Hello,
I have been trying for the last few days to get SDLworking on my machine (OS X) so I can start working towards learning to create a 2D platformer, but I am having a harder time I believe it should be to get it working correctly...I got the templates working and it compiles fine, but when I try running it, nothing happens and this is what my compiler says it cannot load something. Has anyone had this issue before or maybe might know what I am missing? PLEASE, Any help would be greatly appreciated!!!
I attached a screenshot of what my compiler does when I run the template program.
// ============================================================================
// [Include Section]
// ============================================================================
#include "SDL2/SDL.h"
// ============================================================================
// [SdlApplication]
// ============================================================================
#define APPTITLE "SDL Template Program"
// SdlApplication is nothing more than thin wrapper to SDL library. You need
// just to instantiate it and call run() to enter the SDL event loop.
struct SdlApplication
{
SdlApplication();
~SdlApplication();
// Application state (just convenience instead of 0, 1, ...).
enum APP_STATE
{
APP_OK = 0,
APP_FAILED = 1
};
// Initialize application, called by run(), don't call manually.
int init(int width, int height);
// Destroy application, called by destructor, don't call manually.
void destroy();
// Run application, called by your code.
int run(int width, int height);
// Called to process SDL event.
void onEvent(SDL_Event* ev);
// Called to render content into buffer.
void Render();
// Whether the application is in event loop.
bool _running;
SDL_Window *win;
SDL_Renderer *renderer;
};
SdlApplication::SdlApplication() :
_running(false)
{
}
SdlApplication::~SdlApplication()
{
destroy();
}
int SdlApplication::init(int width, int height)
{
// Initialize the SDL library.
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) < 0)
{
fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
return APP_FAILED;
}
win = SDL_CreateWindow(APPTITLE, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_SHOWN);
renderer = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
// Success.
return APP_OK;
}
void SdlApplication::destroy()
{
if (win)
{
SDL_DestroyWindow(win);
SDL_DestroyRenderer(renderer);
SDL_Quit();
}
}
int SdlApplication::run(int width, int height)
{
// Initialize application.
int state = init(width, height);
if (state != APP_OK) return state;
// Enter to the SDL event loop.
SDL_Event ev;
_running = true;
while (SDL_WaitEvent(&ev))
{
onEvent(&ev);
Render();
if (_running == false)
{
break;
}
}
return APP_OK;
}
void SdlApplication::onEvent(SDL_Event* ev)
{
switch (ev->type)
{
case SDL_QUIT:
_running = false;
break;
case SDL_KEYDOWN:
{
if (ev->key.keysym.sym == SDLK_ESCAPE)
{
_running = false;
}
}
}
}
void SdlApplication::Render()
{
SDL_Rect r;
int w,h;
SDL_GetWindowSize(win, &w, &h);
r.w = 200;
r.h = 200;
r.x = w/2-(r.w/2);
r.y = h/2-(r.h/2);
//
SDL_SetRenderDrawColor(renderer, 0x00, 0x00, 0, 0xff);
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 0xff, 0xff, 0, 0xff);
SDL_RenderFillRect(renderer, &r);
SDL_RenderPresent(renderer);
}
// ============================================================================
// [Entry-Point]
// ============================================================================
int main(int argc, char* argv[])
{
SdlApplication app;
return app.run(640, 480);
}
