161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
#include "global.h"
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#include "mystery_gift.h"
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#include "random.h"
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#include "event_data.h"
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#include "wonder_news.h"
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/*
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Wonder News related functions.
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Because this feature is largely unused, the names in here are
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mostly nebulous and without a real indication of purpose.
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*/
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enum {
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NEWS_VAL_INVALID,
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NEWS_VAL_RECV_FRIEND,
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NEWS_VAL_RECV_WIRELESS,
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NEWS_VAL_NONE,
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NEWS_VAL_SENT,
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NEWS_VAL_SENT_MAX,
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NEWS_VAL_GET_MAX,
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};
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static u32 GetNewsId(struct WonderNewsMetadata *);
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static void IncrementGetNewsCounter(struct WonderNewsMetadata *);
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static u32 GetNewsValByNewsType(struct WonderNewsMetadata *);
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static void IncrementSentNewsCounter(struct WonderNewsMetadata *);
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static void ResetSentNewsCounter(struct WonderNewsMetadata *);
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void GenerateRandomWonderNews(u32 newsType)
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{
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struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
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data->newsType = newsType;
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switch (newsType)
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{
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case WONDER_NEWS_NONE:
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break;
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case WONDER_NEWS_RECV_FRIEND:
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case WONDER_NEWS_RECV_WIRELESS:
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data->rand = (Random() % 15) + 16;
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break;
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case WONDER_NEWS_SENT:
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data->rand = (Random() % 15) + 1;
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break;
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}
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}
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void InitSavedWonderNews(void)
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{
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struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
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data->newsType = WONDER_NEWS_NONE;
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data->sentCounter = 0;
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data->getCounter = 0;
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data->rand = 0;
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VarSet(VAR_WONDER_NEWS_COUNTER, 0);
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}
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// Unused
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static void TryIncrementWonderNewsVar(void)
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{
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u16 *var = GetVarPointer(VAR_WONDER_NEWS_COUNTER);
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struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
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if (data->getCounter > 4 && ++(*var) >= 500)
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{
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data->getCounter = 0;
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*var = 0;
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}
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}
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// Unused
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u16 RetrieveWonderNewsVal(void)
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{
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u16 *result = &gSpecialVar_Result;
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struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
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u16 newsVal;
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// Checks if Mystery Event is enabled, not Mystery Gift?
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if (!IsMysteryEventEnabled() || !ValidateSavedWonderNews())
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return 0;
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newsVal = GetNewsValByNewsType(data);
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switch (newsVal)
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{
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case NEWS_VAL_RECV_FRIEND:
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*result = GetNewsId(data);
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break;
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case NEWS_VAL_RECV_WIRELESS:
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*result = GetNewsId(data);
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break;
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case NEWS_VAL_SENT:
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*result = GetNewsId(data);
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IncrementSentNewsCounter(data);
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break;
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case NEWS_VAL_SENT_MAX:
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*result = GetNewsId(data);
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ResetSentNewsCounter(data);
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break;
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case NEWS_VAL_INVALID:
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case NEWS_VAL_NONE:
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case NEWS_VAL_GET_MAX:
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break;
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}
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return newsVal;
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}
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static u32 GetNewsId(struct WonderNewsMetadata *data)
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{
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u32 id;
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data->newsType = WONDER_NEWS_NONE;
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id = data->rand + 132;
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data->rand = 0;
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IncrementGetNewsCounter(data);
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return id;
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}
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static void ResetSentNewsCounter(struct WonderNewsMetadata *data)
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{
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data->sentCounter = 0;
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}
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static void IncrementSentNewsCounter(struct WonderNewsMetadata *data)
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{
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data->sentCounter++;
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if (data->sentCounter > 4)
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data->sentCounter = 4;
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}
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static void IncrementGetNewsCounter(struct WonderNewsMetadata *data)
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{
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data->getCounter++;
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if (data->getCounter > 5)
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data->getCounter = 5;
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}
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static u32 GetNewsValByNewsType(struct WonderNewsMetadata *data)
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{
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if (data->getCounter == 5)
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return NEWS_VAL_GET_MAX;
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switch (data->newsType)
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{
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case WONDER_NEWS_NONE:
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return NEWS_VAL_NONE;
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case WONDER_NEWS_RECV_FRIEND:
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return NEWS_VAL_RECV_FRIEND;
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case WONDER_NEWS_RECV_WIRELESS:
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return NEWS_VAL_RECV_WIRELESS;
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case WONDER_NEWS_SENT:
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if (data->sentCounter < 3)
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return NEWS_VAL_SENT;
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return NEWS_VAL_SENT_MAX;
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default:
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AGB_ASSERT(0);
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return NEWS_VAL_INVALID;
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}
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}
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