added example game of chess that uses gnuchess as backend

1 files changed, 31 insertions, 0 deletions

diff --git a/examples/chess/gnuchess-to-hackvr.sh b/examples/chess/gnuchess-to-hackvr.sh
new file mode 100755
index 0000000..0b94a87
--- /dev/null
+++ b/examples/chess/gnuchess-to-hackvr.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+tee /dev/stderr | while read first second third;do
+  if [ "_$first" = "_feature" ];then
+    printf "# just gnuchess saying what features it has: %s %s %s\n" "$first" "$second" "$third" >&2
+  elif printf "%s\n" "$first" | grep '^[0-9][0-9]*\.$' >/dev/null 2>&1;then
+    #we made a successful move.
+    ### how to tell hackvr to move the piece now? $second should contain what the move was.
+    printf "# Hey! Hackvr! do this move: %s\n" "$second" >&2
+    if [ "_$second" = "_..." ];then #computer/other person made a move.
+      move=$third
+    else
+      move=$second
+    fi
+      from=$(printf "%s\n" "$move" | fold -w1 | head -n2 | tr -d '\n')
+      to=$(printf "%s\n" "$move" | fold -w1 | tail -n+3 | head -n2 | tr -d '\n')
+      x=$(echo "a b c d e f g h" | tr ' ' '\n' | grep -n "$(printf "%s\n" "$to" | fold -w1 | head -n1)" | cut -d: -f1)
+      y=$(printf "%s\n" "$to" | fold -w1 | tail -n1)
+      magic=$(printf "%s\n" "$move" | fold -w1 | tail -n+5 | tr -d '\n')
+### if the board is on the wall we need to use x and y
+#    printf "piece_%s move %s %s 0\n" "$from" "$x" "$y" | tee /dev/stderr
+### the board is on the floor atm. use x and z
+    printf "piece_%s move %s 0 %s\n" "$from" "$x" "$y" | tee /dev/stderr
+
+    printf "#delete the old piece_%s group\n"
+    printf "epoch deletegroup piece_%s\n" "$to"
+    printf "epoch renamegroup piece_%s piece_%s\n" "$from" "$to" | tee /dev/stderr
+  else
+    #something else.
+    printf "oops. something else happened. let's see: %s %s %s\n" "$first" "$second" "$third" >&2
+  fi
+done