ItemSpawnEggFix.java

net.minecraft.util.datafix.fixes.ItemSpawnEggFix

信息

• 全限定名：net.minecraft.util.datafix.fixes.ItemSpawnEggFix
• 类型：public class
• 包：net.minecraft.util.datafix.fixes
• 源码路径：src/main/java/net/minecraft/util/datafix/fixes/ItemSpawnEggFix.java
• 起始行号：L19
• 继承：DataFix
• 职责：

  TODO

字段/常量

• ID_TO_ENTITY
  • 类型: String[]
  • 修饰符: private static final
  • 源码定位: L20
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

public ItemSpawnEggFix(Schema outputSchema, boolean changesType) @ L88

• 构造器名：ItemSpawnEggFix
• 源码定位：L88
• 修饰符：public

参数:

• outputSchema: Schema
• changesType: boolean

说明:

TODO

方法

下面的方法块按源码顺序生成。

public TypeRewriteRule makeRule() @ L92

• 方法名：makeRule
• 源码定位：L92
• 返回类型：TypeRewriteRule
• 修饰符：public

参数:

• 无

说明:

TODO

代码

public class ItemSpawnEggFix extends DataFix {
    private static final @Nullable String[] ID_TO_ENTITY = DataFixUtils.make(new String[256], map -> {
        map[1] = "Item";
        map[2] = "XPOrb";
        map[7] = "ThrownEgg";
        map[8] = "LeashKnot";
        map[9] = "Painting";
        map[10] = "Arrow";
        map[11] = "Snowball";
        map[12] = "Fireball";
        map[13] = "SmallFireball";
        map[14] = "ThrownEnderpearl";
        map[15] = "EyeOfEnderSignal";
        map[16] = "ThrownPotion";
        map[17] = "ThrownExpBottle";
        map[18] = "ItemFrame";
        map[19] = "WitherSkull";
        map[20] = "PrimedTnt";
        map[21] = "FallingSand";
        map[22] = "FireworksRocketEntity";
        map[23] = "TippedArrow";
        map[24] = "SpectralArrow";
        map[25] = "ShulkerBullet";
        map[26] = "DragonFireball";
        map[30] = "ArmorStand";
        map[41] = "Boat";
        map[42] = "MinecartRideable";
        map[43] = "MinecartChest";
        map[44] = "MinecartFurnace";
        map[45] = "MinecartTNT";
        map[46] = "MinecartHopper";
        map[47] = "MinecartSpawner";
        map[40] = "MinecartCommandBlock";
        map[50] = "Creeper";
        map[51] = "Skeleton";
        map[52] = "Spider";
        map[53] = "Giant";
        map[54] = "Zombie";
        map[55] = "Slime";
        map[56] = "Ghast";
        map[57] = "PigZombie";
        map[58] = "Enderman";
        map[59] = "CaveSpider";
        map[60] = "Silverfish";
        map[61] = "Blaze";
        map[62] = "LavaSlime";
        map[63] = "EnderDragon";
        map[64] = "WitherBoss";
        map[65] = "Bat";
        map[66] = "Witch";
        map[67] = "Endermite";
        map[68] = "Guardian";
        map[69] = "Shulker";
        map[90] = "Pig";
        map[91] = "Sheep";
        map[92] = "Cow";
        map[93] = "Chicken";
        map[94] = "Squid";
        map[95] = "Wolf";
        map[96] = "MushroomCow";
        map[97] = "SnowMan";
        map[98] = "Ozelot";
        map[99] = "VillagerGolem";
        map[100] = "EntityHorse";
        map[101] = "Rabbit";
        map[120] = "Villager";
        map[200] = "EnderCrystal";
    });
 
    public ItemSpawnEggFix(Schema outputSchema, boolean changesType) {
        super(outputSchema, changesType);
    }
 
    @Override
    public TypeRewriteRule makeRule() {
        Schema inputSchema = this.getInputSchema();
        Type<?> itemStackType = inputSchema.getType(References.ITEM_STACK);
        OpticFinder<Pair<String, String>> idFinder = DSL.fieldFinder("id", DSL.named(References.ITEM_NAME.typeName(), NamespacedSchema.namespacedString()));
        OpticFinder<String> entityIdFinder = DSL.fieldFinder("id", DSL.string());
        OpticFinder<?> tagFinder = itemStackType.findField("tag");
        OpticFinder<?> entityTagFinder = tagFinder.type().findField("EntityTag");
        OpticFinder<?> entityFinder = DSL.typeFinder(inputSchema.getTypeRaw(References.ENTITY));
        return this.fixTypeEverywhereTyped(
            "ItemSpawnEggFix",
            itemStackType,
            input -> {
                Optional<Pair<String, String>> id = input.getOptional(idFinder);
                if (id.isPresent() && Objects.equals(id.get().getSecond(), "minecraft:spawn_egg")) {
                    Dynamic<?> rest = input.get(DSL.remainderFinder());
                    short damage = rest.get("Damage").asShort((short)0);
                    Optional<? extends Typed<?>> tagOptional = input.getOptionalTyped(tagFinder);
                    Optional<? extends Typed<?>> entityTreeOptional = tagOptional.flatMap(value -> value.getOptionalTyped(entityTagFinder));
                    Optional<? extends Typed<?>> entityOptional = entityTreeOptional.flatMap(value -> value.getOptionalTyped(entityFinder));
                    Optional<String> oldId = entityOptional.flatMap(value -> value.getOptional(entityIdFinder));
                    Typed<?> output = input;
                    String entityName = ID_TO_ENTITY[damage & 255];
                    if (entityName != null && (oldId.isEmpty() || !Objects.equals(oldId.get(), entityName))) {
                        Typed<?> tag = input.getOrCreateTyped(tagFinder);
                        Dynamic<?> entityTag = DataFixUtils.orElse(
                            tag.getOptionalTyped(entityTagFinder).map(entityTree -> entityTree.write().getOrThrow()), rest.emptyMap()
                        );
                        entityTag = entityTag.set("id", entityTag.createString(entityName));
                        output = input.set(tagFinder, ExtraDataFixUtils.readAndSet(tag, entityTagFinder, entityTag));
                    }
 
                    if (damage != 0) {
                        rest = rest.set("Damage", rest.createShort((short)0));
                        output = output.set(DSL.remainderFinder(), rest);
                    }
 
                    return output;
                } else {
                    return input;
                }
            }
        );
    }
}

引用的其他类

• Schema

  • 引用位置: 参数

• ExtraDataFixUtils

  • 引用位置: 方法调用
  • 关联成员: ExtraDataFixUtils.readAndSet()

• NamespacedSchema

  • 引用位置: 方法调用
  • 关联成员: NamespacedSchema.namespacedString()