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#include "screen.h"
SDL_Window *gWindow = NULL;
SDL_Surface *gScreenSurface = NULL;
SDL_Surface *ballSurface = NULL;
SDL_Surface *leftPaddleSurface = NULL;
SDL_Surface *rightPaddleSurface = NULL;
static const char * const SPRITE_PATH = "sprite.bmp";
static SDL_Surface *LoadSurface ( const char * const path ) {
SDL_Surface *optimizedSurface = NULL;
SDL_Surface * loadedSurface = SDL_LoadBMP( path );
if ( loadedSurface == NULL ) {
printf( "Unable to load image %s! SDL Error: %s\n", path, SDL_GetError() );
return NULL;
}
optimizedSurface = SDL_ConvertSurface( loadedSurface, gScreenSurface->format, 0 );
if ( optimizedSurface == NULL ) {
printf( "Unable to optimize image %s! SDL Error: %s\n", path, SDL_GetError() );
return NULL;
}
SDL_FreeSurface( loadedSurface );
return optimizedSurface;
}
bool InitScreen ( void ) {
if ( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
printf( "SDL could not initialize! SDL Error: %s\n", SDL_GetError() );
return false;
}
gWindow = SDL_CreateWindow( "Pong", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN );
if ( gWindow == NULL ) {
printf( "Window could not be created! SDL Error: %s\n", SDL_GetError() );
return false;
}
gScreenSurface = SDL_GetWindowSurface( gWindow );
SDL_FillRect( gScreenSurface, NULL, SDL_MapRGB( gScreenSurface->format, 0x00, 0x00, 0x00 ) );
ballSurface = LoadSurface( SPRITE_PATH );
leftPaddleSurface = LoadSurface( SPRITE_PATH );
rightPaddleSurface = LoadSurface( SPRITE_PATH );
return true;
}
void Close ( void ) {
SDL_FreeSurface( rightPaddleSurface );
rightPaddleSurface = NULL;
SDL_FreeSurface( leftPaddleSurface );
leftPaddleSurface = NULL;
SDL_FreeSurface( ballSurface );
ballSurface = NULL;
SDL_FreeSurface( gScreenSurface );
gScreenSurface = NULL;
SDL_DestroyWindow( gWindow );
gWindow = NULL;
SDL_Quit();
}
void Draw ( const struct moveable_t m, SDL_Surface * const surface ) {
SDL_Rect drect = { m.position.x, m.position.y, m.width, m.height };
const int status = SDL_BlitScaled( surface, NULL, gScreenSurface, &drect );
if ( status < 0 ) {
printf( "Error with draw! SDL Error: %s\n", SDL_GetError() );
}
}
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