minetest-mm/mods/mesecons/mesecons_gates/init.lua

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local S = minetest.get_translator(minetest.get_current_modname())
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local selection_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }
}
local nodebox = {
type = "fixed",
fixed = {
{ -8/16, -8/16, -8/16, 8/16, -7/16, 8/16 }, -- bottom slab
{ -6/16, -7/16, -6/16, 6/16, -6/16, 6/16 }
},
}
local gate_get_output_rules = mesecon.horiz_rules_getter({{x = 1, y = 0, z = 0}})
local gate_get_input_rules_oneinput = mesecon.horiz_rules_getter({{x =-1, y = 0, z = 0}})
local gate_get_input_rules_twoinputs = mesecon.horiz_rules_getter({
{x = 0, y = 0, z = 1, name = "input1"},
{x = 0, y = 0, z = -1, name = "input2"},
})
local function set_gate(pos, node, state)
local gate = minetest.registered_nodes[node.name]
local new_nodename = state and gate.onstate or gate.offstate
minetest.swap_node(pos, {name = new_nodename, param2 = node.param2})
if new_nodename ~= node.name then
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
mesecon.receptor_on(pos, gate_get_output_rules(node))
else
mesecon.receptor_off(pos, gate_get_output_rules(node))
end
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
-- Inputs are stored in param2. Bit 5 is always set.
-- input1 is bit 6 and input2 is bit 7.
local val1, val2
if node.param2 >= 32 then
-- Bit 5 is set, so param2 is in the proper format.
if link.name == "input1" then
val1 = newstate == "on"
val2 = node.param2 >= 128
else
val1 = node.param2 % 128 >= 64
val2 = newstate == "on"
end
else
-- Migrate old gates where the inputs are stored as metadata.
-- This also triggers for newly placed gates.
local meta = minetest.get_meta(pos)
if link.name == "input1" then
val1 = newstate == "on"
val2 = meta:get_int("input2") == 1
else
val1 = meta:get_int("input1") == 1
val2 = newstate == "on"
end
-- Set bit 5 so this won't happen again.
node.param2 = node.param2 + 32
-- Clear the metadata.
meta:set_string("input1", "")
meta:set_string("input2", "")
end
node.param2 = node.param2 % 64 + (val1 and 64 or 0) + (val2 and 128 or 0)
set_gate(pos, node, gate.assess(val1, val2))
end
end
local function register_gate(name, inputnumber, assess, recipe, description)
local get_inputrules = inputnumber == 2 and gate_get_input_rules_twoinputs or
gate_get_input_rules_oneinput
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",
is_ground_content = false,
drawtype = "nodebox",
drop = basename.."_off",
selection_box = selection_box,
node_box = nodebox,
walkable = true,
sounds = mesecon.node_sound.stone,
assess = assess,
onstate = basename.."_on",
offstate = basename.."_off",
inputnumber = inputnumber,
after_dig_node = mesecon.do_cooldown,
on_rotate = mesecon.on_rotate_horiz,
},{
tiles = {
"jeija_microcontroller_bottom.png^".."jeija_gate_off.png^"..
"jeija_gate_output_off.png^".."jeija_gate_"..name..".png",
"jeija_microcontroller_bottom.png^".."jeija_gate_output_off.png^"..
"[transformFY",
"jeija_gate_side.png^".."jeija_gate_side_output_off.png",
"jeija_gate_side.png",
"jeija_gate_side.png",
"jeija_gate_side.png"
},
groups = {dig_immediate = 2, overheat = 1},
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_output_on.png^".."jeija_gate_"..name..".png",
"jeija_microcontroller_bottom.png^".."jeija_gate_output_on.png^"..
"[transformFY",
"jeija_gate_side.png^".."jeija_gate_side_output_on.png",
"jeija_gate_side.png",
"jeija_gate_side.png",
"jeija_gate_side.png"
},
groups = {dig_immediate = 2, not_in_creative_inventory = 1, overheat = 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"}},
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S("Diode"))
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register_gate("not", 1, function (input) return not input end,
{{"mesecons:mesecon", "mesecons_torch:mesecon_torch_on", "mesecons:mesecon"}},
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S("NOT Gate"))
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register_gate("and", 2, function (val1, val2) return val1 and val2 end,
{{"mesecons:mesecon", "", ""},
{"", "mesecons_materials:silicon", "mesecons:mesecon"},
{"mesecons:mesecon", "", ""}},
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S("AND Gate"))
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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", "", ""}},
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S("NAND Gate"))
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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", "", ""}},
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S("XOR Gate"))
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register_gate("nor", 2, function (val1, val2) return not (val1 or val2) end,
{{"mesecons:mesecon", "", ""},
{"", "mesecons:mesecon", "mesecons_torch:mesecon_torch_on"},
{"mesecons:mesecon", "", ""}},
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S("NOR Gate"))
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register_gate("or", 2, function (val1, val2) return (val1 or val2) end,
{{"mesecons:mesecon", "", ""},
{"", "mesecons:mesecon", "mesecons:mesecon"},
{"mesecons:mesecon", "", ""}},
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S("OR Gate"))