perl batnum

08_Batnum/perl/batnum.pl

@@ -0,0 +1,93 @@
+use strict;
+use warnings;
+
+my %WIN_OPTIONS = (
+    "UNDEFINED" => 0,
+    "TAKE_LAST" => 1,
+    "AVOID_LAST" => 2,
+);
+
+my %START_OPTIONS = (
+    "UNDEFINED" => 0,
+    "COMPUTER_FIRST" => 1,
+    "PLAYER_FIRST" => 2,
+);
+
+sub run {
+    my $pile_size = undef;
+    my $min_select = undef;
+    my $max_select = undef;
+    my $win_option = undef;
+    my $start_option = undef;
+
+    # while (1) {
+        write_intro();
+
+        ($pile_size, $min_select, $max_select, $win_option, $start_option) 
+            = &get_user_input();
+
+        play($pile_size, $min_select, $max_select, $win_option, $start_option);
+    # }
+}
+
+sub write_intro {
+    printf "%33s", "BATNUM\n";
+    printf "%15s", "CREATIVE COMPUTING  MORRISSTOWN, NEW JERSEY\n";
+    printf "%s", "\n";
+    printf "%s", "\n";
+    printf "%s", "\n";
+    printf "%s", "THIS PROGRAM IS A 'BATTLE OF NUMBERS' GAME, WHERE THE\n";
+    printf "%s", "COMPUTER IS YOUR OPPONENT.\n";
+    printf "%s", "\n";
+    printf "%s", "THE GAME STARTS WITH AN ASSUMED PILE OF OBJECTS. YOU\n";
+    printf "%s", "AND YOUR OPPONENT ALTERNATELY REMOVE OBJECTS FROM THE PILE.\n";
+    printf "%s", "WINNING IS DEFINED IN ADVANCE AS TAKING THE LAST OBJECT OR\n";
+    printf "%s", "NOT. YOU CAN ALSO SPECIFY SOME OTHER BEGINNING CONDITIONS.\n";
+    printf "%s", "DON'T USE ZERO, HOWEVER, IN PLAYING THE GAME.\n";
+    printf "%s", "ENTER A NEGATIVE NUMBER FOR NEW PILE SIZE TO STOP PLAYING.\n";
+    printf "%s", "\n";
+}
+
+# TODO: check input
+sub get_user_input {
+    my $pile_size = 0;
+    my $min_select = 0;
+    my $max_select = 0;
+    my $win_option = $WIN_OPTIONS{ "UNDEFINED" };
+    my $start_option = $START_OPTIONS{ "UNDEFINED" };
+
+    while ($pile_size < 1) {
+        printf "%s", "ENTER PILE SIZE: ";
+        $pile_size = <>;
+        $pile_size *= 1;
+    }
+
+    while ($win_option eq $WIN_OPTIONS{ "UNDEFINED" }) {
+        printf "%s", "ENTER WIN OPTION - 1 TO TAKE LAST, 2 TO AVOID LAST: ";
+        $win_option = <>;
+        $win_option *= 1;
+    }
+
+    # get min select max select
+
+    while ($start_option eq $START_OPTIONS{ "UNDEFINED" }) {
+        printf "%s", "ENTER START OPTION - 1 COMPUTER FIRST, 2 YOU FIRST: ";
+        $start_option = <>;
+        $start_option *= 1;
+    }
+
+    return ($pile_size, $min_select, $max_select, $win_option, $start_option);
+}
+
+sub play {
+    my $pile_size = shift;
+    my $min_select = shift;
+    my $max_select = shift;
+    my $win_option = shift;
+    my $start_option = shift;
+
+    print("pile_size: $pile_size\n");
+    print("win_option: $win_option\n");
+}
+
+run();