encedit.c

#include "spider.h"
#include "fs.h"

int uvl_entry()
{
    FILE *fin = (void *)0x08F10000;
    int *read_len = 0x08F10020;
    unsigned int addr;
    int *buf = 0x18410000;
    int *encdata = 0x18420000;
    unsigned int offset;
    int i;

    int P1;
    int P2;
    int P3;
    int P4;
    int P5;

    int L1;
    int L2;
    int L3;
    int L4;
    int L5;

    //copy block of memory to buffer
    addr = 0x17A00000;
    GSPGPU_FlushDataCache(addr, 0x10000);
    GX_SetTextureCopy(addr, buf, 0x10000, 0, 0, 0, 0, 8);
    GSPGPU_FlushDataCache(buf, 0x10000);

    //finds the encouter data of Petalburg Woods
    offset = 0;
    for (i = 0; i < 0x4000; i++)
    {
        if ((buf[i] == 0x01070000) && (buf[i + 1] == 0x01070404))
        {
            offset = i;
        }
    }

    //if it found somthing overwrite data
    if (offset != 0)
    {
        IFile_Open(fin, L"dmc:/encdata.bin", FILE_R);
        fin->pos = 0x00;
        IFile_Read(fin, read_len, encdata, 0x28);

        buf[offset] = (encdata[0] << 0x10);
        for (i = (offset + 1); i < (offset + 61); i += 5)
        {
            buf[i] = (encdata[8] << 0x10) + (encdata[1] << 0x08) + encdata[1];
            buf[i + 1] = (encdata[6] << 0x10) + (encdata[9] << 0x08) + encdata[9];
            buf[i + 2] = (encdata[4] << 0x10) + (encdata[7] << 0x08) + encdata[7];
            buf[i + 3] = (encdata[2] << 0x10) + (encdata[5] << 0x08) + encdata[5];
            buf[i + 4] = (encdata[0] << 0x10) + (encdata[3] << 0x08) + encdata[3];
        }
        buf[offset + 61] = (encdata[1] << 0x08) + encdata[1];
    }

    //write back to memory
    svcSleepThread(0x400000LL);
    GSPGPU_FlushDataCache(buf, 0x10000);
    GX_SetTextureCopy(buf, addr, 0x10000, 0, 0, 0, 0, 8);
    GSPGPU_FlushDataCache(addr, 0x10000);
    svcSleepThread(0x400000LL);

    return 0;
}