cleaned up ticTacToe formatting, added a todo list

bin/ticTacToe

@@ -1,7 +1,12 @@
 #!/bin/bash
 # -----------------------------------------------------------------------------
 # Written by:	P.Hurley
-#          	A multi-player game of tic-tac-toe
+#          	A multiplayer game of tic-tac-toe
+#
+# TODOs:
+#	-user multiplayer (same system)
+#	-network multiplayer (LAN/WAN)
+#	-AI opponent (Easy/Medium/Hard)
 # -----------------------------------------------------------------------------
 
 VERSION=1.0.0
@@ -49,7 +54,7 @@ while [[ "$1" =~ ^-.* ]]; do
 			USAGE
 			exit 1
 		;;
-	esac;			shift
+	esac;
 done
 
 # --- Variable Initialization -------------------------------------------------
@@ -59,21 +64,21 @@ a1=' ';a2=' ';a3=' '
 b1=' ';b2=' ';b3=' '
 c1=' ';c2=' ';c3=' '
 
-# horizontal wins
+# horizontal win patterns
 xh1="XXX......";xh2="...XXX...";xh3="......XXX"
 oh1="OOO......";oh2="...OOO...";oh3="......OOO"
 
-# vertical wins
+# vertical win patterns
 xv1="X..X..X..";xv2=".X..X..X.";xv3="..X..X..X"
 ov1="O..O..O..";ov2=".O..O..O.";ov3="..O..O..O"
 
-# diagonal wins
+# diagonal win patterns
 xd1="X...X...X";xd2="..X.X.X.."
 od1="O...O...O";od2="..O.O.O.."
 
-winner=''
-turn='X'
-i=1
+winner=''	# Explicitly defined as empty.
+turn='X'	# Player who goes first.
+i=1		# Used to count turns.
 
 # --- Functions ---------------------------------------------------------------