# ============================================================ # AntiDupeMachine - Item Duplication Machine Detector # ============================================================ # Place in: plugins/Skript/scripts/AntiDupeMachine/ # Reload with: /sk reload anti-dupe-machine # ============================================================ options: # Prefix shown in all messages prefix: &8[&cAntiDupe&8]&r # How many container OPENS within the window triggers a flag container-threshold: 6 container-window: 3 # How many inventory clicks within the window triggers a flag # 25 clicks in 2 seconds is well above normal sorting speed inventory-click-threshold: 25 inventory-click-window: 2 # Minimum dropper/dispenser cluster size to flag # Normal sorters use 2; dupe machines typically use 5+ dropper-chain-threshold: 5 # Strikes before punishment escalates strikes-before-kick: 2 strikes-before-ban: 3 # Ban duration in minutes (0 = permanent) ban-duration: 60 # Whether to broadcast alerts to admins admin-alerts: true # Permission for admin commands and alert visibility admin-permission: antidupe.admin # Permission to be exempt from detection bypass-permission: antidupe.bypass # Colors color-warn: &e color-bad: &c color-good: &a color-info: &7 # ============================================================ # INTERNAL VARIABLES # ============================================================ # {antidupe::container::count::%player%} - container open count # {antidupe::container::time::%player%} - last container open time # {antidupe::invclick::count::%player%} - inventory click count # {antidupe::invclick::time::%player%} - last inventory click time # {antidupe::itemframe::count::%player%} - item frame click count # {antidupe::itemframe::time::%player%} - last item frame click time # {antidupe::shulker::count::%player%} - shulker drag count # {antidupe::shulker::time::%player%} - last shulker drag time # {antidupe::strikes::%player%} - total strikes (persistent) # {antidupe::whitelist::%player%} - true if whitelisted (persistent) # {antidupe::enabled} - global toggle (persistent) # {antidupe::last-flag::%player%} - last flag reason (session) # {antidupe::last-flag-time::%player%} - last flag timestamp (session) # ============================================================ # SCRIPT LOAD / UNLOAD # ============================================================ on script load: if {antidupe::enabled} is not set: set {antidupe::enabled} to true send "{@prefix} &aAntiDupeMachine loaded. Detection: %{antidupe::enabled}%." to console on script unload: send "{@prefix} &cAntiDupeMachine unloaded." to console # ============================================================ # PLAYER QUIT — SESSION VARIABLE CLEANUP # Only session-scoped variables are deleted here. # Strikes and whitelist are intentionally persistent. # ============================================================ on quit: delete {antidupe::container::count::%player%} delete {antidupe::container::time::%player%} delete {antidupe::invclick::count::%player%} delete {antidupe::invclick::time::%player%} delete {antidupe::itemframe::count::%player%} delete {antidupe::itemframe::time::%player%} delete {antidupe::shulker::count::%player%} delete {antidupe::shulker::time::%player%} delete {antidupe::last-flag::%player%} delete {antidupe::last-flag-time::%player%} # ============================================================ # DETECTION 1: RAPID CONTAINER OPENS # Tracks only inventory OPEN events to avoid double-counting. # Catches bots or scripts rapidly cycling containers. # Correct inventory type names omit the word "inventory". # ============================================================ on inventory open: if {antidupe::enabled} is not true: stop if player has permission "{@bypass-permission}": stop if {antidupe::whitelist::%player%} is true: stop set {_invType} to "%type of event-inventory%" if {_invType} contains "chest": antidupe_trackContainer(player) else if {_invType} contains "dropper": antidupe_trackContainer(player) else if {_invType} contains "dispenser": antidupe_trackContainer(player) else if {_invType} contains "hopper": antidupe_trackContainer(player) else if {_invType} contains "barrel": antidupe_trackContainer(player) else if {_invType} contains "shulker": antidupe_trackContainer(player) function antidupe_trackContainer(p: player): set {_now} to now if {antidupe::container::time::%{_p}%} is not set: set {antidupe::container::time::%{_p}%} to {_now} set {antidupe::container::count::%{_p}%} to 1 stop set {_elapsed} to difference between {antidupe::container::time::%{_p}%} and {_now} if {_elapsed} > {@container-window} seconds: set {antidupe::container::time::%{_p}%} to {_now} set {antidupe::container::count::%{_p}%} to 1 stop add 1 to {antidupe::container::count::%{_p}%} if {antidupe::container::count::%{_p}%} >= {@container-threshold}: set {antidupe::container::count::%{_p}%} to 0 set {antidupe::container::time::%{_p}%} to {_now} antidupe_flag({_p}, "Rapid Container Interaction") # ============================================================ # DETECTION 2: RAPID INVENTORY CLICKS # Threshold is set high enough that normal sorting, crafting, # and trading will never trigger it. Only macro-speed clicking # (25+ clicks in 2 seconds) will flag. # ============================================================ on inventory click: if {antidupe::enabled} is not true: stop if player has permission "{@bypass-permission}": stop if {antidupe::whitelist::%player%} is true: stop antidupe_trackInvClick(player) function antidupe_trackInvClick(p: player): set {_now} to now if {antidupe::invclick::time::%{_p}%} is not set: set {antidupe::invclick::time::%{_p}%} to {_now} set {antidupe::invclick::count::%{_p}%} to 1 stop set {_elapsed} to difference between {antidupe::invclick::time::%{_p}%} and {_now} if {_elapsed} > {@inventory-click-window} seconds: set {antidupe::invclick::time::%{_p}%} to {_now} set {antidupe::invclick::count::%{_p}%} to 1 stop add 1 to {antidupe::invclick::count::%{_p}%} if {antidupe::invclick::count::%{_p}%} >= {@inventory-click-threshold}: set {antidupe::invclick::count::%{_p}%} to 0 set {antidupe::invclick::time::%{_p}%} to {_now} antidupe_flag({_p}, "Rapid Inventory Manipulation") # ============================================================ # DETECTION 3 & 4: BLOCK PLACE — TNT DUPE + DROPPER CHAIN # Both detections share ONE on-place block to avoid Skript's # duplicate-event merging behaviour causing missed triggers. # # TNT-Piston: detects TNT placed near a piston with a carpet # on top — the classic carpet/TNT dupe setup. # # Dropper Chain: flags clusters of 5+ droppers/dispensers # to avoid false-positives on normal item sorters (2-3 units). # ============================================================ on place: if {antidupe::enabled} is not true: stop if player has permission "{@bypass-permission}": stop if {antidupe::whitelist::%player%} is true: stop # --- TNT-Piston / Carpet Dupe Detection --- if type of event-block is TNT: set {_loc} to location of event-block # Direct piston below the TNT set {_below} to block 1 below {_loc} set {_belowType} to "%type of {_below}%" if {_belowType} contains "piston": cancel event antidupe_flag(player, "TNT-Piston Dupe Setup") stop # Scan nearby blocks for piston+carpet combination loop blocks in radius 2 of {_loc}: set {_bt} to "%type of loop-block%" if {_bt} contains "piston": set {_aboveType} to "%type of block 1 above loop-block%" if {_aboveType} contains "carpet": cancel event antidupe_flag(player, "TNT Carpet Dupe Setup") stop # --- Dropper / Dispenser Chain Detection --- set {_placedType} to "%type of event-block%" if {_placedType} contains "dropper" or {_placedType} contains "dispenser": set {_loc} to location of event-block set {_chainCount} to 0 loop blocks in radius 3 of {_loc}: set {_lt} to "%type of loop-block%" if {_lt} contains "dropper" or {_lt} contains "dispenser": add 1 to {_chainCount} if {_chainCount} >= {@dropper-chain-threshold}: antidupe_flag(player, "Dropper/Dispenser Chain Structure") # ============================================================ # DETECTION 5: RAPID ITEM FRAME INTERACTION # Item frame dupes require very rapid repeated right-clicks. # 6 clicks in 3 seconds is well above normal usage. # ============================================================ on right click on an item frame: if {antidupe::enabled} is not true: stop if player has permission "{@bypass-permission}": stop if {antidupe::whitelist::%player%} is true: stop set {_now} to now if {antidupe::itemframe::time::%player%} is not set: set {antidupe::itemframe::time::%player%} to {_now} set {antidupe::itemframe::count::%player%} to 1 stop set {_elapsed} to difference between {antidupe::itemframe::time::%player%} and {_now} if {_elapsed} > 3 seconds: set {antidupe::itemframe::time::%player%} to {_now} set {antidupe::itemframe::count::%player%} to 1 stop add 1 to {antidupe::itemframe::count::%player%} if {antidupe::itemframe::count::%player%} >= 6: set {antidupe::itemframe::count::%player%} to 0 antidupe_flag(player, "Rapid Item Frame Interaction") # ============================================================ # DETECTION 6: RAPID SHULKER BOX MANIPULATION # Flags unusually fast drag operations into shulker boxes. # Normal packing takes several seconds; dupe scripts are # near-instant. 10 drags in 2 seconds is the threshold. # ============================================================ on inventory drag: if {antidupe::enabled} is not true: stop if player has permission "{@bypass-permission}": stop if {antidupe::whitelist::%player%} is true: stop set {_invType} to "%type of event-inventory%" if {_invType} contains "shulker": set {_now} to now if {antidupe::shulker::time::%player%} is not set: set {antidupe::shulker::time::%player%} to {_now} set {antidupe::shulker::count::%player%} to 1 stop set {_elapsed} to difference between {antidupe::shulker::time::%player%} and {_now} if {_elapsed} > 2 seconds: set {antidupe::shulker::time::%player%} to {_now} set {antidupe::shulker::count::%player%} to 1 stop add 1 to {antidupe::shulker::count::%player%} if {antidupe::shulker::count::%player%} >= 10: set {antidupe::shulker::count::%player%} to 0 antidupe_flag(player, "Rapid Shulker Box Manipulation") # ============================================================ # FLAG HANDLER # Central function: deduplicates rapid repeat flags using a # global cooldown (not per-reason) to prevent double-striking # from two detections firing simultaneously. # Applies strikes, notifies the player, alerts admins, logs. # ============================================================ function antidupe_flag(p: player, reason: text): # Global flag cooldown — any flag within 5 seconds of the last is ignored if {antidupe::last-flag-time::%{_p}%} is set: if difference between {antidupe::last-flag-time::%{_p}%} and now < 5 seconds: stop set {antidupe::last-flag::%{_p}%} to {_reason} set {antidupe::last-flag-time::%{_p}%} to now add 1 to {antidupe::strikes::%{_p}%} set {_strikes} to {antidupe::strikes::%{_p}%} set {_locStr} to "%location of {_p}%" # Log to file (native Skript — no addon required) log "[AntiDupe] PLAYER: %{_p}% | UUID: %uuid of {_p}% | REASON: %{_reason}% | LOCATION: %{_locStr}% | STRIKES: %{_strikes}%" to "plugins/Skript/AntiDupeMachine/dupe-log.txt" # Punishment escalation — ban takes priority, checked first if {_strikes} >= {@strikes-before-ban}: send "{@prefix} {@color-bad}You have been banned for repeated dupe machine usage." to {_p} # Clean up strike data after ban to prevent memory accumulation delete {antidupe::strikes::%{_p}%} wait 1 tick if {@ban-duration} is 0: ban {_p} due to "AntiDupeMachine: Repeated duplication machine usage." else: set {_banSeconds} to {@ban-duration} * 60 ban {_p} for {_banSeconds} seconds due to "AntiDupeMachine: Repeated duplication machine usage." stop if {_strikes} >= {@strikes-before-kick}: send "{@prefix} {@color-bad}You have been kicked. Further violations will result in a ban." to {_p} # Alert admins before kicking so the message is seen antidupe_alertAdmins({_p}, {_reason}, {_locStr}, {_strikes}) wait 1 tick kick {_p} with reason "AntiDupeMachine: Dupe machine usage (%{_reason}%). Strike %{_strikes}%/{@strikes-before-ban}." stop # Warning (below kick threshold) send "{@prefix} {@color-warn}&lWARNING: &r{@color-warn}Suspicious activity detected: &f%{_reason}%." to {_p} send "{@prefix} {@color-info}Strike %{_strikes}%/{@strikes-before-ban}. Continued violations will result in punishment." to {_p} antidupe_alertAdmins({_p}, {_reason}, {_locStr}, {_strikes}) # ============================================================ # ADMIN ALERT HELPER # Extracted from antidupe_flag so it can be called before # a kick (player must receive kick message before disconnect). # Loops all online players — valid in a function context. # ============================================================ function antidupe_alertAdmins(p: player, reason: text, loc: text, strikes: integer): if {@admin-alerts} is not true: stop loop all players: if loop-player has permission "{@admin-permission}": send "{@prefix} {@color-bad}[ALERT] &f%{_p}% {@color-bad}flagged: &f%{_reason}% {@color-bad}at &f%{_loc}% &7(Strike %{_strikes}%/{@strikes-before-ban})" to loop-player # ============================================================ # ADMIN COMMANDS # /antidupe toggle # /antidupe status # /antidupe whitelist # /antidupe strikes # /antidupe reset # ============================================================ command /antidupe [] []: permission: antidupe.admin permission message: {@prefix} &cYou don't have permission to use this command. trigger: if arg-1 is not set: antidupe_sendHelp(player) stop # TOGGLE if arg-1 is "toggle": if {antidupe::enabled} is true: set {antidupe::enabled} to false send "{@prefix} {@color-bad}Detection has been &lDISABLED&r{@color-bad}." to player else: set {antidupe::enabled} to true send "{@prefix} {@color-good}Detection has been &lENABLED&r{@color-good}." to player stop # STATUS if arg-1 is "status": send "{@prefix} &fDetection active: &e%{antidupe::enabled}%" to player send "{@prefix} &fContainer threshold: &e{@container-threshold}&f opens / &e{@container-window}&fs" to player send "{@prefix} &fInv-click threshold: &e{@inventory-click-threshold}&f clicks / &e{@inventory-click-window}&fs" to player send "{@prefix} &fDropper chain threshold: &e{@dropper-chain-threshold}&f blocks" to player send "{@prefix} &fStrikes to kick: &e{@strikes-before-kick} &f| to ban: &e{@strikes-before-ban}" to player send "{@prefix} &fBan duration: &e{@ban-duration}&f min (0 = permanent)" to player stop # WHITELIST TOGGLE if arg-1 is "whitelist": if arg-2 is not set: send "{@prefix} &cUsage: /antidupe whitelist " to player stop set {_target} to player named arg-2 if {_target} is not set: send "{@prefix} &cPlayer &f%arg-2%&c is not online. Whitelist requires an online player." to player stop if {antidupe::whitelist::%{_target}%} is true: delete {antidupe::whitelist::%{_target}%} send "{@prefix} {@color-warn}Removed &f%{_target}%&e from the whitelist." to player else: set {antidupe::whitelist::%{_target}%} to true send "{@prefix} {@color-good}Added &f%{_target}%&a to the whitelist." to player stop # VIEW STRIKES if arg-1 is "strikes": if arg-2 is not set: send "{@prefix} &cUsage: /antidupe strikes " to player stop set {_target} to player named arg-2 if {_target} is not set: send "{@prefix} &cPlayer &f%arg-2%&c is not online." to player stop set {_s} to {antidupe::strikes::%{_target}%} if {_s} is not set: set {_s} to 0 send "{@prefix} &f%{_target}% &7has &e%{_s}% &7strike(s)." to player stop # RESET STRIKES if arg-1 is "reset": if arg-2 is not set: send "{@prefix} &cUsage: /antidupe reset " to player stop set {_target} to player named arg-2 if {_target} is not set: send "{@prefix} &cPlayer &f%arg-2%&c is not online." to player stop delete {antidupe::strikes::%{_target}%} send "{@prefix} {@color-good}Reset strikes for &f%{_target}%&a." to player stop # FALLBACK antidupe_sendHelp(player) function antidupe_sendHelp(p: player): send "" to {_p} send "{@prefix} &6&lAntiDupeMachine &7\/u2014 Commands:" to {_p} send " &e/antidupe toggle &7- Enable or disable all detection" to {_p} send " &e/antidupe status &7- View current thresholds and config" to {_p} send " &e/antidupe whitelist &7- Toggle whitelist for an online player" to {_p} send " &e/antidupe strikes &7- View a player's strike count" to {_p} send " &e/antidupe reset &7- Reset a player's strikes" to {_p} send "" to {_p}