CreativeSacrificeParticle.cs

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using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using ReLogic.Content;
 
namespace Terraria.Graphics.Renderers;
 
public class CreativeSacrificeParticle : IParticle
{
    public Vector2 AccelerationPerFrame;
 
    public Vector2 Velocity;
 
    public Vector2 LocalPosition;
 
    public float ScaleOffsetPerFrame;
 
    public float StopWhenBelowXScale;
 
    private Asset<Texture2D> _texture;
 
    private Rectangle _frame;
 
    private Vector2 _origin;
 
    private float _scale;
 
    public bool ShouldBeRemovedFromRenderer { get; private set; }
 
    public CreativeSacrificeParticle(Asset<Texture2D> textureAsset, Rectangle? frame, Vector2 initialVelocity, Vector2 initialLocalPosition)
    {
        _texture = textureAsset;
        _frame = (frame.HasValue ? frame.Value : _texture.Frame());
        _origin = _frame.Size() / 2f;
        Velocity = initialVelocity;
        LocalPosition = initialLocalPosition;
        StopWhenBelowXScale = 0f;
        ShouldBeRemovedFromRenderer = false;
        _scale = 0.6f;
    }
 
    public void Update(ref ParticleRendererSettings settings)
    {
        Velocity += AccelerationPerFrame;
        LocalPosition += Velocity;
        _scale += ScaleOffsetPerFrame;
        if (_scale <= StopWhenBelowXScale)
        {
            ShouldBeRemovedFromRenderer = true;
        }
    }
 
    public void Draw(ref ParticleRendererSettings settings, SpriteBatch spritebatch)
    {
        Color color = Color.Lerp(Color.White, new Color(255, 255, 255, 0), Utils.GetLerpValue(0.1f, 0.5f, _scale));
        spritebatch.Draw(_texture.Value, settings.AnchorPosition + LocalPosition, _frame, color, 0f, _origin, _scale, SpriteEffects.None, 0f);
    }
}