random.h

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#ifndef RANDOM_H
#define RANDOM_H
 
#include <tonc.h>
 
enum RngSequence
{
    RNG_SEQ_CARD_SHUFFLE,
    RNG_SEQ_BLIND,
    RNG_SEQ_SHOP_ITEMS,
    RNG_SEQ_SKIP_TAGS,
 
    // Each Joker/Tag with a random effect has its own independent RNG sequence
    RNG_SEQ_JOKER_MISPRINT,
    RNG_SEQ_JOKER_RESERVED_PARKING,
    RNG_SEQ_JOKER_BUSINESS_CARD,
    RNG_SEQ_TAG_TOP_UP,
 
    // For non-gameplay related things such as sound effects or visual effects, so as to not
    // interfere with important stuff like Shop rolls or Joker effects.
    RNG_SEQ_MISC,
 
    RNG_SEQ_MAX
};
 
typedef struct
{
    u32 seed;
    u32 states[RNG_SEQ_MAX];
} RngInfo;
 
void rng_init(void);
 
void rng_update(void);
 
void rng_set_seed(u32 seed);
 
void rng_shuffle_seed(void);
 
u32 rng_get_u32(enum RngSequence key);
 
void rng_restore(RngInfo info);
 
#endif // RANDOM_H