Rename constructor to game.New(game.Params) per styleguide

NewGame(Config) becomes New(Params), and Restore takes Params too, so
the package's primary type gets the canonical New() constructor with a
named-field Params struct (styleguide points 139, 159). cmd/rogue and
all tests updated; ARCHITECTURE.md constructor references corrected.
Pure rename, suite green.

ARCHITECTURE.md

@@ -1076,7 +1076,7 @@ that `game` itself has no third-party imports:
 go.mod                        module git.eeqj.de/sneak/rgoue
 cmd/rogue/main.go             package main — flag parsing, constructs RogueGame, calls Run
 game/                         package game — the port, one .go file per .c file
-    game.go                   RogueGame struct, NewGame, Run  (main.c)
+    game.go                   RogueGame struct, New, Run      (main.c)
     rng.go                    seeded LCG                      (main.c: rnd/roll + RN macro)
     types.go                  Coord, Stats, flags, constants  (rogue.h)
     object.go                 Object type                     (rogue.h THING _o arm)
@@ -1120,7 +1120,7 @@ coherent, but everything is reachable from `g`.
 
 ```go
 // RogueGame is one complete game of Rogue: all state that was global in the
-// C implementation, plus the terminal it plays on. Construct with NewGame,
+// C implementation, plus the terminal it plays on. Construct with New,
 // then call Run.
 type RogueGame struct {
     // --- identity / RNG ---
@@ -1193,15 +1193,15 @@ The command.c/io.c/things.c file-statics become lowercase fields of `RogueGame`,
 ### Entrypoints
 
 ```go
-func NewGame(opts Config) *RogueGame   // Config: seed, name, ROGUEOPTS string, score path, wizard
+func New(params Params) *RogueGame      // Params: seed, name, ROGUEOPTS string, score path, wizard
 func (g *RogueGame) Run() error         // main.c main()+playit(): init tables, first level, daemons, loop
 func (g *RogueGame) command()           // one turn (command.c)
-func Restore(path string, opts Config) (*RogueGame, error)  // save.c restore()
+func Restore(path string, params Params) (*RogueGame, error)  // save.c restore()
 ```
 
 `cmd/rogue/main.go` is a thin shell: flags (`-s` scores, `-d` death demo,
-save-file arg, `SEED`/`ROGUEOPTS` env), `NewGame(...)` or `Restore(...)`,
-`Run()`, exit code.
+save-file arg, `SEED`/`ROGUEOPTS` env), `New(...)` or `Restore(...)`, `Run()`,
+exit code.
 
 ## 4. Core types
 
@@ -1366,7 +1366,7 @@ type Room struct {
 tables that are never written after init** (the only permitted package-level
 data — they are ROM, not state): `monsterTable [26]MonsterKind` (name, carry %,
 flags, stats), `initDam` weapon table, base `objInfo` tables (copied into
-`RogueGame.Items` at NewGame so per-game mutation — probability resumming,
+`RogueGame.Items` at New so per-game mutation — probability resumming,
 `oi_know`, `oi_guess` — stays instance-local), `eLevels`, `rainbow`, `stones`,
 `woods`, `metals`, `sylls`, trap names, help text, `lvlMons`/`wandMons` spawn
 strings, `hNames`/`mNames` combat messages.
@@ -1634,6 +1634,6 @@ defers.
 - **Determinism test:** scripted input sequence against a fixed seed must
   produce identical final state across runs (guards hidden nondeterminism — map
   iteration, time dependence).
-- **Save round-trip:** NewGame → play N scripted turns → save → restore →
-  compare full state.
+- **Save round-trip:** New → play N scripted turns → save → restore → compare
+  full state.
 - `go vet` + `gofmt` clean at every commit.

cmd/rogue/main.go

@@ -29,10 +29,10 @@ func run() int {
 
 	flag.Parse()
 
-	cfg := loadConfig()
+	params := loadParams()
 
 	if *scores {
-		game.NewGame(cfg).ShowScores()
+		game.New(params).ShowScores()
 
 		return 0
 	}
@@ -45,13 +45,13 @@ func run() int {
 	}
 	defer t.Fini()
 
-	cfg.Term = t
+	params.Term = t
 
 	var g *game.RogueGame
 
 	if args := flag.Args(); len(args) == 1 && !*deathDemo {
 		// restore a saved game
-		g, err = game.Restore(args[0], cfg)
+		g, err = game.Restore(args[0], params)
 		if err != nil {
 			t.Fini()
 			fmt.Fprintln(os.Stderr, err)
@@ -59,7 +59,7 @@ func run() int {
 			return 1
 		}
 	} else {
-		g = game.NewGame(cfg)
+		g = game.New(params)
 	}
 
 	if *deathDemo {
@@ -81,10 +81,10 @@ func run() int {
 	return 0
 }
 
-// loadConfig gathers the game configuration from the environment: home
+// loadParams gathers the game parameters from the environment: home
 // directory, ROGUEOPTS, user name, wizard mode, and the dungeon seed
 // (main.c's startup).
-func loadConfig() game.Config {
+func loadParams() game.Params {
 	home, _ := os.UserHomeDir()
 
 	name := ""
@@ -96,7 +96,7 @@ func loadConfig() game.Config {
 
 	wizard := os.Getenv("ROGUE_WIZARD") != ""
 
-	return game.Config{
+	return game.Params{
 		Seed:      chooseSeed(wizard),
 		Name:      name,
 		RogueOpts: os.Getenv("ROGUEOPTS"),

game/effects_test.go

@@ -7,7 +7,7 @@ import "testing"
 func mkGameInput(t *testing.T) *RogueGame {
 	t.Helper()
 
-	g := NewGame(Config{Seed: 5, Term: &testTerm{}})
+	g := New(Params{Seed: 5, Term: &testTerm{}})
 	g.NewLevel()
 	g.Oldpos = g.Player.Pos
 	g.Oldrp = g.roomIn(g.Player.Pos)
@@ -183,7 +183,7 @@ func TestZapSlowMonster(t *testing.T) {
 }
 
 func TestParseOpts(t *testing.T) {
-	g := NewGame(Config{Seed: 1})
+	g := New(Params{Seed: 1})
 	g.ParseOpts("terse,nojump,name=Conan,fruit=mango,inven=slow")
 
 	if !g.Options.Terse {

game/fight_test.go

@@ -7,7 +7,7 @@ import "testing"
 func mkGame(t *testing.T, seed int32) *RogueGame {
 	t.Helper()
 
-	g := NewGame(Config{Seed: seed, Term: &testTerm{}})
+	g := New(Params{Seed: seed, Term: &testTerm{}})
 	g.NewLevel()
 	g.Oldpos = g.Player.Pos
 	g.Oldrp = g.roomIn(g.Player.Pos)

game/game.go

@@ -31,9 +31,9 @@ type Options struct {
 	InvType    int  // inven: inventory style (InvOver/InvSlow/InvClear)
 }
 
-// Config carries everything needed to construct a game.
-type Config struct {
-	Seed      int32    // dungeon number; the caller derives it (time+pid or SEED env)
+// Params carries everything needed to construct a game.
+type Params struct {
+	Seed      int32    // dungeon number; caller derives it (time+pid or SEED)
 	Name      string   // player name (overridden by ROGUEOPTS name=)
 	RogueOpts string   // the ROGUEOPTS environment string
 	Home      string   // home directory (save file default location)
@@ -44,7 +44,7 @@ type Config struct {
 
 // RogueGame is one complete game of Rogue: every piece of state that was a
 // global (or file-scope static) in the C sources, plus the terminal it is
-// played on. Construct with NewGame, then call Run.
+// played on. Construct with New, then call Run.
 //
 // The struct grows with the port; fields appear in the phase that ports the
 // code owning them.
@@ -143,22 +143,22 @@ type RogueGame struct {
 	data *gameData
 }
 
-// NewGame builds a game from cfg, seeds the RNG, and randomizes the item
+// New builds a game from params, seeds the RNG, and randomizes the item
 // appearance tables (the front half of main.c main(); the player roll-up
 // and first level arrive with later porting phases).
-func NewGame(cfg Config) *RogueGame {
+func New(params Params) *RogueGame {
 	g := &RogueGame{
 		data:      newGameData(),
-		Rng:       &Rng{Seed: cfg.Seed},
-		Dnum:      int(cfg.Seed),
-		Whoami:    cfg.Name,
+		Rng:       &Rng{Seed: params.Seed},
+		Dnum:      int(params.Seed),
+		Whoami:    params.Name,
 		Fruit:     "slime-mold",
-		Home:      cfg.Home,
-		Wizard:    cfg.Wizard,
-		NoScore:   cfg.Wizard,
+		Home:      params.Home,
+		Wizard:    params.Wizard,
+		NoScore:   params.Wizard,
 		Playing:   true,
 		Depth:     1,
-		ScorePath: cfg.ScorePath,
+		ScorePath: params.ScorePath,
 		LastScore: -1,
 	}
 	g.Options = Options{
@@ -168,17 +168,17 @@ func NewGame(cfg Config) *RogueGame {
 	}
 	g.InvDescribe = true
 	g.Msgs.SaveMsg = true
-	g.scr = NewScreen(cfg.Term)
+	g.scr = NewScreen(params.Term)
 	g.Msgs.attach(g.scr, g.look, g.readchar)
-	g.FileName = cfg.Home + "/rogue.save"
+	g.FileName = params.Home + "/rogue.save"
 
-	g.rogueOpts = cfg.RogueOpts
-	if cfg.Wizard {
+	g.rogueOpts = params.RogueOpts
+	if params.Wizard {
 		g.Player.Flags.Set(SenseMonsters)
 	}
 
-	if cfg.RogueOpts != "" {
-		g.ParseOpts(cfg.RogueOpts)
+	if params.RogueOpts != "" {
+		g.ParseOpts(params.RogueOpts)
 	}
 
 	g.Monsters = g.data.monsterTable

game/newlevel_test.go

@@ -8,7 +8,7 @@ import (
 func genLevel(t *testing.T, seed int32) *RogueGame {
 	t.Helper()
 
-	g := NewGame(Config{Seed: seed})
+	g := New(Params{Seed: seed})
 	g.NewLevel()
 
 	return g
@@ -159,7 +159,7 @@ func TestNewLevelDeterministic(t *testing.T) {
 // mazes, dark rooms, traps, treasure rooms — as a crash/invariant sweep.
 func TestDeeperLevels(t *testing.T) {
 	for _, seed := range []int32{7, 42, 1000, 31337} {
-		g := NewGame(Config{Seed: seed})
+		g := New(Params{Seed: seed})
 		for depth := 1; depth <= 30; depth++ {
 			g.Depth = depth
 			g.NewLevel()

game/run_test.go

@@ -10,7 +10,7 @@ import (
 func TestRunScriptedSession(t *testing.T) {
 	tt := &testTerm{input: []byte("hjkl.i Qy")}
 
-	g := NewGame(Config{Seed: 99, Term: tt})
+	g := New(Params{Seed: 99, Term: tt})
 
 	err := g.Run()
 	if err != nil {
@@ -52,7 +52,7 @@ func TestRunManyTurns(t *testing.T) {
 	script = append(script, " Q y Qy"...)
 	tt := &testTerm{input: script}
 
-	g := NewGame(Config{Seed: 31337, Term: tt})
+	g := New(Params{Seed: 31337, Term: tt})
 
 	err := g.Run()
 	if err != nil {
@@ -68,7 +68,7 @@ func TestRunManyTurns(t *testing.T) {
 // wizard style, then descends and keeps playing.
 func TestRunDownStairs(t *testing.T) {
 	tt := &testTerm{input: []byte(">..Qy")}
-	g := NewGame(Config{Seed: 7, Term: tt})
+	g := New(Params{Seed: 7, Term: tt})
 	g.NewLevel()
 	g.Player.Pos = g.Level.Stairs // stand on the stairs
 	g.restored = true             // keep Run from regenerating the level
@@ -99,7 +99,7 @@ func TestSaveCommandRoundTrip(t *testing.T) {
 	// 'S' with no default file name goes straight to the name prompt.
 	script := "S" + path + "\n"
 	tt := &testTerm{input: []byte(script)}
-	g := NewGame(Config{Seed: 55, Term: tt})
+	g := New(Params{Seed: 55, Term: tt})
 
 	g.FileName = "" // force the name prompt
 
@@ -108,7 +108,7 @@ func TestSaveCommandRoundTrip(t *testing.T) {
 		t.Fatalf("Run: %v", runErr)
 	}
 
-	h, err := Restore(path, Config{Term: &testTerm{}})
+	h, err := Restore(path, Params{Term: &testTerm{}})
 	if err != nil {
 		t.Fatalf("Restore: %v", err)
 	}

game/save.go

@@ -681,7 +681,7 @@ var ErrSaveOutOfDate = errors.New("sorry, saved game is out of date")
 
 // Restore restores a saved game from a file (save.c restore). The file is
 // deleted, as in C, to defeat restarting from the same save.
-func Restore(path string, cfg Config) (*RogueGame, error) {
+func Restore(path string, params Params) (*RogueGame, error) {
 	f, err := os.Open(path) //nolint:gosec // G304: the save path is user-chosen by design
 	if err != nil {
 		return nil, err
@@ -704,12 +704,12 @@ func Restore(path string, cfg Config) (*RogueGame, error) {
 		data:      newGameData(),
 		Rng:       &Rng{},
 		Playing:   true,
-		ScorePath: cfg.ScorePath,
+		ScorePath: params.ScorePath,
 		FileName:  path,
-		rogueOpts: cfg.RogueOpts,
+		rogueOpts: params.RogueOpts,
 		restored:  true,
 	}
-	g.scr = NewScreen(cfg.Term)
+	g.scr = NewScreen(params.Term)
 	g.Msgs.attach(g.scr, g.look, g.readchar)
 	g.applySnapshot(&st)
 

game/save_test.go

@@ -29,7 +29,7 @@ func TestSaveRestoreRoundTrip(t *testing.T) {
 		t.Fatalf("saveFile: %v", saveErr)
 	}
 
-	h, err := Restore(path, Config{Term: &testTerm{}})
+	h, err := Restore(path, Params{Term: &testTerm{}})
 	if err != nil {
 		t.Fatalf("Restore: %v", err)
 	}
@@ -154,7 +154,7 @@ func TestRestoreRejectsWrongVersion(t *testing.T) {
 		t.Fatal(closeErr)
 	}
 
-	_, restoreErr := Restore(path, Config{})
+	_, restoreErr := Restore(path, Params{})
 	if restoreErr == nil {
 		t.Error("restore accepted an out-of-date save")
 	}

game/tables_test.go

@@ -32,7 +32,7 @@ func TestProbabilitiesSumTo100(t *testing.T) {
 }
 
 func TestInitProbsCumulative(t *testing.T) {
-	g := NewGame(Config{Seed: 1})
+	g := New(Params{Seed: 1})
 
 	last := g.Items.Potions[NumPotionTypes-1].Prob
 	if last != 100 {
@@ -47,14 +47,14 @@ func TestInitProbsCumulative(t *testing.T) {
 }
 
 func TestNewGameRandomizesAppearances(t *testing.T) {
-	g := NewGame(Config{Seed: 12345})
+	g := New(Params{Seed: 12345})
 
 	checkPotionColors(t, g)
 	checkScrollNames(t, g)
 	checkWandMaterials(t, g)
 
 	// Determinism: same seed, same appearances.
-	h := NewGame(Config{Seed: 12345})
+	h := New(Params{Seed: 12345})
 	if h.Items != g.Items {
 		t.Error("two games with the same seed produced different item lore")
 	}