Merge pull request #2 from iliadenisov/refactor-and-add-docs

Refactor and add description

LICENSE.md

@@ -0,0 +1,21 @@
+# MIT License
+
+Copyright (c) 2025 Ilia Denisov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,5 +1,44 @@
 # 15 Puzzle game with Go
 
+🚀 [Play in Telegram](https://t.me/puzzle_15_bot?startapp).
+Game has [simple rules](https://en.wikipedia.org/wiki/15_puzzle).
+
+## Description
+
+The intentions of the project is to create a simple proof-of-concept demonstrating that a [Telegram Mini App](https://core.telegram.org/bots/webapps) can be developed with Go and [WebAssembly](https://go.dev/wiki/WebAssembly).
+
+✨ Graphics are made with [Ebitengine](https://github.com/hajimehoshi/ebiten).
+
+Basic "features" include: a splash screen, game move sound, a switchable silent mode without moves count,
+a players' rating table, a congratulations screen for achieving 1st place,
+a pin-code protected game statistics screen,
+and backend API requests secured through [data validation](https://core.telegram.org/bots/webapps#validating-data-received-via-the-mini-app).
+
+## Running game
+
+Local gameplay can be initiated using the following command:
+
+```shell
+go run ./cmd/ui
+```
+
+A fully functional Mini App requires a web server.
+You can use [`Dockerfile`](Dockerfile) to build a Docker Image
+containing all necessary artifacts: the server binary, the WebAssemply (wasm) binary, and html page.
+Certain environment variables should be set for the server to start:
+
+| Env                | Description |
+| -                  | -           |
+| **`BOT_TOKEN`**    | Telegram Bot [API Token](https://core.telegram.org/bots/tutorial). |
+| **`DATA_FILE`**    | Path to the file where games data will be stored. |
+| **`ACCESS_CODE`**  | Pin-code to access the Statistics Screen. |
+| **`PROJECT_LINK`** | URL to the project's source code. |
+| `SERVER_PORT`      | Port for the server to listen for API requests, defaulting to `8080` if not set. |
+| `CONTEXT_ROOT`     | Server requests URI root path, defaulting to `/` if not set. |
+| `STATIC_DIR`       | Directory where static files are located, defaulting to the current directory if not set. |
+
 ## Credits
 
-- [Gopher by gheimifurt](https://www.reddit.com/r/golang/comments/xdxb9a/gopher_ascii_art_for_bashrc/).
+- [Ebitengine](https://github.com/hajimehoshi/ebiten) game engine by Hajime Hoshi.
+- Font by [VileR](http://int10h.org) and [fly_indiz](http://old-dos.ru/index.php?page=files&mode=files&do=show&id=102798).
+- ASCII Gopher by [gheimifurt](https://www.reddit.com/r/golang/comments/xdxb9a/gopher_ascii_art_for_bashrc/).

internal/puzzle/assets/fonts/README.md

@@ -2,5 +2,5 @@
 
 Credits:
 
-- [VileR](http://int10h.org/).
+- [VileR](http://int10h.org).
 - [fly_indiz](http://old-dos.ru/index.php?page=files&mode=files&do=show&id=102798).

internal/puzzle/controller.go

@@ -139,11 +139,11 @@ func Init(init ...func(*Controller)) error {
 		init[i](c)
 	}
 	c.screens[screenGame] = newGame(c.OnGameStart, c.OnGameSolve, c.UserStatsRequest)
-	c.screens[screenForm] = newForm(c.MonitoringRequest)
+	c.screens[screenForm] = newStats(c.MonitoringRequest)
 	c.screens[screenSplash] = newSplash(c.UrlOpener)
 	c.screens[screenDebug], c.debugFn = newDebugOverlay()
 
-	c.SetLangCode(langCodeRu)
+	c.SetLangCode(langCodeEn)
 
 	return ebiten.RunGame(c)
 }

internal/puzzle/stats.go

@@ -15,7 +15,7 @@ const (
 	codeInputTemplate = `[%s] [%s] [%s] [%s]`
 )
 
-type form struct {
+type stats struct {
 	dials       [dials]*button
 	request     func(string)
 	requestSent bool
@@ -34,10 +34,10 @@ func codeBox(b byte) string {
 	return "_"
 }
 
-func newForm(request func(string)) *form {
+func newStats(request func(string)) *stats {
 	col := func(i int) int { return (i%3)*puzzleTileSymW + 5 }
 	row := func(i int) int { return (i/3)*puzzleTileSymH + 3 }
-	f := &form{request: request}
+	f := &stats{request: request}
 	for i := 1; i < dials; i++ {
 		f.dials[i] = NewButton(stringFn(strconv.Itoa(i)), intFn(col(i-1)), intFn(row(i-1)))
 	}
@@ -45,20 +45,20 @@ func newForm(request func(string)) *form {
 	return f
 }
 
-func (f *form) ApiMonitoringHandler(m model.Monitoring) {
+func (st *stats) ApiMonitoringHandler(m model.Monitoring) {
-	f.mon.Store(m)
+	st.mon.Store(m)
-	f.authFail = false
+	st.authFail = false
 }
 
-func (f *form) Tick(t ticker) {
+func (st *stats) Tick(t ticker) {
-	if t == ticker1Hz && f.requestSent {
+	if t == ticker1Hz && st.requestSent {
-		f.authFail = f.mon.Load() == nil
+		st.authFail = st.mon.Load() == nil
 	}
 }
 
-func (f *form) Draw(s Screen) {
+func (st *stats) Draw(s Screen) {
 	drawGameField(s)
-	if v := f.mon.Load(); v != nil {
+	if v := st.mon.Load(); v != nil {
 		m := v.(model.Monitoring)
 		printHeader(s, "Usage Statistics", 0)
 		s.Print(fmt.Sprintf("Players: %d\nGames: %d\nSolved: %d", m.Users, m.GamesStarted, m.GamesSolved),
@@ -66,30 +66,30 @@ func (f *form) Draw(s Screen) {
 			color.RGBA{0, 0xFF, 0xFF, 0xFF})
 	} else {
 		r := image.Rect(8, 1, len(codeInputTemplate)+4, 2)
-		if f.authFail {
+		if st.authFail {
 			s.Fill(r, color.RGBA{0xFF, 0, 0, 0xFF})
-		} else if f.idx == len(f.input) {
+		} else if st.idx == len(st.input) {
 			s.Fill(r, color.RGBA{0x80, 0x80, 0x80, 0xFF})
 		}
-		printHeader(s, fmt.Sprintf(codeInputTemplate, codeBox(f.input[0]), codeBox(f.input[1]), codeBox(f.input[2]), codeBox(f.input[3])), 0)
+		printHeader(s, fmt.Sprintf(codeInputTemplate, codeBox(st.input[0]), codeBox(st.input[1]), codeBox(st.input[2]), codeBox(st.input[3])), 0)
-		for i := range f.dials {
+		for i := range st.dials {
-			f.dials[i].Draw(s)
+			st.dials[i].Draw(s)
 		}
 	}
 }
 
-func (f *form) Interact(a Audio, col, row int, t time.Duration) actionResult {
+func (st *stats) Interact(a Audio, col, row int, t time.Duration) actionResult {
 	if (image.Point{col, row}).In(image.Rect(2, 1, puzzleSymX-2, 2)) {
-		f.input = [4]byte{}
+		st.input = [4]byte{}
-		f.authFail = false
+		st.authFail = false
-		f.requestSent = false
+		st.requestSent = false
-		f.idx = 0
+		st.idx = 0
 		return resultSwitchGame
 	}
-	if f.mon.Load() == nil {
+	if st.mon.Load() == nil {
-		for i := range f.dials {
+		for i := range st.dials {
-			if f.dials[i].Interact(col, row) {
+			if st.dials[i].Interact(col, row) {
-				f.pressNextButton('0' + byte(i))
+				st.pressNextButton('0' + byte(i))
 				break
 			}
 		}
@@ -97,17 +97,17 @@ func (f *form) Interact(a Audio, col, row int, t time.Duration) actionResult {
 	return resultNone
 }
 
-func (f *form) pressNextButton(digit byte) {
+func (st *stats) pressNextButton(digit byte) {
-	if f.idx >= len(f.input) {
+	if st.idx >= len(st.input) {
 		return
 	}
-	f.input[f.idx] = digit
+	st.input[st.idx] = digit
-	f.idx++
+	st.idx++
-	if f.idx == len(f.input) {
+	if st.idx == len(st.input) {
-		f.request(string(f.input[:]))
+		st.request(string(st.input[:]))
-		f.requestSent = true
+		st.requestSent = true
 	}
 }
 
-func (f *form) Activate()        {}
+func (st *stats) Activate()        {}
-func (f *form) SetLang(langCode) {}
+func (st *stats) SetLang(langCode) {}

internal/tgbot/tgbot.go

@@ -2,7 +2,6 @@ package tgbot
 
 import (
 	"context"
-	"fmt"
 	"log/slog"
 
 	"github.com/go-telegram/bot"
@@ -38,8 +37,4 @@ func (b *tgBot) Start() {
 	go b.b.Start(b.ctx)
 }
 
-func (b *tgBot) updateHandler(ctx context.Context, _ *bot.Bot, update *models.Update) {
+func (b *tgBot) updateHandler(ctx context.Context, _ *bot.Bot, _ *models.Update) {}
-	if update != nil {
-		b.log.Info(fmt.Sprintf("update:\n%#v\n", *update))
-	}
-}