import org.xpilotai.xpai;

public class Morty extends xpai {

	/*wall_feeler checks for walls at some degree and range from self ship */
	int wall_feeler(int range, int degree) {
		int res = AI_wallbetween(AIself_x(), AIself_y(), (int)(AIself_x() +  range * Math.cos( rad (degree))), (int)(AIself_y() + range * Math.sin(rad( degree))));
		if (res == -1) 
			return range;
			return res;
	}

	/* gets nearest enemy on screen or returns -1 if no enemy */
	int screen_enemy_num (int n) {
		if (AIship_x(n) == -1) return -1;
		else if (AI_teamplay() == 1 && AIself_team() != AIship_team(n)) return n;
		else return screen_enemy_num(n + 1);
	}

	/* gets nearest enemy on radar or -1 if none */
	int radar_enemy_num (int n) {
		if (AIradar_x(n) == -1) return -1;
		else if (AIradar_enemy(n) == 1) return n;
		else return radar_enemy_num(n + 1);
	}


	public void AImain() {
		int shipnum = screen_enemy_num(0);
		int rshipnum = radar_enemy_num(0);
		int wall_feeler1 = wall_feeler(500, angleadd(AIself_track(), -15));
		int wall_feeler2 = wall_feeler(500, angleadd(AIself_track(), 15));

		/* Dodge bullet if dangerous */
		if (AIshot_alert(0) > -1 && AIshot_alert(0) < 80) {
			AIself_turn(anglediff(AIself_heading(), angleadd(AIshot_idir(0), 90)));
			AIself_thrust(1);
		}
		/* Turn and shoot at nearest enemy ship on screen */
		else if (shipnum > -1) {
			AIself_turn(anglediff(AIself_heading(), AIship_aimdir(shipnum)));
			AIself_shoot(1);
		}
		/* Turn to radar ship, thrust if not going to fast, shoot otherwise */
		else if (rshipnum > -1) {
			AIself_turn(anglediff(AIself_heading(), AIradar_xdir(rshipnum)));
			if (AIself_vel() < 10)
				AIself_thrust(1);
			else
				AIself_shoot(1);
		}		

					
		/* dodges walls.  Two feelers out front at -15 and 15 degrees from track tell Morton the best way to turn to avoid the wall. */

		if (wall_feeler1 == wall_feeler2 && wall_feeler1 < (20 * AIself_vel()) && AIself_vel() > 1) {
			AIself_turn(anglediff(AIself_heading(), angleadd(180, AIself_track())));
			AIself_thrust(1);
		}
		else if (wall_feeler1 < wall_feeler2 && wall_feeler1 < (20 * AIself_vel()) && AIself_vel() > 1) {
			AIself_turn(anglediff(AIself_heading(), angleadd(180, angleadd(-15, AIself_track()))));
			AIself_thrust(1);
		}
		else if (wall_feeler1 > wall_feeler2 && wall_feeler2 < (20 * AIself_vel()) && AIself_vel() > 1) {
			AIself_turn(anglediff(AIself_heading(), angleadd(180, angleadd(15, AIself_track()))));
			AIself_thrust(1);
		}
		return;
	}
	

	public static void main(String[] args) {
		Morty morty = new Morty();
		morty.AI_setmaxturn(15);
		if (args.length > 0)
			morty.xpilot(args[0]);
		else
			morty.xpilot("-name morty");
	}
}