using System;

namespace BetterUI.Animations;

/// <summary>
/// Animates a component by shaking it between a minimum and maximum position.
/// </summary>
public class ShakeAnimation : AnimationBase
{
	/// <summary>
	/// The intensity of the shake animation.
	/// </summary>
	[Property]
	public float Intensity { get; set; } = 1f;

	/// <summary>
	/// The frequency of the shake animation.
	/// </summary>
	[Property]
	public float Frequency { get; set; } = 1f;

	protected override void OnAnimate( float t )
	{
		var easedTime = ApplyEasing( NormalizedTime, Easing );
		var shakeFactor = MathF.Sin( easedTime * MathF.PI * 2 * Frequency );

		var x = StartPosition.x + (Axis.x * shakeFactor * Intensity);
		var y = StartPosition.y + (Axis.y * shakeFactor * Intensity);
		var z = StartPosition.z + (Axis.z * shakeFactor * Intensity);

		WorldPosition = new Vector3( x, y, z );
	}
}