shithub: puzzles

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Permit users to reconfigure the default setting for each puzzle using
another of those hacky environment variables.

[originally from svn r9455]

--- a/midend.c

+++ b/midend.c

@@ -106,6 +106,22 @@

     me->nstates = me->statesize = me->statepos = 0;

     me->states = NULL;

     me->params = ourgame->default_params();

+    /*

+     * Allow environment-based changing of the default settings by

+     * defining a variable along the lines of `NET_DEFAULT=25x25w'

+     * in which the value is an encoded parameter string.

+     */

+    {

+        char buf[80], *e;

+        int j, k;

+        sprintf(buf, "%s_DEFAULT", me->ourgame->name);

+	for (j = k = 0; buf[j]; j++)

+	    if (!isspace((unsigned char)buf[j]))

+		buf[k++] = toupper((unsigned char)buf[j]);

+	buf[k] = '\0';

+        if ((e = getenv(buf)) != NULL)

+            me->ourgame->decode_params(me->params, e);

+    }

     me->curparams = NULL;

     me->desc = me->privdesc = NULL;

     me->seedstr = NULL;