1 files changed, 119 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/metatileentity/TileIC2EnergySink.java b/src/main/java/gregtech/api/metatileentity/TileIC2EnergySink.java
new file mode 100644
index 0000000000..6fecb840b4
--- /dev/null
+++ b/src/main/java/gregtech/api/metatileentity/TileIC2EnergySink.java
@@ -0,0 +1,119 @@
+package gregtech.api.metatileentity;
+
+import net.minecraft.tileentity.TileEntity;
+import net.minecraftforge.common.util.ForgeDirection;
+
+import com.google.common.collect.Sets;
+
+import gregtech.api.interfaces.metatileentity.IConnectable;
+import gregtech.api.interfaces.metatileentity.IMetaTileEntity;
+import gregtech.api.interfaces.metatileentity.IMetaTileEntityCable;
+import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
+import gregtech.api.metatileentity.implementations.GT_MetaPipeEntity_Cable;
+import gregtech.api.util.GT_Utility;
+import ic2.api.energy.tile.IEnergySink;
+
+public class TileIC2EnergySink extends TileEntity implements IEnergySink {
+
+    private final IGregTechTileEntity myMeta;
+    private GT_MetaPipeEntity_Cable cableMeta = null;
+
+    public TileIC2EnergySink(IGregTechTileEntity meta) {
+        if (meta == null) throw new NullPointerException("no null metas");
+        myMeta = meta;
+        final IMetaTileEntity metaTile = myMeta.getMetaTileEntity();
+        if (metaTile instanceof IMetaTileEntityCable) {
+            cableMeta = (GT_MetaPipeEntity_Cable) metaTile;
+        }
+        setWorldObj(meta.getWorld());
+        xCoord = meta.getXCoord();
+        yCoord = meta.getYCoord();
+        zCoord = meta.getZCoord();
+    }
+    /*
+     * IC2 enet compat - IEnergySink
+     */
+
+    /**
+     * Determine how much energy the sink accepts. Note that you cannot modify the energy net from this method.
+     * <p>
+     * Make sure that {@link TileIC2EnergySink#injectEnergy} accepts energy if this function returns anything positive.
+     *
+     * @return max accepted input in eu
+     */
+    @Override
+    public double getDemandedEnergy() {
+        if (cableMeta != null) {
+            /*
+             * We don't want everything to join the enet, treating the cable as a conductor, so we join it as a link.
+             * We don't want to traverse all cables connected to this, like we would during distribution, to see if it
+             * actually needs any EU, so we just always say we want it all. If there are more than two things attached
+             * and one of them is a GT cable that doesn't have anywhere to send its energy, the distribution will be a
+             * bit weird. In that case, use only one cable or a transformer.
+             */
+            return (cableMeta.mVoltage * cableMeta.mAmperage);
+        } else return myMeta.getEUCapacity() - myMeta.getStoredEU();
+    }
+
+    /**
+     * Gets the tier of this energy sink. 1 = LV, 2 = MV, 3 = HV, 4 = EV etc.
+     *
+     * @return tier of this energy sink or {@link Integer#MAX_VALUE} to allow any voltage
+     */
+    @Override
+    public int getSinkTier() {
+        return GT_Utility.getTier(cableMeta != null ? cableMeta.mVoltage : myMeta.getInputVoltage());
+    }
+
+    /**
+     * Transfer energy to the sink.
+     * <p>
+     * It's highly recommended to accept all energy by letting the internal buffer overflow to increase the performance
+     * and accuracy of the distribution simulation.
+     *
+     * @param directionFrom direction from which the energy comes from
+     * @param amount        energy to be transferred
+     * @return Energy not consumed (leftover)
+     */
+    @Override
+    public double injectEnergy(ForgeDirection directionFrom, double amount, double voltage) {
+
+        final long amps = (long) Math
+            .max(amount / (cableMeta != null ? cableMeta.mVoltage : myMeta.getInputVoltage() * 1.0), 1.0);
+        final long euPerAmp = (long) (amount / (amps * 1.0));
+
+        final IMetaTileEntity metaTile = myMeta.getMetaTileEntity();
+        if (metaTile == null) return amount;
+
+        final long usedAmps;
+        if (cableMeta != null) {
+            usedAmps = ((IMetaTileEntityCable) metaTile).transferElectricity(
+                directionFrom,
+                Math.min(euPerAmp, cableMeta.mVoltage),
+                amps,
+                Sets.newHashSet((TileEntity) myMeta));
+
+        } else usedAmps = myMeta.injectEnergyUnits(directionFrom, Math.min(euPerAmp, myMeta.getInputVoltage()), amps);
+        return amount - (usedAmps * euPerAmp);
+
+        // transferElectricity for cables
+    }
+
+    /**
+     * Determine if this acceptor can accept current from an adjacent emitter in a direction.
+     * <p>
+     * The TileEntity in the emitter parameter is what was originally added to the energy net, which may be normal
+     * in-world TileEntity, a delegate or an IMetaDelegate.
+     *
+     * @param emitter   energy emitter, may also be null or an IMetaDelegate
+     * @param direction direction the energy is being received from
+     */
+    @Override
+    public boolean acceptsEnergyFrom(TileEntity emitter, ForgeDirection direction) {
+        final IMetaTileEntity metaTile = myMeta.getMetaTileEntity();
+        if (metaTile instanceof IMetaTileEntityCable
+            && (direction == ForgeDirection.UNKNOWN || ((IConnectable) metaTile).isConnectedAtSide(direction)))
+            return true;
+        else return myMeta.inputEnergyFrom(direction, false);
+    }
+}