Add example pack generator

example/gen-packs-mlp/main.go

@@ -0,0 +1,42 @@
+package main // import "git.fromouter.space/mcg/draft/example/gen-packs/mlp"
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+
+	"git.fromouter.space/mcg/draft"
+	"git.fromouter.space/mcg/draft/mlp"
+)
+
+func main() {
+	setname := flag.String("set", "PR", "Set to make a pack for (PR/CN/CG..)")
+	count := flag.Int("packs", 1, "How many packs to generate")
+	flag.Parse()
+
+	set, err := mlp.LoadSetHTTP(mlp.SetID(strings.ToUpper(*setname)))
+	checkErr(err, "Could not load set")
+
+	for i := 0; i < *count; i++ {
+		if *count > 1 {
+			fmt.Printf("Pack %d: ", i+1)
+		}
+		pack := draft.MakePack(set)
+		fmt.Printf("%s\n  URL: %s\n", pack, ponyheadURL(pack))
+	}
+}
+
+func checkErr(err error, fmtstr string, fmtargs ...interface{}) {
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "[FATAL ERROR] "+fmtstr+":\n  "+err.Error(), fmtargs...)
+		os.Exit(1)
+	}
+}
+
+func ponyheadURL(pack draft.Pack) string {
+	str := "http://ponyhead.com/deckbuilder?v1code="
+	for _, card := range pack {
+		str += card.ID + "x1-"
+	}
+	return strings.TrimRight(str, "-")
+}