The server physics update loop

gistfile1.cs

        /// <summary>
        /// Compute the next state for this game, based on player inputs and ball position
        /// </summary>
        /// <param name="game"></param>
        private static void ProcessTick(Game game)
        {            
            // 1: Apply inputs received from players (and progressively remove them from the buffer)
            // 2: Update ball position
            // 3: Check for collisions and if collision, update ball status
            // 4: If no collision, check for a goal condition and update status if goal
            
            // 1: TODO Write Unit Test
            MovePlayer(game.Player1, FIELD_HEIGHT);
            MovePlayer(game.Player2, FIELD_HEIGHT);
            // 2: TODO Write Unit Test
            UpdateBallPosition(game.Ball); // Just update (X,Y) based on the angle
            // 3: TODO Write Unit Test
            if (!CheckCollisions(game))
            {
                // 4: TODO Write Unit Test
                var goal = CheckGoalConditionAndUpdateStatus(game);
                if (goal)
                {                    
                    _goalTimestamps.Add(game.GameId, DateTime.Now);               
                    RestartGameAfterGoal(game);                    
                }                
            }
      }