Add furnace minecart (#712)

Adds the display of the furnace minecart, functions as expected.

connector/src/main/java/org/geysermc/connector/entity/FurnaceMinecartEntity.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2019-2020 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.entity;
+
+import com.github.steveice10.mc.protocol.data.game.entity.metadata.EntityMetadata;
+import com.nukkitx.math.vector.Vector3f;
+import com.nukkitx.protocol.bedrock.data.EntityData;
+import org.geysermc.connector.entity.type.EntityType;
+import org.geysermc.connector.network.session.GeyserSession;
+import org.geysermc.connector.network.translators.world.block.BlockTranslator;
+
+public class FurnaceMinecartEntity extends MinecartEntity {
+
+    public FurnaceMinecartEntity(long entityId, long geyserId, EntityType entityType, Vector3f position, Vector3f motion, Vector3f rotation) {
+        super(entityId, geyserId, entityType, position, motion, rotation);
+
+        metadata.put(EntityData.DISPLAY_ITEM, BlockTranslator.getBedrockBlockId(BlockTranslator.JAVA_RUNTIME_FURNACE_ID));
+        metadata.put(EntityData.HAS_DISPLAY, (byte) 1);
+    }
+
+    @Override
+    public void updateBedrockMetadata(EntityMetadata entityMetadata, GeyserSession session) {
+        if (entityMetadata.getId() == 13) {
+            boolean hasFuel = (boolean) entityMetadata.getValue();
+
+            metadata.put(EntityData.DISPLAY_ITEM, BlockTranslator.getBedrockBlockId(hasFuel ? BlockTranslator.JAVA_RUNTIME_FURNACE_LIT_ID : BlockTranslator.JAVA_RUNTIME_FURNACE_ID));
+        }
+
+        super.updateBedrockMetadata(entityMetadata, session);
+    }
+}

connector/src/main/java/org/geysermc/connector/entity/type/EntityType.java

@@ -133,7 +133,7 @@ public enum EntityType {
     MINECART_HOPPER(MinecartEntity.class, 96, 0.7f, 0.98f, 0.98f, 0.35f, "minecraft:hopper_minecart"),
     MINECART_TNT(MinecartEntity.class, 97, 0.7f, 0.98f, 0.98f, 0.35f, "minecraft:tnt_minecart"),
     MINECART_CHEST(MinecartEntity.class, 98, 0.7f, 0.98f, 0.98f, 0.35f, "minecraft:chest_minecart"),
-
+    MINECART_FURNACE(FurnaceMinecartEntity.class, 98, 0.7f, 0.98f, 0.98f, 0.35f, "minecraft:minecart"),
     MINECART_COMMAND_BLOCK(MinecartEntity.class, 100, 0.7f, 0.98f, 0.98f, 0.35f, "minecraft:command_block_minecart"),
     LINGERING_POTION(ThrowableEntity.class, 101, 0f),
     LLAMA_SPIT(Entity.class, 102, 0.25f),

connector/src/main/java/org/geysermc/connector/network/translators/world/block/BlockTranslator.java

@@ -69,6 +69,9 @@ public class BlockTranslator {
     public static final IntSet JAVA_RUNTIME_WOOL_IDS = new IntOpenHashSet();
     public static final int JAVA_RUNTIME_COBWEB_ID;
 
+    public static final int JAVA_RUNTIME_FURNACE_ID;
+    public static final int JAVA_RUNTIME_FURNACE_LIT_ID;
+
     private static final int BLOCK_STATE_VERSION = 17760256;
 
     static {
@@ -108,6 +111,8 @@ public class BlockTranslator {
         int javaRuntimeId = -1;
         int bedrockRuntimeId = 0;
         int cobwebRuntimeId = -1;
+        int furnaceRuntimeId = -1;
+        int furnaceLitRuntimeId = -1;
         Iterator<Map.Entry<String, JsonNode>> blocksIterator = blocks.fields();
         while (blocksIterator.hasNext()) {
             javaRuntimeId++;
@@ -186,6 +191,14 @@ public class BlockTranslator {
             }
             JAVA_TO_BEDROCK_BLOCK_MAP.put(javaRuntimeId, bedrockRuntimeId);
 
+            if (javaId.startsWith("minecraft:furnace[facing=north")) {
+                if (javaId.contains("lit=true")) {
+                    furnaceLitRuntimeId = javaRuntimeId;
+                } else {
+                    furnaceRuntimeId = javaRuntimeId;
+                }
+            }
+
             bedrockRuntimeId++;
         }
 
@@ -194,6 +207,16 @@ public class BlockTranslator {
         }
         JAVA_RUNTIME_COBWEB_ID = cobwebRuntimeId;
 
+        if (furnaceRuntimeId == -1) {
+            throw new AssertionError("Unable to find furnace in palette");
+        }
+        JAVA_RUNTIME_FURNACE_ID = furnaceRuntimeId;
+
+        if (furnaceLitRuntimeId == -1) {
+            throw new AssertionError("Unable to find lit furnace in palette");
+        }
+        JAVA_RUNTIME_FURNACE_LIT_ID = furnaceLitRuntimeId;
+
         if (waterRuntimeId == -1) {
             throw new AssertionError("Unable to find water in palette");
         }