PORT: Ported capyclick to web

6 months ago · 7a14f4eedb
3 changed files with 44 additions and 15 deletions
--- a/25
+++ b/25
@ -1,14 +1,25 @@
 game:=capyclick
-bin:=bin
+desktopBin:=bin/desktop
+webBin:=bin/web
+wasmHtml:=build/capyclick.html
+wasmExec:=$(shell go env GOROOT)

-all: clean
-	mkdir -p bin
-	cd src && go build && mv $(game)* ../bin
+current: clean environment
+	cd src && go build && mv $(game)* ../$(desktopBin)

-cross: clean
-	mkdir -p bin
-	cd src && GOOS=windows GOARCH=amd64 go build && mv $(game)* ../bin
+web: environment
+	cd src && env GOOS=js GOARCH=wasm go build -o $(game).wasm . && mv $(game).wasm ../$(webBin)
+	cp $(wasmHtml) $(webBin)
+	cp $(wasmExec)/misc/wasm/wasm_exec.js $(webBin)

+desktop: clean environment
+	cd src && GOOS=windows GOARCH=amd64 go build && mv $(game)* ../$(desktopBin)
+	cd src && GOOS=linux GOARCH=amd64 go build && mv $(game)* ../$(desktopBin)
+
+cross: clean environment web desktop
+
+environment:
+	mkdir -p $(desktopBin) $(webBin)

 clean:
 	rm -rf bin
--- a/build/capyclick.html
+++ b/build/capyclick.html
@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<script src="wasm_exec.js"></script>
+
+<script>
+if (!WebAssembly.instantiateStreaming) {
+    WebAssembly.instantiateStreaming = async (resp, importObject) => {
+        const source = await (await resp).arrayBuffer();
+        return await WebAssembly.instantiate(source, importObject);
+    };
+}
+
+const go = new Go();
+WebAssembly.instantiateStreaming(fetch("capyclick.wasm"), go.importObject).then(result => {
+    go.run(result.instance);
+});
+</script>
--- a/src/main.go
+++ b/src/main.go
@ -27,7 +27,7 @@ const Version string = "v0.1"
 var (
 	silent    *bool = flag.Bool("silent", false, "Set to true in order to discard all logging")
 	version   *bool = flag.Bool("version", false, "Prints version information")
-	noFiles *bool = flag.Bool("no-files", false, "Run the game without outputting/reading configuration or save files")
+	saveFiles *bool = flag.Bool("saveFiles", false, "Run the game with configuration and save files")
 )

 const (
@ -316,7 +316,7 @@ func main() {
 	// Create a game instance
 	var game *Game = NewGame()

-	if !*noFiles {
+	if *saveFiles {
 		// Work out working directory
 		exeDir, err := os.Executable()
 		if err != nil {
@ -328,7 +328,7 @@ func main() {
 		game.WorkingDir = ""
 	}

-	if !*noFiles {
+	if *saveFiles {
 		// Open/Create configuration file
 		var config *conf.Configuration
 		config, err := conf.FromFile(filepath.Join(game.WorkingDir, ConfigurationFileName))
@ -361,7 +361,7 @@ func main() {
 	ebiten.SetWindowPosition(game.Config.LastWindowPosition[0], game.Config.LastWindowPosition[1])
 	ebiten.SetWindowTitle(fmt.Sprintf("Capyclick %s", Version))

-	if !*noFiles {
+	if *saveFiles {
 		// Open/Create save file
 		gameSave, err := save.FromFile(filepath.Join(game.WorkingDir, SaveFileName))
 		if err != nil {
@ -390,7 +390,9 @@ func main() {
 	err := ebiten.RunGame(game)
 	if err == ebiten.Termination || err == nil {
 		logger.Info("[Main] Shutting down!")
+		if *saveFiles {
 			game.SaveData()
+		}
 		os.Exit(0)
 	} else {
 		logger.Error("[Main] Fatal game error: %s", err)