Changed player-movement. From UP, DOWN, LEFT, RIGHT to LEFT, RIGHT. Turn relative to your snake's head.

src/game/simulation/input.h

@@ -2,20 +2,11 @@
 #define SIM_GAME_INPUT_H
 
 typedef struct {
-    // Movement can probably just be one byte. For a traditional snake-game, only one directional-input is OK.
-    bool up;
-    bool down;
     bool right;
     bool left;
 } Simulation_Game_Input;
 
 static inline bool simulation_input_equal(Simulation_Game_Input a, Simulation_Game_Input b) {
-    if(a.up != b.up) {
-        return false;
-    }
-    if(a.down != b.down) {
-        return false;
-    }
     if(a.right != b.right) {
         return false;
     }