, clicker) --case 3 elseif self.train1_is_backpos and self.train2_is_backpos then advtrains.invert_train(id2) advtrains.do_connect_trains(id1, id2, clicker) --case 4 elseif not self.train1_is_backpos and not self.train2_is_backpos then advtrains.invert_train(id1) advtrains.do_connect_trains(id1, id2, clicker) end atprint("Coupled trains", id1, id2) self.object:remove() end, on_step=function(self, dtime) local t=os.clock() if not self.train_id_1 or not self.train_id_2 then atprint("Couple: train ids not set!") self.object:remove() return end local train1=advtrains.trains[self.train_id_1] local train2=advtrains.trains[self.train_id_2] if not train1 or not train2 then atprint("Couple: trains missing, destroying") self.object:remove() return end if not train1.path or not train2.path or not train1.index or not train2.index or not train1.end_index or not train2.end_index then atprint("Couple: paths or end_index missing. Might happen when paths got cleared") return end local tp1 if not self.train1_is_backpos then tp1=advtrains.get_real_index_position(train1.path, train1.index) else tp1=advtrains.get_real_index_position(train1.path, train1.end_index) end local tp2 if not self.train2_is_backpos then tp2=advtrains.get_real_index_position(train2.path, train2.index) else tp2=advtrains.get_real_index_position(train2.path, train2.end_index) end if not tp1 or not tp2 or not (vector.distance(tp1,tp2)<couple_max_dist) then atprint("Couple: train end positions too distanced, destroying") self.object:remove() return else local pos_median=advtrains.pos_median(tp1, tp2) if not vector.equals(pos_median, self.object:getpos()) then self.object:setpos(pos_median) end end atprintbm("couple step", t) end, })


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