Team members:
Kongming Cao 661850357
Hongyang Lin 661613896

To start the game, use "Field" in the scene directory, and press each number key (1, 2, or 3) to start each part. 

1. 
separation weight = 10;
cohesion weight = 1;
alignment weight = 1;

2. Each agent detects closest obstables and avoid using collision prediction / avoidance.
follow path weight = 5;
separation weight = 10;
cohesion weight = 1;
alignment weight = 1;

3. I only used three lines. Three parallel lines are sufficient in most cases and can handle tunnel really well. More raycasts make agent less willing to go into the tunnel.

Note: Use "E" to start action. "S" is occupied by player movement.
"R": restart.
Part 2: "C" to use collision avoidance, "P" to use collision prediction.