I really appreciate everyones help but I am still stuck : / The worst part is I've done this before but for some reason I can not get it to work. Am I missing something somewhere?
I've stripped my SDL project of everything and just kept the absolute bare essentials to get a window and a background. (To keep things simple and to keep code to a minimum for posting.) Below are my files, there are three of them. main.cpp, Engine.h, Surfaces.h:
main.cpp
#include <stdio.h>#include <stdlib.h>#include <string.h>#include <math.h>#include <string>#include "SDL.h"#include "SDL_image/SDL_image.h"#include "Engine.h"SDL_Event event;int main(int argc, char *argv[]){ int done = 0; Engine myGraphics; Engine *graphics; graphics = &myGraphics; background = graphics->load_image("//Users//Admin1//Documents//TestGame//Images//background.png"); graphics->apply_surface(0,0, background, screen); while ( !done ) { /* Check for events */ while ( SDL_PollEvent(&event) ) { switch (event.type) { case SDL_MOUSEMOTION: break; case SDL_MOUSEBUTTONDOWN: break; case SDL_KEYDOWN: /* Any keypress quits the app... */ case SDL_QUIT: done = 1; break; default: break; } } SDL_Flip(screen); } /* Clean up the SDL library */ SDL_Quit(); return(0);}
Here is Engine.h
/* * Engine.h * TestGame * * Created by Admin1 on 5/25/09. * Copyright 2009 __MyCompanyName__. All rights reserved. * */#include "Surfaces.h"class Engine { public: Engine(); //Loads images of any format SDL_Surface *load_image(std::string filename); //Apply the image to a surface void apply_surface(int x, int y, SDL_Surface *source, SDL_Surface *destination, SDL_Rect *clip); private: int SCREEN_WIDTH; int SCREEN_HEIGHT; int SCREEN_BPP; int initializeScreen(); };Engine::Engine(){ SCREEN_WIDTH = 640; SCREEN_HEIGHT = 480; SCREEN_BPP = 32; initializeScreen();}int Engine::initializeScreen(){ //Initialize SDL Subsystems if(SDL_Init(SDL_INIT_EVERYTHING) == -1) return 1; //Set the icon for the screen SDL_WM_SetIcon(NULL, NULL); //Set up the screen screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_SWSURFACE); if(screen == NULL) return 1; //Set the window caption SDL_WM_SetCaption("Testing", NULL); return 0;}SDL_Surface* Engine::load_image(std::string filename){ //The image that is loaded SDL_Surface *loadedImage = NULL; //The optimized image that will be used SDL_Surface *optimizedImage = NULL; //Load the image using SDL_image loadedImage = IMG_Load(filename.c_str()); //If the image loaded if(loadedImage != NULL) { //Create optimized image optimizedImage = SDL_DisplayFormat(loadedImage); //Free the old image SDL_FreeSurface(loadedImage); if(optimizedImage != NULL) { //Map the color key Uint32 colorkey = SDL_MapRGB(optimizedImage->format, 255,0,255); //bright pink //Set all pixels of 255,0,255 to transparent SDL_SetColorKey(optimizedImage, SDL_SRCCOLORKEY, colorkey); } } //Return the optimized Image return optimizedImage;}void Engine::apply_surface(int x, int y, SDL_Surface *source, SDL_Surface *destination, SDL_Rect *clip = NULL){ //Holds offsets SDL_Rect offset; //Get offsets offset.x = x; offset.y = y; //Blit SDL_BlitSurface(source, clip, destination, &offset);}
Here is Surfaces.h
//SurfacesSDL_Surface *screen = NULL;SDL_Surface *background = NULL;
All I really am after is to split the Engine header file into a header and a source file and I forget how : / Any help would be greatly appreciated.
[Edited by - Chrono1081 on May 25, 2009 11:11:55 AM]
