2 files changed, 41 insertions, 38 deletions

diff --git a/src/main/java/gregtech/common/covers/GT_Cover_LiquidMeter.java b/src/main/java/gregtech/common/covers/GT_Cover_LiquidMeter.java
index ce795bdd09..7816e3dd48 100644
--- a/src/main/java/gregtech/common/covers/GT_Cover_LiquidMeter.java
+++ b/src/main/java/gregtech/common/covers/GT_Cover_LiquidMeter.java
@@ -53,58 +53,54 @@ public class GT_Cover_LiquidMeter extends GT_CoverBehaviorBase<GT_Cover_LiquidMe
         return false;
     }
 
-    @Override
-    protected LiquidMeterData doCoverThingsImpl(
-            byte aSide,
-            byte aInputRedstone,
-            int aCoverID,
-            LiquidMeterData aCoverVariable,
-            ICoverable aTileEntity,
-            long aTimer) {
-        if ((aTileEntity instanceof IFluidHandler)) {
-            FluidTankInfo[] tTanks = ((IFluidHandler) aTileEntity).getTankInfo(ForgeDirection.UNKNOWN);
-            long tMax = 0;
-            long tUsed = 0;
-            if (tTanks != null) {
-                for (FluidTankInfo tTank : tTanks) {
-                    if (tTank != null) {
-                        tMax += tTank.capacity;
-                        FluidStack tLiquid = tTank.fluid;
+    public static byte computeSignalBasedOnFluid(ICoverable tileEntity, boolean inverted, int threshold) {
+        if (tileEntity instanceof IFluidHandler) {
+            FluidTankInfo[] tanks = ((IFluidHandler) tileEntity).getTankInfo(ForgeDirection.UNKNOWN);
+            long max = 0;
+            long used = 0;
+            if (tanks != null) {
+                for (FluidTankInfo tank : tanks) {
+                    if (tank != null) {
+                        max += tank.capacity;
+                        FluidStack tLiquid = tank.fluid;
                         if (tLiquid != null) {
-                            tUsed += tLiquid.amount;
+                            used += tLiquid.amount;
                         }
                     }
                 }
             }
 
-            long redstoneSignal;
-            if (tUsed == 0L) {
-                // nothing
-                redstoneSignal = 0;
-            } else if (tUsed >= tMax) {
-                // full
-                redstoneSignal = 15;
-            } else {
-                // 1-14 range
-                redstoneSignal = 1 + (14 * tUsed) / tMax;
-            }
+            byte signal = GT_Utility.convertRatioToRedstone(used, max);
 
-            if (aCoverVariable.inverted) {
-                redstoneSignal = 15 - redstoneSignal;
+            if (inverted) {
+                signal = (byte) (15 - signal);
             }
 
-            if (aCoverVariable.threshold > 0) {
-                if (aCoverVariable.inverted && tUsed >= aCoverVariable.threshold) {
-                    redstoneSignal = 0;
-                } else if (!aCoverVariable.inverted && tUsed < aCoverVariable.threshold) {
-                    redstoneSignal = 0;
+            if (threshold > 0) {
+                if (inverted && used >= threshold) {
+                    return 0;
+                } else if (!inverted && used < threshold) {
+                    return 0;
                 }
             }
 
-            aTileEntity.setOutputRedstoneSignal(aSide, (byte) redstoneSignal);
+            return signal;
         } else {
-            aTileEntity.setOutputRedstoneSignal(aSide, (byte) 0);
+            return 0;
         }
+    }
+
+    @Override
+    protected LiquidMeterData doCoverThingsImpl(
+            byte aSide,
+            byte aInputRedstone,
+            int aCoverID,
+            LiquidMeterData aCoverVariable,
+            ICoverable aTileEntity,
+            long aTimer) {
+        byte signal = computeSignalBasedOnFluid(aTileEntity, aCoverVariable.inverted, aCoverVariable.threshold);
+        aTileEntity.setOutputRedstoneSignal(aSide, signal);
+
         return aCoverVariable;
     }
 
diff --git a/src/main/java/gregtech/common/covers/redstone/GT_Cover_WirelessFluidDetector.java b/src/main/java/gregtech/common/covers/redstone/GT_Cover_WirelessFluidDetector.java
index f7b7444577..163136cb45 100644
--- a/src/main/java/gregtech/common/covers/redstone/GT_Cover_WirelessFluidDetector.java
+++ b/src/main/java/gregtech/common/covers/redstone/GT_Cover_WirelessFluidDetector.java
@@ -1,11 +1,13 @@
 package gregtech.common.covers.redstone;
 
 import com.google.common.io.ByteArrayDataInput;
+import gregtech.api.GregTech_API;
 import gregtech.api.gui.widgets.GT_GuiIntegerTextBox;
 import gregtech.api.interfaces.ITexture;
 import gregtech.api.interfaces.tileentity.ICoverable;
 import gregtech.api.util.GT_Utility;
 import gregtech.api.util.ISerializableObject;
+import gregtech.common.covers.GT_Cover_LiquidMeter;
 import io.netty.buffer.ByteBuf;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.EntityPlayerMP;
@@ -35,6 +37,10 @@ public class GT_Cover_WirelessFluidDetector extends GT_Cover_AdvancedRedstoneTra
     @Override
     public FluidTransmitterData doCoverThingsImpl(byte aSide, byte aInputRedstone, int aCoverID,
                                                   FluidTransmitterData aCoverVariable, ICoverable aTileEntity, long aTimer) {
+        byte signal = GT_Cover_LiquidMeter.computeSignalBasedOnFluid(aTileEntity, aCoverVariable.invert, aCoverVariable.threshold);
+        long hash = GregTech_API.hashCoverCoords(aTileEntity, aSide);
+        setSignalAt(aCoverVariable.getUuid(), aCoverVariable.getFrequency(), hash, signal);
+
         return aCoverVariable;
     }
 
@@ -51,6 +57,7 @@ public class GT_Cover_WirelessFluidDetector extends GT_Cover_AdvancedRedstoneTra
     }
 
     public static class FluidTransmitterData extends GT_Cover_AdvancedRedstoneTransmitterBase.TransmitterData {
+        /** The special value {@code 0} means threshold check is disabled. */
         private int threshold;
 
         public FluidTransmitterData(int frequency, UUID uuid, boolean invert, int threshold) {