kinetic-slider/dist/esm/utils/calculateSpriteScale.js

A WebGL-powered kinetic slider component using PIXI.js

const calculateSpriteScale = (imageWidth, imageHeight, containerWidth, containerHeight) => {
  if (!imageWidth || !imageHeight || !containerWidth || !containerHeight) {
    console.warn("Invalid dimensions for sprite scaling, using fallback scale 1");
    return { scale: 1, baseScale: 1 };
  }
  const imageAspect = imageWidth / imageHeight;
  const containerAspect = containerWidth / containerHeight;
  let scale;
  if (imageAspect > containerAspect) {
    scale = containerHeight / imageHeight;
  } else {
    scale = containerWidth / imageWidth;
  }
  scale = scale * 0.95;
  console.log(
    `Scale calculation: Image (${imageWidth}x${imageHeight}), Container (${containerWidth}x${containerHeight}), Scale: ${scale}`
  );
  return {
    scale,
    baseScale: scale
  };
};

export { calculateSpriteScale };
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