Mix in PID with initial seed.

[rrace.git] / src / time.c

diff --git a/src/time.c b/src/time.c
new file mode 100644 (file)
index 0000000..0e8330c
--- /dev/null
+++ b/src/time.c
@@ -0,0 +1,33 @@
+/*
+ * Slide puzzle game timer logic
+ * Copyright © 2022-2023 Nick Bowler
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdint.h>
+#include <gethrxtime.h>
+
+#include "game.h"
+
+void game_begin(struct board *board)
+{
+       board->time_start = gethrxtime();
+}
+
+int_fast32_t game_elapsed(struct board *board)
+{
+       return (gethrxtime() - board->time_start) / 1000000;
+}