DBot/kommons
DBot/kommons
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Un-final properties and methods of random generators

Browse Source
This commit is contained in:
DBotThePony 2025-03-08 16:40:03 +07:00
parent 5bd1717636
commit ed8a5edcda
Signed by: DBot
GPG Key ID: DCC23B5715498507
4 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
gradle.properties
View File

@ -4,7 +4,7 @@ kotlin.code.style=official
specifyKotlinAsDependency=false specifyKotlinAsDependency=false
projectGroup=ru.dbotthepony.kommons projectGroup=ru.dbotthepony.kommons
projectVersion=3.2.0 projectVersion=3.2.1
guavaDepVersion=33.0.0 guavaDepVersion=33.0.0
gsonDepVersion=2.8.9 gsonDepVersion=2.8.9

6
src/main/kotlin/ru/dbotthepony/kommons/random/LCG64Random.kt
View File

@ -8,14 +8,14 @@ import java.util.random.RandomGenerator
* Internal state is presented as 64-bit integer, and high-order bits of internal state are * Internal state is presented as 64-bit integer, and high-order bits of internal state are
* used to generate numbers. * used to generate numbers.
*/ */
open class LCG64Random(private var seed: Long) : RandomGenerator { open class LCG64Random(protected var seed: Long) : RandomGenerator {
final override fun nextLong(): Long { override fun nextLong(): Long {
val a = nextInt().toLong() val a = nextInt().toLong()
val b = nextInt().toLong() and 0xFFFFFFFFL val b = nextInt().toLong() and 0xFFFFFFFFL
return a.shl(32) or b return a.shl(32) or b
} }
final override fun nextInt(): Int { override fun nextInt(): Int {
this.seed = MULTIPLIER * this.seed + INCREMENT this.seed = MULTIPLIER * this.seed + INCREMENT
return this.seed.ushr(32).toInt() return this.seed.ushr(32).toInt()
} }

10
src/main/kotlin/ru/dbotthepony/kommons/random/Xoshiro256PlusPlusRandom.kt
View File

@ -3,10 +3,10 @@ package ru.dbotthepony.kommons.random
import java.util.random.RandomGenerator import java.util.random.RandomGenerator
open class Xoshiro256PlusPlusRandom protected constructor( open class Xoshiro256PlusPlusRandom protected constructor(
private var s0: Long, protected var s0: Long,
private var s1: Long, protected var s1: Long,
private var s2: Long, protected var s2: Long,
private var s3: Long, protected var s3: Long,
mark: Nothing? mark: Nothing?
) : RandomGenerator { ) : RandomGenerator {
init { init {
@ -32,7 +32,7 @@ open class Xoshiro256PlusPlusRandom protected constructor(
s3 = rng.nextLong() s3 = rng.nextLong()
} }
final override fun nextLong(): Long { override fun nextLong(): Long {
val result = (s0 + s3).rotateLeft(23) + s1 val result = (s0 + s3).rotateLeft(23) + s1
val t = s1.shl(17) val t = s1.shl(17)
s2 = s2.xor(s0) s2 = s2.xor(s0)

10
src/main/kotlin/ru/dbotthepony/kommons/random/Xoshiro256StarStarRandom.kt
View File

@ -3,10 +3,10 @@ package ru.dbotthepony.kommons.random
import java.util.random.RandomGenerator import java.util.random.RandomGenerator
open class Xoshiro256StarStarRandom protected constructor( open class Xoshiro256StarStarRandom protected constructor(
private var s0: Long, protected var s0: Long,
private var s1: Long, protected var s1: Long,
private var s2: Long, protected var s2: Long,
private var s3: Long, protected var s3: Long,
mark: Nothing? mark: Nothing?
) : RandomGenerator { ) : RandomGenerator {
init { init {
@ -32,7 +32,7 @@ open class Xoshiro256StarStarRandom protected constructor(
s3 = rng.nextLong() s3 = rng.nextLong()
} }
final override fun nextLong(): Long { override fun nextLong(): Long {
val result = (s1 * 5).rotateLeft(7) * 9 val result = (s1 * 5).rotateLeft(7) * 9
val t = s1.shl(17) val t = s1.shl(17)
s2 = s2.xor(s0) s2 = s2.xor(s0)