mirror of
https://github.com/ShadMOrdre/lib_materials.git
synced 2024-11-05 01:50:42 +01:00
300 lines
11 KiB
Lua
300 lines
11 KiB
Lua
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local MP = minetest.get_modpath(minetest.get_current_modname()).."/"
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node_io = {}
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-- get target side
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node_io.get_target_side = function(pos, target_pos)
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if pos.y > target_pos.y then return "U" end
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if pos.y < target_pos.y then return "D" end
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if pos.z > target_pos.z then return "N" end
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if pos.z < target_pos.z then return "S" end
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if pos.x > target_pos.x then return "E" end
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return "W"
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end
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-- get pointed side
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node_io.get_pointed_side = function(pointer, pointed_thing)
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local p0 = pointed_thing.under
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local p1 = pointed_thing.above
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if p0.y == p1.y then
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if p0.z > p1.z then return "S" end
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if p0.z < p1.z then return "N" end
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if p0.x > p1.x then return "W" end
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return "E"
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elseif p0.y < p1.y then
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return "U"
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else
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return "D"
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end
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end
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-- notify all six neighbors of node changes (placed, dug, can_put, can_take)
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node_io.update_neighbors = function(pos)
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local p, n, d
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p={x=pos.x+1, y=pos.y, z=pos.z} n=minetest.get_node(p) d=minetest.registered_nodes[n.name] if d and d.node_io_on_neighbor_update then d.node_io_on_neighbor_update(p,n,"W") end
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p={x=pos.x-1, y=pos.y, z=pos.z} n=minetest.get_node(p) d=minetest.registered_nodes[n.name] if d and d.node_io_on_neighbor_update then d.node_io_on_neighbor_update(p,n,"E") end
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p={x=pos.x, y=pos.y+1, z=pos.z} n=minetest.get_node(p) d=minetest.registered_nodes[n.name] if d and d.node_io_on_neighbor_update then d.node_io_on_neighbor_update(p,n,"D") end
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p={x=pos.x, y=pos.y-1, z=pos.z} n=minetest.get_node(p) d=minetest.registered_nodes[n.name] if d and d.node_io_on_neighbor_update then d.node_io_on_neighbor_update(p,n,"U") end
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p={x=pos.x, y=pos.y, z=pos.z+1} n=minetest.get_node(p) d=minetest.registered_nodes[n.name] if d and d.node_io_on_neighbor_update then d.node_io_on_neighbor_update(p,n,"S") end
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p={x=pos.x, y=pos.y, z=pos.z-1} n=minetest.get_node(p) d=minetest.registered_nodes[n.name] if d and d.node_io_on_neighbor_update then d.node_io_on_neighbor_update(p,n,"N") end
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end
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-- query API
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-- can_* functions should always be called first and return false if ndef isn't found (unknown node)
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-- the other functions can safely skip the ndef check for performance
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node_io.can_put_item = function(pos, node, side)
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local ndef = minetest.registered_nodes[node.name]
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if not ndef or not ndef.node_io_can_put_item then return false end
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return ndef.node_io_can_put_item(pos, node, side)
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end
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node_io.can_put_liquid = function(pos, node, side)
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local ndef = minetest.registered_nodes[node.name]
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if not ndef or not ndef.node_io_can_put_liquid then return false end
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return ndef.node_io_can_put_liquid(pos, node, side)
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end
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node_io.can_take_item = function(pos, node, side)
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local ndef = minetest.registered_nodes[node.name]
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if not ndef or not ndef.node_io_can_take_item then return false end
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return ndef.node_io_can_take_item(pos, node, side)
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end
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node_io.can_take_liquid = function(pos, node, side)
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local ndef = minetest.registered_nodes[node.name]
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if not ndef or not ndef.node_io_can_take_liquid then return false end
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return ndef.node_io_can_take_liquid(pos, node, side)
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end
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node_io.accepts_millibuckets = function(pos, node, side)
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local ndef = minetest.registered_nodes[node.name]
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if not ndef or not ndef.node_io_accepts_millibuckets then return false end
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return ndef.node_io_accepts_millibuckets(pos, node, side)
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end
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node_io.room_for_item = function(pos, node, side, itemstack, count) -- returns non-negative number
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_room_for_item then return 0 end
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return ndef.node_io_room_for_item(pos, node, side, itemstack, count)
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end
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node_io.room_for_liquid = function(pos, node, side, liquid, millibuckets) -- returns non-negative number
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_room_for_liquid then return 0 end
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return ndef.node_io_room_for_liquid(pos, node, side, liquid, millibuckets)
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end
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node_io.get_item_size = function(pos, node, side) -- returns non-negative number
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_get_item_size then return 0 end
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return ndef.node_io_get_item_size(pos, node, side)
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end
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node_io.get_liquid_size = function(pos, node, side) -- returns non-negative number
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_get_liquid_size then return 0 end
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return ndef.node_io_get_liquid_size(pos, node, side)
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end
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node_io.get_item_name = function(pos, node, side, index) -- returns string or empty string
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_get_item_name then return "" end
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return ndef.node_io_get_item_name(pos, node, side, index)
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end
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node_io.get_liquid_name = function(pos, node, side, index) -- returns string or empty string
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_get_liquid_name then return "" end
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return ndef.node_io_get_liquid_name(pos, node, side, index)
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end
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node_io.get_item_stack = function(pos, node, side, index) -- returns itemstack or nil
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_get_item_stack then return nil end
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return ndef.node_io_get_item_stack(pos, node, side, index)
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end
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node_io.get_liquid_stack = function(pos, node, side, index) -- returns itemstack or nil
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_get_liquid_stack then return nil end
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return ndef.node_io_get_liquid_stack(pos, node, side, index)
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end
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-- access API
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node_io.put_item = function(pos, node, side, putter, itemstack) -- returns itemstack with leftovers or a cleared itemstack
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_put_item then return itemstack end
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return ndef.node_io_put_item(pos, node, side, putter, itemstack)
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end
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node_io.put_liquid = function(pos, node, side, putter, liquid, millibuckets) -- returns leftover millibuckets or zero
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_put_liquid then return millibuckets end
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return ndef.node_io_put_liquid(pos, node, side, putter, liquid, millibuckets)
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end
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node_io.take_item = function(pos, node, side, taker, want_item, want_count) -- returns itemstack or nil
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_take_item then return nil end
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return ndef.node_io_take_item(pos, node, side, taker, want_item, want_count)
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end
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node_io.take_liquid = function(pos, node, side, taker, want_liquid, want_count) -- returns {name:string, millibuckets:int} or nil
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.node_io_take_liquid then return nil end
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return ndef.node_io_take_liquid(pos, node, side, taker, want_liquid, want_count)
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end
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-- functions for mods with inventories to implement API
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node_io.get_inventory = function(pos)
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if pos.type then
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-- {type="node", pos={x=<X>, y=<Y>, z=<Z>}}
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-- {type="detached", name="<name>"}
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-- {type="player", name="<name>"}
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return minetest.get_inventory(pos)
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else
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-- {x=<X>, y=<Y>, z=<Z>}
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return minetest.get_meta(pos):get_inventory()
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end
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end
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node_io.compare_itemstack = function(itemstack1, itemstack2)
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if itemstack1:get_name() ~= itemstack2:get_name() then return false end
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if itemstack1:get_wear() ~= itemstack2:get_wear() then return false end
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if itemstack1:get_meta() ~= itemstack2:get_meta() then return false end
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return true
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end
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node_io.room_for_item_in_inventory = function(inv, inv_name, itemstack, count)
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local max = itemstack:get_stack_max()
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local put_count = max
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if count < put_count then put_count = count end
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local room = 0
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for i = 1, inv:get_size(inv_name) do
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local stack = inv:get_stack("main", i)
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if stack:is_empty() then return put_count end
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if node_io.compare_itemstack(stack, itemstack) then
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if stack:get_count() < max then
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room = room + max - stack:get_count()
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if room >= put_count then return put_count end
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end
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end
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end
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return room
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end
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node_io.get_inventory_size = function(pos, inv_name)
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local inv = node_io.get_inventory(pos) -- see node_io.get_inventory() for pos details
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if not inv then return 0 end
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return inv:get_size(inv_name)
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end
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node_io.get_inventory_name = function(pos, inv_name, index)
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local inv = node_io.get_inventory(pos) -- see node_io.get_inventory() for pos details
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if not inv or index < 1 or index > inv:get_size(inv_name) then return "" end
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return inv:get_stack(inv_name, index):get_name()
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end
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node_io.get_inventory_stack = function(pos, inv_name, index)
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local inv = node_io.get_inventory(pos) -- see node_io.get_inventory() for pos details
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if not inv or index < 1 or index > inv:get_size(inv_name) then return nil end
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local stack = inv:get_stack(inv_name, index)
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if stack:is_empty() then return nil end
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stack:set_count(1)
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return stack
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end
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node_io.put_item_in_inventory = function(pos, node, inv_name, putter, itemstack)
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local inv = node_io.get_inventory(pos) -- see node_io.get_inventory() for pos details
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if not inv or itemstack:is_empty() then return itemstack end
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local leftovers = inv:add_item(inv_name, itemstack)
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local ndef = minetest.registered_nodes[node.name]
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if ndef.on_metadata_inventory_put and putter then
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ndef.on_metadata_inventory_put(pos, inv_name, 0, itemstack, putter)
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-- TODO: 0 is index in inv_name
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end
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if leftovers then return leftovers end
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itemstack:clear()
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return itemstack
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end
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node_io.take_item_from_inventory = function(pos, node, inv_name, taker, want_item, want_count)
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local inv = node_io.get_inventory(pos) -- see node_io.get_inventory() for pos details
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if not inv or inv:is_empty(inv_name) then return nil end
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for i = 1, inv:get_size(inv_name) do
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local stack = inv:get_stack(inv_name, i)
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local stack_item = stack:get_name()
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if stack_item ~= "" and (want_item == nil or (type(want_item) == "userdata" and node_io.compare_itemstack(stack, want_item)) or stack_item == want_item) then
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local result_stack
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if stack:get_count() > want_count then
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-- stack is larger than wanted
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result_stack = stack:take_item(want_count)
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inv:set_stack(inv_name, i, stack)
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else
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inv:remove_item(inv_name, stack)
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result_stack = stack
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end
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local ndef = minetest.registered_nodes[node.name]
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if ndef.on_metadata_inventory_take and taker then
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ndef.on_metadata_inventory_take(pos, inv_name, i, stack, taker)
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end
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return result_stack
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end
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end
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end
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node_io.init_main_inventory = function(node_name, allow_take)
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local def = {}
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def.node_io_can_put_item = function(pos, node, side) return true end
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def.node_io_room_for_item = function(pos, node, side, itemstack, count)
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local inv = node_io.get_inventory(pos) -- see node_io.get_inventory() for pos details
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if not inv then return 0 end
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return node_io.room_for_item_in_inventory(inv, "main", itemstack, count)
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end
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def.node_io_put_item = function(pos, node, side, putter, itemstack)
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return node_io.put_item_in_inventory(pos, node, "main", putter, itemstack)
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end
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if allow_take then
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def.node_io_can_take_item = function(pos, node, side) return true end
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def.node_io_get_item_size = function(pos, node, side)
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return node_io.get_inventory_size(pos, "main")
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end
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def.node_io_get_item_name = function(pos, node, side, index)
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return node_io.get_inventory_name(pos, "main", index)
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end
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def.node_io_get_item_stack = function(pos, node, side, index)
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return node_io.get_inventory_stack(pos, "main", index)
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end
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def.node_io_take_item = function(pos, node, side, taker, want_item, want_count)
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return node_io.take_item_from_inventory(pos, node, "main", taker, want_item, want_count)
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end
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end
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minetest.override_item(node_name, def)
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end
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dofile(MP.."lib_materials_nodeio_support.lua")
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print("[MOD] Node IO loaded")
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