Add ability to use items

Now able to use bows, eat food, throw ender pearls, etc.

connector/src/main/java/org/geysermc/connector/network/UpstreamPacketHandler.java

@@ -150,4 +150,9 @@ public class UpstreamPacketHandler extends LoggingPacketHandler {
     public boolean handle(PlayerActionPacket packet) {
         return translateAndDefault(packet);
     }
+
+    @Override
+    public boolean handle(InventoryTransactionPacket packet) {
+        return translateAndDefault(packet);
+    }
 }

connector/src/main/java/org/geysermc/connector/network/translators/TranslatorsInit.java

@@ -150,6 +150,7 @@ public class TranslatorsInit {
         Registry.registerBedrock(MobEquipmentPacket.class, new BedrockMobEquipmentTranslator());
         Registry.registerBedrock(PlayerActionPacket.class, new BedrockActionTranslator());
         Registry.registerBedrock(MovePlayerPacket.class, new BedrockMovePlayerTranslator());
+        Registry.registerBedrock(InventoryTransactionPacket.class, new BedrockInventoryTransactionTranslator());
 
         itemTranslator = new ItemTranslator();
         blockTranslator = new BlockTranslator();

connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockInventoryTransactionTranslator.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2019 GeyserMC. http://geysermc.org
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.connector.network.translators.bedrock;
+
+import com.github.steveice10.mc.protocol.data.game.entity.metadata.Position;
+import com.github.steveice10.mc.protocol.data.game.entity.player.Hand;
+import com.github.steveice10.mc.protocol.data.game.entity.player.PlayerAction;
+import com.github.steveice10.mc.protocol.data.game.world.block.BlockFace;
+import com.github.steveice10.mc.protocol.packet.ingame.client.player.ClientPlayerActionPacket;
+import com.github.steveice10.mc.protocol.packet.ingame.client.player.ClientPlayerUseItemPacket;
+import com.nukkitx.protocol.bedrock.packet.InventoryTransactionPacket;
+import org.geysermc.connector.network.session.GeyserSession;
+import org.geysermc.connector.network.translators.PacketTranslator;
+
+public class BedrockInventoryTransactionTranslator extends PacketTranslator<InventoryTransactionPacket> {
+
+    @Override
+    public void translate(InventoryTransactionPacket packet, GeyserSession session) {
+        switch (packet.getTransactionType()) {
+            case ITEM_USE:
+                switch (packet.getActionType()) {
+                    case 1:
+                        ClientPlayerUseItemPacket useItemPacket = new ClientPlayerUseItemPacket(Hand.MAIN_HAND);
+                        session.getDownstream().getSession().send(useItemPacket);
+                        break;
+                }
+                break;
+            case ITEM_RELEASE:
+                ClientPlayerActionPacket releaseItemPacket = new ClientPlayerActionPacket(PlayerAction.RELEASE_USE_ITEM, new Position(0,0,0), BlockFace.DOWN);
+                session.getDownstream().getSession().send(releaseItemPacket);
+                break;
+        }
+    }
+}