mirror of
https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-11-27 04:51:06 +01:00
327 lines
8.8 KiB
Lua
327 lines
8.8 KiB
Lua
-- Functions that get the input/output rules of the comparator
|
|
|
|
local comparator_get_output_rules = function(node)
|
|
local rules = {{x = -1, y = 0, z = 0}}
|
|
for i = 0, node.param2 do
|
|
rules = mesecon:rotate_rules_left(rules)
|
|
end
|
|
return rules
|
|
end
|
|
|
|
|
|
local comparator_get_input_rules = function(node)
|
|
local rules = {
|
|
-- we rely on this order in update_self below
|
|
{x = 1, y = 0, z = 0}, -- back
|
|
{x = 0, y = 0, z = -1}, -- side
|
|
{x = 0, y = 0, z = 1}, -- side
|
|
}
|
|
for i = 0, node.param2 do
|
|
rules = mesecon:rotate_rules_left(rules)
|
|
end
|
|
return rules
|
|
end
|
|
|
|
|
|
-- Functions that are called after the delay time
|
|
|
|
local comparator_turnon = function(params)
|
|
local rules = comparator_get_output_rules(params.node)
|
|
mesecon:receptor_on(params.pos, rules)
|
|
end
|
|
|
|
|
|
local comparator_turnoff = function(params)
|
|
local rules = comparator_get_output_rules(params.node)
|
|
mesecon:receptor_off(params.pos, rules)
|
|
end
|
|
|
|
|
|
-- Functions that set the correct node type an schedule a turnon/off
|
|
|
|
local comparator_activate = function(pos, node)
|
|
local def = minetest.registered_nodes[node.name]
|
|
mesecon:swap_node(pos, def.comparator_onstate)
|
|
minetest.after(0.1, comparator_turnon , {pos = pos, node = node})
|
|
end
|
|
|
|
|
|
local comparator_deactivate = function(pos, node)
|
|
local def = minetest.registered_nodes[node.name]
|
|
mesecon:swap_node(pos, def.comparator_offstate)
|
|
minetest.after(0.1, comparator_turnoff, {pos = pos, node = node})
|
|
end
|
|
|
|
|
|
-- wether pos has an inventory that contains at least one item
|
|
local container_inventory_nonempty = function(pos)
|
|
local invnode = minetest.get_node(pos)
|
|
local invnodedef = minetest.registered_nodes[invnode.name]
|
|
-- Ignore stale nodes
|
|
if not invnodedef then return false end
|
|
|
|
-- Only accept containers. When a container is dug, it's inventory
|
|
-- seems to stay. and we don't want to accept the inventory of an air
|
|
-- block
|
|
if not invnodedef.groups.container then return false end
|
|
|
|
local inv = minetest.get_inventory({type="node", pos=pos})
|
|
if not inv then return false end
|
|
|
|
for listname, _ in pairs(inv:get_lists()) do
|
|
if not inv:is_empty(listname) then return true end
|
|
end
|
|
|
|
return false
|
|
end
|
|
|
|
-- whether the comparator should be on according to its inputs
|
|
local comparator_desired_on = function(pos, node)
|
|
local my_input_rules = comparator_get_input_rules(node);
|
|
local back_rule = my_input_rules[1]
|
|
local state = mesecon:is_powered_from(pos, back_rule)
|
|
or container_inventory_nonempty(vector.add(pos, back_rule))
|
|
|
|
-- if back input if off, we don't need to check side inputs
|
|
if not state then return false end
|
|
|
|
-- without power levels, side inputs have no influence on output in compare
|
|
-- mode
|
|
local mode = minetest.registered_nodes[node.name].comparator_mode
|
|
if mode == "comp" then return state end
|
|
|
|
-- subtract mode, subtract max(side_inputs) from back input
|
|
local side_state = false
|
|
for ri = 2,3 do
|
|
side_state = side_state or mesecon:is_powered_from(pos, my_input_rules[ri])
|
|
if side_state then break end
|
|
end
|
|
-- state is known to be true
|
|
return not side_state
|
|
end
|
|
|
|
|
|
-- update comparator state, if needed
|
|
local update_self = function(pos, node)
|
|
node = node or minetest.get_node(pos)
|
|
local old_state = mesecon:is_receptor_on(node.name)
|
|
local new_state = comparator_desired_on(pos, node)
|
|
if new_state ~= old_state then
|
|
if new_state then
|
|
comparator_activate(pos, node)
|
|
else
|
|
comparator_deactivate(pos, node)
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
-- compute tile depending on state and mode
|
|
local get_tiles = function(state, mode)
|
|
local top = "mcl_comparators_"..state..".png^"..
|
|
"mcl_comparators_"..mode..".png"
|
|
local sides = "mcl_comparators_sides_"..state..".png^"..
|
|
"mcl_comparators_sides_"..mode..".png"
|
|
local ends = "mcl_comparators_ends_"..state..".png^"..
|
|
"mcl_comparators_ends_"..mode..".png"
|
|
return {
|
|
top, "mcl_stairs_stone_slab_top.png",
|
|
sides, sides.."^[transformFX",
|
|
ends, ends,
|
|
}
|
|
end
|
|
|
|
-- Given one mode, get the other mode
|
|
local flipmode = function(mode)
|
|
if mode == "comp" then return "sub"
|
|
elseif mode == "sub" then return "comp"
|
|
end
|
|
end
|
|
|
|
local make_rightclick_handler = function(state, mode)
|
|
local newnodename =
|
|
"mcl_comparators:comparator_"..state.."_"..flipmode(mode)
|
|
return function (pos, node)
|
|
mesecon:swap_node(pos,newnodename)
|
|
end
|
|
end
|
|
|
|
|
|
-- Register the 2 (states) x 2 (modes) comparators
|
|
|
|
local icon = "mcl_comparators_item.png"
|
|
|
|
local node_boxes = {
|
|
comp = {
|
|
{ -8/16, -8/16, -8/16,
|
|
8/16, -6/16, 8/16 }, -- the main slab
|
|
{ -1/16, -6/16, 6/16,
|
|
1/16, -4/16, 4/16 }, -- front torch
|
|
{ -4/16, -6/16, -5/16,
|
|
-2/16, -1/16, -3/16 }, -- left back torch
|
|
{ 2/16, -6/16, -5/16,
|
|
4/16, -1/16, -3/16 }, -- right back torch
|
|
},
|
|
sub = {
|
|
{ -8/16, -8/16, -8/16,
|
|
8/16, -6/16, 8/16 }, -- the main slab
|
|
{ -1/16, -6/16, 6/16,
|
|
1/16, -3/16, 4/16 }, -- front torch (active)
|
|
{ -4/16, -6/16, -5/16,
|
|
-2/16, -1/16, -3/16 }, -- left back torch
|
|
{ 2/16, -6/16, -5/16,
|
|
4/16, -1/16, -3/16 }, -- right back torch
|
|
},
|
|
}
|
|
|
|
local collision_box = {
|
|
type = "fixed",
|
|
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
|
|
}
|
|
|
|
local state_strs = {
|
|
[ mesecon.state.on ] = "on",
|
|
[ mesecon.state.off ] = "off",
|
|
}
|
|
|
|
local groups = {
|
|
dig_immediate = 3,
|
|
dig_by_water = 1,
|
|
destroy_by_lava_flow = 1,
|
|
dig_by_piston = 1,
|
|
attached_node = 1,
|
|
}
|
|
|
|
for _, mode in pairs{"comp", "sub"} do
|
|
for _, state in pairs{mesecon.state.on, mesecon.state.off} do
|
|
local state_str = state_strs[state]
|
|
local nodename =
|
|
"mcl_comparators:comparator_"..state_strs[state].."_"..mode
|
|
|
|
-- Help
|
|
local longdesc, usagehelp, use_help
|
|
if state_strs[state] == "off" and mode == "comp" then
|
|
longdesc = "Redstone comparators are redstone components which "..
|
|
"compare redstone signals and measure various node states, such as "..
|
|
"how full inventories are."
|
|
|
|
usagehelp = "To power a redstone comparater, send a signal in “arrow” "..
|
|
"direction, or place the block to measure there. Send the signal "..
|
|
"to compare with in from the side."
|
|
else
|
|
use_help = false
|
|
end
|
|
|
|
local nodedef = {
|
|
description = "Redstone Comparator",
|
|
inventory_image = icon,
|
|
wield_image = icon,
|
|
_doc_items_create_entry = use_help,
|
|
_doc_items_longdesc = longdesc,
|
|
_doc_items_usagehelp = usagehelp,
|
|
drawtype = "nodebox",
|
|
tiles = get_tiles(state_strs[state], mode),
|
|
wield_image = "mcl_comparators_off.png",
|
|
walkable = true,
|
|
selection_box = collision_box,
|
|
collision_box = collision_box,
|
|
node_box = {
|
|
type = "fixed",
|
|
fixed = node_boxes[mode],
|
|
},
|
|
groups = groups,
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = false,
|
|
is_ground_content = false,
|
|
drop = 'mcl_comparators:comparator_off_comp',
|
|
on_construct = update_self,
|
|
on_rightclick =
|
|
make_rightclick_handler(state_strs[state], mode),
|
|
comparator_mode = mode,
|
|
comparator_onstate = "mcl_comparators:comparator_on_"..mode,
|
|
comparator_offstate = "mcl_comparators:comparator_off_"..mode,
|
|
sounds = mcl_sounds.node_sound_stone_defaults(),
|
|
mesecons = {
|
|
receptor = {
|
|
state = state,
|
|
rules = comparator_get_output_rules,
|
|
},
|
|
effector = {
|
|
rules = comparator_get_input_rules,
|
|
action_change = update_self,
|
|
}
|
|
}
|
|
}
|
|
|
|
if mode == "comp" and state == mesecon.state.off then
|
|
-- This is the prototype
|
|
nodedef._doc_items_create_entry = true
|
|
else
|
|
nodedef.groups = table.copy(nodedef.groups)
|
|
nodedef.groups.not_in_creative_inventory = 1
|
|
local extra_desc = {}
|
|
if mode == "sub" then
|
|
table.insert(extra_desc, "Subtract")
|
|
end
|
|
if state == mesecon.state.on then
|
|
table.insert(extra_desc, "Powered")
|
|
end
|
|
nodedef.description = nodedef.description..
|
|
" ("..table.concat(extra_desc, ", ")..")"
|
|
end
|
|
|
|
minetest.register_node(nodename, nodedef)
|
|
end
|
|
end
|
|
|
|
-- Register recipies
|
|
local rstorch = "mesecons_torch:mesecon_torch_on"
|
|
local quartz = "mcl_nether:quartz"
|
|
local stone = "mcl_core:stone"
|
|
|
|
minetest.register_craft({
|
|
output = "mcl_comparators:comparator_off_comp",
|
|
recipe = {
|
|
{ "", rstorch, "" },
|
|
{ rstorch, quartz, rstorch },
|
|
{ stone, stone, stone },
|
|
}
|
|
})
|
|
|
|
-- Register active block handlers
|
|
minetest.register_abm({
|
|
label = "Comparator check for containers",
|
|
nodenames = {
|
|
"mcl_comparators:comparator_off_comp",
|
|
"mcl_comparators:comparator_off_sub",
|
|
},
|
|
neighbors = {"group:container"},
|
|
interval = 1,
|
|
chance = 1,
|
|
action = update_self,
|
|
})
|
|
|
|
minetest.register_abm({
|
|
label = "Comparator check for no containers",
|
|
nodenames = {
|
|
"mcl_comparators:comparator_on_comp",
|
|
"mcl_comparators:comparator_on_sub",
|
|
},
|
|
-- needs to run regardless of neighbors to make sure we detect when a
|
|
-- container is dug
|
|
interval = 1,
|
|
chance = 1,
|
|
action = update_self,
|
|
})
|
|
|
|
|
|
-- Add entry aliases for the Help
|
|
if minetest.get_modpath("doc") then
|
|
doc.add_entry_alias("nodes", "mcl_comparators:comparator_off_comp",
|
|
"nodes", "mcl_comparators:comparator_off_sub")
|
|
doc.add_entry_alias("nodes", "mcl_comparators:comparator_off_comp",
|
|
"nodes", "mcl_comparators:comparator_on_comp")
|
|
doc.add_entry_alias("nodes", "mcl_comparators:comparator_off_comp",
|
|
"nodes", "mcl_comparators:comparator_on_sub")
|
|
end
|