feat: power relay base tile impl

reference issue: #6

src/main/java/appeng/block/legacy/BlockPowerRelay.java

@@ -0,0 +1,18 @@
+package appeng.block.legacy;
+
+import java.util.EnumSet;
+
+import appeng.block.AEBaseTileBlock;
+import appeng.core.features.AEFeature;
+import appeng.tile.legacy.TilePowerRelay;
+import net.minecraft.block.material.Material;
+
+public class BlockPowerRelay extends AEBaseTileBlock {
+
+    public BlockPowerRelay() {
+        super(Material.iron);
+        this.setTileEntity(TilePowerRelay.class);
+        this.setFeature(EnumSet.of(AEFeature.Legacy));
+    }
+    
+}

src/main/java/appeng/core/api/definitions/ApiBlocks.java

@@ -38,6 +38,7 @@ import appeng.block.legacy.BlockCraftTerminal;
 import appeng.block.legacy.BlockLegacyChest;
 import appeng.block.legacy.BlockLegacyController;
 import appeng.block.legacy.BlockPatternEncoder;
+import appeng.block.legacy.BlockPowerRelay;
 import appeng.block.legacy.BlockStorageMonitor;
 import appeng.block.legacy.BlockTerminal;
 import appeng.block.legacy.BlockTransitionPlane;
@@ -153,6 +154,7 @@ public final class ApiBlocks implements IBlocks {
     private final ITileDefinition assemblerHeatVent;
     private final ITileDefinition assemblerCraftingAccelerator;
     private final ITileDefinition legacyChest;
+    private final ITileDefinition powerRelay;
 
     public ApiBlocks(final DefinitionConstructor constructor) {
         final BlockLightDetector lightDetector = new BlockLightDetector();
@@ -341,6 +343,7 @@ public final class ApiBlocks implements IBlocks {
         this.assemblerCraftingAccelerator
             = constructor.registerTileDefinition(new BlockAssemblerCraftingAccelerator());
         this.legacyChest = constructor.registerTileDefinition(new BlockLegacyChest());
+        this.powerRelay = constructor.registerTileDefinition(new BlockPowerRelay());
     }
 
     @Override

src/main/java/appeng/tile/legacy/TilePowerRelay.java

@@ -0,0 +1,131 @@
+package appeng.tile.legacy;
+
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Map;
+
+import appeng.api.networking.GridFlags;
+import appeng.api.networking.IGridNode;
+import appeng.api.util.AECableType;
+import appeng.api.util.DimensionalCoord;
+import appeng.me.helpers.AENetworkProxy;
+import appeng.me.helpers.IGridProxyable;
+import appeng.tile.TileEvent;
+import appeng.tile.events.TileEventType;
+import appeng.tile.inventory.AppEngInternalInventory;
+import appeng.tile.inventory.InvOperation;
+import appeng.tile.powersink.AEBasePoweredTile;
+import net.minecraft.inventory.IInventory;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraftforge.common.util.ForgeDirection;
+
+public class TilePowerRelay extends AEBasePoweredTile implements IGridProxyable {
+    public static final IInventory NULL_INVENTORY = new AppEngInternalInventory(null, 0);
+    public static final int[] ACCESSIBLE_SLOTS_BY_SIDE = {};
+    private Map<ForgeDirection, AENetworkProxy> proxies = new HashMap<>();
+
+    public TilePowerRelay() {
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            AENetworkProxy proxy = new AENetworkProxy(this, "proxy" + dir.name().toLowerCase(), this.getItemFromTile(this), true);
+            proxy.setFlags(GridFlags.CANNOT_CARRY);
+            if (dir == ForgeDirection.UNKNOWN) {
+                proxy.setValidSides(EnumSet.noneOf(ForgeDirection.class));
+            } else {
+                proxy.setValidSides(EnumSet.of(dir));
+            }
+            proxies.put(dir, proxy);
+        }
+    }
+
+    @TileEvent(TileEventType.WORLD_NBT_READ)
+    public void readFromNBT_PowerRelay(final NBTTagCompound data) {
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            proxies.get(dir).readFromNBT(data);
+        }
+    }
+
+    @TileEvent(TileEventType.WORLD_NBT_WRITE)
+    public void writeToNBT_PowerRelay(final NBTTagCompound data) {
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            proxies.get(dir).writeToNBT(data);
+        }
+    }
+
+    @Override
+    public IInventory getInternalInventory() {
+        return NULL_INVENTORY;
+    }
+
+    @Override
+    public void onChangeInventory(IInventory inv, int slot, InvOperation mc, ItemStack removed, ItemStack added) {
+        
+    }
+
+    @Override
+    public int[] getAccessibleSlotsBySide(ForgeDirection whichSide) {
+        return ACCESSIBLE_SLOTS_BY_SIDE;
+    }
+
+    @Override
+    public IGridNode getGridNode(ForgeDirection dir) {
+        return proxies.get(dir).getNode();
+    }
+
+    @Override
+    public AECableType getCableConnectionType(ForgeDirection dir) {
+        return AECableType.COVERED;
+    }
+
+    @Override
+    public AENetworkProxy getProxy() {
+        return proxies.get(ForgeDirection.UNKNOWN);
+    }
+
+    public AENetworkProxy getProxyForSide(ForgeDirection dir) {
+        return proxies.get(dir);
+    }
+
+    @Override
+    public DimensionalCoord getLocation() {
+        return new DimensionalCoord(this);
+    }
+
+    @Override
+    public void gridChanged() {
+        
+    }
+
+    @Override
+    public void onChunkUnload() {
+        super.onChunkUnload();
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            proxies.get(dir).onChunkUnload();
+        }
+    }
+
+    @Override
+    public void onReady() {
+        super.onReady();
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            proxies.get(dir).onReady();
+        }
+    }
+
+    @Override
+    public void invalidate() {
+        super.invalidate();
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            proxies.get(dir).invalidate();
+        }
+    }
+
+    @Override
+    public void validate() {
+        super.validate();
+        for(ForgeDirection dir : ForgeDirection.values()) {
+            proxies.get(dir).validate();
+        }
+    }
+    
+}

src/main/resources/assets/appliedenergistics2/lang/en_US.lang

@@ -60,6 +60,7 @@ tile.appliedenergistics2.BlockStorageMonitor.name=ME Storage Monitor
 tile.appliedenergistics2.BlockTerminal.name=ME Access Terminal
 tile.appliedenergistics2.BlockWirelessAccessPoint.name=Wireless Access Point
 tile.appliedenergistics2.BlockLegacyChest.name=ME Chest
+tile.appliedenergistics2.BlockPowerRelay.name=ME Power Relay
 
 item.appliedenergistics2.ItemMaterial.ConversionMatrix.name=Conversion Matrix