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https://github.com/zeldaret/st
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Yanis
5e934a8c9b
* name func_01ffd3d8 and func_01ffd400 * name func_01ffd3b0 * match func_ov024_020cf9d4 + improve the Random struct * UnkStruct_027e0cf8_00_0C_024 45% * match PassengerManager::GetRandomIndex * UnkStruct_027e0cf8_00_0C_024 OK * UnkStruct_027e0cf8_00_0C_024: do other sections * UnkStruct_027e0cf8_08_024 55% * cleanup: remplace delete into null by the delete macro * UnkStruct_027e0cf8_08_024 OK * fix build issues * UnkStruct_ov024_020d86a0_024 OK * PlayerActor_A0_38_024 .text OK, CreditsEndingType OK * tools: create courselist.py to convert .CLB data to yaml * UnkDataStruct4_14 OK * UnkDataStruct4 17% * UnkDataStruct4 OK * MiscAdvManager OK * PassengerManager OK * fix build issues * ZeldaTrainBinary OK * mark PassengerManager as complete and adjust delinks * UnkStruct_027e0cf8_08_00_024 OK * document more of UnkStruct_027e0ce0 * savefile hotfixes * UnkStruct_027e0ce0_34_024 OK * code_020d46b4_024 OK * UnkStruct_027e0d00 & UnkStruct_027e0d00_20 OK * code_020d51dc_024 OK * fix weird formatting * UnkTrainSystem1 OK * fix jp broken match * UnkTrainSystem2 OK * UnkStruct_027e0d08_024 31% * fix build issues * UnkStruct_027e0d08 OK!!! * remove useless parenthesis * ActorUnk_ov000_020a8bb0_EC OK * move ActorUnk_ov000_020a8bb0_EC to MainGame/Actor/ * ActorUnkOBPC OK * add sjiswrap support * solve remaining gaps and fix build issues * reorganise files + counter docs * tools: remove format command execution from defaults
98 lines
2.0 KiB
C++
98 lines
2.0 KiB
C++
#pragma once
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#include "global.h"
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#include "math.hpp"
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#include "types.h"
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struct Random {
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/* 00 */ u16 mRandomValue[4];
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/* 08 */ u64 mFactor;
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/* 10 */ u64 mAddend;
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/* 18 */
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/**
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* @brief Gets the seed's value
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*/
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u64 GetRandomValue() {
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return *(u64 *) this->mRandomValue;
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}
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/**
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* @brief Sets the seed's value from a u64
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*/
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void SetRandomValue(u64 value) {
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*(u64 *) this->mRandomValue = value;
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}
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/**
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* @brief Sets the seed's value from a u16 array
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*/
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void SetRandomValue(u16 *value) {
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this->SetRandomValue(*(u64 *) value);
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}
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/**
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* @brief Setup the randomizer with a set seed as a u64
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*/
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void Setup(u64 initial) {
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this->SetRandomValue(initial);
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this->SetFactorAddend();
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}
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/**
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* @brief Setup the randomizer with a set seed as a u16 array
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*/
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void Setup(u16 *initial) {
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this->SetRandomValue(initial);
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this->SetFactorAddend();
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}
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/**
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* @brief Setup the randomizer without any specific seed
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*/
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void Setup() {
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this->SetRandomValue((u64) 0);
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this->SetFactorAddend();
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}
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/**
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* @brief Sets the factor and addend values
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*/
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void SetFactorAddend() {
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this->mFactor = 0x5D588B656C078965;
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this->mAddend = 0x00269EC3;
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}
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/**
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* @brief Updates the seed's value
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*/
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void UpdateRandomValue() {
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*(u64 *) this->mRandomValue = this->mAddend + (this->mFactor * this->GetRandomValue());
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}
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/**
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* @brief Generates a random number as u32
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*/
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u32 Next32(u32 factor) {
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this->UpdateRandomValue();
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u64 randomValue = this->GetRandomValue();
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if (factor == 0) {
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return randomValue >> 32;
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}
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return ((randomValue >> 32) * factor) >> 32;
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}
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/**
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* @brief Generates a random number as u32 then convert it to a u16
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*/
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u16 Next16(u32 factor) {
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return this->Next32(factor) >> 16;
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}
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void Init();
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};
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extern Random gRandom;
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