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fix Random int casting

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This commit is contained in:
LabyStudio
2022-05-12 05:23:03 +02:00
parent db5b113939
commit 70144259d1
1 changed files with 5 additions and 1 deletions
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src/js/net/minecraft/util/Random.js
+5 -1
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@@ -9,6 +9,8 @@ export default class Random {
this.mask = Long.fromInt(1).shiftLeft(48).subtract(1); this.mask = Long.fromInt(1).shiftLeft(48).subtract(1);
this.addend = Long.fromInt(0xB); this.addend = Long.fromInt(0xB);
this.doubleUnit = 1.1102230246251565E-16; this.doubleUnit = 1.1102230246251565E-16;
this.maxInt = Long.fromInt(0x7fffffff);
this.intMask = Long.fromInt(0x80000000);
this.setSeed(seed); this.setSeed(seed);
} }
@@ -51,7 +53,9 @@ export default class Random {
oldSeed = this.seed; oldSeed = this.seed;
nextSeed = oldSeed.multiply(this.multiplier).add(this.addend).and(this.mask); nextSeed = oldSeed.multiply(this.multiplier).add(this.addend).and(this.mask);
} while (!this._compareAndSet(oldSeed, nextSeed)); } while (!this._compareAndSet(oldSeed, nextSeed));
return nextSeed.shiftRight(48 - bits);
let num = nextSeed.shiftRight(48 - bits);
return num.greaterThan(this.maxInt) ? num.or(this.intMask) : num; // Cast to integer
} }
_compareAndSet(expect, update) { _compareAndSet(expect, update) {