From f901da344e0da39bce1a283fbdcf51ca8d6bf258 Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Tue, 29 Jun 2021 18:06:12 +0100
Subject: [PATCH] Add CargoTypesBit helper method to CargoSpec

---
 src/cargotype.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/cargotype.h b/src/cargotype.h
index e56e3c5955..511fa8c23e 100644
--- a/src/cargotype.h
+++ b/src/cargotype.h
@@ -90,6 +90,15 @@ struct CargoSpec {
 		return this - CargoSpec::array;
 	}
 
+	/**
+	 * Determine CargoTypes bit of this cargospec
+	 * @return CargoTypes bit
+	 */
+	inline CargoTypes CargoTypesBit() const
+	{
+		return static_cast<CargoTypes>(1) << this->Index();
+	}
+
 	/**
 	 * Tests for validity of this cargospec
 	 * @return is this cargospec valid?