allow configuring reach flag buffer

Author: ManInMyVan

src/main/java/ac/grim/grimac/checks/impl/combat/Reach.java

@@ -52,7 +52,11 @@ public class Reach extends Check implements PacketCheck {
 
     private boolean cancelImpossibleHits;
     private double threshold;
-    private double cancelBuffer; // For the next 4 hits after using reach, we aggressively cancel reach
+
+    private double flagBufferMax = 1;
+    private double flagBufferIncrement = 1;
+    private double flagBufferDecay = 0.25;
+    private double flagBuffer; // For the next 4 hits after using reach, we aggressively cancel reach
 
     public Reach(GrimPlayer player) {
         super(player);
@@ -129,7 +133,7 @@ private boolean isKnownInvalid(PacketEntity reachEntity) {
         if (player.compensatedEntities.getSelf().inVehicle()) return false;
 
         // Filter out what we assume to be cheats
-        if (cancelBuffer != 0) {
+        if (flagBuffer > 0) {
             return checkReach(reachEntity, new Vector3d(player.x, player.y, player.z), true) != null; // If they flagged
         } else {
             SimpleCollisionBox targetBox = reachEntity.getPossibleCollisionBoxes();
@@ -223,13 +227,13 @@ private String checkReach(PacketEntity reachEntity, Vector3d from, boolean isPre
         // if the entity is not exempt and the entity is alive
         if ((!blacklisted.contains(reachEntity.getType()) && reachEntity.isLivingEntity()) || reachEntity.getType() == EntityTypes.END_CRYSTAL) {
             if (minDistance == Double.MAX_VALUE) {
-                cancelBuffer = 1;
+                flagBuffer = Math.min(flagBuffer + flagBufferIncrement, flagBufferMax);
                 return "Missed hitbox";
             } else if (minDistance > player.compensatedEntities.getSelf().getAttributeValue(Attributes.ENTITY_INTERACTION_RANGE)) {
-                cancelBuffer = 1;
+                flagBuffer = Math.min(flagBuffer + flagBufferIncrement, flagBufferMax);
                 return String.format("%.5f", minDistance) + " blocks";
             } else {
-                cancelBuffer = Math.max(0, cancelBuffer - 0.25);
+                flagBuffer = Math.max(0, flagBuffer - flagBufferDecay);
             }
         }
 
@@ -238,7 +242,15 @@ private String checkReach(PacketEntity reachEntity, Vector3d from, boolean isPre
 
     @Override
     public void onReload(ConfigManager config) {
-        this.cancelImpossibleHits = config.getBooleanElse("Reach.block-impossible-hits", true);
-        this.threshold = config.getDoubleElse("Reach.threshold", 0.0005);
+        this.cancelImpossibleHits = config.getBooleanElse(getConfigName() + ".block-impossible-hits", true);
+        this.threshold = config.getDoubleElse(getConfigName() + ".threshold", 0.0005);
+
+        this.flagBufferMax = config.getDoubleElse(getConfigName() + ".flag-buffer-max", 1);
+        this.flagBufferIncrement = config.getDoubleElse(getConfigName() + ".flag-buffer-increment", 1);
+        this.flagBufferDecay = config.getDoubleElse(getConfigName() + ".flag-buffer-decay", 0.25);
+
+        if (this.flagBufferMax == -1) {
+            this.flagBufferMax = Double.MAX_VALUE;
+        }
     }
 }

src/main/resources/config/de.yml

@@ -155,6 +155,9 @@ Reach:
   # Bleibt diese Funktion deaktiviert, werden immer noch Cheater erwischt und es kommt nicht zu Fehlalarmen.
   # Sofern es sich nicht um einen 1.8 PvP-Server handelt, wird dieses zusätzliche Paket nicht empfohlen.
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   allow-sprint-jumping-when-using-elytra: true

src/main/resources/config/en.yml

@@ -155,6 +155,9 @@ Reach:
   # Leaving this disabled will still catch cheaters and will not cause false positives
   # Unless you are a 1.8 PvP focused server, this additional packet is not recommended
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   # You can gain high speeds when sprint jumping with an elytra, this prevents the exploit when set to false

src/main/resources/config/es.yml

@@ -161,6 +161,9 @@ Reach:
   # Dejar esto deshabilitado también encontrara a jugadores haciendo trampa y no causara falsos positivos.
   # Excepto que seas un servidor 1.8 enfocado en el PvP, este paquete adicional no es recomendado.
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   allow-sprint-jumping-when-using-elytra: true

src/main/resources/config/fr.yml

@@ -156,6 +156,9 @@ Reach:
   # Laisser cette fonctionnalité désactivée permettra tout de même de détecter les tricheurs et n'entraînera pas de faux positifs.
   # À moins d'être un serveur axé sur le PvP en 1.8, l'envoi de ce paquet supplémentaire n'est pas recommandé.
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   allow-sprint-jumping-when-using-elytra: true

src/main/resources/config/it.yml

@@ -135,6 +135,9 @@ Reach:
   block-impossible-hits: true
   # Abilita l'invio di pacchetti aggiuntivi per il rilevamento degli attacchi
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   # Abilita il salto in sprint con l'elytra

src/main/resources/config/nl.yml

@@ -155,6 +155,9 @@ Reach:
   # Als je dit uitgeschakeld laat, worden nog steeds valsspelers gepakt en zullen er geen valse positieven ontstaan
   # Tenzij je een 1.8 PvP server bent, wordt dit extra pakket niet aangeraden
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   # Je kunt hoge snelheden krijgen als je sprint met een elytra, dit voorkomt de exploit als het op false staat

src/main/resources/config/pt.yml

@@ -159,6 +159,9 @@ Reach:
   # Deixando-o desabilitado, continuará detectando trapaceiros e não irá causar falsos positivos.
   # A menos que estiver em um servidor focado em PvP, esse pacote adicional não é recomendado.
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   # Você pode ganhar altas velocidades se pular correndo com uma elytra, previne isso de ocorrer quando definido falso.

src/main/resources/config/ru.yml

@@ -156,6 +156,9 @@ Reach:
   # Если оставить эту функцию отключенной, читеры все равно будут отлавливаться и не будут вызывать ложных срабатываний.
   # Если вы не являетесь PvP-сервером 1.8, этот дополнительный пакет не рекомендуется.
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   allow-sprint-jumping-when-using-elytra: true

src/main/resources/config/zh.yml

@@ -156,6 +156,9 @@ Reach:
   # 禁用此功能仍会捕获作弊者，不会导致误报
   # 除非你是专注于 1.8 PvP 的服务器，否则不建议使用这个额外的数据包
   enable-post-packet: false
+  flag-buffer-max: 1 # set to -1 to disable
+  flag-buffer-increment: 1
+  flag-buffer-decay: 0.25
 
 exploit:
   #是否允许玩家在使用鞘翅时候进行的疾跑跳跃