kotlin-racingcar-precourse

🏎️ Car Racing Game

🎮 Game Rules

1. Car Entry

   • Users input car names (comma-separated).
   • Each name must be non-empty and 5 characters max.
   • Example: pobi,woni,jun

2. Rounds

   • Users enter the number of race rounds.
   • Each round, every car either moves forward or stays still.

3. Movement Mechanics

   • Each car has a 60% chance to move forward per round.
   • Random number [0-9] is generated → moves if number ≥ 4.

4. Visual Progress

   • After each round, each car’s position is printed with hyphens:

     pobi : --
     woni : ----
     jun  : ---
     

5. Winning Criteria

   • After the final round, the car(s) with the maximum distance win.
   • Ties are allowed — multiple winners are displayed comma-separated.

6. Input Validation

   • Invalid inputs (e.g. empty names, too long, negative rounds) will result in an IllegalArgumentException and program termination.

🧪 Example Run

Enter the names of the cars (comma-separated):
pobi,woni,jun
 
How many rounds will be played?
5
 
Race Results
pobi : -
woni : 
jun  : -
 
pobi : --
woni : -
jun  : --
 
pobi : ---
woni : --
jun  : ---
 
pobi : ----
woni : ---
jun  : ----
 
pobi : -----
woni : ----
jun  : -----
 
Winners : pobi, jun

✅ Features Implemented

• Car names and number of rounds inputs
• Movement logic with random number generation
• Round-by-round progress display
• Multiple winner support
• Exception handling for invalid input