Spaces:
Running
Running
File size: 1,181 Bytes
9d520b3 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 |
class Utils {
/**
* "Real" modulo (always >= 0), not remainder.
*/
static mod(a: number, n: number): number {
return ((a % n) + n) % n;
}
/**
* Return a random integer between min and max (upper bound is exclusive).
*/
static randomInt(maxOrMin: number, max?: number): number {
return (max)
? maxOrMin + Math.floor(Math.random() * (max - maxOrMin))
: Math.floor(Math.random() * maxOrMin);
}
static randomFloat(maxOrMin: number, max?: number): number {
return (max)
? maxOrMin + (Math.random() * (max - maxOrMin))
: Math.random() * maxOrMin;
}
/**
* Clamp a val to [min, max]
*/
static clamp(val: number, min: number, max: number): number {
return Math.min(Math.max(min, val), max);
}
/**
* Returns a promise that will resolve after the specified time
* @param ms Number of ms to wait
*/
static delay(ms: number) {
return new Promise((resolve, reject) => {
setTimeout(() => resolve(), ms);
});
}
/**
* Compatibility with iOS' SCNAction.wait()
*/
static wait(duration: number, range: number = 0) {
return this.delay(
duration * 1_000
- range * 1_000 / 2
+ this.randomInt(range * 1_000)
);
}
}
|