diff --git a/src/game.d b/src/game.d
index 5523617..348b3f8 100644
--- a/src/game.d
+++ b/src/game.d
@@ -5,12 +5,23 @@ import derelict.opengl.glu;
 
 enum int WIDTH = 800;
 enum int HEIGHT = 600;
+enum uint SDL_TICKS_PER_GAME_TICK = 1000u / 20u;
 
 class Player
 {
     public:
         int x;
         int y;
+        uint tick;
+};
+
+class Inputs
+{
+    public:
+        bool left;
+        bool right;
+        bool up;
+        bool down;
 };
 
 void init()
@@ -63,6 +74,8 @@ int main(char[][] args)
     p1.y = HEIGHT / 2;
     p2.x = WIDTH / 2 + 100;
     p2.y = HEIGHT / 2;
+    int pcontrol = 0;
+    Player players[] = [p1, p2];
 
     if (SDL_Init(SDL_INIT_EVERYTHING))
     {
@@ -80,20 +93,72 @@ int main(char[][] args)
         return 2;
     }
 
+    uint last_sdl_tick;
     init();
     SDL_Event event;
+    Inputs current_inputs = new Inputs();
+    bool exit = false;
     for (;;)
     {
+        if (SDL_GetTicks() >= (last_sdl_tick + SDL_TICKS_PER_GAME_TICK))
+        {
+            players[pcontrol].tick++;
+            last_sdl_tick += SDL_TICKS_PER_GAME_TICK;
+        }
         if (SDL_PollEvent(&event))
         {
-            if (event.type == SDL_QUIT)
-                break;
-            else if (event.type == SDL_KEYDOWN)
+            switch (event.type)
             {
-                if (event.key.keysym.sym == SDLK_ESCAPE)
+            case SDL_QUIT:
+                exit = true;
+                break;
+            case SDL_KEYDOWN:
+                switch (event.key.keysym.sym)
+                {
+                case SDLK_ESCAPE:
+                    exit = true;
                     break;
+                case SDLK_a:
+                    current_inputs.left = true;
+                    break;
+                case SDLK_d:
+                    current_inputs.right = true;
+                    break;
+                case SDLK_w:
+                    current_inputs.up = true;
+                    break;
+                case SDLK_s:
+                    current_inputs.down = true;
+                    break;
+                default:
+                    break;
+                }
+                break;
+            case SDL_KEYUP:
+                switch (event.key.keysym.sym)
+                {
+                case SDLK_a:
+                    current_inputs.left = false;
+                    break;
+                case SDLK_d:
+                    current_inputs.right = false;
+                    break;
+                case SDLK_w:
+                    current_inputs.up = false;
+                    break;
+                case SDLK_s:
+                    current_inputs.down = false;
+                    break;
+                default:
+                    break;
+                }
+                break;
+            default:
+                break;
             }
         }
+        if (exit)
+            break;
         display(p1, p2);
     }