Forward cooldowns for shields and goats

These are server-controlled as of 1.19. Ender pearls and chorus fruit still appear to be client-controlled.

core/src/main/java/org/geysermc/geyser/inventory/item/StoredItemMappings.java

@@ -50,6 +50,7 @@ public class StoredItemMappings {
     private final ItemMapping fishingRod;
     private final int flintAndSteel;
     private final int frogspawn;
+    private final int goatHorn;
     private final int glassBottle;
     private final int goldenApple;
     private final int goldIngot;
@@ -82,6 +83,7 @@ public class StoredItemMappings {
         this.fishingRod = load(itemMappings, "fishing_rod");
         this.flintAndSteel = load(itemMappings, "flint_and_steel").getJavaId();
         this.frogspawn = load(itemMappings, "frogspawn").getBedrockId();
+        this.goatHorn = load(itemMappings, "goat_horn").getJavaId();
         this.glassBottle = load(itemMappings, "glass_bottle").getBedrockId();
         this.goldenApple = load(itemMappings, "golden_apple").getJavaId();
         this.goldIngot = load(itemMappings, "gold_ingot").getJavaId();

core/src/main/java/org/geysermc/geyser/translator/protocol/java/level/JavaCooldownTranslator.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2019-2022 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.geyser.translator.protocol.java.level;
+
+import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundCooldownPacket;
+import com.nukkitx.protocol.bedrock.packet.PlayerStartItemCooldownPacket;
+import org.geysermc.geyser.inventory.item.StoredItemMappings;
+import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.translator.protocol.PacketTranslator;
+import org.geysermc.geyser.translator.protocol.Translator;
+
+@Translator(packet = ClientboundCooldownPacket.class)
+public class JavaCooldownTranslator extends PacketTranslator<ClientboundCooldownPacket> {
+
+    @Override
+    public void translate(GeyserSession session, ClientboundCooldownPacket packet) {
+        StoredItemMappings itemMappings = session.getItemMappings().getStoredItems();
+
+        int itemId = packet.getItemId();
+        // Not every item, as of 1.19, appears to be server-driven. Just these two.
+        // Use a map here if it gets too big.
+        String cooldownCategory;
+        if (itemId == itemMappings.goatHorn()) {
+            cooldownCategory = "goat_horn";
+        } else if (itemId == itemMappings.shield().getJavaId()) {
+            cooldownCategory = "shield";
+        } else {
+            cooldownCategory = null;
+        }
+
+        if (cooldownCategory != null) {
+            PlayerStartItemCooldownPacket bedrockPacket = new PlayerStartItemCooldownPacket();
+            bedrockPacket.setItemCategory(cooldownCategory);
+            bedrockPacket.setCooldownDuration(packet.getCooldownTicks());
+            session.sendUpstreamPacket(bedrockPacket);
+        }
+    }
+}