228 lines
5.3 KiB
Plaintext
228 lines
5.3 KiB
Plaintext
// 🌀 迷路ジェネレーター - outboxキーワード活用デモ
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// 棒倒し法による迷路生成
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print("=== Maze Generator with outbox ===")
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// Cellの定義(迷路の1マス)
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box Cell {
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init { x, y, wall }
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Cell(x_pos, y_pos) {
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me.x = x_pos
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me.y = y_pos
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me.wall = true // 初期状態は壁
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}
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makePassage() {
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me.wall = false
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}
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isWall() {
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return me.wall
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}
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}
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// 迷路Box定義
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box Maze {
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init { width, height, cells }
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Maze(w, h) {
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me.width = w
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me.height = h
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me.cells = new MapBox() // 座標→Cellのマップ
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// 初期化:全部壁にする
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local y, x, key, cell
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y = 0
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loop(y < h) {
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x = 0
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loop(x < w) {
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key = x + "," + y
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cell = new Cell(x, y)
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me.cells.set(key, cell)
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x = x + 1
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}
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y = y + 1
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}
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}
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// 座標からCellを取得
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getCell(x, y) {
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local key
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key = x + "," + y
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return me.cells.get(key)
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}
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// 迷路生成(簡易版:外周以外を通路にする)
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generate() {
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print("Generating maze...")
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// まず通路を作る(1マスおきに)
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local y, x, cell
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y = 1
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loop(y < me.height - 1) {
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x = 1
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loop(x < me.width - 1) {
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// 奇数座標を通路にする
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if isOdd(x) && isOdd(y) {
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cell = me.getCell(x, y)
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cell.makePassage()
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}
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x = x + 1
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}
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y = y + 1
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}
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// 棒倒し法で壁を作る
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y = 2
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loop(y < me.height - 2) {
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if isEven(y) {
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x = 2
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loop(x < me.width - 2) {
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if isEven(x) {
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me.placeRandomWall(x, y)
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}
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x = x + 2
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}
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}
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y = y + 2
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}
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}
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// ランダムに壁を置く
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placeRandomWall(x, y) {
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// ランダムな方向を選ぶ(簡易版:固定パターン)
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local pattern, dir, dx, dy, targetX, targetY, key
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pattern = (x + y) * 7 // 疑似ランダム
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dir = pattern - (pattern >= 4) * 4 // 0-3の値
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dx = 0
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dy = 0
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if dir == 0 {
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dx = 0
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dy = -1
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} // 上
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if dir == 1 {
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dx = 1
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dy = 0
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} // 右
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if dir == 2 {
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dx = 0
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dy = 1
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} // 下
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if dir == 3 {
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dx = -1
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dy = 0
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} // 左
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targetX = x + dx
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targetY = y + dy
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key = targetX + "," + targetY
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// MapBox.hasを使ってキーの存在確認
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if me.cells.has(key) {
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local cell
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cell = me.getCell(targetX, targetY)
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cell.wall = true
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}
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}
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// 迷路を表示
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display() {
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print("\nGenerated Maze:")
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local y, x, line, cell
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y = 0
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loop(y < me.height) {
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line = ""
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x = 0
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loop(x < me.width) {
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cell = me.getCell(x, y)
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if cell.isWall() {
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line = line + "■"
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} else {
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line = line + " "
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}
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x = x + 1
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}
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print(line)
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y = y + 1
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}
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}
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}
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// MazeFactory定義
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box MazeFactory {
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init { dummy }
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}
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// static関数でoutboxを使用
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static function MazeFactory.create(width, height) {
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print("MazeFactory.create called with size: " + width + "x" + height)
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// outbox変数で迷路オブジェクトを作成
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outbox maze
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maze = new Maze(width, height)
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// local変数も使う
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local message
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message = "Creating maze of size " + width + "x" + height
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print(message)
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// 迷路を生成
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maze.generate()
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return maze // 所有権を呼び出し側に移転
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}
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// 複数の迷路を作るデモ
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static function MazeFactory.createMultiple() {
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print("\nCreating multiple mazes...")
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outbox small, medium, large
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small = MazeFactory.create(11, 7)
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medium = MazeFactory.create(21, 11)
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large = MazeFactory.create(31, 15)
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// 最初の迷路だけ返す(他は破棄される)
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return small
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}
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// ヘルパー関数(%演算子がないため工夫)
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function isOdd(n) {
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// n % 2 == 1 の代替実装
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local half
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half = 0
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loop(half * 2 < n) {
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half = half + 1
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}
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return (n - half * 2) == 1
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}
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function isEven(n) {
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// n % 2 == 0 の代替実装
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local half
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half = 0
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loop(half * 2 < n) {
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half = half + 1
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}
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return (n - half * 2) == 0
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}
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// メイン実行
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print("\n--- Small Maze (11x7) ---")
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maze1 = MazeFactory.create(11, 7)
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maze1.display()
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print("\n--- Medium Maze (21x11) ---")
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maze2 = MazeFactory.create(21, 11)
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maze2.display()
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print("\n--- Multiple Maze Creation Test ---")
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firstMaze = MazeFactory.createMultiple()
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print("\nFirst maze from multiple creation:")
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firstMaze.display()
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print("\n=== Maze Generator completed! ===")
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print("Note: Outbox variables successfully transferred ownership!") |