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if ( settings.easing === 'easeInQuad' ) pattern = time * time; // accelerating from zero velocity
if ( settings.easing === 'easeOutQuad' ) pattern = time * (2 - time); // decelerating to zero velocity
if ( settings.easing === 'easeInOutQuad' ) pattern = time < 0.5 ? 2 * time * time : -1 + (4 - 2 * time) * time; // acceleration until halfway, then deceleration
if ( settings.easing === 'easeInCubic' ) pattern = time * time * time; // accelerating from zero velocity
if ( settings.easing === 'easeOutCubic' ) pattern = (--time) * time * time + 1; // decelerating to zero velocity
if ( settings.easing === 'easeInOutCubic' ) pattern = time < 0.5 ? 4 * time * time * time : (time - 1) * (2 * time - 2) * (2 * time - 2) + 1; // acceleration until halfway, then deceleration
if ( settings.easing === 'easeInQuart' ) pattern = time * time * time * time; // accelerating from zero velocity
if ( settings.easing === 'easeOutQuart' ) pattern = 1 - (--time) * time * time * time; // decelerating to zero velocity
if ( settings.easing === 'easeInOutQuart' ) pattern = time < 0.5 ? 8 * time * time * time * time : 1 - 8 * (--time) * time * time * time; // acceleration until halfway, then deceleration
if ( settings.easing === 'easeInQuint' ) pattern = time * time * time * time * time; // accelerating from zero velocity
if ( settings.easing === 'easeOutQuint' ) pattern = 1 + (--time) * time * time * time * time; // decelerating to zero velocity
if ( settings.easing === 'easeInOutQuint' ) pattern = time < 0.5 ? 16 * time * time * time * time * time : 1 + 16 * (--time) * time * time * time * time; // acceleration until halfway, then deceleration
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