initial commit

main.go

@@ -0,0 +1,80 @@
+/*
+Copyright © 2024 Thomas von Dein
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"runtime/debug"
+
+	"log/slog"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/tlinden/yadu"
+)
+
+func main() {
+	// parse config file and command line parameters, if any
+	conf, err := InitConfig()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if conf.Showversion {
+		fmt.Printf("This is kage-viewer version %s\n", VERSION)
+		return
+	}
+
+	//  enable  debugging,  if  needed.   We  only  use  log/slog  for
+	// debugging, so there's no need to configure it outside debugging
+	if conf.Debug {
+		logLevel := &slog.LevelVar{}
+		// we're using a more verbose logger in debug mode
+		buildInfo, _ := debug.ReadBuildInfo()
+		opts := &yadu.Options{
+			Level:     logLevel,
+			AddSource: true,
+		}
+
+		logLevel.Set(slog.LevelDebug)
+
+		handler := yadu.NewHandler(os.Stdout, opts)
+		debuglogger := slog.New(handler).With(
+			slog.Group("program_info",
+				slog.Int("pid", os.Getpid()),
+				slog.String("go_version", buildInfo.GoVersion),
+			),
+		)
+		slog.SetDefault(debuglogger)
+	}
+
+	game := &Game{Conf: conf}
+	if err := game.Init(); err != nil {
+		log.Fatal(err)
+	}
+
+	ebiten.SetWindowSize(game.Conf.Width, game.Conf.Height)
+	ebiten.SetWindowTitle("Kage shader viewer")
+	ebiten.SetWindowResizable(true)
+
+	if err := ebiten.RunGame(game); err != nil {
+		log.Fatal(err)
+	}
+
+}