lightsout

package

v1.7.0 Latest Latest Go to latest Published: Mar 6, 2026 License: MIT Imports: 11 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/FelineStateMachine/puzzletea

Links

Open Source Insights

README ¶

Lights Out

Toggle lights in a cross pattern to turn them all off.

Lights Out gameplay

How to Play

The grid starts with some lights on and some off. Toggling a cell flips that cell and its four orthogonal neighbors (up, down, left, right). The goal is to turn every light off.

Controls

Key	Action
Arrow keys / WASD / hjkl	Move cursor
`Enter` / `Space`	Toggle light
`Ctrl+R`	Reset puzzle
`Ctrl+H`	Toggle full help
`Ctrl+E`	Toggle debug overlay
`Ctrl+N`	Return to main menu

Modes

Mode	Grid	Description
Easy	3x3	Small grid
Medium	5x5	Classic size
Hard	7x7	Large grid
Extreme	9x9	Maximum size

Quick Start

puzzletea new lights-out easy
puzzletea new lights-out medium
puzzletea new lights-out extreme

Documentation ¶

Overview ¶

Package lightsout implements the lights out toggle puzzle game.

Index ¶

Variables
func Generate(w, h int) [][]bool
func GenerateSeeded(w, h int, rng *rand.Rand) [][]bool
func IsSolved(grid [][]bool) bool
func Toggle(grid [][]bool, x, y int)
type KeyMap
type Mode
- func NewMode(title, desc string, w, h int) Mode
- func (m Mode) Spawn() (game.Gamer, error)
- func (m Mode) SpawnSeeded(rng *rand.Rand) (game.Gamer, error)
type Model
type Save

Constants ¶

This section is empty.

Variables ¶

View Source

var DailyModes = []list.Item{
	Modes[1],
	Modes[2],
}

View Source

var DefaultKeyMap = KeyMap{
	CursorKeyMap: game.DefaultCursorKeyMap,

	Toggle: key.NewBinding(
		key.WithKeys("enter", "space"),
		key.WithHelp("enter/space", "Toggle"),
	),
}

View Source

var Definition = game.Definition{
	Name:        "Lights Out",
	Description: "Turn off all the lights.",
	Aliases:     []string{"lights"},
	Modes:       Modes,
	DailyModes:  DailyModes,
	Help:        HelpContent,
	Import:      func(data []byte) (game.Gamer, error) { return ImportModel(data) },
}

View Source

var HelpContent string

View Source

var Modes = []list.Item{
	NewMode("Easy", "3x3 grid", 3, 3),
	NewMode("Medium", "5x5 grid", 5, 5),
	NewMode("Hard", "7x7 grid", 7, 7),
	NewMode("Extreme", "9x9 grid", 9, 9),
}

Functions ¶

func Generate ¶

func Generate(w, h int) [][]bool

Generate creates a new w x h grid with a solvable puzzle. It starts with all lights off and applies random toggles.

func GenerateSeeded ¶ added in v1.3.0

func GenerateSeeded(w, h int, rng *rand.Rand) [][]bool

func IsSolved ¶

func IsSolved(grid [][]bool) bool

func Toggle ¶

func Toggle(grid [][]bool, x, y int)

Toggle switches the state of the cell at (x,y) and its immediate neighbors. It assumes grid is rectangular.

Types ¶

type KeyMap ¶

type KeyMap struct {
	game.CursorKeyMap
	Toggle key.Binding
}

type Mode ¶

type Mode struct {
	game.BaseMode
	Width, Height int
}

func NewMode ¶

func NewMode(title, desc string, w, h int) Mode

func (Mode) Spawn ¶

func (m Mode) Spawn() (game.Gamer, error)

func (Mode) SpawnSeeded ¶ added in v1.3.0

func (m Mode) SpawnSeeded(rng *rand.Rand) (game.Gamer, error)

type Model ¶

type Model struct {
	// contains filtered or unexported fields
}

func ImportModel ¶

func ImportModel(data []byte) (*Model, error)

func New ¶

func New(w, h int) (Model, error)

func NewSeeded ¶ added in v1.3.0

func NewSeeded(w, h int, rng *rand.Rand) (Model, error)

func (Model) GetDebugInfo ¶

func (m Model) GetDebugInfo() string

func (Model) GetFullHelp ¶

func (m Model) GetFullHelp() [][]key.Binding

func (Model) GetSave ¶

func (m Model) GetSave() ([]byte, error)

func (Model) Init ¶

func (m Model) Init() tea.Cmd

func (Model) IsSolved ¶

func (m Model) IsSolved() bool

func (Model) Reset ¶ added in v1.3.0

func (m Model) Reset() game.Gamer

func (Model) SetTitle ¶

func (m Model) SetTitle(t string) game.Gamer

func (Model) Update ¶

func (m Model) Update(msg tea.Msg) (game.Gamer, tea.Cmd)

func (Model) View ¶

func (m Model) View() string

type Save ¶

type Save struct {
	Grid        [][]bool `json:"grid"`
	InitialGrid [][]bool `json:"initial_grid,omitempty"`
	CursorX     int      `json:"cx"`
	CursorY     int      `json:"cy"`
	ModeTitle   string   `json:"mode_title"`
}

Source Files ¶

View all Source files

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