fix: error when new world is first in b.Worlds (#72)

Author: tobiasehlert

src/workers.go

@@ -73,10 +73,20 @@ func (b *Builder) housesWorker(client *resty.Client) error {
 
 	})
 
+	// Find the index of Antica in b.Worlds[] or fallback to first index
+	worldsIndex := func() int {
+		for i, world := range b.Worlds {
+			if world == "Antica" {
+				return i
+			}
+		}
+		return 0
+	}()
+
 	for _, town := range b.Towns {
 		log.Printf("[info] Retrieving data about houses and guildhalls in %s.", town)
 
-		ApiUrl := "https://" + TibiaDataAPIhost + "/v4/houses/" + b.Worlds[0] + "/" + url.QueryEscape(town)
+		ApiUrl := "https://" + TibiaDataAPIhost + "/v4/houses/" + b.Worlds[worldsIndex] + "/" + url.QueryEscape(town)
 		res, err := client.R().Get(ApiUrl)
 		if err != nil {
 			return fmt.Errorf("issue getting %s endpoint. Error: %s", ApiUrl, err)