content: package de.danoeh.antennapod.ui.echo.background;
  
  import android.content.Context;
  import android.graphics.Canvas;
  import androidx.annotation.NonNull;
  
  public class StripesBackground extends BaseBackground {
      protected static final int NUM_PARTICLES = 15;
  
      public StripesBackground(Context context) {
          super(context);
          for (int i = 0; i < NUM_PARTICLES; i++) {
              particles.add(new Particle(2f * i / NUM_PARTICLES - 1f, 0, 0, 0));
          }
      }
  
      @Override
      public void draw(@NonNull Canvas canvas) {
          paintParticles.setStrokeWidth(0.05f * getBounds().width());
          super.draw(canvas);
      }
  
      @Override
      protected void drawParticle(@NonNull Canvas canvas, Particle p, float width, float height,
                                  float innerBoxX, float innerBoxY, float innerBoxSize) {
          float strokeWidth = 0.05f * width;
          float x = (float) (width * p.positionX);
          canvas.drawLine(x, -strokeWidth, x + width, height + strokeWidth, paintParticles);
      }
  
      @Override
      protected void particleTick(Particle p, long timeSinceLastFrame) {
          p.positionX += 0.00005 * timeSinceLastFrame;
          if (p.positionX > 1f) {
              p.positionX -= 2f;
          }
      }
  }
  