diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/src/main.cpp b/src/main.cpp index ff36b69..d31b704 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -5,11 +5,18 @@ #include <cstdio> #include <chrono> +#define TICKS_PER_SEC 20 +#define MSEC_PER_TICK (1000/TICKS_PER_SEC) + SDL_Window *window = NULL; SDL_Surface *renderSurface = NULL; SDL_GLContext mainGLContext = NULL; bool gameRunning = true; +static unsigned int tickCount = 0, + prevTime = 0, + currentTime = 0, + deltaTime = 0; World *currentWorld=NULL; Player *player; @@ -76,9 +83,19 @@ int main(int argc, char *argv[]){ player=new Player(); player->spawn(0,100); + currentTime=millis(); + while(gameRunning){ + prevTime = currentTime; + currentTime = millis(); + deltaTime = currentTime - prevTime; + + if(prevTime + MSEC_PER_TICK >= millis()){ + logic(); + prevTime = millis(); + } + render(); - logic(); } /************************** @@ -111,7 +128,7 @@ void render(){ currentWorld->draw(&player->loc); player->draw(); - //ui::putString(0,0,"Hello"); + ui::putString(0,0,"Hello"); /************************** **** CLOSE THE LOOP **** @@ -124,7 +141,7 @@ void render(){ void logic(){ ui::handleEvents(); currentWorld->detect(&player->loc,&player->vel,player->width); - player->loc.y+=player->vel.y; - player->loc.x+=player->vel.x; + player->loc.y+=player->vel.y*deltaTime; + player->loc.x+=player->vel.x*deltaTime; std::cout<<"("<<player->loc.x<<","<<player->loc.y<<")"<<std::endl; } |