Remove some anti-cheat checks

src/main/java/github/totorewa/rugserver/mixin/feature/anticheat/ServerPlayNetworkHandlerMixin.java

@@ -0,0 +1,48 @@
+package github.totorewa.rugserver.mixin.feature.anticheat;
+
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraft.network.packet.c2s.play.ChatMessageC2SPacket;
+import net.minecraft.network.packet.c2s.play.PlayerMoveC2SPacket;
+import net.minecraft.server.network.ServerPlayNetworkHandler;
+import org.objectweb.asm.Opcodes;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.*;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ServerPlayNetworkHandler.class)
+public class ServerPlayNetworkHandlerMixin {
+    @Shadow
+    private int field_8932;
+
+    @Shadow
+    private int messageCooldown;
+
+    @ModifyConstant(method = "onPlayerAction", constant = @Constant(doubleValue = 36.0))
+    private double overrideReachLimit(double constant) {
+        return Double.MAX_VALUE;
+    }
+
+    @ModifyConstant(method = "onPlayerMove", constant = @Constant(doubleValue = 0.0625))
+    private double overrideMovementLimit(double constant) {
+        return Double.MAX_VALUE;
+    }
+
+    @Redirect(method = "onPlayerMove", at = @At(
+            value = "FIELD",
+            target = "Lnet/minecraft/entity/player/ServerPlayerEntity;noClip:Z",
+            opcode = Opcodes.GETFIELD))
+    private boolean allowClipping(ServerPlayerEntity instance) {
+        return true;
+    }
+
+    @Inject(method = "onPlayerMove", at = @At("HEAD"))
+    private void relaxMovement(PlayerMoveC2SPacket packet, CallbackInfo ci) {
+        if (field_8932 > 79) field_8932--;
+    }
+
+    @Inject(method = "onChatMessage", at = @At("TAIL"))
+    private void relaxChatSpam(ChatMessageC2SPacket packet, CallbackInfo ci) {
+        messageCooldown = 0;
+    }
+}

src/main/java/github/totorewa/rugserver/mixin/feature/anticheat/ServerPlayerInteractionManagerMixin.java

@@ -0,0 +1,14 @@
+package github.totorewa.rugserver.mixin.feature.anticheat;
+
+import net.minecraft.server.network.ServerPlayerInteractionManager;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+
+@Mixin(ServerPlayerInteractionManager.class)
+public class ServerPlayerInteractionManagerMixin {
+    @ModifyConstant(method = "method_10764", constant = @Constant(floatValue = 0.7f))
+    private float relaxBlockBreakTime(float constant) {
+        return 0.0f;
+    }
+}

src/main/resources/rugserver.mixins.json

@@ -6,6 +6,8 @@
   "server": [
     "commands.CommandManagerMixin",
     "commands.ServerPlayerEntityMixin",
+    "feature.anticheat.ServerPlayerInteractionManagerMixin",
+    "feature.anticheat.ServerPlayNetworkHandlerMixin",
     "feature.cameramode.ServerPlayerEntityMixin",
     "feature.carefulbreak.BlockMixin",
     "feature.carefulbreak.ServerPlayerInteractionManagerMixin",