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‎src/Ease.php

Lines changed: 193 additions & 152 deletions
Original file line numberDiff line numberDiff line change
@@ -4,166 +4,207 @@
44

55
/**
66
* Ease
7-
*
7+
*
88
* Returns a string which will evaluate to a value between 0 and 1.
99
* This allows us to multiply the _change_ in value by the chosen
1010
* easing function to get the actual value at a given time.
11-
*
11+
*
1212
* (paraphrased from easings.net)
1313
* The argument `$time` should be a `string` which represents the absolute
1414
* progress of the animation in the bounds of 0 (beginning of the animation)
1515
* and 1 (end of animation).
1616
*/
1717
class Ease
1818
{
19-
public static function Linear(string $time): string {
20-
return $time;
21-
}
22-
23-
public static function EaseInSine(string $time): string {
24-
return "1-cos((({$time})*PI)/2)";
25-
}
26-
27-
public static function EaseOutSine(string $time): string {
28-
return "sin((({$time})*PI)/2)";
29-
}
30-
31-
public static function EaseInOutSine(string $time): string {
32-
return "-(cos(PI*({$time}))-1)/2";
33-
}
34-
35-
public static function EaseInQuad(string $time): string {
36-
return "pow(({$time})\\,2)";
37-
}
38-
39-
public static function EaseOutQuad(string $time): string {
40-
return "1-(1-({$time}))*(1-({$time}))";
41-
}
42-
43-
public static function EaseInOutQuad(string $time): string {
44-
return "if(lt(({$time})\\,0.5)\\,2*pow(({$time})\\,2)\\,1-pow(-2*({$time})+2\\,2)/2)";
45-
}
46-
47-
public static function EaseInCubic(string $time): string {
48-
return "pow(({$time})\\,3)";
49-
}
50-
51-
public static function EaseOutCubic(string $time): string {
52-
return "1-pow(1-({$time})\\,3)";
53-
}
54-
55-
public static function EaseInOutCubic(string $time): string {
56-
return "if(lt(({$time})\\,0.5)\\,4*pow(({$time})\\,3)\\,1-pow(-2*({$time})+2\\,3)/2)";
57-
}
58-
59-
public static function EaseInQuart(string $time): string {
60-
return "pow(({$time})\\,4)";
61-
}
62-
63-
public static function EaseOutQuart(string $time): string {
64-
return "1-pow(1-({$time})\\,4)";
65-
}
66-
67-
public static function EaseInOutQuart(string $time): string {
68-
return "if(lt(({$time})\\,0.5)\\,8*pow(({$time})\\,4)\\,1-pow(-2*({$time})+2\\,4)/2)";
69-
}
70-
71-
public static function EaseInQuint(string $time): string {
72-
return "pow(({$time})\\,5)";
73-
}
74-
75-
public static function EaseOutQuint(string $time): string {
76-
return "1-pow(1-({$time})\\,5)";
77-
}
78-
79-
public static function EaseInOutQuint(string $time): string {
80-
return "if(lt(({$time})\\,0.5)\\,16*pow(({$time})\\,5)\\,1-pow(-2*({$time})+2\\,5)/2)";
81-
}
82-
83-
public static function EaseInExpo(string $time): string {
84-
return "if(eq(({$time})\\,0)\\,0\\,pow(2\\,10*({$time})-10))";
85-
}
86-
87-
public static function EaseOutExpo(string $time): string {
88-
return "if(eq(({$time})\\,1)\\,1\\,1-pow(2\\,-10*({$time})))";
89-
}
90-
91-
public static function EaseInOutExpo(string $time): string {
92-
$firstExp = "pow(2\\,20*({$time})-10)/2";
93-
$secondExp = "(2-pow(2\\,-20*({$time})+10))/2";
94-
return "if(eq(({$time})\\,0)\\,0\\,(if(eq(({$time})\\,1)\\,1\\,if(lt(({$time})\\,0.5)\\,pow(2\\,20*({$firstExp})-10)/2)\\,(2-pow(2\\,-20*({$secondExp})+10))/2)))";
95-
}
96-
97-
public static function EaseInCirc(string $time): string {
98-
return "1-sqrt(1-pow(({$time})\\,2))";
99-
}
100-
101-
public static function EaseOutCirc(string $time): string {
102-
return "sqrt(1-pow(({$time})-1\\,2))";
103-
}
104-
105-
public static function EaseInOutCirc(string $time): string {
106-
return "if(lt(({$time})\\,0.5)\\,(1-sqrt(1-pow(2*({$time})\\,2)))/2\\,(sqrt(1-pow(-2*({$time})+2\\,2))+1)/2)";
107-
}
108-
109-
public static function EaseInBack(string $time): string {
110-
$c1 = 1.70158;
111-
$c3 = $c1 + 1;
112-
return "{$c1}*pow(({$time})\\,3)-{$c3}*pow(({$time})\\,2)";
113-
}
114-
115-
public static function EaseOutBack(string $time): string {
116-
$c1 = 1.70158;
117-
$c3 = $c1 + 1;
118-
return "1+{$c3}*pow(({$time})-1\\,3)+{$c1}*pow(({$time})-1\\,2)";
119-
}
120-
121-
public static function EaseInOutBack(string $time): string {
122-
$c1 = 1.70158;
123-
$c2 = $c1 * 1.525;
124-
return "if(lt(({$time})\\,0.5)\\,(pow(2*({$time})\\,2)*(({$c2}+1)*2*({$time})-{$c2}))/2\\,(pow(2*({$time})-2\\,2)*(({$c2}+1)*(({$time})*2-2)+{$c2})+2)/2)";
125-
}
126-
127-
public static function EaseInElastic(string $time): string {
128-
$c4 = (2 * M_PI) / 3;
129-
return "if(eq(({$time})\\,0)\\,0\\,if(eq(({$time})\\,1)\\,1\\,-pow(2\\,10*({$time})-10)*sin(({$time})*10-10.75)*{$c4}))";
130-
}
131-
132-
public static function EaseOutElastic(string $time): string {
133-
$c4 = (2 * M_PI) / 3;
134-
return "if(eq(({$time})\\,0)\\,0\\,if(eq(({$time})\\,1)\\,1\\,pow(2\\,-10*({$time}))*sin((({$time})*10-0.75)*{$c4})+1))";
135-
}
136-
137-
public static function EaseInOutElastic(string $time): string {
138-
$c5 = (2 * M_PI) / 4.5;
139-
$ltExpr = "-(pow(2\\,20*({$time})-10)*sin((20*({$time})-11.125)*{$c5}))/2";
140-
$gtExpr = "(pow(2\\,-20*({$time})+10)*sin((20*({$time})-11.125)*{$c5}))/2+1";
141-
return "if(eq(({$time})\\,0)\\,0\\,if(eq(({$time})\\,1)\\,1\\,if(lt(({$time})\\,0.5)\\,{$ltExpr}\\,{$gtExpr})))";
142-
}
143-
144-
public static function EaseInBounce(string $time): string {
145-
$x = self::EaseOutBounce("1-({$time})");
146-
return "1-({$x})";
147-
}
148-
149-
public static function EaseOutBounce(string $time): string {
150-
$n1 = 7.5625;
151-
$d1 = 2.75;
152-
$firstExpr = "{$n1}*pow(({$time})\\,2)";
153-
$secondTime = "(({$time})-1.5)";
154-
$secondExpr = "{$n1}*({$secondTime}/{$d1})*({$secondTime})+0.75";
155-
$thirdTime = "(({$time})-2.25)";
156-
$thirdExpr = "{$n1}*({$thirdTime}/{$d1})*({$thirdTime})+0.9375";
157-
$fourthTime = "(({$time})-2.65)";
158-
$fourthExpr = "{$n1}*({$fourthTime}/{$d1})*({$fourthTime})+0.984375";
159-
return "if(lt(({$time})\\, 1/{$d1})\\,{$firstExpr}\\,if(lt(({$time})\\,2/{$d1})\\,{$secondExpr}\\,if(lt(({$time})\\,2.5/{$d1})\\,{$thirdExpr}\\,{$fourthExpr})))";
160-
}
161-
162-
public static function EaseInOutBounce(string $time): string {
163-
$x1 = self::EaseOutBounce("1-2*({$time})");
164-
$x2 = self::EaseOutBounce("2*({$time})-1");
165-
$gtExpr = "(1-({$x1}))/2";
166-
$ltExpr = "(1+({$x2}))/2";
167-
return "if(lt(({$time})\\,0.5)\\,{$ltExpr}\\,{$gtExpr}";
168-
}
19+
public static function Linear(string $time): string
20+
{
21+
return $time;
22+
}
23+
24+
public static function EaseInSine(string $time): string
25+
{
26+
return "1-cos((({$time})*PI)/2)";
27+
}
28+
29+
public static function EaseOutSine(string $time): string
30+
{
31+
return "sin((({$time})*PI)/2)";
32+
}
33+
34+
public static function EaseInOutSine(string $time): string
35+
{
36+
return "-(cos(PI*({$time}))-1)/2";
37+
}
38+
39+
public static function EaseInQuad(string $time): string
40+
{
41+
return "pow(({$time})\\,2)";
42+
}
43+
44+
public static function EaseOutQuad(string $time): string
45+
{
46+
return "1-(1-({$time}))*(1-({$time}))";
47+
}
48+
49+
public static function EaseInOutQuad(string $time): string
50+
{
51+
return "if(lt(({$time})\\,0.5)\\,2*pow(({$time})\\,2)\\,1-pow(-2*({$time})+2\\,2)/2)";
52+
}
53+
54+
public static function EaseInCubic(string $time): string
55+
{
56+
return "pow(({$time})\\,3)";
57+
}
58+
59+
public static function EaseOutCubic(string $time): string
60+
{
61+
return "1-pow(1-({$time})\\,3)";
62+
}
63+
64+
public static function EaseInOutCubic(string $time): string
65+
{
66+
return "if(lt(({$time})\\,0.5)\\,4*pow(({$time})\\,3)\\,1-pow(-2*({$time})+2\\,3)/2)";
67+
}
68+
69+
public static function EaseInQuart(string $time): string
70+
{
71+
return "pow(({$time})\\,4)";
72+
}
73+
74+
public static function EaseOutQuart(string $time): string
75+
{
76+
return "1-pow(1-({$time})\\,4)";
77+
}
78+
79+
public static function EaseInOutQuart(string $time): string
80+
{
81+
return "if(lt(({$time})\\,0.5)\\,8*pow(({$time})\\,4)\\,1-pow(-2*({$time})+2\\,4)/2)";
82+
}
83+
84+
public static function EaseInQuint(string $time): string
85+
{
86+
return "pow(({$time})\\,5)";
87+
}
88+
89+
public static function EaseOutQuint(string $time): string
90+
{
91+
return "1-pow(1-({$time})\\,5)";
92+
}
93+
94+
public static function EaseInOutQuint(string $time): string
95+
{
96+
return "if(lt(({$time})\\,0.5)\\,16*pow(({$time})\\,5)\\,1-pow(-2*({$time})+2\\,5)/2)";
97+
}
98+
99+
public static function EaseInExpo(string $time): string
100+
{
101+
return "if(eq(({$time})\\,0)\\,0\\,pow(2\\,10*({$time})-10))";
102+
}
103+
104+
public static function EaseOutExpo(string $time): string
105+
{
106+
return "if(eq(({$time})\\,1)\\,1\\,1-pow(2\\,-10*({$time})))";
107+
}
108+
109+
public static function EaseInOutExpo(string $time): string
110+
{
111+
$firstExp = "pow(2\\,20*({$time})-10)/2";
112+
$secondExp = "(2-pow(2\\,-20*({$time})+10))/2";
113+
114+
return "if(eq(({$time})\\,0)\\,0\\,(if(eq(({$time})\\,1)\\,1\\,if(lt(({$time})\\,0.5)\\,pow(2\\,20*({$firstExp})-10)/2)\\,(2-pow(2\\,-20*({$secondExp})+10))/2)))";
115+
}
116+
117+
public static function EaseInCirc(string $time): string
118+
{
119+
return "1-sqrt(1-pow(({$time})\\,2))";
120+
}
121+
122+
public static function EaseOutCirc(string $time): string
123+
{
124+
return "sqrt(1-pow(({$time})-1\\,2))";
125+
}
126+
127+
public static function EaseInOutCirc(string $time): string
128+
{
129+
return "if(lt(({$time})\\,0.5)\\,(1-sqrt(1-pow(2*({$time})\\,2)))/2\\,(sqrt(1-pow(-2*({$time})+2\\,2))+1)/2)";
130+
}
131+
132+
public static function EaseInBack(string $time): string
133+
{
134+
$c1 = 1.70158;
135+
$c3 = $c1 + 1;
136+
137+
return "{$c1}*pow(({$time})\\,3)-{$c3}*pow(({$time})\\,2)";
138+
}
139+
140+
public static function EaseOutBack(string $time): string
141+
{
142+
$c1 = 1.70158;
143+
$c3 = $c1 + 1;
144+
145+
return "1+{$c3}*pow(({$time})-1\\,3)+{$c1}*pow(({$time})-1\\,2)";
146+
}
147+
148+
public static function EaseInOutBack(string $time): string
149+
{
150+
$c1 = 1.70158;
151+
$c2 = $c1 * 1.525;
152+
153+
return "if(lt(({$time})\\,0.5)\\,(pow(2*({$time})\\,2)*(({$c2}+1)*2*({$time})-{$c2}))/2\\,(pow(2*({$time})-2\\,2)*(({$c2}+1)*(({$time})*2-2)+{$c2})+2)/2)";
154+
}
155+
156+
public static function EaseInElastic(string $time): string
157+
{
158+
$c4 = (2 * M_PI) / 3;
159+
160+
return "if(eq(({$time})\\,0)\\,0\\,if(eq(({$time})\\,1)\\,1\\,-pow(2\\,10*({$time})-10)*sin(({$time})*10-10.75)*{$c4}))";
161+
}
162+
163+
public static function EaseOutElastic(string $time): string
164+
{
165+
$c4 = (2 * M_PI) / 3;
166+
167+
return "if(eq(({$time})\\,0)\\,0\\,if(eq(({$time})\\,1)\\,1\\,pow(2\\,-10*({$time}))*sin((({$time})*10-0.75)*{$c4})+1))";
168+
}
169+
170+
public static function EaseInOutElastic(string $time): string
171+
{
172+
$c5 = (2 * M_PI) / 4.5;
173+
$ltExpr = "-(pow(2\\,20*({$time})-10)*sin((20*({$time})-11.125)*{$c5}))/2";
174+
$gtExpr = "(pow(2\\,-20*({$time})+10)*sin((20*({$time})-11.125)*{$c5}))/2+1";
175+
176+
return "if(eq(({$time})\\,0)\\,0\\,if(eq(({$time})\\,1)\\,1\\,if(lt(({$time})\\,0.5)\\,{$ltExpr}\\,{$gtExpr})))";
177+
}
178+
179+
public static function EaseInBounce(string $time): string
180+
{
181+
$x = self::EaseOutBounce("1-({$time})");
182+
183+
return "1-({$x})";
184+
}
185+
186+
public static function EaseOutBounce(string $time): string
187+
{
188+
$n1 = 7.5625;
189+
$d1 = 2.75;
190+
$firstExpr = "{$n1}*pow(({$time})\\,2)";
191+
$secondTime = "(({$time})-1.5)";
192+
$secondExpr = "{$n1}*({$secondTime}/{$d1})*({$secondTime})+0.75";
193+
$thirdTime = "(({$time})-2.25)";
194+
$thirdExpr = "{$n1}*({$thirdTime}/{$d1})*({$thirdTime})+0.9375";
195+
$fourthTime = "(({$time})-2.65)";
196+
$fourthExpr = "{$n1}*({$fourthTime}/{$d1})*({$fourthTime})+0.984375";
197+
198+
return "if(lt(({$time})\\, 1/{$d1})\\,{$firstExpr}\\,if(lt(({$time})\\,2/{$d1})\\,{$secondExpr}\\,if(lt(({$time})\\,2.5/{$d1})\\,{$thirdExpr}\\,{$fourthExpr})))";
199+
}
200+
201+
public static function EaseInOutBounce(string $time): string
202+
{
203+
$x1 = self::EaseOutBounce("1-2*({$time})");
204+
$x2 = self::EaseOutBounce("2*({$time})-1");
205+
$gtExpr = "(1-({$x1}))/2";
206+
$ltExpr = "(1+({$x2}))/2";
207+
208+
return "if(lt(({$time})\\,0.5)\\,{$ltExpr}\\,{$gtExpr}";
209+
}
169210
}

‎src/Enums/Ease.php

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -35,5 +35,4 @@ enum Ease: string
3535
case InBounce = 'EaseInBounce';
3636
case OutBounce = 'EaseOutBounce';
3737
case InOutBounce = 'EaseInOutBounce';
38-
3938
}

‎src/Timing.php

Lines changed: 4 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -6,8 +6,8 @@ class Timing
66
{
77
public function __construct(
88
public float $seconds,
9-
)
10-
{}
9+
) {
10+
}
1111

1212
public static function seconds(float $seconds): self
1313
{
@@ -24,7 +24,8 @@ public static function ms(int $milliseconds): self
2424
return self::milliseconds($milliseconds);
2525
}
2626

27-
public function __toString():string{
27+
public function __toString(): string
28+
{
2829
return (string) $this->seconds;
2930
}
3031
}

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