package main import ( "bytes" "errors" "fmt" "image" "image/gif" "image/png" "log" "os" "os/exec" "runtime" "runtime/pprof" "strconv" "sync" "github.com/OpenDiablo2/OpenDiablo2/d2script" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2screen" "github.com/OpenDiablo2/OpenDiablo2/d2game/d2gamescreen" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2inventory" "gopkg.in/alecthomas/kingpin.v2" "github.com/OpenDiablo2/OpenDiablo2/d2common" "github.com/OpenDiablo2/OpenDiablo2/d2common/d2data" "github.com/OpenDiablo2/OpenDiablo2/d2common/d2data/d2datadict" "github.com/OpenDiablo2/OpenDiablo2/d2common/d2resource" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2asset" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2audio" ebiten2 "github.com/OpenDiablo2/OpenDiablo2/d2core/d2audio/ebiten" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2config" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2gui" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2input" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2render" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2render/ebiten" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2term" "github.com/OpenDiablo2/OpenDiablo2/d2core/d2ui" ) // GitBranch is set by the CI build process to the name of the branch var GitBranch string // GitCommit is set by the CI build process to the commit hash var GitCommit string type captureState int const ( captureStateNone captureState = iota captureStateFrame captureStateGif ) var singleton struct { lastTime float64 showFPS bool timeScale float64 captureState captureState capturePath string captureFrames []*image.RGBA } func main() { if len(GitBranch) == 0 { GitBranch = "Local Build" } d2common.SetBuildInfo(GitBranch, GitCommit) region := kingpin.Arg("region", "Region type id").Int() preset := kingpin.Arg("preset", "Level preset").Int() kingpin.Parse() log.SetFlags(log.Lshortfile) log.Println("OpenDiablo2 - Open source Diablo 2 engine") if err := initialize(); err != nil { log.Fatal(err) } if *region == 0 { d2screen.SetNextScreen(d2gamescreen.CreateMainMenu()) } else { d2screen.SetNextScreen(d2gamescreen.CreateMapEngineTest(*region, *preset)) } windowTitle := fmt.Sprintf("OpenDiablo2 (%s)", GitBranch) if err := d2render.Run(update, 800, 600, windowTitle); err != nil { log.Fatal(err) } } func initialize() error { singleton.timeScale = 1.0 singleton.lastTime = d2common.Now() if err := d2config.Load(); err != nil { return err } config := d2config.Get() d2resource.LanguageCode = config.Language renderer, err := ebiten.CreateRenderer() if err != nil { return err } if err := d2render.Initialize(renderer); err != nil { return err } d2render.SetWindowIcon("d2logo.png") if err := d2term.Initialize(); err != nil { return err } d2term.BindLogger() d2term.BindAction("dumpheap", "dumps the heap to heap.out", func() { fileOut, _ := os.Create("heap.out") pprof.WriteHeapProfile(fileOut) fileOut.Close() exec.Command("go", "tool", "pprof", "--pdf", "./OpenDiablo2", "./heap.out", ">", "./memprofile.pdf") }) d2term.BindAction("fullscreen", "toggles fullscreen", func() { fullscreen := !d2render.IsFullScreen() d2render.SetFullScreen(fullscreen) d2term.OutputInfo("fullscreen is now: %v", fullscreen) }) d2term.BindAction("capframe", "captures a still frame", func(path string) { singleton.captureState = captureStateFrame singleton.capturePath = path singleton.captureFrames = nil }) d2term.BindAction("capgifstart", "captures an animation (start)", func(path string) { singleton.captureState = captureStateGif singleton.capturePath = path singleton.captureFrames = nil }) d2term.BindAction("capgifstop", "captures an animation (stop)", func() { singleton.captureState = captureStateNone }) d2term.BindAction("vsync", "toggles vsync", func() { vsync := !d2render.GetVSyncEnabled() d2render.SetVSyncEnabled(vsync) d2term.OutputInfo("vsync is now: %v", vsync) }) d2term.BindAction("fps", "toggle fps counter", func() { singleton.showFPS = !singleton.showFPS d2term.OutputInfo("fps counter is now: %v", singleton.showFPS) }) d2term.BindAction("timescale", "set scalar for elapsed time", func(timeScale float64) { if timeScale <= 0 { d2term.OutputError("invalid time scale value") } else { d2term.OutputInfo("timescale changed from %f to %f", singleton.timeScale, timeScale) singleton.timeScale = timeScale } }) d2term.BindAction("quit", "exits the game", func() { os.Exit(0) }) d2term.BindAction("screen-gui", "enters the gui playground screen", func() { d2screen.SetNextScreen(d2gamescreen.CreateGuiTestMain()) }) if err := d2asset.Initialize(); err != nil { return err } if err := d2gui.Initialize(); err != nil { return err } audioProvider, err := ebiten2.CreateAudio() if err != nil { return err } if err := d2audio.Initialize(audioProvider); err != nil { return err } d2audio.SetVolumes(config.BgmVolume, config.SfxVolume) if err := loadDataDict(); err != nil { return err } if err := loadStrings(); err != nil { return err } d2inventory.LoadHeroObjects() d2ui.Initialize() d2script.CreateScriptEngine() return nil } func update(target d2render.Surface) error { currentTime := d2common.Now() elapsedTime := (currentTime - singleton.lastTime) * singleton.timeScale singleton.lastTime = currentTime if err := advance(elapsedTime); err != nil { return err } if err := render(target); err != nil { return err } if target.GetDepth() > 0 { return errors.New("detected surface stack leak") } return nil } func advance(elapsed float64) error { if err := d2screen.Advance(elapsed); err != nil { return err } d2ui.Advance(elapsed) if err := d2input.Advance(elapsed); err != nil { return err } if err := d2gui.Advance(elapsed); err != nil { return err } if err := d2term.Advance(elapsed); err != nil { return err } return nil } func render(target d2render.Surface) error { if err := d2screen.Render(target); err != nil { return err } d2ui.Render(target) if err := d2gui.Render(target); err != nil { return err } if err := renderDebug(target); err != nil { return err } if err := renderCapture(target); err != nil { return err } if err := d2term.Render(target); err != nil { return err } return nil } func renderCapture(target d2render.Surface) error { cleanupCapture := func() { singleton.captureState = captureStateNone singleton.capturePath = "" singleton.captureFrames = nil } switch singleton.captureState { case captureStateFrame: defer cleanupCapture() fp, err := os.Create(singleton.capturePath) if err != nil { return err } defer fp.Close() screenshot := target.Screenshot() if err := png.Encode(fp, screenshot); err != nil { return err } log.Printf("saved frame to %s", singleton.capturePath) break case captureStateGif: screenshot := target.Screenshot() singleton.captureFrames = append(singleton.captureFrames, screenshot) break case captureStateNone: if len(singleton.captureFrames) > 0 { defer cleanupCapture() fp, err := os.Create(singleton.capturePath) if err != nil { return err } defer fp.Close() var ( framesTotal = len(singleton.captureFrames) framesPal = make([]*image.Paletted, framesTotal) frameDelays = make([]int, framesTotal) framesPerCpu = framesTotal / runtime.NumCPU() ) var waitGroup sync.WaitGroup for i := 0; i < framesTotal; i += framesPerCpu { waitGroup.Add(1) go func(start, end int) { defer waitGroup.Done() for j := start; j < end; j++ { var buffer bytes.Buffer if err := gif.Encode(&buffer, singleton.captureFrames[j], nil); err != nil { panic(err) } framePal, err := gif.Decode(&buffer) if err != nil { panic(err) } framesPal[j] = framePal.(*image.Paletted) frameDelays[j] = 5 } }(i, d2common.MinInt(i+framesPerCpu, framesTotal)) } waitGroup.Wait() if err := gif.EncodeAll(fp, &gif.GIF{Image: framesPal, Delay: frameDelays}); err != nil { return err } log.Printf("saved animation to %s", singleton.capturePath) } } return nil } func renderDebug(target d2render.Surface) error { if singleton.showFPS { vsyncEnabled := d2render.GetVSyncEnabled() fps := d2render.CurrentFPS() cx, cy := d2render.GetCursorPos() target.PushTranslation(5, 565) target.DrawText("vsync:" + strconv.FormatBool(vsyncEnabled) + "\nFPS:" + strconv.Itoa(int(fps))) target.Pop() var m runtime.MemStats runtime.ReadMemStats(&m) target.PushTranslation(680, 0) target.DrawText("Alloc " + strconv.FormatInt(int64(m.Alloc)/1024/1024, 10)) target.PushTranslation(0, 16) target.DrawText("Pause " + strconv.FormatInt(int64(m.PauseTotalNs/1024/1024), 10)) target.PushTranslation(0, 16) target.DrawText("HeapSys " + strconv.FormatInt(int64(m.HeapSys/1024/1024), 10)) target.PushTranslation(0, 16) target.DrawText("NumGC " + strconv.FormatInt(int64(m.NumGC), 10)) target.PushTranslation(0, 16) target.DrawText("Coords " + strconv.FormatInt(int64(cx), 10) + "," + strconv.FormatInt(int64(cy), 10)) target.PopN(5) } return nil } func loadDataDict() error { entries := []struct { path string loader func(data []byte) }{ {d2resource.LevelType, d2datadict.LoadLevelTypes}, {d2resource.LevelPreset, d2datadict.LoadLevelPresets}, {d2resource.LevelWarp, d2datadict.LoadLevelWarps}, {d2resource.ObjectType, d2datadict.LoadObjectTypes}, {d2resource.ObjectDetails, d2datadict.LoadObjects}, {d2resource.Weapons, d2datadict.LoadWeapons}, {d2resource.Armor, d2datadict.LoadArmors}, {d2resource.Misc, d2datadict.LoadMiscItems}, {d2resource.UniqueItems, d2datadict.LoadUniqueItems}, {d2resource.Missiles, d2datadict.LoadMissiles}, {d2resource.SoundSettings, d2datadict.LoadSounds}, {d2resource.AnimationData, d2data.LoadAnimationData}, {d2resource.MonStats, d2datadict.LoadMonStats}, {d2resource.MagicPrefix, d2datadict.LoadMagicPrefix}, {d2resource.MagicSuffix, d2datadict.LoadMagicSuffix}, {d2resource.ItemStatCost, d2datadict.LoadItemStatCosts}, {d2resource.CharStats, d2datadict.LoadCharStats}, {d2resource.MonStats, d2datadict.LoadMonStats}, {d2resource.Hireling, d2datadict.LoadHireling}, {d2resource.Experience, d2datadict.LoadExperienceBreakpoints}, {d2resource.Gems, d2datadict.LoadGems}, {d2resource.DifficultyLevels, d2datadict.LoadDifficultyLevels}, {d2resource.AutoMap, d2datadict.LoadAutoMaps}, } for _, entry := range entries { data, err := d2asset.LoadFile(entry.path) if err != nil { return err } entry.loader(data) } return nil } func loadStrings() error { tablePaths := []string{ d2resource.PatchStringTable, d2resource.ExpansionStringTable, d2resource.StringTable, } for _, tablePath := range tablePaths { data, err := d2asset.LoadFile(tablePath) if err != nil { return err } d2common.LoadDictionary(data) } return nil }