MathOps - A simple example

[OmahaStylee]

Hey, for everyone who has finished doing Yeldarb's first two tutorials. I wrote a really simple program to help learn more functions, and to just practice. I think you guys would really appreciate it, and hopefully it can help you be on your way to creating your own program. There is a lot more information in the readme file, but if you still need help or anything, email me at OmahaStylee@gmail.com. Have fun!

http://www.sr-films.com/psp/MathOps_v0.1.zip

[MagicianFB]

thanks

[OmahaStylee]

Soadnation, I didn't have time to scan completely through your code, but one thing that really stood out is this.

 // My second PSP program - Hello World(advanced)

/*
This was made by Mitch Pordon.
It is a simple program that says
different thing with different key strokes.
*/
// Starting Code

#include <pspkernel.h>
#include <pspdebug.h>
#include <pspctrl.h>
#include <string.h>
PSP_MODULE_INFO("Communication",0,1,1);

#define printf pspDebugScreenPrintf

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
sceKernelExitGame();
return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
int cbid;

cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
sceKernelRegisterExitCallback(cbid);

sceKernelSleepThreadCB();

return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
int thid = 0;

thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
if(thid >= 0) {
sceKernelStartThread(thid, 0, 0);
}

return thid;
}

int main()
{
//Active Controlls
SceCtrlData pad;

sceCtrlSetSamplingCycle(0);
sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
while(1){
// Set it up to read the Controls
sceCtrlReadBufferPositive(&pad, 1);
//End
pspDebugScreenInit();
SetupCallbacks();

pspDebugScreenSetXY(0,0);
printf("Hit 'R' then 'L' then left");
/*Start if's*/

When using if() or while() functions, you need to use brackets to
show what is included in the function. Also, no semicollon.

if (pad.Buttons & PSP_CTRL_RTRIGGER) {
/*Start writing the screen(first time)*/
pspDebugScreenSetXY(0,7);
printf("Hello World!");
/* End writing to the screen(First time)*/
}

if (pad.Buttons & PSP_CTRL_LTRIGGER) {
/*start writing to the screen(second time)*/
pspDebugScreenSetXY(0,14);
printf("How's it going?");
/*End writing to screen(second time)*/
}
if (pad.Buttons & PSP_CTRL_DOWN) {
/*Start writing to screen(Last time)*/
pspDebugScreenSetXY(0,21);
printf("See you later!");
/*End writing to screen(last time)*/
}
sceKernelSleepThread();
return 0;

}

[MagicianFB]

How do you round numbers?

[soadnation]

thank you for helping me. i didnt read your source close enough., that wasnt the only problem though. it kept saying there was an error with the last line. i got fed up with it and for some strange reason i decided to put 1 more "}"
at the end. and it worked. im guesing i had an open one somehwere in the code. now i just gota put it on my psp

ok i piut it on my psp and nothing happens. the screen shows up and writing apears. but when i hit the button the writing that is suppos to shoiw doesnt.

[OmahaStylee]

Originally Posted by soadnation

thank you for helping me. i didnt read your source close enough., that wasnt the only problem though. it kept saying there was an error with the last line. i got fed up with it and for some strange reason i decided to put 1 more "}"
at the end. and it worked. im guesing i had an open one somehwere in the code. now i just gota put it on my psp

ok i piut it on my psp and nothing happens. the screen shows up and writing apears. but when i hit the button the writing that is suppos to shoiw doesnt.

Well, all I can say is keep error checking. Just change things, look for things that don't make sense. And if all else fails, start over. I started over twice when making MathOps.

[soadnation]

why did u have to start over? just wondering.

[OmahaStylee]

Sometimes I just get lost in all of the code and can't remember why I did certain things. So just starting fresh kinda clears it up. Plus once I have the idea of how the script is going to work, I can duplicate it easy.

[soadnation]

where did u lkearn the command thing(liie pad.buttons & PSP_CTRL_then the button u want) if u leaned it from a site what site?

[OmahaStylee]

I originally saw the code in Redbluefire's guessing game. Then, I looked in the file that holds the code for control functions and learned all the buttons names.

[soadnation]

ok im gona download that then try over