convert numerical ids to string ids on canplaceon/candestroy

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/data/BlockIdData.java

@@ -13,6 +13,7 @@ import java.util.Map;
 public class BlockIdData {
     public static Map<String, String[]> blockIdMapping;
     public static Map<String, String[]> fallbackReverseMapping;
+    public static Map<Integer, String> numberIdToString;
 
     public static void init() {
         InputStream stream = MappingData.class.getClassLoader()
@@ -39,5 +40,22 @@ public class BlockIdData {
                 // Ignored
             }
         }
+
+        InputStream blockS = MappingData.class.getClassLoader()
+                .getResourceAsStream("assets/viaversion/data/blockNumberToString1.12.json");
+        InputStreamReader blockR = new InputStreamReader(blockS);
+        try {
+            numberIdToString = new HashMap<>((Map<Integer, String>) GsonUtil.getGson().fromJson(
+                    blockR,
+                    new TypeToken<Map<Integer, String>>() {
+                    }.getType()
+            ));
+        } finally {
+            try {
+                blockR.close();
+            } catch (IOException ignored) {
+                // Ignored
+            }
+        }
     }
 }

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/packets/InventoryPackets.java

@@ -4,6 +4,7 @@ import com.github.steveice10.opennbt.conversion.ConverterRegistry;
 import com.github.steveice10.opennbt.tag.builtin.*;
 import com.google.common.base.Joiner;
 import com.google.common.base.Optional;
+import com.google.common.primitives.Ints;
 import us.myles.ViaVersion.api.PacketWrapper;
 import us.myles.ViaVersion.api.Via;
 import us.myles.ViaVersion.api.minecraft.item.Item;
@@ -388,9 +389,12 @@ public class InventoryPackets {
                 tag.put(ConverterRegistry.convertToTag(NBT_TAG_NAME + "|CanPlaceOn", ConverterRegistry.convertToValue(old))); // There will be data losing
                 for (Tag oldTag : old) {
                     Object value = oldTag.getValue();
-                    String[] newValues = BlockIdData.blockIdMapping.get(value instanceof String
+                    String oldId = value.toString().replace("minecraft:", "");
-                            ? ((String) value).replace("minecraft:", "")
+                    String numberConverted = BlockIdData.numberIdToString.get(Ints.tryParse(oldId));
-                            : null);
+                    if (numberConverted != null) {
+                        oldId = numberConverted;
+                    }
+                    String[] newValues = BlockIdData.blockIdMapping.get(oldId);
                     if (newValues != null) {
                         for (String newValue : newValues) {
                             newCanPlaceOn.add(new StringTag("", newValue));
@@ -407,9 +411,12 @@ public class InventoryPackets {
                 tag.put(ConverterRegistry.convertToTag(NBT_TAG_NAME + "|CanDestroy", ConverterRegistry.convertToValue(old))); // There will be data losing
                 for (Tag oldTag : old) {
                     Object value = oldTag.getValue();
-                    String[] newValues = BlockIdData.blockIdMapping.get(value instanceof String
+                    String oldId = value.toString().replace("minecraft:", "");
-                            ? ((String) value).replace("minecraft:", "")
+                    String numberConverted = BlockIdData.numberIdToString.get(Ints.tryParse(oldId));
-                            : null);
+                    if (numberConverted != null) {
+                        oldId = numberConverted;
+                    }
+                    String[] newValues = BlockIdData.blockIdMapping.get(oldId);
                     if (newValues != null) {
                         for (String newValue : newValues) {
                             newCanDestroy.add(new StringTag("", newValue));

common/src/main/resources/assets/viaversion/data/blockNumberToString1.12.json

@@ -0,0 +1,256 @@
+{
+  "0": "air",
+  "1": "stone",
+  "2": "grass",
+  "3": "dirt",
+  "4": "cobblestone",
+  "5": "planks",
+  "6": "sapling",
+  "7": "bedrock",
+  "8": "flowing_water",
+  "9": "water",
+  "10": "flowing_lava",
+  "11": "lava",
+  "12": "sand",
+  "13": "gravel",
+  "14": "gold_ore",
+  "15": "iron_ore",
+  "16": "coal_ore",
+  "17": "log",
+  "18": "leaves",
+  "19": "sponge",
+  "20": "glass",
+  "21": "lapis_ore",
+  "22": "lapis_block",
+  "23": "dispenser",
+  "24": "sandstone",
+  "25": "noteblock",
+  "26": "bed",
+  "27": "golden_rail",
+  "28": "detector_rail",
+  "29": "sticky_piston",
+  "30": "web",
+  "31": "tallgrass",
+  "32": "deadbush",
+  "33": "piston",
+  "34": "piston_head",
+  "35": "wool",
+  "36": "piston_extension",
+  "37": "yellow_flower",
+  "38": "red_flower",
+  "39": "brown_mushroom",
+  "40": "red_mushroom",
+  "41": "gold_block",
+  "42": "iron_block",
+  "43": "double_stone_slab",
+  "44": "stone_slab",
+  "45": "brick_block",
+  "46": "tnt",
+  "47": "bookshelf",
+  "48": "mossy_cobblestone",
+  "49": "obsidian",
+  "50": "torch",
+  "51": "fire",
+  "52": "mob_spawner",
+  "53": "oak_stairs",
+  "54": "chest",
+  "55": "redstone_wire",
+  "56": "diamond_ore",
+  "57": "diamond_block",
+  "58": "crafting_table",
+  "59": "wheat",
+  "60": "farmland",
+  "61": "furnace",
+  "62": "lit_furnace",
+  "63": "standing_sign",
+  "64": "wooden_door",
+  "65": "ladder",
+  "66": "rail",
+  "67": "stone_stairs",
+  "68": "wall_sign",
+  "69": "lever",
+  "70": "stone_pressure_plate",
+  "71": "iron_door",
+  "72": "wooden_pressure_plate",
+  "73": "redstone_ore",
+  "74": "lit_redstone_ore",
+  "75": "unlit_redstone_torch",
+  "76": "redstone_torch",
+  "77": "stone_button",
+  "78": "snow_layer",
+  "79": "ice",
+  "80": "snow",
+  "81": "cactus",
+  "82": "clay",
+  "83": "reeds",
+  "84": "jukebox",
+  "85": "fence",
+  "86": "pumpkin",
+  "87": "netherrack",
+  "88": "soul_sand",
+  "89": "glowstone",
+  "90": "portal",
+  "91": "lit_pumpkin",
+  "92": "cake",
+  "93": "unpowered_repeater",
+  "94": "powered_repeater",
+  "95": "stained_glass",
+  "96": "trapdoor",
+  "97": "monster_egg",
+  "98": "stonebrick",
+  "99": "brown_mushroom_block",
+  "100": "red_mushroom_block",
+  "101": "iron_bars",
+  "102": "glass_pane",
+  "103": "melon_block",
+  "104": "pumpkin_stem",
+  "105": "melon_stem",
+  "106": "vine",
+  "107": "fence_gate",
+  "108": "brick_stairs",
+  "109": "stone_brick_stairs",
+  "110": "mycelium",
+  "111": "waterlily",
+  "112": "nether_brick",
+  "113": "nether_brick_fence",
+  "114": "nether_brick_stairs",
+  "115": "nether_wart",
+  "116": "enchanting_table",
+  "117": "brewing_stand",
+  "118": "cauldron",
+  "119": "end_portal",
+  "120": "end_portal_frame",
+  "121": "end_stone",
+  "122": "dragon_egg",
+  "123": "redstone_lamp",
+  "124": "lit_redstone_lamp",
+  "125": "double_wooden_slab",
+  "126": "wooden_slab",
+  "127": "cocoa",
+  "128": "sandstone_stairs",
+  "129": "emerald_ore",
+  "130": "ender_chest",
+  "131": "tripwire_hook",
+  "132": "tripwire",
+  "133": "emerald_block",
+  "134": "spruce_stairs",
+  "135": "birch_stairs",
+  "136": "jungle_stairs",
+  "137": "command_block",
+  "138": "beacon",
+  "139": "cobblestone_wall",
+  "140": "flower_pot",
+  "141": "carrots",
+  "142": "potatoes",
+  "143": "wooden_button",
+  "144": "skull",
+  "145": "anvil",
+  "146": "trapped_chest",
+  "147": "light_weighted_pressure_plate",
+  "148": "heavy_weighted_pressure_plate",
+  "149": "unpowered_comparator",
+  "150": "powered_comparator",
+  "151": "daylight_detector",
+  "152": "redstone_block",
+  "153": "quartz_ore",
+  "154": "hopper",
+  "155": "quartz_block",
+  "156": "quartz_stairs",
+  "157": "activator_rail",
+  "158": "dropper",
+  "159": "stained_hardened_clay",
+  "160": "stained_glass_pane",
+  "161": "leaves2",
+  "162": "log2",
+  "163": "acacia_stairs",
+  "164": "dark_oak_stairs",
+  "165": "slime",
+  "166": "barrier",
+  "167": "iron_trapdoor",
+  "168": "prismarine",
+  "169": "sea_lantern",
+  "170": "hay_block",
+  "171": "carpet",
+  "172": "hardened_clay",
+  "173": "coal_block",
+  "174": "packed_ice",
+  "175": "double_plant",
+  "176": "standing_banner",
+  "177": "wall_banner",
+  "178": "daylight_detector_inverted",
+  "179": "red_sandstone",
+  "180": "red_sandstone_stairs",
+  "181": "double_stone_slab2",
+  "182": "stone_slab2",
+  "183": "spruce_fence_gate",
+  "184": "birch_fence_gate",
+  "185": "jungle_fence_gate",
+  "186": "dark_oak_fence_gate",
+  "187": "acacia_fence_gate",
+  "188": "spruce_fence",
+  "189": "birch_fence",
+  "190": "jungle_fence",
+  "191": "dark_oak_fence",
+  "192": "acacia_fence",
+  "193": "spruce_door",
+  "194": "birch_door",
+  "195": "jungle_door",
+  "196": "acacia_door",
+  "197": "dark_oak_door",
+  "198": "end_rod",
+  "199": "chorus_plant",
+  "200": "chorus_flower",
+  "201": "purpur_block",
+  "202": "purpur_pillar",
+  "203": "purpur_stairs",
+  "204": "purpur_double_slab",
+  "205": "purpur_slab",
+  "206": "end_bricks",
+  "207": "beetroots",
+  "208": "grass_path",
+  "209": "end_gateway",
+  "210": "repeating_command_block",
+  "211": "chain_command_block",
+  "212": "frosted_ice",
+  "213": "magma",
+  "214": "nether_wart_block",
+  "215": "red_nether_brick",
+  "216": "bone_block",
+  "217": "structure_void",
+  "218": "observer",
+  "219": "white_shulker_box",
+  "220": "orange_shulker_box",
+  "221": "magenta_shulker_box",
+  "222": "light_blue_shulker_box",
+  "223": "yellow_shulker_box",
+  "224": "lime_shulker_box",
+  "225": "pink_shulker_box",
+  "226": "gray_shulker_box",
+  "227": "silver_shulker_box",
+  "228": "cyan_shulker_box",
+  "229": "purple_shulker_box",
+  "230": "blue_shulker_box",
+  "231": "brown_shulker_box",
+  "232": "green_shulker_box",
+  "233": "red_shulker_box",
+  "234": "black_shulker_box",
+  "235": "white_glazed_terracotta",
+  "236": "orange_glazed_terracotta",
+  "237": "magenta_glazed_terracotta",
+  "238": "light_blue_glazed_terracotta",
+  "239": "yellow_glazed_terracotta",
+  "240": "lime_glazed_terracotta",
+  "241": "pink_glazed_terracotta",
+  "242": "gray_glazed_terracotta",
+  "243": "silver_glazed_terracotta",
+  "244": "cyan_glazed_terracotta",
+  "245": "purple_glazed_terracotta",
+  "246": "blue_glazed_terracotta",
+  "247": "brown_glazed_terracotta",
+  "248": "green_glazed_terracotta",
+  "249": "red_glazed_terracotta",
+  "250": "black_glazed_terracotta",
+  "251": "concrete",
+  "252": "concrete_powder",
+  "255": "structure_block"
+}