1 files changed, 160 insertions, 0 deletions
diff --git a/src/wonder_news.c b/src/wonder_news.c
new file mode 100644
index 000000000..ec93d293e
--- /dev/null
+++ b/src/wonder_news.c
@@ -0,0 +1,160 @@
+#include "global.h"
+#include "mystery_gift.h"
+#include "random.h"
+#include "event_data.h"
+#include "wonder_news.h"
+
+/*
+    Wonder News related functions.
+    Because this feature is largely unused, the names in here are
+    mostly nebulous and without a real indication of purpose.
+*/
+
+enum {
+    NEWS_VAL_INVALID,
+    NEWS_VAL_RECV_FRIEND,
+    NEWS_VAL_RECV_WIRELESS,
+    NEWS_VAL_NONE,
+    NEWS_VAL_SENT,
+    NEWS_VAL_SENT_MAX,
+    NEWS_VAL_GET_MAX,
+};
+
+static u32 GetNewsId(struct WonderNewsMetadata *);
+static void IncrementGetNewsCounter(struct WonderNewsMetadata *);
+static u32 GetNewsValByNewsType(struct WonderNewsMetadata *);
+static void IncrementSentNewsCounter(struct WonderNewsMetadata *);
+static void ResetSentNewsCounter(struct WonderNewsMetadata *);
+
+void GenerateRandomWonderNews(u32 newsType)
+{
+    struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
+
+    data->newsType = newsType;
+    switch (newsType)
+    {
+    case WONDER_NEWS_NONE:
+        break;
+    case WONDER_NEWS_RECV_FRIEND:
+    case WONDER_NEWS_RECV_WIRELESS:
+        data->rand = (Random() % 15) + 16;
+        break;
+    case WONDER_NEWS_SENT:
+        data->rand = (Random() % 15) + 1;
+        break;
+    }
+}
+
+void InitSavedWonderNews(void)
+{
+    struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
+
+    data->newsType = WONDER_NEWS_NONE;
+    data->sentCounter = 0;
+    data->getCounter = 0;
+    data->rand = 0;
+    VarSet(VAR_WONDER_NEWS_COUNTER, 0);
+}
+
+// Unused
+static void TryIncrementWonderNewsVar(void)
+{
+    u16 *var = GetVarPointer(VAR_WONDER_NEWS_COUNTER);
+    struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
+
+    if (data->getCounter > 4 && ++(*var) >= 500)
+    {
+        data->getCounter = 0;
+        *var = 0;
+    }
+}
+
+// Unused
+u16 RetrieveWonderNewsVal(void)
+{
+    u16 *result = &gSpecialVar_Result;
+    struct WonderNewsMetadata *data = GetSavedWonderNewsMetadata();
+    u16 newsVal;
+
+    // Checks if Mystery Event is enabled, not Mystery Gift?  
+    if (!IsMysteryEventEnabled() || !ValidateSavedWonderNews())
+        return 0;
+
+    newsVal = GetNewsValByNewsType(data);
+
+    switch (newsVal)
+    {
+    case NEWS_VAL_RECV_FRIEND:
+        *result = GetNewsId(data);
+        break;
+    case NEWS_VAL_RECV_WIRELESS:
+        *result = GetNewsId(data);
+        break;
+    case NEWS_VAL_SENT:
+        *result = GetNewsId(data);
+        IncrementSentNewsCounter(data);
+        break;
+    case NEWS_VAL_SENT_MAX:
+        *result = GetNewsId(data);
+        ResetSentNewsCounter(data);
+        break;
+    case NEWS_VAL_INVALID:
+    case NEWS_VAL_NONE:
+    case NEWS_VAL_GET_MAX:
+        break;
+    }
+
+    return newsVal;
+}
+
+static u32 GetNewsId(struct WonderNewsMetadata *data)
+{
+    u32 id;
+    data->newsType = WONDER_NEWS_NONE;
+    id = data->rand + 132;
+    data->rand = 0;
+    IncrementGetNewsCounter(data);
+    return id;
+}
+
+static void ResetSentNewsCounter(struct WonderNewsMetadata *data)
+{
+    data->sentCounter = 0;
+}
+
+static void IncrementSentNewsCounter(struct WonderNewsMetadata *data)
+{
+    data->sentCounter++;
+    if (data->sentCounter > 4)
+        data->sentCounter = 4;
+}
+
+static void IncrementGetNewsCounter(struct WonderNewsMetadata *data)
+{
+    data->getCounter++;
+    if (data->getCounter > 5)
+        data->getCounter = 5;
+}
+
+static u32 GetNewsValByNewsType(struct WonderNewsMetadata *data)
+{
+    if (data->getCounter == 5)
+        return NEWS_VAL_GET_MAX;
+
+    switch (data->newsType)
+    {
+    case WONDER_NEWS_NONE:
+        return NEWS_VAL_NONE;
+    case WONDER_NEWS_RECV_FRIEND:
+        return NEWS_VAL_RECV_FRIEND;
+    case WONDER_NEWS_RECV_WIRELESS:
+        return NEWS_VAL_RECV_WIRELESS;
+    case WONDER_NEWS_SENT:
+        if (data->sentCounter < 3)
+            return NEWS_VAL_SENT;
+        return NEWS_VAL_SENT_MAX;
+    default:
+        AGB_ASSERT(0);
+        return NEWS_VAL_INVALID;
+    }
+}