Add chicken bits setting

2 bits so far

src/debug_settings.h

@@ -0,0 +1,28 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD 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, version 2.
+ * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file debug_settings.h Debug settings. */
+
+#ifndef DEBUG_SETTINGS_H
+#define DEBUG_SETTINGS_H
+
+#include "settings_type.h"
+#include "core/bitmath_func.hpp"
+
+enum ChickenBitFlags {
+	DCBF_VEH_TICK_CACHE            = 0,
+	DCBF_MP_NO_STATE_CSUM_CHECK    = 1,
+};
+
+inline bool HasChickenBit(ChickenBitFlags flag)
+{
+	return HasBit(_settings_game.debug.chicken_bits, flag);
+}
+
+#endif /* DEBUG_SETTINGS_H */