C/C++ Programming Help Thread

[basfreak]

Also, how would you put something on 0.1 pixel...

[yaustar]

Also, how would you put something on 0.1 pixel...

You can't. A pixel is a finite size, you can only use whole pixels.

[basfreak]

You can't. A pixel is a finite size, you can only use whole pixels.

Yes, that was my point.

[lilmnm]

Ok Im working on NitePR renamed DayPR for kicks and giggles,

but i have recently tried changing the picture on the top-left corner of the screen. I know know its writing to the vram using image blitting. and it does the image blitting part using the pixel data. Thats where im having trouble at. i know the Pixel data is in the picture's hex but when i tr locating it and then put it in the telazorn.h and i compile the prx and test it out it comes up as a box with the image looking like a tv with no antenna on it. i need help cause i don't know what im doing wrong. I don't know any thing about image blitting or how to get the pixel data in the way it needs to be.

Another thing im i need help with im adding a new tab for something that has to do with the site i am based from but i added the menu header for it but its not letting me switch to it so can someone tell me the structure of Crt0_prx.c so it will work correctly.

i searched all around google and a lot other sites and i got nothing.


(sorry if this is posted int the wrong section again)

[yaustar]

How many bits per pixel are you using to store the data in the header file? What tool are you using to convert the files from binary to source?

[basfreak]

Hmm, can anyone help me out with audio in OSLib?
I declare the sound: OSL_SOUND * jump;
init the audio: oslInitAudio();
load the sound: jump = oslLoadSoundFile("jump.mp 3", OSL_FMT_NONE);
and play the sound: oslPlaySound(jump, 0);
But when I press the jump button it crashes so that's at the play sound.
Can anyone help me?
Thanks:Punk:

[lilmnm]

How many bits per pixel are you using to store the data in the header file? What tool are you using to convert the files from binary to source?

i have it with 2 bits per pixel and i didnt really use anything to convert to source :o:o:o that is one of the things i needed help with is getting a tool to help with that cause i didnt know there was a tool for that

[slicer4ever]

Hmm, can anyone help me out with audio in OSLib?
I declare the sound: OSL_SOUND * jump;
init the audio: oslInitAudio();
load the sound: jump = oslLoadSoundFile("jump.mp 3", OSL_FMT_NONE);
and play the sound: oslPlaySound(jump, 0);
But when I press the jump button it crashes so that's at the play sound.
Can anyone help me?
Thanks:Punk:

try OSL_FMT_STREAM instead of OSL_FMT_NONE

[Anti-QuickJay]

Ok Im working on NitePR renamed DayPR for kicks and giggles,

but i have recently tried changing the picture on the top-left corner of the screen. I know know its writing to the vram using image blitting. and it does the image blitting part using the pixel data. Thats where im having trouble at. i know the Pixel data is in the picture's hex but when i tr locating it and then put it in the telazorn.h and i compile the prx and test it out it comes up as a box with the image looking like a tv with no antenna on it. i need help cause i don't know what im doing wrong. I don't know any thing about image blitting or how to get the pixel data in the way it needs to be.

Another thing im i need help with im adding a new tab for something that has to do with the site i am based from but i added the menu header for it but its not letting me switch to it so can someone tell me the structure of Crt0_prx.c so it will work correctly.

i searched all around google and a lot other sites and i got nothing.


(sorry if this is posted int the wrong section again)

SANiK I think used bin2c to convert his picture.
The new tab you made, assuming you did it right actually will not be selectable until you change something. By something I mean there is a part in the source file that limits it to 5 tabs(I think nitePR has 5 tabs or so). You have to increase the number 5 assuming it is 5 to 6.

I can tell you know little nothing of coding in C so don't try and make another knockoff of nitePR, especially since its coding is real messy.

[lilmnm]

SANiK I think used bin2c to convert his picture.
The new tab you made, assuming you did it right actually will not be selectable until you change something. By something I mean there is a part in the source file that limits it to 5 tabs(I think nitePR has 5 tabs or so). You have to increase the number 5 assuming it is 5 to 6.

I can tell you know little nothing of coding in C so don't try and make another knockoff of nitePR, especially since its coding is real messy.

i seen that on goolgoe today and just downloaded it. i changed the nitprthreas value from 5 to 6 but it still didnt let me select it. i'll just trasg the new tab and remove the logger. thanx though

and i know basicly the basic but C looks like php s i know the gist of whats going on so like i care about criticism thanx though +rep

[yaustar]

Hmm, can anyone help me out with audio in OSLib?
I declare the sound: OSL_SOUND * jump;
init the audio: oslInitAudio();
load the sound: jump = oslLoadSoundFile("jump.mp 3", OSL_FMT_NONE);
and play the sound: oslPlaySound(jump, 0);
But when I press the jump button it crashes so that's at the play sound.
Can anyone help me?
Thanks:Punk:

Did you check if jump is NULL before you used it? oslLoadSoundFile doesn't load MP3s.

[BenHur]

Hi everyone,

C programming question: How do you define a structure with a member, which points to another structure of the same type?

Maybe some sample code is easier to understand: How do I get the following to work? (myStruct is used before it's defined)

typedef struct {
	int number;
	myStruct* anotherMyStruct;
} myStruct;

Thanks, BenHur

PS: I could use void*, but there has to be a more elegant solution...

[kuroneko]

typedef struct myStruct {
	int number;
	struct myStruct* anotherMyStruct;
} myStruct;

This should do.

[daaa57150]

Did you check if jump is NULL before you used it? oslLoadSoundFile doesn't load MP3s.

no, slicer4ever is right, when playing an mp3 with oslib with attribute OSL_FMT_NONE, it crashes. but checking if jump is null should be done anyway.

[basfreak]

I use wavs now and the stream method but if the sounds are played often I hear a cracking sound?
Nvm, works with FMT_NONE now, thanks ;)

[xDeaglex]

How to print a variable? I tried this way, but it doesn't work.

printTextScreen(150, 150, mousex, white);

[BenHur]

typedef struct myStruct {
	int number;
	struct myStruct* anotherMyStruct;
} myStruct;

This should do.

It does! Thank you!

[_dysfunctional]

How to print a variable? I tried this way, but it doesn't work.

printTextScreen(150, 150, mousex, white);

Assuming printTextScreen() takes a C-style string and mousex is an integer, you could do:

char tempStrBuffer[12]; // mousex probably isn't that big
snprintf(tempStrBuffer, 12, "%i", mousex);
printTextScreen(150, 150, tempStrBuffer, white);

However, this is a bit of C y, so you could also consider:

std::stringstream ss;
ss << mousex;
std::string mousexStr = ss.str();
printTextScreen(150, 150, mousexStr.c_str(), white);

if you are willing to use some C++.

[xDeaglex]

Assuming printTextScreen() takes a C-style string and mousex is an integer, you could do:

char tempStrBuffer[12]; // mousex probably isn't that big
snprintf(tempStrBuffer, 12, "%i", mousex);
printTextScreen(150, 150, tempStrBuffer, white);

However, this is a bit of C y, so you could also consider:

std::stringstream ss;
ss << mousex;
std::string mousexStr = ss.str();
printTextScreen(150, 150, mousexStr.c_str(), white);

if you are willing to use some C++.

Thanks a lot.

[fiorello]

Hello
Has anybody idea, to do it so the tower (wieza struct) atacks the mobs (potfur struct) only once at time ??? I mean some time ago I did it but the tower was attacking all mobs that were on map, i want 1 tower = 1 mob attacked by it. Now one tower attacks one mob but only once (so it hits it by 5hp and tower doesnt do anything next)

Anybody help ?

here's the attacking loop:

for(i = 0; i <= DefNr; i++) //main loop, 0 to towers amount
		{
			if(wieza[i] != NULL && !wieza[i]->isAttack) // if tower exist
			{
				for(b = 0; b <= MobNr; b++)//loop from 0 to mob amount
				{	
					
					if(potfur[b] != NULL && potfur[b]->hp > 0 && !wieza[i]->isAttack) //if tower isnt attacking yet, the mob is not dead, and if it exist...
					{	
						oslDrawLine(wieza[i]->wiezaspr->x + wieza[i]->wiezaspr->sizeX/2,wieza[i]->wiezaspr->y + wieza[i]->wiezaspr->sizeY/2,
								potfur[b]->potforek->x + potfur[b]->potforek->sizeX/2,potfur[b]->potforek->y + potfur[b]->potforek->sizeY/2,
								RGBA(0,0,255,200)); // draws "beam"
								potfur[b]->hp -= 5; // hits it...
								wieza[i]->isAttack = true; // and make boolean isAttack true, so it shoudnt attack any other monster till this is death
								
								break;
							
								
					}
					else 
					{
						wieza[i]->isAttack = false; 
						
						
					}
					if(wieza[i]->isAttack) break;
				}

			}
		
		}

[yaustar]

Generally looks fine to me from a glance. Are you sure it attacks everything at once? Don't forget this code will generally run up to 60 frames per second so it is making up to 60 attacks per second.

[fiorello]

I want one tower to attack only one mob at time till it's dead, now it shoot only 1 beam to one mob. It stops me from developing this game

[yaustar]

I want one tower to attack only one mob at time till it's dead, now it shoot only 1 beam to one mob. It stops me from developing this game

I know what you want, what I am not sure is whether you are describing something that happens over one frame or something that is happening over several frames but in a very short amount of time.

As I said above:

"Don't forget this code will generally run up to 60 frames per second so it is making up to 60 attacks per second."

Which is 5 hp off a monster per frame. How much health does each monster have?

[fiorello]

I know what you want, what I am not sure is whether you are describing something that happens over one frame or something that is happening over several frames but in a very short amount of time.

As I said above:

"Don't forget this code will generally run up to 60 frames per second so it is making up to 60 attacks per second."

Which is 5 hp off a monster per frame. How much health does each monster have?

it will depends on level (1lvl = 750hp what means about 4sec to kill, and it's per frame.

[xDeaglex]

Hello, is there any function to change printing text size? Thank you.

[eldiablov]

I think debug is a specific size, are you using debug text?

[xDeaglex]

I think debug is a specific size, are you using debug text?

To print a text i'm using printTextScreen();

[eldiablov]

I would advise you to stop using graphics.c :/

[slasher101]

Use pspDebugScreenPrintf instead.
It's much more reliable.

--SLasher

[xDeaglex]

I don't know how in pspDebugScreenPrintf set x, y coordinates, color, size..
Where i can get more information about pspDebugScreenPrintf?