run_simulation.py

#!/usr/bin/env python3
"""
Launcher script for the Traffic Simulation.
This script provides an easy way to run the simulation with error handling.
"""

import sys
import os

def main():
    """Launch the traffic simulation."""
    print("🚦 Traffic Simulation - OS Scheduling Demo")
    print("=" * 50)
    
    try:
        # Check if pygame is available
        try:
            import pygame
            print(f"✓ Pygame {pygame.version.ver} detected")
        except ImportError:
            print("❌ Pygame not found. Please install it with:")
            print("   pip install pygame")
            return 1
        
        # Import and run simulation
        from main import TrafficSimulation
        
        print("✓ Starting simulation...")
        print("\nControls:")
        print("  1-4: Switch algorithms")
        print("  SPACE: Pause/Resume")
        print("  ESC: Quit")
        print("\nStarting in 3 seconds...")
        
        import time
        time.sleep(3)
        
        # Create and run simulation
        simulation = TrafficSimulation()
        simulation.run()
        
    except KeyboardInterrupt:
        print("\n\n👋 Simulation stopped by user")
        return 0
    except Exception as e:
        print(f"\n❌ Error running simulation: {e}")
        import traceback
        traceback.print_exc()
        return 1
    
    return 0

if __name__ == "__main__":
    sys.exit(main())