From 8329fc5213d18884ca298b0a2ca7f62202ee8153 Mon Sep 17 00:00:00 2001
From: Alain Gilbert <alain.gilbert.15@gmail.com>
Date: Tue, 26 Jan 2021 13:02:04 -0800
Subject: [PATCH] add HasFlyableShips to ShipsInfos

---
 ships.go | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/ships.go b/ships.go
index 61ae3d1d..9ad4117a 100644
--- a/ships.go
+++ b/ships.go
@@ -52,6 +52,19 @@ func (s ShipsInfos) HasShips() bool {
 	return false
 }
 
+// HasFlyableShips returns either or not at least one flyable ship is present
+func (s ShipsInfos) HasFlyableShips() bool {
+	for _, ship := range Ships {
+		shipID := ship.GetID()
+		if shipID.IsFlyableShip() {
+			if s.ByID(shipID) > 0 {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 // Speed returns the speed of the slowest ship
 func (s ShipsInfos) Speed(techs Researches, isCollector, isGeneral bool) int64 {
 	var minSpeed int64 = math.MaxInt64