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#140 Fix anticheat (add settings)

This commit is contained in:
kay27 2022-02-02 03:48:11 +04:00
parent 03590d3730
commit effe1a7ac5
2 changed files with 61 additions and 28 deletions
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81
mods/PLAYER/mcl_anticheat/init.lua
View File

@ -1,5 +1,6 @@
local flights_kick_threshold = 10
local suffocations_kick_threshold = 1
local enable_anticheat = true
local kick_cheaters = false
local kick_threshold = 10
local after = minetest.after
local get_connected_players = minetest.get_connected_players
@ -8,24 +9,34 @@ local get_objects_inside_radius = minetest.get_objects_inside_radius
local get_player_by_name = minetest.get_player_by_name
local kick_player = minetest.kick_player
local set_node = minetest.set_node
local find_nodes_in_area = minetest.find_nodes_in_area
local ceil = math.ceil
local floor = math.floor
local distance = vector.distance
local window_size = 10
local detection_interval = 1.7
local window_size = 8
local detection_interval = 1.6
local step_seconds = detection_interval / window_size
local joined_players = {}
local function update_settings()
enable_anticheat = minetest.settings:get_bool("enable_anticheat", true)
kick_cheaters = minetest.settings:get_bool("kick_cheaters", false)
kick_threshold = tonumber(minetest.settings:get("kick_threshold") or 10)
minetest.after(10, update_settings)
end
update_settings()
local function update_player(player_object)
if not player_object then return end
local name = player_object:get_player_name()
if not name then return end
local pos = player_object:get_pos()
local x, y, z = floor(pos.x), floor(pos.y-0.1), floor(pos.z)
local x, z = floor(pos.x), floor(pos.z)
local feet_y, head_y = floor(pos.y-0.1), floor(pos.y + 1.49)
if mcl_playerplus.elytra then
local elytra = mcl_playerplus.elytra[player_object]
@ -34,19 +45,16 @@ local function update_player(player_object)
end
end
local air = get_node({x = x , y = y , z = z }).name == "air"
and get_node({x = x , y = y , z = z + 1}).name == "air"
and get_node({x = x , y = y + 1, z = z }).name == "air"
and get_node({x = x , y = y + 1, z = z + 1}).name == "air"
and get_node({x = x + 1, y = y , z = z }).name == "air"
and get_node({x = x + 1, y = y , z = z + 1}).name == "air"
and get_node({x = x + 1, y = y + 1, z = z }).name == "air"
and get_node({x = x + 1, y = y + 1, z = z + 1}).name == "air"
local air = #find_nodes_in_area({x = x, y = feet_y, z = z}, {x = x + 1, y = feet_y + 1, z = z + 1}, "air") == 8
and #get_objects_inside_radius({x = pos.x, y = pos.y - 0.6, z = pos.z}, 1.3) > 1
local noclip = #find_nodes_in_area({x = x, y = head_y, z = z}, {x = x + 1, y = head_y + 1, z = z + 1}, "group:opaque") == 8
local player_data = {
pos = pos,
velocity = player_object:get_velocity(),
air = air
air = air,
noclip = noclip,
}
if joined_players[name] then
@ -68,6 +76,7 @@ local function check_player(name)
if not data[0] then return end
local always_air = true
local always_noclip = true
local falling = data[0].velocity.y < 0
for i = 0, window_size - 1 do
local derivative = data[i]
@ -76,6 +85,7 @@ local function check_player(name)
return
end
always_air = always_air and derivative.air
always_noclip = always_noclip and derivative.noclip
falling = falling or derivative.velocity.y < 0
end
if always_air and not falling then
@ -84,26 +94,39 @@ local function check_player(name)
data.flights = 1
else
data.flights = data.flights + 1
if data.flights >= flights_kick_threshold then
kick_player(name, "flights")
end
end
if kick_cheaters and kick_threshold and kick_threshold > 0 and data.flights >= kick_threshold then
kick_player(name, "flights")
return
end
local obj_player = minetest.get_player_by_name(name)
if not obj_player then
kick_player(name, "flights")
return
end
local velocity = obj_player:get_velocity()
local pos = obj_player:get_pos()
local x, y, z = floor(pos.x), floor(pos.y), floor(pos.z)
while ( get_node({x = x , y = y, z = z }).name == "air"
and get_node({x = x , y = y, z = z + 1}).name == "air"
and get_node({x = x + 1, y = y, z = z }).name == "air"
and get_node({x = x + 1, y = y, z = z + 1}).name == "air"
) do
while #find_nodes_in_area({x = x, y = y, z = z}, {x = x + 1, y = y, z = z + 1}, "air") == 4 do
y = y - 1
end
obj_player:set_velocity({x = velocity.x, y = -10, z = velocity.z})
obj_player:set_pos({x = x, y = y + 0.5, z = z})
obj_player:set_velocity({x = 0, y = 0, z = 0})
obj_player:set_acceleration({x = 0, y = 0, z = 0})
end
if always_noclip then
-- noclip detected
local obj_player = minetest.get_player_by_name(name)
if not obj_player then
return
end
local pos = obj_player:get_pos()
local x, y, z = floor(pos.x), floor(pos.y+1.49), floor(pos.z)
while #find_nodes_in_area({x = x, y = y, z = z}, {x = x + 1, y = y, z = z + 1}, "group:opaque") == 8 do
y = y + 1
end
obj_player:set_pos({x = x, y = y, z = z})
obj_player:set_velocity({x = 0, y = 0, z = 0})
obj_player:set_acceleration({x = 0, y = 0, z = 0})
end
end
@ -117,9 +140,11 @@ local function remove_player(player_object)
end
local function step()
for _, player in pairs(get_connected_players()) do
update_player(player)
check_player(player:get_player_name())
if enable_anticheat then
for _, player in pairs(get_connected_players()) do
update_player(player)
check_player(player:get_player_name())
end
end
after(step_seconds, step)
end
@ -161,7 +186,7 @@ minetest.register_on_placenode(function(pos, newnode, placer, oldnode, itemstack
data.suffocations = data.suffocations + 1
end
end
if data.suffocations >= suffocations_kick_threshold then
if data.suffocations >= kick_threshold then
kick_player(name, "choker")
end
end)

8
settingtypes.txt
View File

@ -157,6 +157,14 @@ fix_doubleplants (Mcimport double plant fixes) bool true
# Allow players to create Minecraft-like maps.
enable_real_maps (Enable Real Maps) bool true
[Anticheat]
# Enable anticheats
enable_anticheat (Enable Anticheat) bool true
# Kick cheaters
kick_cheaters (Kick Cheaters) bool false
# Cheat kicking threshold
kick_threshold (Cheat Kicking Threshold) int 10
[Debugging]
# If enabled, this will show the itemstring of an item in the description.
mcl_item_id_debug (Item ID Debug) bool false