dofile(pipeworks.modpath.."/compat.lua") --and an extra function for getting the right-facing vector local function facedir_to_right_dir(facedir) --find the other directions local backdir = minetest.facedir_to_dir(facedir) local topdir = ({[0]={x=0, y=1, z=0}, {x=0, y=0, z=1}, {x=0, y=0, z=-1}, {x=1, y=0, z=0}, {x=-1, y=0, z=0}, {x=0, y=-1, z=0}})[math.floor(facedir/4)] --return a cross product return {x=topdir.y*backdir.z - backdir.y*topdir.z, y=topdir.z*backdir.x - backdir.z*topdir.x, z=topdir.x*backdir.y - backdir.x*topdir.y} end minetest.register_craftitem("pipeworks:filter", { description = "Filter", stack_max = 99, }) local fakePlayer = { get_player_name = function() return ":pipeworks" end, -- any other player functions called by allow_metadata_inventory_take anywhere... -- perhaps a custom metaclass that errors specially when fakePlayer. is not found? } -- adding two tube functions -- can_remove(pos,node,stack,dir) returns true if an item can be removed from that stack on that node -- remove_items(pos,node,stack,dir,count) removes count items and returns them -- both optional w/ sensible defaults and fallback to normal allow_* function -- XXX: possibly change insert_object to insert_item -- sname = the current name to allow for, or nil if it allows anything function grabAndFire(frominv,frominvname,frompos,fromnode,sname,tube,idef,dir,all) for spos,stack in ipairs(frominv:get_list(frominvname)) do if ( sname == nil and stack:get_name() ~= "") or stack:get_name()==sname then local doRemove = true if tube.can_remove then doRemove = tube.can_remove(frompos, fromnode, stack, dir) elseif idef.allow_metadata_inventory_take then doRemove = idef.allow_metadata_inventory_take(frompos,"main",spos, stack, fakePlayer) end -- stupid lack of continue statements grumble if doRemove then local item local count if all then count = stack:get_count() else count = 1 end if tube.remove_items then -- it could be the entire stack... item=tube.remove_items(frompos,fromnode,stack,dir,count) else item=stack:take_item(count) frominv:set_stack(frominvname,spos,stack) if idef.on_metadata_inventory_take then idef.on_metadata_inventory_take(frompos, "main", spos, item, fakePlayer) end end item1=tube_item(frompos,item) item1:get_luaentity().start_pos = frompos item1:setvelocity(dir) item1:setacceleration({x=0, y=0, z=0}) return -- only fire one item, please end end end end minetest.register_node("pipeworks:filter", { description = "Filter", tiles = {"pipeworks_filter_top.png", "pipeworks_filter_top.png", "pipeworks_filter_output.png", "pipeworks_filter_input.png", "pipeworks_filter_side.png", "pipeworks_filter_top.png"}, paramtype2 = "facedir", groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,tubedevice=1,mesecon=2}, legacy_facedir_simple = true, sounds = default.node_sound_wood_defaults(), on_construct = function(pos) local meta = minetest.get_meta(pos) meta:set_string("formspec", "invsize[8,6.5;]".. "list[current_name;main;0,0;8,2;]".. "list[current_player;main;0,2.5;8,4;]") meta:set_string("infotext", "Filter") local inv = meta:get_inventory() inv:set_size("main", 8*4) end, can_dig = function(pos,player) local meta = minetest.get_meta(pos); local inv = meta:get_inventory() return inv:is_empty("main") end, after_place_node = function(pos) pipeworks.scan_for_tube_objects(pos) end, after_dig_node = function(pos) pipeworks.scan_for_tube_objects(pos) end, mesecons={effector={action_on=function(pos,node) minetest.registered_nodes[node.name].on_punch(pos,node,nil) end}}, tube={connect_sides={right=1}}, on_punch = function (pos, node, puncher) local meta = minetest.get_meta(pos); local inv = meta:get_inventory() local dir = facedir_to_right_dir(node.param2) local frompos = {x=pos.x - dir.x, y=pos.y - dir.y, z=pos.z - dir.z} local fromnode=minetest.get_node(frompos) if not fromnode then return end local frominv local idef = minetest.registered_nodes[fromnode.name] -- assert(idef) local tube = idef.tube if not (tube and tube.input_inventory) then return end local frommeta=minetest.get_meta(frompos) local frominvname=tube.input_inventory local frominv=frommeta:get_inventory() for _,filter in ipairs(inv:get_list("main")) do local sname=filter:get_name() if sname ~="" then -- XXX: that's a lot of parameters grabAndFire(frominv,frominvname,frompos,fromnode,sname,tube,idef,dir) end end if inv:is_empty("main") then grabAndFire(frominv,frominvname,frompos,fromnode,nil,tube,idef,dir) end end, }) minetest.register_craftitem("pipeworks:mese_filter", { description = "Mese filter", stack_max = 99, }) minetest.register_node("pipeworks:mese_filter", { description = "Mese filter", tiles = {"pipeworks_mese_filter_top.png", "pipeworks_mese_filter_top.png", "pipeworks_mese_filter_output.png", "pipeworks_mese_filter_input.png", "pipeworks_mese_filter_side.png", "pipeworks_mese_filter_top.png"}, paramtype2 = "facedir", groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2,tubedevice=1,mesecon=2}, legacy_facedir_simple = true, sounds = default.node_sound_wood_defaults(), on_construct = function(pos) local meta = minetest.get_meta(pos) meta:set_string("formspec", "invsize[8,6.5;]".. "list[current_name;main;0,0;8,2;]".. "list[current_player;main;0,2.5;8,4;]") meta:set_string("infotext", "Mese filter") local inv = meta:get_inventory() inv:set_size("main", 8*4) end, can_dig = function(pos,player) local meta = minetest.get_meta(pos); local inv = meta:get_inventory() return inv:is_empty("main") end, after_place_node = function(pos) pipeworks.scan_for_tube_objects(pos) end, after_dig_node = function(pos) pipeworks.scan_for_tube_objects(pos) end, mesecons={effector={action_on=function(pos,node) minetest.registered_nodes[node.name].on_punch(pos,node,nil) end}}, tube={connect_sides={right=1}}, on_punch = function (pos, node, puncher) local meta = minetest.get_meta(pos); local inv = meta:get_inventory() local dir = facedir_to_right_dir(node.param2) local frompos = {x=pos.x - dir.x, y=pos.y - dir.y, z=pos.z - dir.z} local fromnode=minetest.get_node(frompos) local frominv local idef = minetest.registered_nodes[fromnode.name] -- assert(idef) local tube = idef.tube if not (tube and tube.input_inventory) then return end local frommeta=minetest.get_meta(frompos) local frominvname=minetest.registered_nodes[fromnode.name].tube.input_inventory local frominv=frommeta:get_inventory() for _,filter in ipairs(inv:get_list("main")) do local sname=filter:get_name() if sname ~="" then grabAndFire(frominv,frominvname,frompos,fromnode,sname,tube,idef,dir,true) end end if inv:is_empty("main") then grabAndFire(frominv,frominvname,frompos,fromnode,sname,tube,idef,dir,true) end end, }) function tube_item(pos, item) -- Take item in any format local stack = ItemStack(item) local obj = minetest.add_entity(pos, "pipeworks:tubed_item") obj:get_luaentity():set_item(stack:to_string()) return obj end local function roundpos(pos) return {x=math.floor(pos.x+0.5),y=math.floor(pos.y+0.5),z=math.floor(pos.z+0.5)} end minetest.register_entity("pipeworks:tubed_item", { initial_properties = { hp_max = 1, physical = false, -- collisionbox = {0,0,0,0,0,0}, collisionbox = {0.1,0.1,0.1,0.1,0.1,0.1}, visual = "sprite", visual_size = {x=0.5, y=0.5}, textures = {""}, spritediv = {x=1, y=1}, initial_sprite_basepos = {x=0, y=0}, is_visible = false, start_pos={}, route={} }, itemstring = '', physical_state = false, set_item = function(self, itemstring) self.itemstring = itemstring local stack = ItemStack(itemstring) local itemtable = stack:to_table() local itemname = nil if itemtable then itemname = stack:to_table().name end local item_texture = nil local item_type = "" if minetest.registered_items[itemname] then item_texture = minetest.registered_items[itemname].inventory_image item_type = minetest.registered_items[itemname].type end prop = { is_visible = true, visual = "sprite", textures = {"unknown_item.png"} } if item_texture and item_texture ~= "" then prop.visual = "sprite" prop.textures = {item_texture} prop.visual_size = {x=0.3, y=0.3} else prop.visual = "wielditem" prop.textures = {itemname} prop.visual_size = {x=0.15, y=0.15} end self.object:set_properties(prop) end, get_staticdata = function(self) if self.start_pos==nil then return end local velocity=self.object:getvelocity() --self.object:setvelocity({x=0,y=0,z=0}) self.object:setpos(self.start_pos) return minetest.serialize({ itemstring=self.itemstring, velocity=velocity, start_pos=self.start_pos }) end, on_activate = function(self, staticdata) if staticdata=="" or staticdata==nil then return end local item = minetest.deserialize(staticdata) local stack = ItemStack(item.itemstring) local itemtable = stack:to_table() local itemname = nil if itemtable then itemname = stack:to_table().name end if itemname then self.start_pos=item.start_pos self.object:setvelocity(item.velocity) self.object:setacceleration({x=0, y=0, z=0}) self.object:setpos(item.start_pos) end self:set_item(item.itemstring) end, on_step = function(self, dtime) if self.start_pos==nil then local pos = self.object:getpos() self.start_pos=roundpos(pos) end local pos = self.object:getpos() local node = minetest.get_node(pos) local meta = minetest.get_meta(pos) tubelike=meta:get_int("tubelike") local stack = ItemStack(self.itemstring) local drop_pos=nil local velocity=self.object:getvelocity() if velocity==nil then return end local velocitycopy={x=velocity.x,y=velocity.y,z=velocity.z} local moved=false local speed=math.abs(velocity.x+velocity.y+velocity.z) local vel={x=velocity.x/speed,y=velocity.y/speed,z=velocity.z/speed, speed=speed} if math.abs(vel.x)==1 then local next_node=math.abs(pos.x-self.start_pos.x) if next_node >= 1 then self.start_pos.x=self.start_pos.x+vel.x moved=true end elseif math.abs(vel.y)==1 then local next_node=math.abs(pos.y-self.start_pos.y) if next_node >= 1 then self.start_pos.y=self.start_pos.y+vel.y moved=true end elseif math.abs(vel.z)==1 then local next_node=math.abs(pos.z-self.start_pos.z) if next_node >= 1 then self.start_pos.z=self.start_pos.z+vel.z moved=true end end local sposcopy={x=self.start_pos.x,y=self.start_pos.y,z=self.start_pos.z} node = minetest.get_node(self.start_pos) if moved and minetest.get_item_group(node.name,"tubedevice_receiver")==1 then if minetest.registered_nodes[node.name].tube and minetest.registered_nodes[node.name].tube.insert_object then leftover = minetest.registered_nodes[node.name].tube.insert_object(self.start_pos,node,stack,vel) else leftover = stack end --drop_pos=minetest.find_node_near(self.start_pos,1,"air") --if drop_pos and not leftover:is_empty() then minetest.item_drop(leftover,"",drop_pos) end --self.object:remove() if leftover:is_empty() then self.object:remove() return end velocity.x=-velocity.x velocity.y=-velocity.y velocity.z=-velocity.z self.object:setvelocity(velocity) self:set_item(leftover:to_string()) return end if moved then if go_next (self.start_pos, velocity, stack)==0 then drop_pos=minetest.find_node_near({x=self.start_pos.x+velocity.x,y=self.start_pos.y+velocity.y,z=self.start_pos.z+velocity.z}, 1, "air") if drop_pos then minetest.item_drop(stack, "", drop_pos) self.object:remove() end end end if velocity.x~=velocitycopy.x or velocity.y~=velocitycopy.y or velocity.z~=velocitycopy.z or self.start_pos.x~=sposcopy.x or self.start_pos.y~=sposcopy.y or self.start_pos.z~=sposcopy.z then self.object:setpos(self.start_pos) self.object:setvelocity(velocity) end end }) local function addVect(pos,vect) return {x=pos.x+vect.x,y=pos.y+vect.y,z=pos.z+vect.z} end adjlist={{x=0,y=0,z=1},{x=0,y=0,z=-1},{x=0,y=1,z=0},{x=0,y=-1,z=0},{x=1,y=0,z=0},{x=-1,y=0,z=0}} function notvel(tbl,vel) local tbl2={} for _,val in ipairs(tbl) do if val.x~=-vel.x or val.y~=-vel.y or val.z~=-vel.z then table.insert(tbl2,val) end end return tbl2 end function go_next(pos,velocity,stack) local chests={} local tubes={} local cnode=minetest.get_node(pos) local cmeta=minetest.get_meta(pos) local node local meta local tubelike local tube_receiver local len=1 local n local can_go local speed=math.abs(velocity.x+velocity.y+velocity.z) local vel={x=velocity.x/speed,y=velocity.y/speed,z=velocity.z/speed,speed=speed} if speed>=4.1 then speed=4 elseif speed>=1.1 then speed=speed-0.1 else speed=1 end vel.speed=speed if minetest.registered_nodes[cnode.name] and minetest.registered_nodes[cnode.name].tube and minetest.registered_nodes[cnode.name].tube.can_go then can_go=minetest.registered_nodes[cnode.name].tube.can_go(pos,node,vel,stack) else can_go=notvel(adjlist,vel) end for _,vect in ipairs(can_go) do npos=addVect(pos,vect) node=minetest.get_node(npos) tube_receiver=minetest.get_item_group(node.name,"tubedevice_receiver") meta=minetest.get_meta(npos) tubelike=meta:get_int("tubelike") if tube_receiver==1 then if minetest.registered_nodes[node.name].tube and minetest.registered_nodes[node.name].tube.can_insert and minetest.registered_nodes[node.name].tube.can_insert(npos,node,stack,vect) then local i=1 repeat if chests[i]==nil then break end i=i+1 until false chests[i]={} chests[i].pos=npos chests[i].vect=vect end elseif tubelike==1 then local i=1 repeat if tubes[i]==nil then break end i=i+1 until false tubes[i]={} tubes[i].pos=npos tubes[i].vect=vect end end if chests[1]==nil then--no chests found if tubes[1]==nil then return 0 else local i=1 repeat if tubes[i]==nil then break end i=i+1 until false n=meta:get_int("tubedir")+1 repeat if n>=i then n=n-i+1 else break end until false if pipeworks.enable_cyclic_mode then meta:set_int("tubedir",n) end velocity.x=tubes[n].vect.x*vel.speed velocity.y=tubes[n].vect.y*vel.speed velocity.z=tubes[n].vect.z*vel.speed end else local i=1 repeat if chests[i]==nil then break end i=i+1 until false n=meta:get_int("tubedir")+1 repeat if n>=i then n=n-i+1 else break end until false if pipeworks.enable_cyclic_mode then meta:set_int("tubedir",n) end velocity.x=chests[n].vect.x*speed velocity.y=chests[n].vect.y*speed velocity.z=chests[n].vect.z*speed end return 1 end