From 0f81a5a70be20a82ee8495f050366a28d0be21c7 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano.tronto@gmail.com>
Date: Sat, 25 Dec 2021 20:29:22 +0100
Subject: Added the invert and unniss commands

---
 src/commands.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/commands.h |  2 +-
 2 files changed, 52 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/commands.c b/src/commands.c
index 85b62ac..7d30c88 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -6,17 +6,20 @@ CommandArgs *           solve_parse_args(int c, char **v);
 CommandArgs *           gen_parse_args(int c, char **v);
 CommandArgs *           help_parse_args(int c, char **v);
 CommandArgs *           print_parse_args(int c, char **v);
+CommandArgs *           parse_only_scramble(int c, char **v);
 CommandArgs *           parse_no_arg(int c, char **v);
 
 /* Exec functions ************************************************************/
 
 static void             gen_exec(CommandArgs *args);
+static void             invert_exec(CommandArgs *args);
 static void             solve_exec(CommandArgs *args);
 static void             steps_exec(CommandArgs *args);
 static void             commands_exec(CommandArgs *args);
 static void             print_exec(CommandArgs *args);
 static void             help_exec(CommandArgs *args);
 static void             quit_exec(CommandArgs *args);
+static void             unniss_exec(CommandArgs *args);
 static void             version_exec(CommandArgs *args);
 
 /* Local functions ***********************************************************/
@@ -44,6 +47,15 @@ gen_cmd = {
 	.exec        = gen_exec
 };
 
+Command
+invert_cmd = {
+	.name        = "invert",
+	.usage       = "invert SCRAMBLE]",
+	.description = "Invert a scramble",
+	.parse_args  = parse_only_scramble,
+	.exec        = invert_exec,
+};
+
 Command
 steps_cmd = {
 	.name        = "steps",
@@ -89,6 +101,15 @@ quit_cmd = {
 	.exec        = quit_exec,
 };
 
+Command
+unniss_cmd = {
+	.name        = "unniss",
+	.usage       = "unniss SCRAMBLE",
+	.description = "Rewrite a scramble without NISS",
+	.parse_args  = parse_only_scramble,
+	.exec        = unniss_exec,
+};
+
 Command
 version_cmd = {
 	.name        = "version",
@@ -102,10 +123,12 @@ Command *commands[NCOMMANDS] = {
 	&commands_cmd,
 	&gen_cmd,
 	&help_cmd,
+	&invert_cmd,
 	&print_cmd,
 	&quit_cmd,
 	&solve_cmd,
 	&steps_cmd,
+	&unniss_cmd,
 	&version_cmd,
 };
 
@@ -244,6 +267,16 @@ help_parse_args(int c, char **v)
 	return a;
 }
 
+CommandArgs *
+parse_only_scramble(int c, char **v)
+{
+	CommandArgs *a = new_args();
+
+	a->success = read_scramble(c, v, a);
+
+	return a;
+}
+
 CommandArgs *
 parse_no_arg(int c, char **v)
 {
@@ -302,6 +335,17 @@ gen_exec(CommandArgs *args)
 	fprintf(stderr, "Done!\n");
 }
 
+static void
+invert_exec(CommandArgs *args)
+{
+	Alg *inv;
+
+	inv = inverse_alg(args->scramble);
+	print_alg(inv, false);
+
+	free_alg(inv);
+}
+
 static void
 steps_exec(CommandArgs *args)
 {
@@ -356,6 +400,13 @@ quit_exec(CommandArgs *args)
 	exit(0);
 }
 
+static void
+unniss_exec(CommandArgs *args)
+{
+	unniss(args->scramble);
+	print_alg(args->scramble, false);
+}
+
 static void
 version_exec(CommandArgs *args)
 {
diff --git a/src/commands.h b/src/commands.h
index 938a0bd..7773827 100644
--- a/src/commands.h
+++ b/src/commands.h
@@ -4,7 +4,7 @@
 #include "solve.h"
 #include "steps.h"
 
-#define NCOMMANDS       10
+#define NCOMMANDS       20
 
 void                    free_args(CommandArgs *args);
 CommandArgs *           new_args();
-- 
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