minecraft-src/net/minecraft/advancements/critereon/WrappedMinMaxBounds.java

package net.minecraft.advancements.critereon;

import com.google.gson.JsonElement;
import com.google.gson.JsonNull;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import com.mojang.brigadier.StringReader;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
import java.util.function.Function;
import net.minecraft.network.chat.Component;
import net.minecraft.util.GsonHelper;
import org.jetbrains.annotations.Nullable;

public record WrappedMinMaxBounds(@Nullable Float min, @Nullable Float max) {
	public static final WrappedMinMaxBounds ANY = new WrappedMinMaxBounds(null, null);
	public static final SimpleCommandExceptionType ERROR_INTS_ONLY = new SimpleCommandExceptionType(Component.translatable("argument.range.ints"));

	public static WrappedMinMaxBounds exactly(float value) {
		return new WrappedMinMaxBounds(value, value);
	}

	public static WrappedMinMaxBounds between(float min, float max) {
		return new WrappedMinMaxBounds(min, max);
	}

	public static WrappedMinMaxBounds atLeast(float min) {
		return new WrappedMinMaxBounds(min, null);
	}

	public static WrappedMinMaxBounds atMost(float max) {
		return new WrappedMinMaxBounds(null, max);
	}

	public boolean matches(float value) {
		if (this.min != null && this.max != null && this.min > this.max && this.min > value && this.max < value) {
			return false;
		} else {
			return this.min != null && this.min > value ? false : this.max == null || !(this.max < value);
		}
	}

	public boolean matchesSqr(double value) {
		if (this.min != null && this.max != null && this.min > this.max && this.min * this.min > value && this.max * this.max < value) {
			return false;
		} else {
			return this.min != null && this.min * this.min > value ? false : this.max == null || !(this.max * this.max < value);
		}
	}

	public JsonElement serializeToJson() {
		if (this == ANY) {
			return JsonNull.INSTANCE;
		} else if (this.min != null && this.max != null && this.min.equals(this.max)) {
			return new JsonPrimitive(this.min);
		} else {
			JsonObject jsonObject = new JsonObject();
			if (this.min != null) {
				jsonObject.addProperty("min", this.min);
			}

			if (this.max != null) {
				jsonObject.addProperty("max", this.min);
			}

			return jsonObject;
		}
	}

	public static WrappedMinMaxBounds fromJson(@Nullable JsonElement json) {
		if (json == null || json.isJsonNull()) {
			return ANY;
		} else if (GsonHelper.isNumberValue(json)) {
			float f = GsonHelper.convertToFloat(json, "value");
			return new WrappedMinMaxBounds(f, f);
		} else {
			JsonObject jsonObject = GsonHelper.convertToJsonObject(json, "value");
			Float float_ = jsonObject.has("min") ? GsonHelper.getAsFloat(jsonObject, "min") : null;
			Float float2 = jsonObject.has("max") ? GsonHelper.getAsFloat(jsonObject, "max") : null;
			return new WrappedMinMaxBounds(float_, float2);
		}
	}

	public static WrappedMinMaxBounds fromReader(StringReader reader, boolean isFloatingPoint) throws CommandSyntaxException {
		return fromReader(reader, isFloatingPoint, float_ -> float_);
	}

	public static WrappedMinMaxBounds fromReader(StringReader reader, boolean isFloatingPoint, Function<Float, Float> valueFactory) throws CommandSyntaxException {
		if (!reader.canRead()) {
			throw MinMaxBounds.ERROR_EMPTY.createWithContext(reader);
		} else {
			int i = reader.getCursor();
			Float float_ = optionallyFormat(readNumber(reader, isFloatingPoint), valueFactory);
			Float float2;
			if (reader.canRead(2) && reader.peek() == '.' && reader.peek(1) == '.') {
				reader.skip();
				reader.skip();
				float2 = optionallyFormat(readNumber(reader, isFloatingPoint), valueFactory);
				if (float_ == null && float2 == null) {
					reader.setCursor(i);
					throw MinMaxBounds.ERROR_EMPTY.createWithContext(reader);
				}
			} else {
				if (!isFloatingPoint && reader.canRead() && reader.peek() == '.') {
					reader.setCursor(i);
					throw ERROR_INTS_ONLY.createWithContext(reader);
				}

				float2 = float_;
			}

			if (float_ == null && float2 == null) {
				reader.setCursor(i);
				throw MinMaxBounds.ERROR_EMPTY.createWithContext(reader);
			} else {
				return new WrappedMinMaxBounds(float_, float2);
			}
		}
	}

	@Nullable
	private static Float readNumber(StringReader reader, boolean isFloatingPoint) throws CommandSyntaxException {
		int i = reader.getCursor();

		while (reader.canRead() && isAllowedNumber(reader, isFloatingPoint)) {
			reader.skip();
		}

		String string = reader.getString().substring(i, reader.getCursor());
		if (string.isEmpty()) {
			return null;
		} else {
			try {
				return Float.parseFloat(string);
			} catch (NumberFormatException var5) {
				if (isFloatingPoint) {
					throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.readerInvalidDouble().createWithContext(reader, string);
				} else {
					throw CommandSyntaxException.BUILT_IN_EXCEPTIONS.readerInvalidInt().createWithContext(reader, string);
				}
			}
		}
	}

	private static boolean isAllowedNumber(StringReader reader, boolean isFloatingPoint) {
		char c = reader.peek();
		if ((c < '0' || c > '9') && c != '-') {
			return isFloatingPoint && c == '.' ? !reader.canRead(2) || reader.peek(1) != '.' : false;
		} else {
			return true;
		}
	}

	@Nullable
	private static Float optionallyFormat(@Nullable Float value, Function<Float, Float> valueFactory) {
		return value == null ? null : (Float)valueFactory.apply(value);
	}
}