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SDL 1.2 Proof of Concept code
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#include <SDL/SDL.h> | |
#include <SDL/SDL_image.h> | |
namespace core | |
{ | |
class Game | |
{ | |
private: | |
SDL_Surface* Surf_Display; | |
SDL_Surface* Surf_Image; | |
int x; | |
bool Running; | |
public: | |
void init() | |
{ | |
Running = true; | |
x = 0; | |
if(SDL_Init(SDL_INIT_EVERYTHING) < 0) { | |
//return false; | |
} | |
if((Surf_Display = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE | SDL_DOUBLEBUF)) == NULL) { | |
//return false; | |
} | |
SDL_Surface* Surf_Temp = NULL; | |
if((Surf_Temp = IMG_Load("loading-text.png")) == NULL) { | |
Running = false; | |
} | |
else | |
{ | |
Surf_Image = SDL_DisplayFormatAlpha(Surf_Temp); | |
SDL_FreeSurface(Surf_Temp); | |
} | |
//return true; | |
} | |
void handleInput(SDL_Event* event){ | |
switch(event->type) { | |
case SDL_QUIT: | |
Running = false; | |
break; | |
case SDL_KEYDOWN: | |
if ( SDLK_RIGHT == event->key.keysym.sym ) | |
{ | |
x+=10; | |
} | |
else if ( SDLK_LEFT == event->key.keysym.sym ) | |
{ | |
x-=10; | |
} | |
break; | |
} | |
} | |
void update(){} | |
void draw() | |
{ | |
if ( Surf_Image ) | |
{ | |
SDL_Rect DestR; | |
DestR.x = x; | |
DestR.y = 0; | |
//Clear the screen | |
SDL_Rect r={0,0,640,480}; | |
SDL_FillRect( Surf_Display, &r, -1 ); | |
//Paint the screen | |
SDL_BlitSurface(Surf_Image, NULL, Surf_Display, &DestR); | |
//Bring the backbuffer forward | |
SDL_Flip(Surf_Display); | |
} | |
} | |
void playSounds(){} | |
void clean(){ | |
SDL_FreeSurface(Surf_Display); | |
SDL_Quit(); | |
} | |
bool shouldExit(){ return !Running; } | |
}; | |
} |
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#include <SDL/SDL.h> | |
#include "./lib/core/Game.cpp" | |
core::Game game; | |
SDL_Event event; | |
void iterate() | |
{ | |
while(SDL_PollEvent(&event)) | |
{ | |
game.handleInput(&event); | |
} | |
game.update(); | |
game.draw(); | |
game.playSounds(); | |
} | |
int main() | |
{ | |
game.init(); | |
while( !game.shouldExit() ) | |
{ | |
iterate(); | |
SDL_Delay(20); | |
} | |
return 0; | |
} |
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all: | |
#Compile on the native platform | |
g++ main.cpp -o main -lSDL -lSDL_image |
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