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