[bear(NP)]

Hey guys, I have a real doozy this time

Here's my source code, based on LazyFoo's tutorials (mad props, http://lazyfoo.net/S...rials/index.php ). It executes find, and all the .dlls and image files are in the right place:

//ZAVE; a zombie defense game.
//Created by: REMOVED

//the headers, needed to use SDL, other images with SDL and strings
#include "SDL.h"
#include "SDL_image.h"
#include <string>
	//header that stores all objects and constants
//#include "ZaveHeader.h"
#include <iostream>
using namespace std;

//the screen (play area) attributes&&&
const int SCREEN_WIDTH = 600;
const int SCREEN_HEIGHT = 600;
const int SCREEN_BPP = 32;

//the surfaces; used in displaying images on screen
SDL_Surface *zombie = NULL;
SDL_Surface *pickup = NULL;
SDL_Surface *player = NULL;
SDL_Surface *projectile = NULL;
SDL_Surface *screen = NULL;

//the event; used for key commmands & Xing out of prgm
SDL_Event event;

SDL_Surface *loadimage(std::string filename){
	cout<< "loading images";
	//the image that's loaded
	SDL_Surface* loadedImage = NULL;

	//the optimized surface that will be used
	SDL_Surface* optimizedImage = NULL;

	//load the image
	loadedImage = IMG_Load(filename.c_str());

	//if the image loaded
	if(loadedImage != NULL){

		//create optimized surface
		optimizedImage = SDL_DisplayFormat(loadedImage);

		//free the old surface for later use
		SDL_FreeSurface(loadedImage);

		//If the image was optimized
		//if the optimizedImage was created correctly
		if(optimizedImage != NULL){
			//map the color key
			Uint32 colorkey = SDL_MapRGB(optimizedImage->format, 0, 0xFF, 0xFF);

			//set all pixels of color R 0, G 0xFF, B 0xFF to the background's color
			SDL_SetColorKey(optimizedImage, SDL_SRCCOLORKEY, colorkey);
		}
	}
	//return the optimizedImage created
	return optimizedImage;
}

//applies the given image to the screen (surface)
//&&&NEEDS TO BE CHANGED TO ONLY PASS OBJECT'S RECT INSTEAD OF (X,Y)
void apply_surface(int x, int y, SDL_Surface* source, SDL_Surface* destination){
	//create rectangle for holding x and y coordinates
	SDL_Rect offset;

	//store the x and y coordinates
	offset.x = x;
	offset.y = y;
	
	//blit (draw image)
		//2nd parameter is null because no sprite clipping is used
	SDL_BlitSurface(source, NULL, destination, &offset);
}

//initializes everything, true if OK, false if error
bool init(){
	//initializes all SDL subsystems, also checks for errors
	if(SDL_Init(SDL_INIT_EVERYTHING) == -1){
		return false;
	}

	//sets up screen
	screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE);

	//return false if there was an error in creating the screen
	if(screen == NULL){
		return false;
	}

	//set the window caption
	SDL_WM_SetCaption("ZWAVE!", NULL);

	//return true if no problems
	cout<< "got here";
	return true;
}

//loads image files, returns false if problem, true if OK
bool load_files(){

    //load the .jpg files for use
    zombie = loadimage( "zombie.JPEG" );
	pickup = loadimage( "health.JPEG" );
	player = loadimage( "player.JPEG" );
	projectile = loadimage( "projectile.JPEG" );

    //return false if there was a problem loading the images
    if((zombie == NULL) || (pickup = NULL) || (player = NULL) || (projectile = NULL)){
        return false;
    }

    //return true if everything loaded OK
    return true;
}

//cleans up when the program ends
void clean_up(){
    //"free" the surface
    SDL_FreeSurface(zombie);
	SDL_FreeSurface(pickup);
	SDL_FreeSurface(player);
	SDL_FreeSurface(projectile);

    //quit out of SDL
    SDL_Quit();
}

int main( int argc, char* args[] ){
    //quit flag
    bool quit = false;

    //initialize everything, return 1 if error
    if(init() == false){
        return 1;
    }

    //load the files, return 1 if error
    if(load_files() == false){
        return 1;
    }

    //while user hasn't quit...
    while(quit == false){

        //if an even happens
        if(SDL_PollEvent(&event)){

            //if the user has Xed out the window
            if(event.type == SDL_QUIT){
                //end the program
                quit = true;
            }
        }

        //fill the screen green
        SDL_FillRect(screen, &screen->clip_rect, SDL_MapRGB(screen->format, 50, 205, 50));

		//apply the surfaces
		apply_surface( 0, 0, zombie, screen );
		apply_surface( 100, 0, pickup, screen );
		apply_surface( 200, 0, player, screen );
		apply_surface( 300, 0, projectile, screen );

        //update the screen, return 1 of error
        if(SDL_Flip(screen) == -1){
            return 1;
        }
    }

    //clean up after quitting
    clean_up();

    return 0;
}

After compiling, this is the output displayed by VS 2008

Quote

'Zave.exe': Loaded 'C:\Users\USER\Desktop\Zave\Zave\Debug\Zave.exe', Symbols loaded.
'Zave.exe': Loaded 'C:\Windows\SysWOW64\ntdll.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\kernel32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\KernelBase.dll'
'Zave.exe': Loaded 'C:\Users\USER\Desktop\Zave\Zave\Debug\SDL.dll', Binary was not built with debug information.
'Zave.exe': Loaded 'C:\Windows\SysWOW64\advapi32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\msvcrt.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\sechost.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\rpcrt4.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\sspicli.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\cryptbase.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\gdi32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\user32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\lpk.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\usp10.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\winmm.dll'
'Zave.exe': Loaded 'C:\Users\USER\Desktop\Zave\Zave\Debug\SDL_image.dll', Binary was not built with debug information.
'Zave.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc90.debugcrt_1fc8b3b9a1e18e3b_9.0.21022.8_none_96748342450f6aa2\msvcp90d.dll', Symbols loaded.
'Zave.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc90.debugcrt_1fc8b3b9a1e18e3b_9.0.21022.8_none_96748342450f6aa2\msvcr90d.dll', Symbols loaded.
'Zave.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4926_none_508ed732bcbc0e5a\msvcr90.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\imm32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\msctf.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\ddraw.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\dciman32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\setupapi.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\cfgmgr32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\oleaut32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\ole32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\devobj.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\dwmapi.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\ddraw.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\dwmapi.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\setupapi.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\devobj.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\oleaut32.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\ole32.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\cfgmgr32.dll'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\dciman32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\uxtheme.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\dwmapi.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\KBDUS.DLL'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\KBDUS.DLL'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\KBDUS.DLL'
'Zave.exe': Unloaded 'C:\Windows\SysWOW64\KBDUS.DLL'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\dsound.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\ole32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\powrprof.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\setupapi.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\cfgmgr32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\oleaut32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\devobj.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\dinput.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\hid.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\wintrust.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\crypt32.dll'
'Zave.exe': Loaded 'C:\Windows\SysWOW64\msasn1.dll'
The thread 'Win32 Thread' (0x18fc) has exited with code 1 (0x1).
The thread 'Win32 Thread' (0x196c) has exited with code 1 (0x1).
The program '[6236] Zave.exe: Native' has exited with code 1 (0x1).

any suggestions? thanks guys

[Aphex19]

Do you know exactly where the error is? Have you set any breakpoints?

[sarmanu]

if((zombie == NULL) || (pickup = NULL) || (player = NULL) || (projectile = NULL)){

There's something wrong with this line. Can you figure out the problem?

[bear(NP)]

yeah... I can that made me feel super smart...

I'm assigning those images to NULL instead of checking if they are NULL... thanks for that catch


EDIT:

actually that didn't stop the program from not running correctly, although it is a major problem. The window that should pop up still comes up for a brief moment and then disappears... I've put in a pause, but nothing seems to prevent it

This post has been edited by bear(NP): 19 March 2010 - 11:27 AM