mesecons/mesecons_gates/init.lua
Jeija c326dc221a Rewrite Logic Gates: Makes it super-easy to add new gates and cleans up code
Fix bugs in the Luacontroller (when placing, false input pin values were given) and fix variables
leaking into the global environment in pistons.
2014-11-29 15:08:37 +01:00

125 lines
3.9 KiB
Lua

local nodebox = {
type = "fixed",
fixed = {{-8/16, -8/16, -8/16, 8/16, -7/16, 8/16 }},
}
local function gate_rotate_rules(node, rules)
for rotations = 0, node.param2 - 1 do
rules = mesecon.rotate_rules_left(rules)
end
return rules
end
local function gate_get_output_rules(node)
return gate_rotate_rules(node, {{x=1, y=0, z=0}})
end
local function gate_get_input_rules_oneinput(node)
return gate_rotate_rules(node, {{x=-1, y=0, z=0}})
end
local function gate_get_input_rules_twoinputs(node)
return gate_rotate_rules(node, {{x=0, y=0, z=1, name="input1"},
{x=0, y=0, z=-1, name="input2"}})
end
local function set_gate(pos, node, state)
local gate = minetest.registered_nodes[node.name]
if mesecon.do_overheat(pos) then
minetest.remove_node(pos)
mesecon.receptor_off(pos, gate_get_output_rules(node))
minetest.add_item(pos, gate.drop)
elseif state then
minetest.swap_node(pos, {name = gate.onstate, param2=node.param2})
mesecon.receptor_on(pos, gate_get_output_rules(node))
else
minetest.swap_node(pos, {name = gate.offstate, param2=node.param2})
mesecon.receptor_off(pos, gate_get_output_rules(node))
end
end
local function update_gate(pos, node, link, newstate)
local gate = minetest.registered_nodes[node.name]
if gate.inputnumber == 1 then
set_gate(pos, node, gate.assess(newstate == "on"))
elseif gate.inputnumber == 2 then
local meta = minetest.get_meta(pos)
meta:set_int(link.name, newstate == "on" and 1 or 0)
local val1 = meta:get_int("input1") == 1
local val2 = meta:get_int("input2") == 1
set_gate(pos, node, gate.assess(val1, val2))
end
end
function register_gate(name, inputnumber, assess, recipe)
local get_inputrules = inputnumber == 2 and gate_get_input_rules_twoinputs or
gate_get_input_rules_oneinput
local description = "Mesecons Logic Gate: "..name
local basename = "mesecons_gates:"..name
mesecon.register_node(basename, {
description = description,
inventory_image = "jeija_gate_off.png^jeija_gate_"..name..".png",
paramtype = "light",
paramtype2 = "facedir",
drawtype = "nodebox",
drop = basename.."_off",
selection_box = nodebox,
node_box = nodebox,
walkable = true,
sounds = default.node_sound_stone_defaults(),
assess = assess,
onstate = basename.."_on",
offstate = basename.."_off",
inputnumber = inputnumber
},{
tiles = {"jeija_microcontroller_bottom.png^".."jeija_gate_off.png^"..
"jeija_gate_"..name..".png"},
groups = {dig_immediate = 2},
mesecons = { receptor = {
state = "off",
rules = gate_get_output_rules
}, effector = {
rules = get_inputrules,
action_change = update_gate
}}
},{
tiles = {"jeija_microcontroller_bottom.png^".."jeija_gate_on.png^"..
"jeija_gate_"..name..".png"},
groups = {dig_immediate = 2, not_in_creative_inventory = 1},
mesecons = { receptor = {
state = "on",
rules = gate_get_output_rules
}, effector = {
rules = get_inputrules,
action_change = update_gate
}}
})
minetest.register_craft({output = basename.."_off", recipe = recipe})
end
register_gate("diode", 1, function (input) return input end,
{{"mesecons:mesecon", "mesecons_torch:mesecon_torch_on", "mesecons_torch:mesecon_torch_on"}})
register_gate("not", 1, function (input) return not input end,
{{"mesecons:mesecon", "mesecons_torch:mesecon_torch_on", "mesecons:mesecon"}})
register_gate("and", 2, function (val1, val2) return val1 and val2 end,
{{"mesecons:mesecon", "", ""},
{"", "mesecons_materials:silicon", "mesecons:mesecon"},
{"mesecons:mesecon", "", ""}})
register_gate("nand", 2, function (val1, val2) return not (val1 and val2) end,
{{"mesecons:mesecon", "", ""},
{"", "mesecons_materials:silicon", "mesecons_torch:mesecon_torch_on"},
{"mesecons:mesecon", "", ""}})
register_gate("xor", 2, function (val1, val2) return (val1 or val2) and not (val1 and val2) end,
{{"mesecons:mesecon", "", ""},
{"", "mesecons_materials:silicon", "mesecons_materials:silicon"},
{"mesecons:mesecon", "", ""}})