package net.minecraft.server.commands;

import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.arguments.EntityAnchorArgument;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.phys.Vec3;

@FunctionalInterface
public interface LookAt {
	void perform(CommandSourceStack source, Entity target);

	public record LookAtEntity(Entity entity, EntityAnchorArgument.Anchor anchor) implements LookAt {
		@Override
		public void perform(final CommandSourceStack source, final Entity target) {
			if (target instanceof ServerPlayer targetPlayer) {
				targetPlayer.lookAt(source.getAnchor(), this.entity, this.anchor);
			} else {
				target.lookAt(source.getAnchor(), this.anchor.apply(this.entity));
			}
		}
	}

	public record LookAtPosition(Vec3 position) implements LookAt {
		@Override
		public void perform(final CommandSourceStack source, final Entity target) {
			target.lookAt(source.getAnchor(), this.position);
		}
	}
}