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Add quadratic, cubing, quartic eases #631

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Add quadratic, cubing, quartic eases #631

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45 changes: 45 additions & 0 deletions haxe/ui/styles/EasingFunction.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -25,4 +25,49 @@ enum abstract EasingFunction(String) from String {
Specifies an animation with a slow start and end.
**/
var EASE_IN_OUT = "easeInOut";

/**
Specifies an animation with a quadratic slow start.
**/
var QUAD_IN = "quadIn";

/**
Specifies an animation with a quadratic slow end.
**/
var QUAD_OUT = "quadOut";

/**
Specifies an animation with a quadratic slow start and end.
**/
var QUAD_IN_OUT = "quadInOut";

/**
Specifies an animation with a cubic slow start.
**/
var CUBIC_IN = "cubicIn";

/**
Specifies an animation with a cubic slow end.
**/
var CUBIC_OUT = "cubicOut";

/**
Specifies an animation with a cubic slow start and end.
**/
var CUBIC_IN_OUT = "cubicInOut";

/**
Specifies an animation with a quartic slow start.
**/
var QUART_IN = "quartIn";

/**
Specifies an animation with a quartic slow end.
**/
var QUART_OUT = "quartOut";

/**
Specifies an animation with a quartic slow start and end.
**/
var QUART_IN_OUT = "quartInOut";
}
10 changes: 8 additions & 2 deletions haxe/ui/styles/animation/Animation.hx
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Expand Up @@ -312,8 +312,14 @@ class Animation {

private function _getReverseEasingFunction(easingFunction:EasingFunction):EasingFunction {
return switch (easingFunction) {
case EasingFunction.EASE_OUT: EasingFunction.EASE_IN;
case EasingFunction.EASE_IN: EasingFunction.EASE_OUT;
case EasingFunction.QUAD_OUT: EasingFunction.QUAD_IN;
case EasingFunction.QUAD_IN: EasingFunction.QUAD_OUT;
case EasingFunction.CUBIC_OUT: EasingFunction.CUBIC_IN;
case EasingFunction.CUBIC_IN: EasingFunction.CUBIC_OUT;
case EasingFunction.EASE_OUT: EasingFunction.EASE_IN;
case EasingFunction.EASE_IN: EasingFunction.EASE_OUT;
case EasingFunction.QUART_OUT: EasingFunction.QUART_IN;
case EasingFunction.QUART_IN: EasingFunction.QUART_OUT;
case _: easingFunction;
}
}
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54 changes: 45 additions & 9 deletions haxe/ui/styles/animation/util/Actuator.hx
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Expand Up @@ -389,28 +389,64 @@ private class Ease {
return switch (easingFunction) {
case EasingFunction.LINEAR:
linear;
case EasingFunction.EASE, EasingFunction.EASE_IN_OUT:
easeInOut;
case EasingFunction.EASE_IN:
easeIn;
case EasingFunction.EASE_OUT:
easeOut;
case EasingFunction.QUAD_IN:
quadIn;
case EasingFunction.QUAD_OUT:
quadOut;
case EasingFunction.QUAD_IN_OUT:
quadInOut;
case EasingFunction.EASE, EasingFunction.EASE_IN_OUT, EasingFunction.CUBIC_IN_OUT:
cubicInOut;
case EasingFunction.EASE_IN, EasingFunction.CUBIC_IN:
cubicIn;
case EasingFunction.EASE_OUT, EasingFunction.CUBIC_OUT:
cubicOut;
case EasingFunction.QUART_IN:
quartIn;
case EasingFunction.QUART_OUT:
quartOut;
case EasingFunction.QUART_IN_OUT:
quartInOut;
}
}

public static function linear(k:Float):Float {
return k;
}

public static function quadIn(k:Float):Float {
return k * k;
}

public static function quadOut(k:Float):Float {
return -k * (k - 2);
}

public static function quadInOut(k:Float):Float {
return k <= .5 ? k * k * 2 : 1 - (--k) * k * 2;
}

public static function easeIn(k:Float):Float {
public static function cubicIn(k:Float):Float {
return k * k * k;
}

public static function easeOut(k:Float):Float {
public static function cubicOut(k:Float):Float {
return --k * k * k + 1;
}

public static function easeInOut(k:Float):Float {
public static function cubicInOut(k:Float):Float {
return ((k /= 1 / 2) < 1) ? 0.5 * k * k * k : 0.5 * ((k -= 2) * k * k + 2);
}

public static function quartIn(k:Float):Float {
return k * k * k * k;
}

public static function quartOut(k:Float):Float {
return 1 - (k -= 1) * k * k * k;
}

public static function quartInOut(k:Float):Float {
return k <= .5 ? k * k * k * k * 8 : (1 - (k = k * 2 - 2) * k * k * k) / 2 + .5;
}
}