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limit redstone distance by checking for players 

This should probably be implemented by having redstone signals
lose strength like in mc. This just prevents redstone action
further than 40 nodes from each player.
This commit is contained in:
cora 2022-03-11 16:51:53 +01:00 committed by kay27
parent 89cbc1deed
commit ba5474f5d4
1 changed files with 12 additions and 0 deletions
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12
mods/ITEMS/REDSTONE/mesecons/util.lua
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@ -346,8 +346,16 @@ function mesecon.vm_abort()
vm_cache = nil vm_cache = nil
end end
local function is_player_close(pos)
for k,p in pairs(minetest.get_connected_players()) do
local d=vector.distance(pos,p:get_pos())
if d < 40 then return true end
end
end
-- Gets the cache entry covering a position, populating it if necessary. -- Gets the cache entry covering a position, populating it if necessary.
local function vm_get_or_create_entry(pos) local function vm_get_or_create_entry(pos)
if not is_player_close(pos) then return end
local hash = hash_blockpos(pos) local hash = hash_blockpos(pos)
local tbl = vm_cache[hash] local tbl = vm_cache[hash]
if not tbl then if not tbl then
@ -364,6 +372,7 @@ end
-- transaction. -- transaction.
function mesecon.vm_get_node(pos) function mesecon.vm_get_node(pos)
local tbl = vm_get_or_create_entry(pos) local tbl = vm_get_or_create_entry(pos)
if not tbl then return end
local index = tbl.va:indexp(pos) local index = tbl.va:indexp(pos)
local node_value = tbl.data[index] local node_value = tbl.data[index]
if node_value == minetest.CONTENT_IGNORE then if node_value == minetest.CONTENT_IGNORE then
@ -380,6 +389,7 @@ end
-- Existing param1, param2, and metadata are left alone. -- Existing param1, param2, and metadata are left alone.
function mesecon.vm_swap_node(pos, name) function mesecon.vm_swap_node(pos, name)
local tbl = vm_get_or_create_entry(pos) local tbl = vm_get_or_create_entry(pos)
if not tbl then return end
local index = tbl.va:indexp(pos) local index = tbl.va:indexp(pos)
tbl.data[index] = minetest.get_content_id(name) tbl.data[index] = minetest.get_content_id(name)
tbl.dirty = true tbl.dirty = true
@ -393,6 +403,7 @@ end
-- --
-- Inside a VM transaction, the transaction’s VM cache is used. -- Inside a VM transaction, the transaction’s VM cache is used.
function mesecon.get_node_force(pos) function mesecon.get_node_force(pos)
if not is_player_close(pos) then return end
if vm_cache then if vm_cache then
return mesecon.vm_get_node(pos) return mesecon.vm_get_node(pos)
else else
@ -424,6 +435,7 @@ function mesecon.swap_node_force(pos, name)
-- This serves to both ensure the mapblock is loaded and also hand us -- This serves to both ensure the mapblock is loaded and also hand us
-- the old node table so we can preserve param2. -- the old node table so we can preserve param2.
local node = mesecon.get_node_force(pos) local node = mesecon.get_node_force(pos)
if not node then return end
node.name = name node.name = name
minetest.swap_node(pos, node) minetest.swap_node(pos, node)
end end