fixed higher speed collisions, removed Speed comp, put into Velocity

config/config.go

@@ -0,0 +1,77 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"github.com/knadh/koanf"
+	"github.com/knadh/koanf/providers/env"
+	"github.com/knadh/koanf/providers/posflag"
+	flag "github.com/spf13/pflag"
+)
+
+const Usage string = `openquell [options]
+-t --tps  <ticks>      Set ticks per second, default 60.
+-d --debug             Enable debugging output.
+`
+
+type Config struct {
+	TPS        int    `koanf:"tps"`
+	Loglevel   string `koanf:"loglevel"`
+	Debug      bool   `koanf:"debug"` // loglevel=debug
+	Startlevel int
+}
+
+func InitConfig() (*Config, error) {
+	var kloader = koanf.New(".")
+
+	flagset := flag.NewFlagSet("config", flag.ContinueOnError)
+	flagset.BoolP("debug", "d", false, "enable debug log")
+
+	flagset.Usage = func() {
+		fmt.Println(Usage)
+		os.Exit(0)
+	}
+
+	flagset.IntP("tps", "t", 0, "TPS")
+
+	if err := flagset.Parse(os.Args[1:]); err != nil {
+		return nil, fmt.Errorf("failed to parse program arguments: %w", err)
+	}
+
+	if err := kloader.Load(env.Provider("OC_", ".", func(s string) string {
+		return strings.ReplaceAll(strings.ToLower(
+			strings.TrimPrefix(s, "OC_")), "_", ".")
+	}), nil); err != nil {
+		return nil, fmt.Errorf("error loading environment: %w", err)
+	}
+
+	if err := kloader.Load(posflag.Provider(flagset, ".", kloader), nil); err != nil {
+		return nil, fmt.Errorf("error loading flags: %w", err)
+	}
+
+	conf := &Config{}
+	if err := kloader.Unmarshal("", &conf); err != nil {
+		return nil, fmt.Errorf("error unmarshalling: %w", err)
+	}
+
+	switch conf.Loglevel {
+	case "debug":
+		conf.Debug = true
+	}
+
+	// are there any args left on commandline? if so threat them as adlinks
+	if len(flagset.Args()) > 0 {
+		level, err := strconv.Atoi(flagset.Args()[0])
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse start level: %w", err)
+		}
+
+		conf.Startlevel = level
+	}
+
+	return conf, nil
+
+}