RoboSim current_sim
javax.swing.Timer ticker
java.awt.List playerList
java.awt.Canvas canvas
java.awt.TextField speed
java.awt.TextField addPlayerField
java.awt.Button reset
java.awt.Button addPlayer
java.awt.Button setSpeed
java.awt.Button startstop
int initial_robots_per_combatant
int skill_points
int length
int width
int obstacles