C/C++ Programming Help Thread

[Mr305]

in order to do animation, you will need to use a model file, such as md2, md3, etc. the only way you can alter existing models is by purely using the GU. and that means you can rotate it, and scale it, and move it around. basically, if you use the GU, your polygon list stays the same.

Just saw a few sdk samples about skinning all that...
But how do we render them onto screen [ex: a low polygon model]?
[No worries, space escape will still be in it's top most place :) ]
--------------
I donot see anything helpful by learning how to draw cubes, boxes on screen...
Anyone post any useful examples....

Are there any tutorials besides PSP-programming's Nehe OpenGL Ports?

[yaustar]

--------------
I donot see anything helpful by learning how to draw cubes, boxes on screen...
Anyone post any useful examples....

Are there any tutorials besides PSP-programming's Nehe OpenGL Ports?

Wrong mentality. By learning how to draw textured cubes and polygons to the screen, you learn how to use the graphics pipeline. All models are are polygons that are translated, rotated, scaled and drawn to the backbuffer.

This is the kind of crap that I was talking about in this post:
Goodbye Homebrew - How the psp scene is dying and what could save it!

My advice to you several pages back was clearly ignored.

Learn OpenGL. Its the closest API to the GU I know of. The fact that are ****loads of tutorials and reference material on the Internet ALONE is reason enough. Once you have got the hang of OpenGL, learning the GU will be a **** load easier.

[SuperBatXS]

check the hense sdk if you are using custom firmware

I tried the sample. It didn't work. It froze when it said Loading Exec wait. Btw, i am using 3.10 OE-A. Does anyone know how to load a umd with 3.10 oe-a? I couldn't get the 4th brightness code i found at psp-programming either.
Also, does anyone know how to animate text? Like move it accross the screen or something?

[Mr305]

Wrong mentality. By learning how to draw textured cubes and polygons to the screen, you learn how to use the graphics pipeline. All models are are polygons that are translated, rotated, scaled and drawn to the backbuffer.

This is the kind of crap that I was talking about in this post:
Goodbye Homebrew - How the psp scene is dying and what could save it!

My advice to you several pages back was clearly ignored.

Learn OpenGL. Its the closest API to the GU I know of. The fact that are ****loads of tutorials and reference material on the Internet ALONE is reason enough. Once you have got the hang of OpenGL, learning the GU will be a **** load easier.

If aneone happens to know any open source 3d prog please post a link...
[simple ones not psp quake]

Indeed, i read, re-read and tri-read those tuts...

[hallo007]

I tried the sample. It didn't work. It froze when it said Loading Exec wait. Btw, i am using 3.10 OE-A. Does anyone know how to load a umd with 3.10 oe-a? I couldn't get the 4th brightness code i found at psp-programming either.
Also, does anyone know how to animate text? Like move it accross the screen or something?

never tried it but

while(x++)
{
           clearScreen(0xFFFFFF);
           if(x == 480) x =0;
          printTextScreen( x , 0 "HELLO WORLD" , 0x0000FF);
          flipScreen();
          sceKernelDelayThread(100000); 1/10second , dont know thats enough or to much
}

you need the graphics.c from the luplayer , but i normally you got that already somewher

[yaustar]

If aneone happens to know any open source 3d prog please post a link...
[simple ones not psp quake]

Indeed, i read, re-read and tri-read those tuts...

Stop reading them and start doing them.

[hallo007]

How do you change the name of your home folder???

"My name"
needs to become "myname"

[k0ud]

can someone help me with this menu:

{

SceCtrlData pad;

    if(tempMenuSelection == 1)

    {
printf("==> menu 1");
printf("         menu 2");
printf("         menu 3");
printf("         menu 4");
printf("         menu 5");
printf("         menu 6");


                      } 
   if(tempMenuSelection == 2)

    {
printf("         menu 1");
printf(" ==>menu 2");
printf("         menu 3");
printf("         menu 4");
printf("         menu 5");
printf("         menu 6");


                      } 

    else if(tempMenuSelection == 3)

    {
printf("         menu 1");
printf("         menu 2");
printf("==> menu 3");
printf("         menu 4");
printf("         menu 5");
printf("         menu 6");


                     }  

    else if(tempMenuSelection == 4)

        {
printf("         menu 1");
printf("         menu 2");
printf("         menu 3");
printf(" ==>menu 4");
printf("         menu 5");
printf("         menu 6");                

}
  else if(tempMenuSelection == 5)

        {
printf("         menu 1");
printf("         menu 2");
printf("         menu 3");
printf("         menu 4");
printf(" ==>menu 5");
printf("         menu 6");



}
  else if(tempMenuSelection == 6)

        {
printf("         menu 1");
printf("         menu 2");
printf("         menu 3");
printf("         menu 4");
printf("         menu 5");
printf(" ==>menu 6");


}

  

    while(1)

{
    sceCtrlReadBufferPositive(&pad, 1);
    if (pad.Buttons & PSP_CTRL_UP) {      // i
        tempMenuSelection--;             // 
        wait(7); //scrollspeed
}

    else if (pad.Buttons & PSP_CTRL_DOWN){ // otherwise if the down button is pressed,

        tempMenuSelection++;		     // increment the menu selection.
        wait(7); //scrollspeed
}



    if (tempMenuSelection > 6)      // if the menu selector is past the end of the menu,

        tempMenuSelection = 1;      // move it to the beginning,

    else if (tempMenuSelection < 1) // otherwise if it is before the beginning,

        tempMenuSelection = 6;      // move it to the end.

if(pad.Buttons & PSP_CTRL_CROSS){

if(tempMenuSelection==1)

{
pspDebugScreenClear();
printf("option 1\n");
wait(140);
menu();
}
}

if(pad.Buttons & PSP_CTRL_CROSS){
if(tempMenuSelection==2)
{
pspDebugScreenClear();
printf("option 2\n");
wait(140);
menu();
}
}

if(pad.Buttons & PSP_CTRL_CROSS){
if(tempMenuSelection==3){
pspDebugScreenClear();
printf("option 3\n");
wait(140);
menu();
}
}

if(pad.Buttons & PSP_CTRL_CROSS){
if(tempMenuSelection==4){
pspDebugScreenClear();
printf("option 4\n");
wait(140);
menu();
}
}

if(pad.Buttons & PSP_CTRL_CROSS){
if(tempMenuSelection==5){
pspDebugScreenClear();
printf("option 5\n");
wait(140);
menu();
}
}

if(pad.Buttons & PSP_CTRL_CROSS){
if(tempMenuSelection==6){
pspDebugScreenClear();
printf("option 6\n");
wait(140);
menu();
}
}
}
}

what's wrong with this menu :Cry:
and something else; how do i get size of font bigger and how do i change the font ??

this is menu in c?!? omg thats too long....

where did u learn that? i wanna learn C too!:)

how to access memory stick and flash with c?

something like file viewer?

[hallo007]

1) cprogramming.com
2) dont touch flash if you cant program

[Grimfate126]

this is menu in c?!? omg thats too long....

where did u learn that? i wanna learn C too!:)

how to access memory stick and flash with c?

something like file viewer?

that menu is a poor example of C. it can be made 1/3 of the size it is right now. why do you want to access flash? last thing we need is another flasher.

[SuperBatXS]

I tried the sample. It didn't work. It froze when it said Loading Exec wait. Btw, i am using 3.10 OE-A. Does anyone know how to load a umd with 3.10 oe-a? I couldn't get the 4th brightness code i found at psp-programming either.
Also, does anyone know how to animate text? Like move it accross the screen or something?

Anyone? I need help with using 4th brightness, loading umd, and/or loading eboots in custom firmware- 3.10 oe.

[hallo007]

for brightness , use search or check pspdev.org forums

for the rest check the sdk samples

[eldiablov]

on 3.10 OE you already have 4th brightness so i find that pointless.

[Moca]

That menu is horrible if you are dealing with lots of items. I also made a menu like that, but when your menu has more than 4 items, that method it highly inefficient. Thanks to the help of someone, they pointed me in the right direction(no pun intended :| ).

Use pointers. :)

int yourmenu(void)
{
    char menutextarray[4] = {
                                       "Sel1","Sel2","Sel3",
                                       "Sel4","Sel5"
                                      };
    while(1)
    {
        if(pad.Buttons & PSP_CTRL_UP)
        {
             selection++;
        }
        for(i = 0; i < 5; i++)
        {    
             pspDebugScreenSetXY(0,0);
             printf("%s \n",menutextarray[i]);  
        }
    }    
         
}

Something like that. Then use FUNCTION POINTERS.

void (*menufunction[TOTALMENUITEMS])(void) = {selection1,selection2,selection3,selection4};

then you have the functions...

void selection1(void)
{
    printf("This is selection 1");
}

Im away from home right now, so I cant explain much until saturday. Ill make any corrections on Saturday too due to the fact I am doing this from memory -_-

(*menufunction[selection])();

That is how you would select the function that corresponds to the text printed to the screen.

Thanks to the one who showed me this method btw if you are reading this, which i doubt .
-= Double Post =-

on 3.10 OE you already have 4th brightness so i find that pointless.

:|

Not everyone is on 3.10OE. He didnt ask if that function was built in. He asked how to implement it into a program.

[hallo007]

i dont like your menu either

i work always with 3 loops
first loop
another loop for the menu printf (in char menuoptions =....) (with for loop)
another for the buttons and if option change , just break , it's easy and small;)

[Moca]

How do you change the name of your home folder???

"My name"
needs to become "myname"

Here's a new word i learned. Concatenate. :)
There is a C function that joins strings of text.
Take a look in string.h. strcat is the function.

-= Double Post =-

i dont like your menu either

i work always with 3 loops
first loop
another loop for the menu printf (in char menuoptions =....) (with for loop)
another for the buttons and if option change , just break , it's easy and small;)

Wow. Sounds horrible.
Mind posting a sample of it? Im guessing it looks something like what Kwastie posted which is simply, ugly. Theres only 6 selections, and look how much space it takes up.

[hallo007]

	pspDebugScreenClear();                                 // Clear the Screen
	                                                       //
	pspDebugScreenSetXY(0 , 0);                            //Set current pixel to 0,0
        
                            //
                                                           //
     currentSelection = 0;
     SceCtrlData pad;
     int selecting = TRUE;
     char *menuOption[5] = {  "Extract Eboot" ,
                               "Make eboot", 
                               "Launch eboot", 
                               "Exit"
                               };

     while(selecting)
     {
             pspDebugScreenClear();
             printf("MAIN MENU              made by hallo007       \n%s"  ,nickText);   
             for(loop=0; loop<4; loop++)
             {
                         
                         pspDebugScreenSetXY(16 , 15+loop);
                         if(loop != currentSelection) printf("   %s" , menuOption[loop]);
                         else  printf("=> %s" , menuOption[loop]);
                         }
             while(selecting)
             {
                     sceCtrlPeekBufferPositive(&pad, 1);
                     if(pad.Buttons & PSP_CTRL_UP)
                     {
                                     if(!buttonPressed)
                                     {
                                                       (currentSelection == 0) ? currentSelection = 3 : currentSelection--; 
                                                       buttonPressed = TRUE;
                                                       break;
                                                       }
                                      }
                     else if(pad.Buttons & PSP_CTRL_DOWN)
                      {
                                     if(!buttonPressed)
                                     {
                                                       (currentSelection == 3) ? currentSelection = 0 : currentSelection++; 
                                                       buttonPressed = TRUE;
                                                       break;
                                                       }
                                     }

-= Double Post =-

Here's a new word i learned. Concatenate. :)
There is a C function that joins strings of text.
Take a look in string.h. strcat is the function.

WTF???? is this a joke ??????

i ask for changing the name of the home folder in cygwin because main has white spaces and so i cant install some libs!!!!

[SuperBatXS]

My menu code is pretty repetitive (from psp-programming) and it seems kinda ineffecient. However, it is fast because i set up an array to quickly load and buffer my images (taught by SG). I also tried using for(;;) instead of while(1) but that flashes the memory stick a lot. It depends on the situation is what i am trying to say.

[hallo007]

i never understond menu examples when i started coding , but after a few weeks i made my own , (a bit like kwastie's one) without ny help , the first time is just brain storming;)

[LMelior]

i ask for changing the name of the home folder in cygwin because main has white spaces and so i cant install some libs!!!!

In Linux you can get around that by using the opposite slash character and then a space. It's how I access the folders of my Windows install, e.g.:

/mnt/vista/Program\ Files/...

I don't know if it's the same with cygwin, though.

[Moca]

hallo007, since this is the C/C++ help thread and not the cygwin help thread, I assumed your question was regarding C/C++ and folders :| . Also, you didnt mention cygwin in your question.

[hallo007]

forgotten , but I am not that nooby with i/o

[Kwastie]

could someone give me a proper example of menu, please? :Cry:

[Moca]

could someone give me a proper example of menu, please? :Cry:

I already explained. If you don't understand what i posted, then there is no reason in giving you a full example because you wont understand it anyway.

[seenit]

hey i need some help i find it hard to write text while working in 3d so i'm working on a way to write text while in 3d space so i had to re create the whole alaphabet in 3d and now i'm stuck

Spoiler for code:

void printing(char *text,int text_num,float z_distance,float x,float y){
     int i;
     float letter_spaceing = 1.16;
     char text_i[0];
     for(i=0;i<text_num;i++){
          text_i[0] = text[i];
          xtrans = x+(i*letter_spaceing);
          ytrans = y;
          ztrans = z_distance;
          sceGumLoadIdentity();
          {
          	ScePspFVector3 move = {xtrans,ytrans, ztrans};
          	sceGumTranslate( &move );
          	sceGumRotateY(180*(PI/180.0f));
          }
          sceGumUpdateMatrix();
          if(strcmp(text_i,"a")==0 || strcmp(text_i,"A")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,A);
          }
          if(strcmp(text_i,"b")==0 || strcmp(text_i,"B")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,30, 0,B);
          }
          if(strcmp(text_i,"c")==0 || strcmp(text_i,"C")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,30, 0,C);
          }
          if(strcmp(text_i,"d")==0 || strcmp(text_i,"D")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,30, 0,D);
          }
          if(strcmp(text_i,"e")==0 || strcmp(text_i,"E")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,24, 0,E);
          }
          if(strcmp(text_i,"f")==0 || strcmp(text_i,"F")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,F);
          }
          if(strcmp(text_i,"g")==0 || strcmp(text_i,"G")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,51, 0,G);
          }
          if(strcmp(text_i,"h")==0 || strcmp(text_i,"H")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,H);
          }
          if(strcmp(text_i,"i")==0 || strcmp(text_i,"I")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,I);
          }
          if(strcmp(text_i,"j")==0 || strcmp(text_i,"J")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,30, 0,J);
          }
          if(strcmp(text_i,"k")==0 || strcmp(text_i,"K")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,K);
          }
          if(strcmp(text_i,"l")==0 || strcmp(text_i,"L")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,12, 0,L);
          }
          if(strcmp(text_i,"m")==0 || strcmp(text_i,"M")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,24, 0,M);
          }
          if(strcmp(text_i,"n")==0 || strcmp(text_i,"N")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,N);
          }
          if(strcmp(text_i,"o")==0 || strcmp(text_i,"O")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,36, 0,O);
          }
          if(strcmp(text_i,"p")==0 || strcmp(text_i,"P")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,33, 0,P);
          }
          if(strcmp(text_i,"q")==0 || strcmp(text_i,"Q")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,42, 0,Q);
          }
          if(strcmp(text_i,"r")==0 || strcmp(text_i,"R")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,39, 0,R);
          }
          if(strcmp(text_i,"s")==0 || strcmp(text_i,"S")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,30, 0,S);
          }
          if(strcmp(text_i,"t")==0 || strcmp(text_i,"T")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,12, 0,T);
          }
          if(strcmp(text_i,"u")==0 || strcmp(text_i,"U")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,24, 0,U);
          }
          if(strcmp(text_i,"v")==0 || strcmp(text_i,"V")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,12, 0,V);
          }
          if(strcmp(text_i,"w")==0 || strcmp(text_i,"W")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,24, 0,W);
          }
          if(strcmp(text_i,"x")==0 || strcmp(text_i,"X")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,12, 0,X);
          }
          if(strcmp(text_i,"y")==0 || strcmp(text_i,"Y")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,Y);
          }
          if(strcmp(text_i,"z")==0 || strcmp(text_i,"Z")==0){
          	sceGumDrawArray(GU_TRIANGLES, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,18, 0,Z);
          }
     }
}

now i can't seem to get it work

i call it by:

printing("test",4,-10,0,0);
anyways after some testing i found:

it seperates the t and e fine but when it gets to s it outputs like:
sozl
and for the last t it's like:
tzl0

and i'm unsure also it doesn't seem to output the t and e which seems to work yet doesn't
-= Double Post =-
ok for now i'm trying to see if i can't get a letter to display but after some more testing i found that

strcmd(test_i,"e") set it to 0
but when i do an if(strcmd(test_i,"e")==0) { it doesn't read that if statement and bypasses or just skips it and i'm unsure y
-= Double Post =-
ok i fixed that prob but i have another i'm trying to add it so it can read numbers yet i'm unsure how to do this:

with sprintf you can do: sprintf(buffer,"jfjg %d",int);

but i'm unsure how to get the %f/%d/%c stuff to be read by my program so any help would be much appreciated

[SuperBatXS]

LOL, nvm. This is too easy....

[youresam]

Anyone? I need help with using 4th brightness, loading umd, and/or loading eboots in custom firmware- 3.10 oe.

I would also like help on this. I tried using it, and it just crashed. So then I manually added the function stubs for it (properly, mind you), and the functions didnt do anything. So yeah, help?

[seenit]

@TMNT if mine is that easy then can you plz give me an answer this is the help thread

[youresam]

@TMNT if mine is that easy then can you plz give me an answer this is the help thread

I can help. Use graphics.c's printTextToScreen, it uses direct screen access and draws each pixel, it is 2D though.

[seenit]

i know that but doesn't:

pspDebugScreenSetOffset(( int)fbp0);
pspDebugScreenSetXY(0,0);
pspDebugScreenPrintf(Disp lay);

do the same plus i'm liking my text style if i can't get it to do this one final thing