PrettySparkleParticle.cs

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using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Terraria.GameContent;
 
namespace Terraria.Graphics.Renderers;
 
public class PrettySparkleParticle : ABasicParticle
{
    public float FadeInNormalizedTime = 0.05f;
 
    public float FadeOutNormalizedTime = 0.9f;
 
    public float TimeToLive = 60f;
 
    public Color ColorTint;
 
    public float Opacity;
 
    public float AdditiveAmount = 1f;
 
    public float FadeInEnd = 20f;
 
    public float FadeOutStart = 30f;
 
    public float FadeOutEnd = 45f;
 
    public bool DrawHorizontalAxis = true;
 
    public bool DrawVerticalAxis = true;
 
    private float _timeSinceSpawn;
 
    public override void FetchFromPool()
    {
        base.FetchFromPool();
        ColorTint = Color.Transparent;
        _timeSinceSpawn = 0f;
        Opacity = 0f;
        FadeInNormalizedTime = 0.05f;
        FadeOutNormalizedTime = 0.9f;
        TimeToLive = 60f;
        AdditiveAmount = 1f;
        FadeInEnd = 20f;
        FadeOutStart = 30f;
        FadeOutEnd = 45f;
        DrawVerticalAxis = (DrawHorizontalAxis = true);
    }
 
    public override void Update(ref ParticleRendererSettings settings)
    {
        base.Update(ref settings);
        _timeSinceSpawn += 1f;
        Opacity = Utils.GetLerpValue(0f, FadeInNormalizedTime, _timeSinceSpawn / TimeToLive, clamped: true) * Utils.GetLerpValue(1f, FadeOutNormalizedTime, _timeSinceSpawn / TimeToLive, clamped: true);
        if (_timeSinceSpawn >= TimeToLive)
        {
            base.ShouldBeRemovedFromRenderer = true;
        }
    }
 
    public override void Draw(ref ParticleRendererSettings settings, SpriteBatch spritebatch)
    {
        Color color = Color.White * Opacity * 0.9f;
        color.A /= 2;
        Texture2D value = TextureAssets.Extra[98].Value;
        Color color2 = ColorTint * Opacity * 0.5f;
        color2.A = (byte)((float)(int)color2.A * (1f - AdditiveAmount));
        Vector2 origin = value.Size() / 2f;
        Color color3 = color * 0.5f;
        float t = _timeSinceSpawn / TimeToLive * 60f;
        float num = Utils.GetLerpValue(0f, FadeInEnd, t, clamped: true) * Utils.GetLerpValue(FadeOutEnd, FadeOutStart, t, clamped: true);
        Vector2 vector = new Vector2(0.3f, 2f) * num * Scale;
        Vector2 vector2 = new Vector2(0.3f, 1f) * num * Scale;
        color2 *= num;
        color3 *= num;
        Vector2 position = settings.AnchorPosition + LocalPosition;
        SpriteEffects effects = SpriteEffects.None;
        if (DrawHorizontalAxis)
        {
            spritebatch.Draw(value, position, null, color2, (float)Math.PI / 2f + Rotation, origin, vector, effects, 0f);
        }
        if (DrawVerticalAxis)
        {
            spritebatch.Draw(value, position, null, color2, 0f + Rotation, origin, vector2, effects, 0f);
        }
        if (DrawHorizontalAxis)
        {
            spritebatch.Draw(value, position, null, color3, (float)Math.PI / 2f + Rotation, origin, vector * 0.6f, effects, 0f);
        }
        if (DrawVerticalAxis)
        {
            spritebatch.Draw(value, position, null, color3, 0f + Rotation, origin, vector2 * 0.6f, effects, 0f);
        }
    }
}