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feat: add configurable speed and expanded grid presets for snake

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- Add per-game speed setting with presets (Slow/Normal/Fast/Insane)
- Add speed selector UI in snake lobby
- Expand grid presets with Tiny (15x15) and XL (50x30)
- Auto-calculate cell size based on grid dimensions
- Preserve speed setting in rematch games
This commit is contained in:
Ryan Hamamura
2026-02-04 10:02:40 -10:00
parent f454e0d220
commit e239e948ae
13 changed files with 199 additions and 69 deletions
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56
snake/store.go
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@@ -47,7 +47,10 @@ func (ss *SnakeStore) makeNotify(gameID string) func() {
}
}
func (ss *SnakeStore) Create(width, height int, mode GameMode) *SnakeGameInstance {
func (ss *SnakeStore) Create(width, height int, mode GameMode, speed int) *SnakeGameInstance {
if speed <= 0 {
speed = DefaultSpeed
}
id := generateID(4)
sg := &SnakeGame{
ID: id,
@@ -58,6 +61,7 @@ func (ss *SnakeStore) Create(width, height int, mode GameMode) *SnakeGameInstanc
Players: make([]*Player, 8),
Status: StatusWaitingForPlayers,
Mode: mode,
Speed: speed,
}
si := &SnakeGameInstance{
game: sg,
@@ -158,14 +162,14 @@ func (ss *SnakeStore) ActiveGames() []*SnakeGame {
}
type SnakeGameInstance struct {
game *SnakeGame
gameMu sync.RWMutex
pendingDir [8]*Direction
notify func()
persister Persister
store *SnakeStore
stopCh chan struct{}
loopOnce sync.Once
game *SnakeGame
gameMu sync.RWMutex
pendingDirQueue [8][]Direction // queued directions per slot (max 3)
notify func()
persister Persister
store *SnakeStore
stopCh chan struct{}
loopOnce sync.Once
}
func (si *SnakeGameInstance) ID() string {
@@ -231,8 +235,8 @@ func (si *SnakeGameInstance) Join(player *Player) bool {
return true
}
// SetDirection buffers a direction change for the given slot.
// The write happens under the game lock to avoid a data race with the game loop.
// SetDirection queues a direction change for the given slot.
// Validates against the last queued direction (or current snake dir) to prevent 180° turns.
func (si *SnakeGameInstance) SetDirection(slot int, dir Direction) {
if slot < 0 || slot >= 8 {
return
@@ -240,13 +244,28 @@ func (si *SnakeGameInstance) SetDirection(slot int, dir Direction) {
si.gameMu.Lock()
defer si.gameMu.Unlock()
if si.game.State != nil && slot < len(si.game.State.Snakes) {
s := si.game.State.Snakes[slot]
if s != nil && s.Alive && !ValidateDirection(s.Dir, dir) {
return
}
if si.game.State == nil || slot >= len(si.game.State.Snakes) {
return
}
si.pendingDir[slot] = &dir
s := si.game.State.Snakes[slot]
if s == nil || !s.Alive {
return
}
// Validate against last queued direction, or current snake direction if queue empty
refDir := s.Dir
if len(si.pendingDirQueue[slot]) > 0 {
refDir = si.pendingDirQueue[slot][len(si.pendingDirQueue[slot])-1]
}
if !ValidateDirection(refDir, dir) {
return
}
// Cap queue at 3 to prevent unbounded growth
if len(si.pendingDirQueue[slot]) >= 3 {
return
}
si.pendingDirQueue[slot] = append(si.pendingDirQueue[slot], dir)
}
func (si *SnakeGameInstance) Stop() {
@@ -272,9 +291,10 @@ func (si *SnakeGameInstance) CreateRematch() *SnakeGameInstance {
width := si.game.State.Width
height := si.game.State.Height
mode := si.game.Mode
speed := si.game.Speed
si.gameMu.Unlock()
newSI := si.store.Create(width, height, mode)
newSI := si.store.Create(width, height, mode, speed)
newID := newSI.ID()
si.gameMu.Lock()