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-rw-r--r--mesecons/wires.lua250
1 files changed, 250 insertions, 0 deletions
diff --git a/mesecons/wires.lua b/mesecons/wires.lua
new file mode 100644
index 0000000..18ae8f5
--- /dev/null
+++ b/mesecons/wires.lua
@@ -0,0 +1,250 @@
+-- naming scheme: wire:(xp)(zp)(xm)(zm)(xpyp)(zpyp)(xmyp)(zmyp)_on/off
+-- where x= x direction, z= z direction, y= y direction, p = +1, m = -1, e.g. xpym = {x=1, y=-1, z=0}
+-- The (xp)/(zpyp)/.. statements shall be replaced by either 0 or 1
+-- Where 0 means the wire has no visual connection to that direction and
+-- 1 means that the wire visually connects to that other node.
+
+-- #######################
+-- ## Update wire looks ##
+-- #######################
+
+-- self_pos = pos of any mesecon node, from_pos = pos of conductor to getconnect for
+local wire_getconnect = function (from_pos, self_pos)
+ local node = minetest.get_node(self_pos)
+ if minetest.registered_nodes[node.name]
+ and minetest.registered_nodes[node.name].mesecons then
+ -- rules of node to possibly connect to
+ local rules = {}
+ if (minetest.registered_nodes[node.name].mesecon_wire) then
+ rules = mesecon.rules.default
+ else
+ rules = mesecon.get_any_rules(node)
+ end
+
+ for _, r in ipairs(mesecon.flattenrules(rules)) do
+ if (mesecon.cmpPos(mesecon.addPosRule(self_pos, r), from_pos)) then
+ return true
+ end
+ end
+ end
+ return false
+end
+
+-- Update this node
+local wire_updateconnect = function (pos)
+ local connections = {}
+
+ for _, r in ipairs(mesecon.rules.default) do
+ if wire_getconnect(pos, mesecon.addPosRule(pos, r)) then
+ table.insert(connections, r)
+ end
+ end
+
+ local nid = {}
+ for _, vec in ipairs(connections) do
+ -- flat component
+ if vec.x == 1 then nid[0] = "1" end
+ if vec.z == 1 then nid[1] = "1" end
+ if vec.x == -1 then nid[2] = "1" end
+ if vec.z == -1 then nid[3] = "1" end
+
+ -- slopy component
+ if vec.y == 1 then
+ if vec.x == 1 then nid[4] = "1" end
+ if vec.z == 1 then nid[5] = "1" end
+ if vec.x == -1 then nid[6] = "1" end
+ if vec.z == -1 then nid[7] = "1" end
+ end
+ end
+
+ local nodeid = (nid[0] or "0")..(nid[1] or "0")..(nid[2] or "0")..(nid[3] or "0")
+ ..(nid[4] or "0")..(nid[5] or "0")..(nid[6] or "0")..(nid[7] or "0")
+
+ local state_suffix = string.find(minetest.get_node(pos).name, "_off") and "_off" or "_on"
+ minetest.set_node(pos, {name = "mesecons:wire_"..nodeid..state_suffix})
+end
+
+local update_on_place_dig = function (pos, node)
+ -- Update placed node (get_node again as it may have been dug)
+ local nn = minetest.get_node(pos)
+ if (minetest.registered_nodes[nn.name])
+ and (minetest.registered_nodes[nn.name].mesecon_wire) then
+ wire_updateconnect(pos)
+ end
+
+ -- Update nodes around it
+ local rules = {}
+ if minetest.registered_nodes[node.name]
+ and minetest.registered_nodes[node.name].mesecon_wire then
+ rules = mesecon.rules.default
+ else
+ rules = mesecon.get_any_rules(node)
+ end
+ if (not rules) then return end
+
+ for _, r in ipairs(mesecon.flattenrules(rules)) do
+ local np = mesecon.addPosRule(pos, r)
+ if minetest.registered_nodes[minetest.get_node(np).name]
+ and minetest.registered_nodes[minetest.get_node(np).name].mesecon_wire then
+ wire_updateconnect(np)
+ end
+ end
+end
+
+function mesecon.update_autoconnect(pos, node)
+ if (not node) then node = minetest.get_node(pos) end
+ update_on_place_dig(pos, node)
+end
+
+-- ############################
+-- ## Wire node registration ##
+-- ############################
+-- Nodeboxes:
+local box_center = {-1/16, -.5, -1/16, 1/16, -.5+1/16, 1/16}
+local box_bump1 = { -2/16, -8/16, -2/16, 2/16, -13/32, 2/16 }
+
+local nbox_nid =
+{
+ [0] = {1/16, -.5, -1/16, 8/16, -.5+1/16, 1/16}, -- x positive
+ [1] = {-1/16, -.5, 1/16, 1/16, -.5+1/16, 8/16}, -- z positive
+ [2] = {-8/16, -.5, -1/16, -1/16, -.5+1/16, 1/16}, -- x negative
+ [3] = {-1/16, -.5, -8/16, 1/16, -.5+1/16, -1/16}, -- z negative
+
+ [4] = {.5-1/16, -.5+1/16, -1/16, .5, .4999+1/16, 1/16}, -- x positive up
+ [5] = {-1/16, -.5+1/16, .5-1/16, 1/16, .4999+1/16, .5}, -- z positive up
+ [6] = {-.5, -.5+1/16, -1/16, -.5+1/16, .4999+1/16, 1/16}, -- x negative up
+ [7] = {-1/16, -.5+1/16, -.5, 1/16, .4999+1/16, -.5+1/16} -- z negative up
+}
+
+local tiles_off = { "mesecons_wire_off.png" }
+local tiles_on = { "mesecons_wire_on.png" }
+
+local selectionbox =
+{
+ type = "fixed",
+ fixed = {-.5, -.5, -.5, .5, -.5+4/16, .5}
+}
+
+-- go to the next nodeid (ex.: 01000011 --> 01000100)
+local nid_inc = function() end
+nid_inc = function (nid)
+ local i = 0
+ while nid[i-1] ~= 1 do
+ nid[i] = (nid[i] ~= 1) and 1 or 0
+ i = i + 1
+ end
+
+ -- BUT: Skip impossible nodeids:
+ if ((nid[0] == 0 and nid[4] == 1) or (nid[1] == 0 and nid[5] == 1)
+ or (nid[2] == 0 and nid[6] == 1) or (nid[3] == 0 and nid[7] == 1)) then
+ return nid_inc(nid)
+ end
+
+ return i <= 8
+end
+
+register_wires = function()
+ local nid = {}
+ while true do
+ -- Create group specifiction and nodeid string (see note above for details)
+ local nodeid = (nid[0] or "0")..(nid[1] or "0")..(nid[2] or "0")..(nid[3] or "0")
+ ..(nid[4] or "0")..(nid[5] or "0")..(nid[6] or "0")..(nid[7] or "0")
+
+ -- Calculate nodebox
+ local nodebox = {type = "fixed", fixed={box_center}}
+ for i=0,7 do
+ if nid[i] == 1 then
+ table.insert(nodebox.fixed, nbox_nid[i])
+ end
+ end
+
+ -- Add bump to nodebox if curved
+ if (nid[0] == 1 and nid[1] == 1) or (nid[1] == 1 and nid[2] == 1)
+ or (nid[2] == 1 and nid[3] == 1) or (nid[3] == 1 and nid[0] == 1) then
+ table.insert(nodebox.fixed, box_bump1)
+ end
+
+ -- If nothing to connect to, still make a nodebox of a straight wire
+ if nodeid == "00000000" then
+ nodebox.fixed = {-8/16, -.5, -1/16, 8/16, -.5+1/16, 1/16}
+ end
+
+ local rules = {}
+ if (nid[0] == 1) then table.insert(rules, vector.new( 1, 0, 0)) end
+ if (nid[1] == 1) then table.insert(rules, vector.new( 0, 0, 1)) end
+ if (nid[2] == 1) then table.insert(rules, vector.new(-1, 0, 0)) end
+ if (nid[3] == 1) then table.insert(rules, vector.new( 0, 0, -1)) end
+
+ if (nid[0] == 1) then table.insert(rules, vector.new( 1, -1, 0)) end
+ if (nid[1] == 1) then table.insert(rules, vector.new( 0, -1, 1)) end
+ if (nid[2] == 1) then table.insert(rules, vector.new(-1, -1, 0)) end
+ if (nid[3] == 1) then table.insert(rules, vector.new( 0, -1, -1)) end
+
+ if (nid[4] == 1) then table.insert(rules, vector.new( 1, 1, 0)) end
+ if (nid[5] == 1) then table.insert(rules, vector.new( 0, 1, 1)) end
+ if (nid[6] == 1) then table.insert(rules, vector.new(-1, 1, 0)) end
+ if (nid[7] == 1) then table.insert(rules, vector.new( 0, 1, -1)) end
+
+ local meseconspec_off = { conductor = {
+ rules = rules,
+ state = mesecon.state.off,
+ onstate = "mesecons:wire_"..nodeid.."_on"
+ }}
+
+ local meseconspec_on = { conductor = {
+ rules = rules,
+ state = mesecon.state.on,
+ offstate = "mesecons:wire_"..nodeid.."_off"
+ }}
+
+ local groups_on = {dig_immediate = 3, mesecon_conductor_craftable = 1,
+ not_in_creative_inventory = 1}
+ local groups_off = {dig_immediate = 3, mesecon_conductor_craftable = 1}
+ if nodeid ~= "00000000" then
+ groups_off["not_in_creative_inventory"] = 1
+ end
+
+ mesecon.register_node("mesecons:wire_"..nodeid, {
+ description = "Mesecon",
+ drawtype = "nodebox",
+ inventory_image = "mesecons_wire_inv.png",
+ wield_image = "mesecons_wire_inv.png",
+ paramtype = "light",
+ paramtype2 = "facedir",
+ sunlight_propagates = true,
+ selection_box = selectionbox,
+ node_box = nodebox,
+ walkable = false,
+ drop = "mesecons:wire_00000000_off",
+ mesecon_wire = true
+ }, {tiles = tiles_off, mesecons = meseconspec_off, groups = groups_off},
+ {tiles = tiles_on, mesecons = meseconspec_on, groups = groups_on})
+
+ if (nid_inc(nid) == false) then return end
+ end
+end
+register_wires()
+
+-- ##############
+-- ## Crafting ##
+-- ##############
+minetest.register_craft({
+ type = "cooking",
+ output = "mesecons:wire_00000000_off 2",
+ recipe = "default:mese_crystal_fragment",
+ cooktime = 3,
+})
+
+minetest.register_craft({
+ type = "cooking",
+ output = "mesecons:wire_00000000_off 18",
+ recipe = "default:mese_crystal",
+ cooktime = 15,
+})
+
+minetest.register_craft({
+ type = "cooking",
+ output = "mesecons:wire_00000000_off 162",
+ recipe = "default:mese",
+ cooktime = 30,
+})