mirror of
https://github.com/ninjamuffin99/Funkin.git
synced 2024-11-29 18:24:23 +00:00
33 lines
823 B
Haxe
33 lines
823 B
Haxe
package funkin.util.tools;
|
|
|
|
/**
|
|
* @see https://github.com/fponticelli/thx.core/blob/master/src/thx/Int64s.hx
|
|
*/
|
|
class Int64Tools
|
|
{
|
|
static var min = haxe.Int64.make(0x80000000, 0);
|
|
static var one = haxe.Int64.make(0, 1);
|
|
static var two = haxe.Int64.ofInt(2);
|
|
static var zero = haxe.Int64.make(0, 0);
|
|
static var ten = haxe.Int64.ofInt(10);
|
|
|
|
public static function toFloat(i:haxe.Int64):Float
|
|
{
|
|
var isNegative = false;
|
|
if (i < 0)
|
|
{
|
|
if (i < min) return -9223372036854775808.0; // most -ve value can't be made +ve
|
|
isNegative = true;
|
|
i = -i;
|
|
}
|
|
var multiplier = 1.0, ret = 0.0;
|
|
for (_ in 0...64)
|
|
{
|
|
if (haxe.Int64.and(i, one) != zero) ret += multiplier;
|
|
multiplier *= 2.0;
|
|
i = haxe.Int64.shr(i, 1);
|
|
}
|
|
return (isNegative ? -1 : 1) * ret;
|
|
}
|
|
}
|