As we cannot install outside the Store, and those games do not create the
needed files on their own, we need a wrapper script.  This script also do
`chmod ug+w`, to allow users in default setup (all users belong to group
'users') to use this games.  Enhancing security for those old games is left to
local administrator, for now.

diff -Naur bsd-games-2.17/atc/Makefrag bsd-games-patch/atc/Makefrag
--- bsd-games-2.17/atc/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/atc/Makefrag	2020-04-23 20:24:04.446176222 +0700
@@ -47,7 +47,8 @@
 	mv atc/lex.yy.c $@
 
 atc_install:	atc_all
-	$(INSTALL_SCORE_GAME) atc/atc $(INSTALL_PREFIX)$(GAMESDIR)/atc
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/atc
+	$(INSTALL_SCORE_GAME) atc/atc $(INSTALL_PREFIX)$(GAMESDIR)/.atc-real
 	$(HIDE_GAME) atc
 	$(INSTALL_SCORE_FILE) $(ATC_SCOREFILE)
 	$(INSTALL_MANUAL) atc/atc.6
diff -Naur bsd-games-2.17/battlestar/Makefrag bsd-games-patch/battlestar/Makefrag
--- bsd-games-2.17/battlestar/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/battlestar/Makefrag	2020-04-23 20:24:04.482175771 +0700
@@ -32,7 +32,8 @@
 battlestar_all:	battlestar/battlestar battlestar/battlestar.6
 
 battlestar_install:	battlestar_all
-	$(INSTALL_SCORE_GAME) battlestar/battlestar $(INSTALL_PREFIX)$(GAMESDIR)/battlestar
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/battlestar
+	$(INSTALL_SCORE_GAME) battlestar/battlestar $(INSTALL_PREFIX)$(GAMESDIR)/.battlestar-real
 	$(HIDE_GAME) battlestar
 	$(INSTALL_MANUAL) battlestar/battlestar.6
 	$(INSTALL_SCORE_FILE) $(BATTLESTAR_SCOREFILE)
diff -Naur bsd-games-2.17/canfield/canfield/Makefrag bsd-games-patch/canfield/canfield/Makefrag
--- bsd-games-2.17/canfield/canfield/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/canfield/canfield/Makefrag	2020-04-23 20:24:04.522175270 +0700
@@ -31,7 +31,8 @@
 canfield_canfield_all:	canfield/canfield/canfield canfield/canfield/canfield.6
 
 canfield_canfield_install: canfield_canfield_all
-	$(INSTALL_SCORE_GAME) canfield/canfield/canfield $(INSTALL_PREFIX)$(GAMESDIR)/canfield
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/canfield
+	$(INSTALL_SCORE_GAME) canfield/canfield/canfield $(INSTALL_PREFIX)$(GAMESDIR)/.canfield-real
 	$(HIDE_GAME) canfield
 	$(INSTALL_MANUAL) canfield/canfield/canfield.6
 	$(INSTALL_SCORE_FILE) $(CANFIELD_SCOREFILE)
diff -Naur bsd-games-2.17/cribbage/Makefrag bsd-games-patch/cribbage/Makefrag
--- bsd-games-2.17/cribbage/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/cribbage/Makefrag	2020-04-23 20:24:04.534175120 +0700
@@ -31,7 +31,8 @@
 cribbage_all:	cribbage/cribbage cribbage/cribbage.n cribbage/cribbage.6
 
 cribbage_install:	cribbage_all
-	$(INSTALL_SCORE_GAME) cribbage/cribbage $(INSTALL_PREFIX)$(GAMESDIR)/cribbage
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/cribbage
+	$(INSTALL_SCORE_GAME) cribbage/cribbage $(INSTALL_PREFIX)$(GAMESDIR)/.cribbage-real
 	$(HIDE_GAME) cribbage
 	$(INSTALL_DATA) cribbage/cribbage.n $(INSTALL_PREFIX)$(CRIBBAGE_INSTRFILE)
 	$(INSTALL_SCORE_FILE) $(CRIBBAGE_SCOREFILE)
diff -Naur bsd-games-2.17/hack/Makefrag bsd-games-patch/hack/Makefrag
--- bsd-games-2.17/hack/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/hack/Makefrag	2020-04-23 20:24:04.590174419 +0700
@@ -53,7 +53,8 @@
 hack/hack.zap.d hack/rnd.d:	hack/hack.onames.h
 
 hack_install:	hack_all
-	$(INSTALL_SCORE_GAME) hack/hack $(INSTALL_PREFIX)$(GAMESDIR)/hack
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/hack
+	$(INSTALL_SCORE_GAME) hack/hack $(INSTALL_PREFIX)$(GAMESDIR)/.hack-real
 	$(HIDE_GAME) hack
 	$(INSTALL_HACK_DIR) $(INSTALL_PREFIX)$(HACK_DIR)
 	set -e; for f in data help hh rumors; do $(INSTALL_DATA) hack/$$f $(INSTALL_PREFIX)$(HACK_DIR)/$$f; done
diff -Naur bsd-games-2.17/phantasia/Makefrag bsd-games-patch/phantasia/Makefrag
--- bsd-games-2.17/phantasia/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/phantasia/Makefrag	2020-04-23 20:24:04.650173667 +0700
@@ -38,7 +38,8 @@
 	touch phantasia/scorefiles.stamp
 
 phantasia_install:	phantasia_all
-	$(INSTALL_SCORE_GAME) phantasia/phantasia $(INSTALL_PREFIX)$(GAMESDIR)/phantasia
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/phantasia
+	$(INSTALL_SCORE_GAME) phantasia/phantasia $(INSTALL_PREFIX)$(GAMESDIR)/.phantasia-real
 	$(HIDE_GAME) phantasia
 	(set -e; for f in $(phantasia_VFILES1); do \
 	    cp phantasia/$$f $(INSTALL_PREFIX)$(PHANTASIA_DIR)/$$f; \
diff -Naur bsd-games-2.17/robots/Makefrag bsd-games-patch/robots/Makefrag
--- bsd-games-2.17/robots/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/robots/Makefrag	2020-04-23 20:24:04.702173016 +0700
@@ -32,7 +32,8 @@
 robots_all:	robots/robots robots/robots.6
 
 robots_install:	robots_all
-	$(INSTALL_SCORE_GAME) robots/robots $(INSTALL_PREFIX)$(GAMESDIR)/robots
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/robots
+	$(INSTALL_SCORE_GAME) robots/robots $(INSTALL_PREFIX)$(GAMESDIR)/.robots-real
 	$(HIDE_GAME) robots
 	$(INSTALL_SCORE_FILE) $(ROBOTS_SCOREFILE)
 	$(INSTALL_MANUAL) robots/robots.6
diff -Naur bsd-games-2.17/sail/Makefrag bsd-games-patch/sail/Makefrag
--- bsd-games-2.17/sail/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/sail/Makefrag	2020-04-23 20:24:04.710172917 +0700
@@ -31,7 +31,8 @@
 sail_all:	sail/sail sail/sail.6
 
 sail_install:	sail_all
-	$(INSTALL_SCORE_GAME) sail/sail $(INSTALL_PREFIX)$(GAMESDIR)/sail
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/sail
+	$(INSTALL_SCORE_GAME) sail/sail $(INSTALL_PREFIX)$(GAMESDIR)/.sail-real
 	$(HIDE_GAME) sail
 	$(INSTALL_SCORE_FILE) $(SAIL_SCOREFILE)
 	$(INSTALL_SAIL_DIR) $(INSTALL_PREFIX)$(SAIL_DIR)
diff -Naur bsd-games-2.17/snake/snake/Makefrag bsd-games-patch/snake/snake/Makefrag
--- bsd-games-2.17/snake/snake/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/snake/snake/Makefrag	2020-04-23 20:24:04.722172766 +0700
@@ -31,7 +31,8 @@
 snake_snake_all:	snake/snake/snake snake/snake/snake.6
 
 snake_snake_install:	snake_snake_all
-	$(INSTALL_SCORE_GAME) snake/snake/snake $(INSTALL_PREFIX)$(GAMESDIR)/snake
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/snake
+	$(INSTALL_SCORE_GAME) snake/snake/snake $(INSTALL_PREFIX)$(GAMESDIR)/.snake-real
 	$(HIDE_GAME) snake
 	$(INSTALL_SCORE_FILE) $(SNAKE_SCOREFILE)
 	$(INSTALL_SCORE_FILE) $(SNAKE_RAWSCOREFILE)
diff -Naur bsd-games-2.17/tetris/Makefrag bsd-games-patch/tetris/Makefrag
--- bsd-games-2.17/tetris/Makefrag	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/tetris/Makefrag	2020-04-23 20:24:04.734172616 +0700
@@ -32,7 +32,8 @@
 tetris_all:	tetris/tetris tetris/tetris.6
 
 tetris_install:	tetris_all
-	$(INSTALL_SCORE_GAME) tetris/tetris $(INSTALL_PREFIX)$(GAMESDIR)/tetris-bsd
+	$(INSTALL_SCORE_GAME) wrapper $(INSTALL_PREFIX)$(GAMESDIR)/tetris-bsd
+	$(INSTALL_SCORE_GAME) tetris/tetris $(INSTALL_PREFIX)$(GAMESDIR)/.tetris-bsd-real
 	$(HIDE_GAME) tetris-bsd
 	$(INSTALL_SCORE_FILE) $(TETRIS_SCOREFILE)
 	ln -f tetris/tetris.6 tetris/tetris-bsd.6
diff -Naur bsd-games-2.17/wrapper bsd-games-patch/wrapper
--- bsd-games-2.17/wrapper	1970-01-01 07:00:00.000000000 +0700
+++ bsd-games-patch/wrapper	2020-04-23 20:24:37.153766719 +0700
@@ -0,0 +1,77 @@
+#!/bin/sh
+# this file works around limitations of read-only Store
+
+set -e
+
+check_empty_files () {
+    # those start empty
+    for f in ${@}
+    do
+        if [[ ! -f ${f} ]]
+        then
+            touch      ${f}
+            chmod ug+w ${f}
+            echo "$(pwd)/${f} RESTORED"
+        fi
+    done
+}
+# about chmod ug+w: lets imagine that the first player is a Wizard of the game
+# which is responsible for setting a proper groups and permissions by hand, if
+# those aren't OK.
+check_data_files () {
+    # those start with some initial data
+    for f in ${@}
+    do
+        if [[ ! -f ${f} ]]
+        then
+            cp STATIC_DATA/$(basename $(pwd))/${f} ${f}
+            chmod ug+w ${f}  # should be writable too
+            echo "$(pwd)/${f} RESTORED"
+        fi
+    done
+}
+visit_state_dir () {
+    state_dir=SAVE_FILES/${1}
+    if [[ ! -d ${state_dir} ]]
+    then
+        mkdir -p ${state_dir}
+    fi
+    cd ${state_dir}
+}
+
+game=$(basename $0)
+
+visit_state_dir
+case ${game} in
+    ### Games with score-files
+    *atc)
+        check_empty_files "atc_score";;
+    *battlestar)
+        check_empty_files "battlestar.log";;
+    *canfield)
+        check_empty_files "cfscores";;
+    *cribbage)
+        check_empty_files "criblog";;
+    *robots)
+        check_empty_files "robots_roll";;
+    *snake)
+        check_empty_files "snakerawscores" "snake.log";;
+    *tetris)
+        check_empty_files "tetris-bsd.scores";;
+    *sail)
+        visit_state_dir "sail"
+        check_empty_files "log";;
+    ### Games with saved state
+    *phantasia)
+        visit_state_dir "phantasia"
+        check_empty_files "characs" "gold" "lastdead"\
+                          "mess" "motd" "scoreboard" "void"
+        check_data_files "monsters";;
+    *hack)
+        visit_state_dir "hack"
+        check_empty_files "record" "perm"
+        check_data_files "data" "help" "hh" "rumors"
+        visit_state_dir "hack/save";;
+esac
+
+exec .${game}-real ${@}