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Store gate inputs in param2 instead of metadata (#583)

This commit is contained in:
Jude Melton-Houghton 2022-08-25 10:55:03 -04:00 committed by GitHub
parent da57a6214a
commit 68171b3d8d
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1 changed files with 42 additions and 15 deletions
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57
mesecons_gates/init.lua
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@ -23,16 +23,18 @@ local gate_get_input_rules_twoinputs = mesecon.horiz_rules_getter({
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))
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
@ -42,11 +44,36 @@ local function update_gate(pos, node, link, newstate)
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
-- 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