- return {
- delay: params.delay || 0,
- duration: params.duration || 400,
- easing: params.easing || sineOut,
- css: (t: number): string => {
-
- const halfWidth = originalWidth / 2;
- const halfHeight = originalHeight / 2;
- const height = Math.round(t <= 0.2 ? (originalHeight * t) / 0.2 : originalHeight);
- const marginY = Math.round(t <= 0.2 ? halfHeight * (1 - t / 0.2) : 0);
- const width = Math.round(t > 0.2 ? ((t - 0.2) / 0.8) * originalWidth : 0);
- const marginX = Math.round(t > 0.2 ? (1 - (t - 0.2) / 0.8) * halfWidth : halfWidth);
-
- return `width: ${width}px; height: ${height}px; margin: ${marginY}px ${marginX}px`;
- }
- };