1 files changed, 88 insertions, 0 deletions
diff --git a/src/cereader_tool.c b/src/cereader_tool.c
new file mode 100644
index 000000000..1b25f4828
--- /dev/null
+++ b/src/cereader_tool.c
@@ -0,0 +1,88 @@
+#include "global.h"
+#include "util.h"
+#include "save.h"
+#include "malloc.h"
+#include "cereader_tool.h"
+
+u8 sub_815D654(void)
+{
+    return (gSaveBlock1Ptr->unkArray[0].unk9 + 1) % 256;
+}
+
+static bool32 ValidateTrainerTowerTrainer(struct TrainerTowerTrainer * trainer)
+{
+    if (trainer->unk_001 < 1 || trainer->unk_001 > 8)
+        return FALSE;
+    if (trainer->unk_002 > 2)
+        return FALSE;
+    if (CalcByteArraySum((const u8 *)trainer, offsetof(typeof(*trainer), checksum)) != trainer->checksum)
+        return FALSE;
+    return TRUE;
+}
+
+bool32 ValidateTrainerTowerData(struct TrainerTowerData * ttdata)
+{
+    u32 count = ttdata->count;
+    s32 i;
+    if (count < 1 || count > 8)
+        return FALSE;
+    for (i = 0; i < count; i++)
+    {
+        if (!ValidateTrainerTowerTrainer(&ttdata->trainers[i]))
+            return FALSE;
+    }
+    if (CalcByteArraySum((const u8 *)ttdata->trainers, count * sizeof(ttdata->trainers[0])) != ttdata->checksum)
+        return FALSE;
+    return TRUE;
+}
+
+#define SEC30_SIZE  (offsetof(struct TrainerTowerData, trainers[4]))
+#define SEC31_SIZE  (sizeof(struct TrainerTowerData) - SEC30_SIZE)
+
+static bool32 CEReaderTool_SaveTrainerTower_r(struct TrainerTowerData * ttdata, u8 * buffer)
+{
+    AGB_ASSERT_EX(ttdata->dummy == 0, "C:/WORK/POKeFRLG/src/pm_lgfr_ose/source/cereader_tool.c", 198);
+    AGB_ASSERT_EX(ttdata->id == 0, "C:/WORK/POKeFRLG/src/pm_lgfr_ose/source/cereader_tool.c", 199)
+
+    memset(buffer, 0, 0x1000);
+    memcpy(buffer, ttdata, SEC30_SIZE);
+    buffer[1] = sub_815D654();
+    if (TryWriteSpecialSaveSection(30, buffer) != TRUE)
+        return FALSE;
+    memset(buffer, 0, 0x1000);
+    memcpy(buffer, (u8 *)ttdata + SEC30_SIZE, SEC31_SIZE);
+    if (TryWriteSpecialSaveSection(31, buffer) != TRUE)
+        return FALSE;
+    return TRUE;
+}
+
+bool32 CEReaderTool_SaveTrainerTower(struct TrainerTowerData * ttdata)
+{
+    u8 * buffer = AllocZeroed(0x1000);
+    bool32 result = CEReaderTool_SaveTrainerTower_r(ttdata, buffer);
+    Free(buffer);
+    return result;
+}
+
+static bool32 CEReaderTool_LoadTrainerTower_r(struct TrainerTowerData * ttdata, void * buffer)
+{
+    if (TryCopySpecialSaveSection(30, buffer) != 1)
+        return FALSE;
+    memcpy(ttdata + 0x000, buffer, SEC30_SIZE);
+
+    if (TryCopySpecialSaveSection(31, buffer) != 1)
+        return FALSE;
+    memcpy((u8 *)ttdata + SEC30_SIZE, buffer, SEC31_SIZE);
+
+    if (!ValidateTrainerTowerData(ttdata))
+        return FALSE;
+    return TRUE;
+}
+
+bool32 CEReaderTool_LoadTrainerTower(struct TrainerTowerData * ttdata)
+{
+    void * buffer = AllocZeroed(0x1000);
+    bool32 success = CEReaderTool_LoadTrainerTower_r(ttdata, buffer);
+    Free(buffer);
+    return success;
+}