1 files changed, 102 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/net/GT_Packet_SetConfigurationCircuit.java b/src/main/java/gregtech/api/net/GT_Packet_SetConfigurationCircuit.java
new file mode 100644
index 0000000000..aeb183a02c
--- /dev/null
+++ b/src/main/java/gregtech/api/net/GT_Packet_SetConfigurationCircuit.java
@@ -0,0 +1,102 @@
+package gregtech.api.net;
+
+import com.google.common.io.ByteArrayDataInput;
+import cpw.mods.fml.common.network.ByteBufUtils;
+import gregtech.api.interfaces.metatileentity.IMetaTileEntity;
+import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
+import gregtech.api.metatileentity.implementations.GT_MetaTileEntity_BasicMachine;
+import gregtech.api.util.GT_Utility;
+import gregtech.api.util.ISerializableObject;
+import io.netty.buffer.ByteBuf;
+import net.minecraft.item.ItemStack;
+import net.minecraft.network.INetHandler;
+import net.minecraft.network.NetHandlerPlayServer;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.world.IBlockAccess;
+import net.minecraft.world.World;
+import net.minecraftforge.common.DimensionManager;
+
+/**
+ * Client -> Server: Update machine configuration data
+ */
+
+public class GT_Packet_SetConfigurationCircuit extends GT_Packet_New {
+    protected int mX;
+    protected short mY;
+    protected int mZ;
+    protected int dimId;
+
+    protected ItemStack circuit;
+
+    public GT_Packet_SetConfigurationCircuit() {
+        super(true);
+    }
+
+    public GT_Packet_SetConfigurationCircuit(IGregTechTileEntity tile, ItemStack circuit) {
+        this(tile.getXCoord(), tile.getYCoord(), tile.getZCoord(), circuit);
+    }
+
+    public GT_Packet_SetConfigurationCircuit(int x, short y, int z, ItemStack circuit) {
+        super(false);
+
+        this.mX = x;
+        this.mY = y;
+        this.mZ = z;
+
+        this.circuit = circuit;
+    }
+
+    @Override
+    public byte getPacketID() {
+        return 12;
+    }
+
+    @Override
+    public void encode(ByteBuf aOut) {
+        aOut.writeInt(mX);
+        aOut.writeShort(mY);
+        aOut.writeInt(mZ);
+
+        // no null check needed. ByteBufUtils will handle it
+        ByteBufUtils.writeItemStack(aOut, this.circuit);
+    }
+
+    @Override
+    public void setINetHandler(INetHandler aHandler) {
+        if (aHandler instanceof NetHandlerPlayServer) {
+            dimId = ((NetHandlerPlayServer) aHandler).playerEntity.dimension;
+        } else {
+            // packet sent to wrong side, so we need to ignore this one
+            // but there is no way to disrupt packet pipeline
+            // so we will instead go find world -2, which (hopefully) doesn't exist
+            // then we will fail silently in process()
+            dimId = -2;
+        }
+    }
+
+    @Override
+    public GT_Packet_New decode(ByteArrayDataInput aData) {
+        return new GT_Packet_SetConfigurationCircuit(
+                aData.readInt(),
+                aData.readShort(),
+                aData.readInt(),
+
+                ISerializableObject.readItemStackFromGreggyByteBuf(aData));
+    }
+
+    @Override
+    public void process(IBlockAccess aWorld) {
+        World world = DimensionManager.getWorld(dimId);
+        if (world == null) return;
+        TileEntity tile = world.getTileEntity(mX, mY, mZ);
+        if (!(tile instanceof IGregTechTileEntity) || ((IGregTechTileEntity) tile).isDead()) return;
+        IMetaTileEntity mte = ((IGregTechTileEntity) tile).getMetaTileEntity();
+        if (!(mte instanceof GT_MetaTileEntity_BasicMachine)) return;
+        GT_MetaTileEntity_BasicMachine machine = (GT_MetaTileEntity_BasicMachine) mte;
+        if (!machine.allowSelectCircuit()) return;
+        machine.getConfigurationCircuits().stream()
+                .filter(stack -> GT_Utility.areStacksEqual(stack, circuit))
+                .findFirst()
+                .ifPresent(stack -> mte.setInventorySlotContents(machine.getCircuitSlot(), stack));
+    }
+}