Fix chained world block exporter/exporter not able to work every tick

This is done by making the exporter/importer sleep optimization only
take effect if these parts were unable to move anything for at least
three ticks.

Closes #319

src/main/java/org/cyclops/integratedtunnels/GeneralConfig.java

@@ -19,6 +19,8 @@ public class GeneralConfig extends DummyConfig {
     @ConfigurableProperty(category = "core", comment = "If the version checker should be enabled.")
     public static boolean versionChecker = true;
 
+    @ConfigurableProperty(category = "core", comment = "For how many ticks importers/exporters should fail to process before they can start sleeping.", configLocation = ModConfig.Type.SERVER)
+    public static int inventoryUnchangedTickCount = 3;
     @ConfigurableProperty(category = "core", comment = "How many ticks importers/exporters should sleep until checking targets again when they were previously unchanged.", configLocation = ModConfig.Type.SERVER)
     public static int inventoryUnchangedTickTimeout = 10;
 

src/main/java/org/cyclops/integratedtunnels/core/ExtendedFakePlayer.java

@@ -91,6 +91,6 @@ public void updateActiveHandSimulated() {
 
     @Override
     public void startSleeping(BlockPos blockPos) {
-        // Dp nothing
+        // Do nothing
     }
 }

src/main/java/org/cyclops/integratedtunnels/core/TunnelHelpers.java

@@ -45,7 +45,7 @@
  */
 public class TunnelHelpers {
 
-    private static final Cache<ITunnelConnection, Boolean> CACHE_INV_CHECKS = CacheBuilder.newBuilder()
+    private static final Cache<ITunnelConnection, Integer> CACHE_INV_CHECKS = CacheBuilder.newBuilder()
             .expireAfterWrite(GeneralConfig.inventoryUnchangedTickTimeout * (1000 / MinecraftHelpers.SECOND_IN_TICKS),
                     TimeUnit.MILLISECONDS).build();
 
@@ -149,15 +149,18 @@ public static <T, M> T moveSingleStateOptimized(INetwork network, IPositionedAdd
         }
 
         // Don't do anything if we are sleeping for this connection
-        if (CACHE_INV_CHECKS.getIfPresent(connection) != null) {
+        Integer sleepCheck = CACHE_INV_CHECKS.getIfPresent(connection);
+        if (sleepCheck != null && sleepCheck >= GeneralConfig.inventoryUnchangedTickCount) {
             return matcher.getEmptyInstance();
         }
 
         // Do the actual movement
         T moved = moveSingle(source, sourceSlot, destination, destinationSlot, ingredientPredicate, movementPosition, false);
         if (matcher.isEmpty(moved)) {
             // Mark this connection as 'sleeping' if nothing was moved
-            CACHE_INV_CHECKS.put(connection, true);
+            CACHE_INV_CHECKS.put(connection, sleepCheck == null ? 1 : sleepCheck + 1);
+        } else if (sleepCheck != null) {
+            CACHE_INV_CHECKS.invalidate(connection);
         }
 
         // Schedule a new observation for the network, as its contents may have changed