package net.minecraft.world.entity.ai.attributes;

import net.minecraft.util.Mth;

/**
 * Defines an entity {@linkplain net.minecraft.world.entity.ai.attributes.Attribute attribute} that is limited to a range of values.
 */
public class RangedAttribute extends Attribute {
	/**
	 * The lowest possible value for the attribute.
	 */
	private final double minValue;
	/**
	 * The highest possible value for the attribute.
	 */
	private final double maxValue;

	public RangedAttribute(String descriptionId, double defaultValue, double min, double max) {
		super(descriptionId, defaultValue);
		this.minValue = min;
		this.maxValue = max;
		if (min > max) {
			throw new IllegalArgumentException("Minimum value cannot be bigger than maximum value!");
		} else if (defaultValue < min) {
			throw new IllegalArgumentException("Default value cannot be lower than minimum value!");
		} else if (defaultValue > max) {
			throw new IllegalArgumentException("Default value cannot be bigger than maximum value!");
		}
	}

	/**
	 * Gets the lowest possible value for the attribute.
	 * @return The lowest possible value for the attribute; {@link #minValue}.
	 */
	public double getMinValue() {
		return this.minValue;
	}

	/**
	 * Gets the highest possible value for the attribute.
	 * @return The highest possible value for the attribute; {@link #maxValue}.
	 */
	public double getMaxValue() {
		return this.maxValue;
	}

	@Override
	public double sanitizeValue(double value) {
		return Double.isNaN(value) ? this.minValue : Mth.clamp(value, this.minValue, this.maxValue);
	}
}