initial commit

bash/bowling/bowling.sh

@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+#
+# V1: initial version
+
+shopt -s extglob
+
+# set to mask to enable logs. 0: none, 255: all
+(( debug=2#00000000 ))
+(( debug=2#00001111 ))
+# $1: log level (mask), then strings to display.
+debug () {
+    (( debug & $1 )) && shift && echo Line ${BASH_LINENO[0]}: "${@}" >&2
+}
+
+die () {
+    echo "${@}" >&2
+    exit 1
+}
+usage() {
+    die "usage: bowling.sh r1-20 [r21 [r22]]"
+}
+# pincount > 10. $1: frame
+highroll() {
+    die Frame "Frame $1: Pin count exceeds pins on the lane."
+}
+# pincount > 10. $1: frame
+negativeroll() {
+    die Frame "Frame $1: Negative roll is invalid."
+}
+
+
+# args test: 10 rolls mandatory
+#(($# < 20)) && usage
+rolls=($@)
+debug 1 rolls=${rolls[@]}
+
+((score = 0))                                     # total score
+((tempscore = 0))                                 # tmp score (for spare/strike)
+
+declare -a frames                                 # frames scores
+declare -a opened                                 # spare:2, strike:1
+
+((frame=-1))                                       # current frame
+
+((curroll=1))                                     # roll in frame: 1:1st, 2:2nd
+((i=0))
+for ((roll=0; roll<$#; ++roll)); do
+    debug 2 loop roll="$roll"
+
+    (( ! roll % 2 && frame++ ))
+    exit 0
+    (( score=${rolls[$i]} ))
+    #(( score < 0 )) && || score > 10)) && echo 1
+    #if ((!roll % 2)); then                        # first roll in frame
+
+
+    ((framescore=0))                              # current frame score
+
+
+    for j in 0 1; do
+        (( roll = ${rolls[$i]} ))
+        ((roll < 0)) && die Frame $((curframe+1)): Negative roll is invalid.
+        (( framescore += roll ))
+        ((framescore == 10)) && ((opened[$curframe] = j+1))
+        (( i++ ))
+    done
+    debug 2 curframe=$curframe score=$framescore
+
+    #if ((roll))
+
+    ((framescore > 10)) && wrongroll $curframe $curroll $framescore
+
+    frame[$curframe]=$framescore
+
+
+    ((curroll = -curroll))
+done
+
+# emacs/vim settings.
+# Local Variables:
+# sh-basic-offset: 4
+# indent-tabs-mode: nil
+# comment-column: 50
+# fill-column: 80
+# End:
+# vim: set tabstop=4 expandtab: