text: namespace R_physics
  {
  	extern float groundHeight;
  	extern float playerWidth;
  	extern float playerHeight;
  	extern float dotWidth;
  	extern float dotHeight;
  	extern float dashWidth;
  	extern float dashHeight;
  	extern float playerX, playerY;		
  	extern char curLetter;				//The current letter to be displayed on the screen
  	extern bool jumpForceOn;			//Set to true to make player jump and hover. Set to false to make player fall if in the air
  	extern long long SCORE;
  	extern float triPos[85][2];
  	extern long long HIGHSCORE;
  	float getPlayerX();
      float getPlayerY();					//x and y coordinates of player in physics system. SCALE BEFORE USE.
  	void stepPhysics();					//Call this in each iteration to update the physics world
  	void resetPhysics();
  }