Add Waila Pipe info

src/main/java/gregtech/api/metatileentity/implementations/MTEFluid.java

@@ -29,6 +29,7 @@
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.AxisAlignedBB;
 import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.StatCollector;
 import net.minecraft.world.World;
 import net.minecraftforge.common.util.ForgeDirection;
 import net.minecraftforge.fluids.FluidStack;
@@ -67,6 +68,8 @@
 import gregtech.common.covers.CoverDrain;
 import gregtech.common.covers.CoverFluidRegulator;
 import gregtech.common.covers.CoverInfo;
+import mcp.mobius.waila.api.IWailaConfigHandler;
+import mcp.mobius.waila.api.IWailaDataAccessor;
 
 public class MTEFluid extends MetaPipeEntity {
 
@@ -931,6 +934,43 @@ public FluidStack drain(ForgeDirection side, FluidStack aFluid, boolean doDrain)
         return null;
     }
 
+    @Override
+    public void getWailaBody(ItemStack itemStack, List<String> currenttip, IWailaDataAccessor accessor,
+        IWailaConfigHandler config) {
+
+        // Basic pipe stats
+        currenttip.add(
+            StatCollector.translateToLocal("GT5U.item.pipe.capacity") + ": "
+                + EnumChatFormatting.BLUE
+                + GTUtility.formatNumbers(mCapacity * 20L)
+                + " L/s");
+
+        currenttip.add(
+            StatCollector.translateToLocal("GT5U.item.pipe.heat_resistance") + ": "
+                + EnumChatFormatting.RED
+                + GTUtility.formatNumbers(mHeatResistance)
+                + "K");
+
+        // Gas handling info
+        if (mGasProof) {
+            currenttip.add(
+                StatCollector.translateToLocal("GT5U.item.pipe.gas_proof") + ": "
+                    + EnumChatFormatting.GREEN
+                    + StatCollector.translateToLocal("GT5U.item.pipe.gas_proof.yes"));
+        } else {
+            currenttip.add(
+                StatCollector.translateToLocal("GT5U.item.pipe.gas_proof") + ": "
+                    + EnumChatFormatting.RED
+                    + StatCollector.translateToLocal("GT5U.item.pipe.gas_proof.no"));
+        }
+
+        // Multi-pipe info
+        if (mPipeAmount > 1) {
+            currenttip.add(
+                StatCollector.translateToLocal("GT5U.item.pipe.amount") + ": " + EnumChatFormatting.AQUA + mPipeAmount);
+        }
+    }
+
     private static EnumMap<Border, ForgeDirection> borderMap(ForgeDirection topSide, ForgeDirection bottomSide,
         ForgeDirection leftSide, ForgeDirection rightSide) {
         final EnumMap<Border, ForgeDirection> sideMap = new EnumMap<>(Border.class);

src/main/resources/assets/gregtech/lang/en_US.lang

@@ -681,6 +681,14 @@ GT5U.item.cable.loss=Loss/Meter/Ampere
 GT5U.item.cable.eu_volt=EU-Volt
 GT5U.item.tank.locked_to=Content locked to %s
 
+GT5U.item.pipe.capacity=Capacity
+GT5U.item.pipe.heat_resistance=Heat Resistance
+GT5U.item.pipe.gas_proof=Gas Proof
+GT5U.item.pipe.gas_proof.yes=Yes
+GT5U.item.pipe.gas_proof.no=No
+GT5U.item.pipe.amount=Pipe Amount
+GT5U.item.pipe.empty=Empty
+
 gt.behaviour.paintspray.infinite.gui.header=Select a Color
 gt.behaviour.paintspray.infinite.gui.lock_error=§eSpray can is §clocked§e! §bSneak middle-click to unlock.
 gt.behaviour.paintspray.infinite.gui.solvent=Solvent