From: Scott Worley <sworley@chkno.net>
Date: Thu, 3 Nov 2011 23:09:13 +0000 (-0700)
Subject: Read --end into a map
X-Git-Url: http://git.scottworley.com/planeteer/commitdiff_plain/1c1ede6836ed424330981ce160a8dd38e6759f48

Read --end into a map
---

diff --git a/planeteer.go b/planeteer.go
index d5c359a..c207c13 100644
--- a/planeteer.go
+++ b/planeteer.go
@@ -32,7 +32,7 @@ var start = flag.String("start", "",
 var flight_plan_string = flag.String("flight_plan", "",
 	"Your hidey-holes for the day, comma-separated.")
 
-var end = flag.String("end", "",
+var end_string = flag.String("end", "",
 	"A comma-separated list of acceptable ending planets.")
 
 var planet_data_file = flag.String("planet_data_file", "planet-data",
@@ -60,18 +60,29 @@ var visit_string = flag.String("visit", "",
 
 func visit() []string {
 	if *visit_string == "" {
-		return []string{}
+		return nil
 	}
 	return strings.Split(*visit_string, ",")
 }
 
 func flight_plan() []string {
 	if *flight_plan_string == "" {
-		return []string{}
+		return nil
 	}
 	return strings.Split(*flight_plan_string, ",")
 }
 
+func end() map[string]bool {
+	if *end_string == "" {
+		return nil
+	}
+	m := make(map[string]bool)
+	for _, p := range strings.Split(*flight_plan_string, ",") {
+		m[p] = true
+	}
+	return m
+}
+
 type Commodity struct {
 	BasePrice int
 	CanSell   bool