message: fix copy-pasta
diff: @@ -97,13 +97,13 @@ export default class SpaceInvaders implements ICanvasEffect {
  this.context.clearRect(0, 0, this.context.canvas.width, this.context.canvas.height);
  this.lastAnimationTime = Date.now();
  - this.animateAndRenderSnowflakes();
  + this.animateAndRenderInvaders();
  }
  requestAnimationFrame(this.renderLoop);
  }
  };
  - private animateAndRenderSnowflakes() {
  + private animateAndRenderInvaders() {
  if (!this.context || !this.context.canvas) {
  return;
  }
  