Hacking [WIP] MysteriUs

ryuutseku85 · Mar 14, 2016

Hi everyone ,

it's finally the release day!

this is my first homebrew so please be indulgent .

it's still need some minor adjustement but work complety fine .

i use a tricky way to generate a random number.(i will explain later).

i will give my code for the next update with lots of comment , that way beginner can easely understand it and i hope make there own to grow the community.

i post the 550 and 532 in the zip , but i don't have a 532 system to verify if this work.

Comments and Critics are welcome.

Ryuutseku85

The game will be simple :
find the mysterious number , the wiiu will search for a mysterious number , it will ask you what is it , and it will answer , "more" , "less" or "congratulations !!! you win ".
all of you now this game , right ?
so lets begin ,

i have this code
loader.c

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "loader.h"
#include "control.h"


void START ()
{


   asm(
     "lis %r1, 0x1ab5 ;"
     "ori %r1, %r1, 0xd138 ;"
     );

   uint32_t coreinit_handle;
   OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

   void(*OSScreenInit)();
   unsigned int(*OSScreenGetBufferSizeEx)(unsigned int bufferNum);
   unsigned int(*OSScreenSetBufferEx)(unsigned int bufferNum, void * addr);

   void*(*memset)(void * dest, uint32_t value, uint32_t bytes);
   void(*OSFreeToSystem)(void *ptr);
   void* (*OSAllocFromSystem)(uint32_t size, int align);
   OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);

   int(*IM_Open)();
   int(*IM_Close)(int fd);
   int(*IM_SetDeviceState)(int fd, void *mem, int state, int a, int b);
   /****************************>  Exports  <****************************/

   OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenInit", &OSScreenInit);
   OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenGetBufferSizeEx", &OSScreenGetBufferSizeEx);
   OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenSetBufferEx", &OSScreenSetBufferEx);

   OSDynLoad_FindExport(coreinit_handle, 0, "memset", &memset);
   OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);
   OSDynLoad_FindExport(coreinit_handle, 0, "OSFreeToSystem", &OSFreeToSystem);

   OSDynLoad_FindExport(coreinit_handle, 0, "IM_Open", &IM_Open);
   OSDynLoad_FindExport(coreinit_handle, 0, "IM_Close", &IM_Close);
   OSDynLoad_FindExport(coreinit_handle, 0, "IM_SetDeviceState", &IM_SetDeviceState);

   int fd = IM_Open();
   void *mem = OSAllocFromSystem(0x100, 64);
   memset(mem, 0, 0x100);

   IM_SetDeviceState(fd, mem, 3, 0, 0);
   IM_Close(fd);
   OSFreeToSystem(mem);

   unsigned int t1 = 0x1FFFFFFF;
   while(t1--) ;

   OSScreenInit();

   int buf0_size = OSScreenGetBufferSizeEx(0);
   int buf1_size = OSScreenGetBufferSizeEx(1);

   OSScreenSetBufferEx(0, (void *)0xF4000000);
   OSScreenSetBufferEx(1, (void *)0xF4000000 + buf0_size);

   int ii = 0;
   for (ii; ii < 2; ii++)
   {
     fillScreen(0,0,0,0);
     flipBuffers();
   }
   _getIN();
}
void _getIN()
{

   uint32_t coreinit_handle;
   OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

   unsigned int vpad_handle;
   OSDynLoad_Acquire("vpad.rpl", &vpad_handle);

   int(*VPADRead)(int controller, VPADData *buffer, unsigned int num, int *error);

   void(*_Exit)();

   OSDynLoad_FindExport(vpad_handle, 0, "VPADRead", &VPADRead);

   OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);

   VPADData vpad_data;

   int error;

   VPADRead(0, &vpad_data, 1, &error);




  printf("  MysteriU  \n");

  int compteur = 0;

  int nombreentre = 0;

  int nombremystere = 0;

  const int min = 1 ;

  const int max = 10;

  srand(time(NULL));
  nombremystere = (rand()% (max -min +1)+ min);

  printf("what is the mysterious number\n\n");

  compteur++ ;

  scanf("%d" , &nombreentre);

  if(nombreentre < nombremystere)

  printf("it's more \n\n") ;


  if(nombreentre > nombremystere)

  printf("it's less \n\n") ;



  if (nombreentre==nombremystere)

  printf("congrats ! you win!!!\n\n", compteur);
  printf("\n\n\n");

  return 0;
}

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "loader.h"
#include "control.h"


void START ()
{


    asm(
        "lis %r1, 0x1ab5 ;"
        "ori %r1, %r1, 0xd138 ;"
        );

    uint32_t coreinit_handle;
    OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

    void(*OSScreenInit)();
    unsigned int(*OSScreenGetBufferSizeEx)(unsigned int bufferNum);
    unsigned int(*OSScreenSetBufferEx)(unsigned int bufferNum, void * addr);

    void*(*memset)(void * dest, uint32_t value, uint32_t bytes);
    void(*OSFreeToSystem)(void *ptr);
    void* (*OSAllocFromSystem)(uint32_t size, int align);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);

    int(*IM_Open)();
    int(*IM_Close)(int fd);
    int(*IM_SetDeviceState)(int fd, void *mem, int state, int a, int b);
    /****************************>             Exports             <****************************/

    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenInit", &OSScreenInit);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenGetBufferSizeEx", &OSScreenGetBufferSizeEx);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenSetBufferEx", &OSScreenSetBufferEx);

    OSDynLoad_FindExport(coreinit_handle, 0, "memset", &memset);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSFreeToSystem", &OSFreeToSystem);

    OSDynLoad_FindExport(coreinit_handle, 0, "IM_Open", &IM_Open);
    OSDynLoad_FindExport(coreinit_handle, 0, "IM_Close", &IM_Close);
    OSDynLoad_FindExport(coreinit_handle, 0, "IM_SetDeviceState", &IM_SetDeviceState);

    int fd = IM_Open();
    void *mem = OSAllocFromSystem(0x100, 64);
    memset(mem, 0, 0x100);

    IM_SetDeviceState(fd, mem, 3, 0, 0);
    IM_Close(fd);
    OSFreeToSystem(mem);

    unsigned int t1 = 0x1FFFFFFF;
    while(t1--) ;

    OSScreenInit();

    int buf0_size = OSScreenGetBufferSizeEx(0);
    int buf1_size = OSScreenGetBufferSizeEx(1);

    OSScreenSetBufferEx(0, (void *)0xF4000000);
    OSScreenSetBufferEx(1, (void *)0xF4000000 + buf0_size);

    int ii = 0;
    for (ii; ii < 2; ii++)
    {
        fillScreen(0,0,0,0);
        flipBuffers();
    }
    _getIN();
}
void _getIN()
{

    uint32_t coreinit_handle;
    OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

    unsigned int vpad_handle;
    OSDynLoad_Acquire("vpad.rpl", &vpad_handle);

    int(*VPADRead)(int controller, VPADData *buffer, unsigned int num, int *error);

    void(*_Exit)();

    OSDynLoad_FindExport(vpad_handle, 0, "VPADRead", &VPADRead);

    OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);

    VPADData vpad_data;

    int error;

    VPADRead(0, &vpad_data, 1, &error);




    printf("       MYSTERIU           \n");

    int compteur = 0;

    int nombreentre = 0;

    int nombremystere = 0;

    const int min = 1 ;

    const int max = 10;

    srand(time(NULL));
    nombremystere = (rand()% (max -min +1)+ min);

    printf("quel est le nombre secret?\n\n");

    compteur++ ;

    scanf("%d" , &nombreentre);

    if(nombreentre < nombremystere)

        printf("c'est plus\n\n") ;


    if(nombreentre > nombremystere)

        printf("c'est moins\n\n") ;



    if (nombreentre==nombremystere)

        printf("bravo ! tu as trouve le nombre secret en %d fois\n\n", compteur);
        printf("\n\n\n");

    return 0;
}

controller (for later with more choice)

Code:

#define BUTTON_A        0x8000
#define BUTTON_B        0x4000
#define BUTTON_X        0x2000
#define BUTTON_Y        0x1000
#define BUTTON_LEFT     0x0800
#define BUTTON_RIGHT    0x0400
#define BUTTON_UP       0x0200
#define BUTTON_DOWN     0x0100
#define BUTTON_ZL       0x0080
#define BUTTON_ZR       0x0040
#define BUTTON_L        0x0020
#define BUTTON_R        0x0010
#define BUTTON_PLUS     0x0008
#define BUTTON_MINUS    0x0004
#define BUTTON_HOME     0x0002
#define BUTTON_SYNC     0x0001
#define BUTTON_STICK_R  0x00020000
#define BUTTON_STICK_L  0x00040000
#define BUTTON_TV       0x00010000

and loader.h

Code:

#include "../../../../../../../devkitPro/libwiiu/src/coreinit.h"
#include "../../../../../../../devkitPro/libwiiu/src/vpad.h"
#include "../../../../../../../devkitPro/libwiiu/src/draw.h"
#include "../../../../../../../devkitPro/libwiiu/src/string.h"

void _getIN();

the problem is that actually nothing work , i don't know how to wrote something on the screen , and do how to make the player answer . i find i will do an void exit for the end too .

thanks for your help.

mellma · Mar 14, 2016

Not useless. He learn how to develop on wii u and post this homebrew.

Good job.

Shaker78 · Mar 14, 2016

Phenom Jack said:
Nice! Another TOTAL useless homebrew.

Nice! Another TOTAL useless user/human.

ryuutseku85 · Mar 14, 2016

before talking , do you know me ? i don't think! so sh** *p !

Not useless. He learn how to develop on wii u and post this homebrew.

Good job.

thank you , 1 person on 3 respond nicely ... what gbatemp have become ....

pwsincd · Mar 14, 2016

@ryuutseku85 , good on ya , hope you get your issues sorted , i cant help but im impressed your trying good luck.

mellma · Mar 14, 2016

Yeah, it's really hopeful. You must beging somewhere.

Keep on going.

Leanny · Mar 14, 2016

ryuutseku85 said:
i don't know how to wrote something on the screen , and do how to make the player answer . i find i will do an void exit for the end too .

thanks for your help.

For writing you can use __os_snprintf(). Check osscreenexamples/ios for an example. For the answering you can do the following:
0. you need one variable for the number and one for the current position.
1. check for input (up, down, left, right, a)
2a. if left, current position + 1, if right, current position -1.
2b. if up, number = (number-(number/10^position)*(10^position)) + (((number/10^position)%10+1)%10)*10^position, assuming you start at position 0. This basicly just increases the number on a specific position to 1 and in case you leave the current position, it will be resettet to 0.
2c. analog to above, just subtract for down.
2d. for a apply it
3. draw the current number with some arrows. You can do this with simple math for positions

use this just as an idea on how to do it, there is still lots of stuff to do for it to work completly.

ryuutseku85 · Mar 30, 2016

hi ,
can someone explain me how this fu*****g __os_printf work , please?

i made my structure for the button and title

Code:

struct rendertext
{
  int a;
  int b;
  int x;
  int y;
  char output[1000];
};

struct title
{
  int mysteriu;
  int press_a;
  char title[1000];
};

then made my initialisation

Code:

struct rendertext text;
    text.a=0;
    text.b=0;
    text.x=0;
    text.y=0;

    struct title titre;
    titre.mysteriu=0;
    titre.press_a=0;
    while(1)

the i start the game

Code:

just before that we have ou initialisation of both struct

while(1)
    {
        VPADRead(0, &vpad_data, 1, &error);




//game start//

int choice = 0;


do
{choice = 0;

        int Number = 0 ;

        int compteur = 0;

        int nombreentre = 0;

        int nombremystere = 8;

        const int min = 1 ;

        const int max = 10;

        int ask = 0;
     
    do
    {

        __os_snprintf(titre.title,1000,"MysteriU\n");
        __os_snprintf(titre.title,1000,"Press A to play.\n");
        if (vpad_data.btn_trigger && BUTTON_A);
        {
            text.a=1;
        }
    }
    while (text.a!=1);

and i got a blank screen i also try with the drawstring and _printstr
(the only one who actually print something on the screen is _printstr , but i can do anything after that , i think the wiiu just freeze.)

thanks for those who gonna help me.

Code:

#include "loader.h"
#include "control.h"

void _start ()
{


    asm(
        "lis %r1, 0x1ab5 ;"
        "ori %r1, %r1, 0xd138 ;"
        );

    uint32_t coreinit_handle;
    OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

    void(*OSScreenInit)();
    unsigned int(*OSScreenGetBufferSizeEx)(unsigned int bufferNum);
    unsigned int(*OSScreenSetBufferEx)(unsigned int bufferNum, void * addr);

    void*(*memset)(void * dest, uint32_t value, uint32_t bytes);
    void(*OSFreeToSystem)(void *ptr);
    void* (*OSAllocFromSystem)(uint32_t size, int align);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);

    int(*IM_Open)();
    int(*IM_Close)(int fd);
    int(*IM_SetDeviceState)(int fd, void *mem, int state, int a, int b);
    /****************************>             Exports             <****************************/

    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenInit", &OSScreenInit);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenGetBufferSizeEx", &OSScreenGetBufferSizeEx);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenSetBufferEx", &OSScreenSetBufferEx);

    OSDynLoad_FindExport(coreinit_handle, 0, "memset", &memset);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSFreeToSystem", &OSFreeToSystem);

    OSDynLoad_FindExport(coreinit_handle, 0, "IM_Open", &IM_Open);
    OSDynLoad_FindExport(coreinit_handle, 0, "IM_Close", &IM_Close);
    OSDynLoad_FindExport(coreinit_handle, 0, "IM_SetDeviceState", &IM_SetDeviceState);

    int fd = IM_Open();
    void *mem = OSAllocFromSystem(0x100, 64);
    memset(mem, 0, 0x100);

    IM_SetDeviceState(fd, mem, 3, 0, 0);
    IM_Close(fd);
    OSFreeToSystem(mem);

    unsigned int t1 = 0x1FFFFFFF;
    while(t1--) ;

    OSScreenInit();

    int buf0_size = OSScreenGetBufferSizeEx(0);
    int buf1_size = OSScreenGetBufferSizeEx(1);

    OSScreenSetBufferEx(0, (void *)0xF4000000);
    OSScreenSetBufferEx(1, (void *)0xF4000000 + buf0_size);

    int ii = 0;
    for (ii; ii < 2; ii++)
    {
        fillScreen(0,0,0,0);
        flipBuffers();
    }
    _getIN();

}
void _getIN()
{

    uint32_t coreinit_handle;
    OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

    unsigned int vpad_handle;
    OSDynLoad_Acquire("vpad.rpl", &vpad_handle);

    int(*VPADRead)(int controller, VPADData *buffer, unsigned int num, int *error);

    void(*_Exit)();

    OSDynLoad_FindExport(vpad_handle, 0, "VPADRead", &VPADRead);

    OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);

    VPADData vpad_data;

    int error;

    VPADRead(0, &vpad_data, 1, &error);

    struct rendertext text;
    text.a=0;
    text.b=0;
    text.x=0;
    text.y=0;

    struct title titre;
    titre.mysteriu=0;
    titre.press_a=0;
    while(1)
    {
        VPADRead(0, &vpad_data, 1, &error);




//game start//

int choice = 0;


do
{choice = 0;

        int Number = 0 ;

        int compteur = 0;

        int nombreentre = 0;

        int nombremystere = 8;

        const int min = 1 ;

        const int max = 10;

        int ask = 0;
        char mysteriu[10];
    do
    {

        __os_snprintf(titre.title,1000,"MysteriU\n");
        __os_snprintf(titre.title,1000,"Press A to play.\n");
        if (vpad_data.btn_trigger && BUTTON_A);
        {
            text.a=1;
        }
    }
    while (text.a!=1);

            if (vpad_data.btn_trigger && BUTTON_A);
            {
                do
    {
        char between[120];
        char POM[120];//+ or -//
        char confirm[100];
        char number[10];

        int i =0;

        __os_snprintf(between,120,"what is the mysterius number?\n");

        _printstr("what is the mysterious Number?\n The number is between 0 and 10.\n\n use + or - button to answer and validate by pressing A.\n\n\n");
        __os_snprintf(between,120,"The number is between %d and %d .\n",min,max);

        __os_snprintf(POM,120,"Press the + and - button to answer.\n\n");

        __os_snprintf(confirm,120,"A to confirm\n");

do
{


        if (vpad_data.btn_trigger && BUTTON_PLUS)
            {
                Number++;

                    __os_snprintf(number,10,"%d",Number);



            }


        if (vpad_data.btn_trigger & BUTTON_MINUS)
            {
                Number--;
                    __os_snprintf(number,10,"%d",Number);

            }
}

            while (vpad_data.btn_trigger!= BUTTON_A);

        if (vpad_data.btn_trigger && BUTTON_A)
        {
           ask++;
        }





    }
   while (ask != 1);

        nombreentre=Number;

    if(nombreentre < nombremystere)
{
    char more[50];
    __os_snprintf(more,50,"it's more than %d \n",Number);

}



    if(nombreentre > nombremystere)
    { char less[50];
    __os_snprintf(less,50,"it's less than %d \n",Number);

    }




    if (nombreentre==nombremystere)
    {
        char win[100];
        char continuer[100];
        __os_snprintf(win,100,"congrats you win ! do you want to play again ?\n");

        __os_snprintf(continuer,100,"Would you like to play again?\n");

        if (vpad_data.btn_trigger && BUTTON_Y)
        {
            choice++;
        }


            if (vpad_data.btn_trigger && BUTTON_X)
            {
                _printstr("thanks for playing");
                _doExit();
            }
    }
}


        if (vpad_data.btn_trigger && BUTTON_HOME)
        {
            _doExit();
        }


}
while (choice=!1);

_doExit();
}
}

void _printstr(char *str)
{
    int ii = 0;
    for (ii; ii < 2; ii++)
    {
        fillScreen(0,0,0);
        drawString(0,0,0,0,str);
        flipBuffers();
    }
}

void _doExit()
{
    void(*_Exit)();
    uint32_t coreinit_handle;
    OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);
    _Exit();
}

Blackspoon · Mar 30, 2016

Let me help you out.
First you should have a look at this:
www.learn-c.org

It should help you to understand the basics of C.

__os_snprintf doesnt print anything on the screen. It just format the char buffer like this:

Code:

char buffer[255];
__os_snprintf(buffer,  255, "Simple String.");

The string "Simple String" was put into the buffer variable.
Now you can take the buffer and put it as a parameter in your _printstr function:

Code:

char buffer[255];
__os_snprintf(buffer,  255, "Simple String.");

_printstr(buffer);

If you want to put an integer in a string you can use a placeholder and add an agrument:

Code:

int integer = 53421;
char buffer[255];
__os_snprintf(buffer,  255, "The integer has the value: %i", integer);

_printstr(buffer);

__os_snprintf is documented here: http://wiiubrew.org/wiki/Coreinit.rpl#Internal

__os_snprintf is a wiiu equivalent to the function snprintf at other operating systems and its handling is the same.
Look at this page http://www.cplusplus.com/reference/cstdio/snprintf/ for more formating options.

I hope it would help you a littlebit.

Blackspoon

ryuutseku85 · Mar 31, 2016

Thanks a lot , i do C since january so i am still learning

so i have to say it's comming (some tweak need to be done with the IF statement)

ryuutseku85 · Apr 5, 2016

hi ,

so here we go again ...

first off :
in the browser we have a rpl call randgen.rpl and it get NSSGetRandom function that need two arg (obviously min and max in my case).

so this being said , let's go to the problem (again an other ?)
so i have my code , nothing seem wrong to me , but i don't know why but my wiiu freeze at my screen start .

here is my c code :

Code:

#include "loader.h"
#include "control.h"

void _start ()
{


    asm(
        "lis %r1, 0x1ab5 ;"
        "ori %r1, %r1, 0xd138 ;"
        );

    uint32_t coreinit_handle;
    OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);


    void(*OSScreenInit)();
    unsigned int(*OSScreenGetBufferSizeEx)(unsigned int bufferNum);
    unsigned int(*OSScreenSetBufferEx)(unsigned int bufferNum, void * addr);

    void*(*memset)(void * dest, uint32_t value, uint32_t bytes);
    void(*OSFreeToSystem)(void *ptr);
    void* (*OSAllocFromSystem)(uint32_t size, int align);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);

    int(*IM_Open)();
    int(*IM_Close)(int fd);
    int(*IM_SetDeviceState)(int fd, void *mem, int state, int a, int b);
    /****************************>             Exports             <****************************/

    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenInit", &OSScreenInit);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenGetBufferSizeEx", &OSScreenGetBufferSizeEx);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSScreenSetBufferEx", &OSScreenSetBufferEx);

    OSDynLoad_FindExport(coreinit_handle, 0, "memset", &memset);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);
    OSDynLoad_FindExport(coreinit_handle, 0, "OSFreeToSystem", &OSFreeToSystem);

    OSDynLoad_FindExport(coreinit_handle, 0, "IM_Open", &IM_Open);
    OSDynLoad_FindExport(coreinit_handle, 0, "IM_Close", &IM_Close);
    OSDynLoad_FindExport(coreinit_handle, 0, "IM_SetDeviceState", &IM_SetDeviceState);

    int fd = IM_Open();
    void *mem = OSAllocFromSystem(0x100, 64);
    memset(mem, 0, 0x100);

    IM_SetDeviceState(fd, mem, 3, 0, 0);
    IM_Close(fd);
    OSFreeToSystem(mem);

    unsigned int t1 = 0x1FFFFFFF;
    while(t1--) ;

    OSScreenInit();

    int buf0_size = OSScreenGetBufferSizeEx(0);
    int buf1_size = OSScreenGetBufferSizeEx(1);

    OSScreenSetBufferEx(0, (void *)0xF4000000);
    OSScreenSetBufferEx(1, (void *)0xF4000000 + buf0_size);

    int ii = 0;
    for (ii; ii < 2; ii++)
    {
        fillScreen(0,0,0,0);
        flipBuffers();
    }
    _getIN();

}

void _getIN()
{

    uint32_t coreinit_handle;
    OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);

    unsigned int vpad_handle;
    OSDynLoad_Acquire("vpad.rpl", &vpad_handle);


    int(*VPADRead)(int controller, VPADData *buffer, unsigned int num, int *error);


    void(*_Exit)();

    OSDynLoad_FindExport(vpad_handle, 0, "VPADRead", &VPADRead);

    OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);


    fillScreen(0,0,0,0);

    VPADData vpad_data;

    int error;
    int menu=0;
    int Game=0;
    int choicenumber=0;
    int number=0;
    int Mline=0;
    int Nline=0;
    int ask = 0;
    int compteur = 0;
    int nombreentre = 0;
    int nombremystere;
    int min;
    int max;
    int unite=0;
    int dizaine=0;
    int centaine=0;
    int mille=0;
    int dix_mille=0;
    int arrow =0;
    int ScreenSync=0;
    int WaitTime = 0;


    VPADRead(0, &vpad_data, 1, &error);

    while(1)
    {
        VPADRead(0, &vpad_data, 1, &error);

//Start Screen//
        if (menu==0 && Game == 0)
        {
            WaitTime=250;
            //print our start screen//

            while (WaitTime-- > 0)
            {
                fillScreen(0,0,0,0);
                DisplayMenu(Mline);
                flipBuffers();
            }
            menu++;
            Game++;
        }
        else
            {
            menu++;
            Game++;
            }

if(Game==1 && menu == 1)
{
            min=1;
            max=10;

        nombremystere=rand(min,max);
        fillScreen(0,0,0,0);
        DisplayGame(Nline ,min, max ,nombremystere ,nombreentre,unite,dizaine,centaine,mille,dix_mille,choicenumber);
        flipBuffers();
}
else
{
    _Exit();
}

if (vpad_data.btn_trigger & BUTTON_A)
{
     if(Game==1 && menu==1)
    {
        {
            fillScreen(0,0,0,0);
            DisplayResultat(nombreentre,nombremystere,menu,Game,compteur);
            flipBuffers();
        }
    }
}



if (vpad_data.btn_trigger & BUTTON_HOME)
        {
            _Exit();
        }

if(vpad_data.btn_trigger & BUTTON_LEFT)
{
    if (Game==1 && menu==1)
        {
                if (Nline<6)
                {
                    Nline++;
                }
                else
                {
                    Nline=0;
                }
        }

}

if(vpad_data.btn_trigger & BUTTON_RIGHT)
{
    if(Game==1 && menu==1)
        {
                if (Nline>0)
                {
                    Nline--;
                }
                else
                {
                    Nline=6;
                }
            }
}

if(vpad_data.btn_trigger & BUTTON_DOWN)
{
    if(Game==1 && menu==1)
    {choicenumber--;
        if (unite<0 && choicenumber==0)
             {
                 unite = 9 ;
             }
             if (dizaine<0 && choicenumber == 1)
             {
                 dizaine = 90 ;
             }
             if (centaine<0 && choicenumber == 2)
             {
                 centaine = 900 ;
             }
             if (mille<0 && choicenumber == 3)
             {
                 mille = 9000 ;
             }
             if (dix_mille<0 && choicenumber == 4)
             {
                 dix_mille = 90000 ;
             }
            if(choicenumber==0)
                    {
                    unite--;
                    }
            if (choicenumber == 1)
                    {
                    dizaine - 10;
                    }
            if (choicenumber == 2)
                    {
                    centaine - 100;
                    }
            if(choicenumber == 3)
                    {
                    mille - 1000;
                    }
            if(choicenumber == 4)
                    {
                dix_mille - 10000;
                    }
    }
}
    if(vpad_data.btn_trigger & BUTTON_UP)
         {
         if(Game==1 && menu==1)
         {choicenumber++;
                 if (unite>9 && choicenumber==0)
             {
                 unite = 0 ;
             }
             if (dizaine>90 && choicenumber == 1)
             {
                 dizaine = 0 ;
             }
             if (centaine>900 && choicenumber == 2)
             {
                 centaine = 0 ;
             }
             if (mille>9000 && choicenumber == 3)
             {
                 mille = 0 ;
             }
             if (dix_mille>90000 && choicenumber == 4)
             {
                 dix_mille = 0 ;
             }
            if(choicenumber==0)
                    {
                    unite + 1;
                    }
            if (choicenumber == 1)
                    {
                    dizaine + 10;
                    }
            if (choicenumber == 2)
                    {
                    centaine + 100;
                    }
            if(choicenumber == 3)
                    {
                    mille + 1000;
                    }
            if(choicenumber == 4)
                    {
                    dix_mille + 10000;
                    }
         }

}


if(vpad_data.btn_trigger & BUTTON_X)
{
    if(Game==2 && menu==2)
         {
            _Exit();
        }
}

if(vpad_data.btn_trigger & BUTTON_B)
{
    if(Game==1 && menu==1)
    {
        menu=1;
        Game=1;
    }
    _Exit();
}

    //if button Y is push//
    if(vpad_data.btn_trigger & BUTTON_Y)

        {
            _getIN();
        }

    }
_clearscreen();
}
void DisplayMenu(int Mline)
{
    char Name[255];
    char Thanks1[255];
    char Thanks2[255];
    char homebrew[255];
    char Wait[255];

    __os_snprintf(Name,255,    "                      MysteriU   **V0.1**");
    __os_snprintf(homebrew,255,"                Homebrew made by RYUUTSEKU85");
    __os_snprintf(Wait,255, "                       Loading, please wait");
    __os_snprintf(Thanks1,255, "Special thanks to : ");
    __os_snprintf(Thanks2,255, "MELLMA,PWSINCD,BLACKSPOON,DATALOGER,CYAN,BRIENJ");
    drawString(0,0,Name);
    drawString(0,1,homebrew);
    drawString(0,5,Wait);
    drawString(1,14,Thanks1);
    drawString(1,15,Thanks2);

}

void DisplayGame(int Nline ,int mini, int maxi, int nombremystere , int nombreentree , int unite , int dizaine , int centaine , int mille , int dix_mille , int choicenumber)
{

    char printfarrow0[10];
    char printfarrow1[10];
    char printfarrow2[10];
    char printfarrow3[10];
    char printfarrow4[10];
    char printfunite[1];
    char printfdizaine[1];
    char printfcentaine[1];
    char printfmille[1];
    char printfdix_mille[1];
    char buffer[10000];
    char Remenber[30];
    char POM[30];
    char LOR[30];
    char test[100];


        __os_snprintf(test,100,"verification nombre mystere : %d",nombremystere);
        __os_snprintf(POM,30,"Press up or down to modify a number");
        __os_snprintf(LOR,30,"Press left or right to move the cursor");
        __os_snprintf(printfunite,    1,"    %d",unite);
        __os_snprintf(printfdizaine,  1,"   %d",dizaine);
        __os_snprintf(printfcentaine, 1,"  %d",centaine);
        __os_snprintf(printfmille,    1," %d",mille);
        __os_snprintf(printfdix_mille,1,"%d",dix_mille);
        __os_snprintf(buffer,10000,"you selected the number %d, Press + to validate.",nombreentree);
        __os_snprintf(Remenber,30,"don't forget: the mysterious number is between %d and %d ",mini,maxi);

        drawString(0,4,test);
        drawString(0,5,POM);
        drawString(0,7,LOR);
        drawString(0,Nline,printfunite);
        drawString(0,Nline,printfdizaine);
        drawString(0,Nline,printfcentaine);
        drawString(0,Nline,printfmille);
        drawString(0,Nline,printfdix_mille);

        drawString(0,10,buffer);
        drawString(0,20,Remenber);

        nombreentree=dix_mille+mille+centaine+dizaine+unite;

        if(choicenumber==0)//unite//
        {
            __os_snprintf(printfarrow0,   30,"    ^");
            drawString(0,6,printfarrow0);

        }
        if (choicenumber == 1)//dizaine//
        {
            __os_snprintf(printfarrow1,   30,"   ^");
            drawString(0,6,printfarrow1);

        }
        if(choicenumber == 2)//centaine//
        {
            __os_snprintf(printfarrow2,   30,"  ^");
            drawString(0,6,printfarrow2);

        }

        if(choicenumber == 3)//mille//
        {
            __os_snprintf(printfarrow3,   30," ^");
            drawString(0,6,printfarrow3);

        }
        if (choicenumber== 4)//dix_mille//
        {
            __os_snprintf(printfarrow4,   30,"^");
            drawString(0,6,printfarrow4);
        }



}


void DisplayWinner(int nombreentre , int nombremystere , int Game , int compteur, int menu)
{
    if(nombreentre==nombremystere)
    {
        char winner[100];


        __os_snprintf(winner,100,"congrats you win ! in %d tries \n Do you want to play again?\n Y for YES and X for NO",compteur );
        drawString(0,10,winner);
    }

}


void DisplayResultat(int nombreentre ,int nombremystere, int Menu , int Game , int compteur)
{
    if (nombreentre<nombremystere)
          drawString(0,10,"it's more.   press B to answer again");
    if (nombreentre>nombremystere)
         drawString(0,10,"it's less.   press B to answer again");
    if (nombreentre==nombremystere)
    {
        DisplayWinner(nombreentre,nombremystere,Game,compteur,Menu);
    }


}

void _printstr(char *str)
{
    int ii = 0;
    for (ii; ii < 2; ii++)
    {
        fillScreen(0,0,0,0);
        drawString(0,0,str);
        flipBuffers();
    }
}

void _doExit()
{
    void(*_Exit)();
    uint32_t coreinit_handle;
    OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);
    _Exit();
}

unsigned int rand (int min,int max)
{
    unsigned int randgen_handle;
    unsigned int (*NSSGetRandom)(int min, int max);//create pointeur to nssgetrandom//

    OSDynLoad_Acquire("randgen.rpl", &randgen_handle);//get a handle on randgen.rpl//
    OSDynLoad_FindExport(randgen_handle, 0, "NSSGetRandom", &NSSGetRandom);// get nssgetrandom from wiiu browser//

    return NSSGetRandom(min,max);
}

so ? , what i don't do correctly ? maybe @brienj can help me with it cause i take exemple on his liteNESU menu.

Blackspoon · Apr 5, 2016

The randgen.rpl isnt a real lib provided by the os. I think this cause the freeze.

And the default implemented rand function, provided by cstdlib, will freeze the wiiu if you executing it from the userspace. I dunno if it works correctly with kexploit and a clean startup environment.

@Kakkoii has post a nice libary to get random numbers.
https://gbatemp.net/threads/wiiu-homebrew-development.391050/page-11#post-6160401

Alternative you can write a pseudo random function.

ajd4096 · Apr 5, 2016

Blackspoon said:
Alternative you can write a psoude random function.

http://dilbert.com/strip/2001-10-25
https://xkcd.com/221/

(Is it sad that I know these without looking them up?)

For non-security uses, you can use one of these:
https://en.wikipedia.org/wiki/Linear_congruential_generator

Edit: Yeah, now I've read the link, use MT library kakkoii linked to.

MrRean · Apr 5, 2016

You can just call _Exit() as-is, because it's address is hardcoded into the coreinit.h file in libwiiu/src, so you don't have to void it to declare it.

Same with OSFatal(). Also, why print()? You could try some of the OSScreen functions, or just use OSFatal()

not bad for a first program though :}

vgmoose · Apr 5, 2016

A bit of self promotion, but I have a lot of examples you might want to see in Space Game.

For pseudo-random numbers, I use this function, which you can invoke by passing the pointer to an integer (a seed) like this. To initialize the seed, you can base it off the time.

Another great resource is Eliboa's Snake. Cool stuff so far

ryuutseku85 · Apr 5, 2016

Thanks Mr rean , but come tell me it again when I will release it lol .
Vgmoose , each time I ask me something I take a look at two homebrew that ( I think ) are the most teachfull , they are lite NESU and ... Space game lol .

For snake , I find it hard to understand with the use a structure and the name that don't evoke something like for example the s* for snack .

Yours explain me how the vpad_data function work and how to use it .

For the random generator I think I may have find a different way that I will explore .

Thanks a lot for your support , until brienj or anyone else explain me the menu I will do it the old way lol .

When I will finish this , I think I gonna make a big tuto for the noob's one , so I can help them the wway some of you help me

brienj · Apr 5, 2016

ryuutseku85 said:
Thanks Mr rean , but come tell me it again when I will release it lol .
Vgmoose , each time I ask me something I take a look at two homebrew that ( I think ) are the most teachfull , they are lite NESU and ... Space game lol .

For snake , I find it hard to understand with the use a structure and the name that don't evoke something like for example the s* for snack .

Yours explain me how the vpad_data function work and how to use it .

For the random generator I think I may have find a different way that I will explore .

Thanks a lot for your support , until brienj or anyone else explain me the menu I will do it the old way lol .

When I will finish this , I think I gonna make a big tuto for the noob's one , so I can help them the wway some of you help me

The menu I used, uses arrows for the selection part. By changing the menuLine value, it makes the arrows get drawn on a different line. You need to make sure that you are including a header that defines the DrawString function you are using. Without seeing all of your source code, it is hard to determine exactly where any problem may lie.

Like I told you on the other forums, you could use the TinyMT library, it is what I started using in AstUroids not long after starting that project. It works perfectly on the Wii U, or if you want one simple function, use the random number generator that vgmoose uses in his Space Game.

Cyan · Apr 5, 2016

Special thanks : Cyan ?
I didn't help you, did I ? probably in another thread
Good luck learning, trying is the best way to progress.

pwsincd · Apr 5, 2016

Cyan said:
Special thanks : Cyan ?
I didn't help you, did I ? probably in another thread
Good luck learning, trying is the best way to progress.

you know i thought the same about myself , but i guess he feels i/we helped somehow...

ryuutseku85 · Apr 5, 2016

Indeed, you both help me .
Cyan by saying don't get discouraged by the mean people (via pm)
Pswincd to give a peaceful place to learn , and encouragement.

Thanks brienj for the answer

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