Field.java

package jp.starfree.cpsv;

public class Field {

	private int width, height;

	private final char[][] field;
	private final char black = '●', white = '○', space = '　', wall ='■';

	private int blacks = 0, whites = 0;

	/*
	 * 8 * 8 のFieldをインスタンス化する
	 *  @since 0.0.1
	 */
	Field() {
		this.width = 10;
		this.height = 10;
		this.field = new char[this.width][this.height];
		for(var i = 0; i < this.width; i += 1) {
			for(var j = 0; j < this.height; j += 1) {
				if(i == 0 || i == this.width - 1 || j == 0 || j == this.height - 1) this.field[i][j] = wall;
				else if((i == (this.width - 1) / 2 && j == (this.height - 1) / 2) || (i == (this.width + 1) / 2 && j == (this.height + 1) / 2) ) this.field[i][j] = white;
				else if((i == (this.width + 1) / 2 && j == (this.height - 1) / 2) || (i == (this.width - 1) / 2 && j == (this.height + 1) / 2) ) this.field[i][j] = black;
				else this.field[i][j] = space;
			}
		}
	}

	/*
	 * width * height のFieldをインスタンス化する
	 *  @since 0.0.1
	 *  @param width 幅
	 *      壁も含める
	 *  @param height 高さ
	 *      壁も含める
	 */
	Field(int width, int height) {
		if(width != height) {
			try { throw new Exception("Failed Instantiating.");
			} catch (Exception e) { }
			System.exit(-1);
		}
		this.width = width;
		this.height = height;
		this.field = new char[this.width][this.height];
		for(var i = 0; i < this.width; i += 1) {
			for(var j = 0; j < this.height; j += 1) {
				if(i == 0 || i == this.width - 1 || j == 0 || j == this.height - 1) this.field[i][j] = wall;
				else if((i == (this.width - 1) / 2 && j == (this.height - 1) / 2) || (i == (this.width + 1) / 2 && j == (this.height + 1) / 2) ) this.field[i][j] = white;
				else if((i == (this.width + 1) / 2 && j == (this.height - 1) / 2) || (i == (this.width - 1) / 2 && j == (this.height + 1) / 2) ) this.field[i][j] = black;
				else this.field[i][j] = space;
			}
		}
	}

	/*
	 * 引数のfieldをもとにFieldをインスタンス化する
	 *  @since 0.0.1
	 *  @param field フィールド
	 */
	Field(char[][] field) {
		this.field = field;
	}

	/*
	 * widthを返す
	 *  @since 0.0.1
	 *  @return width
	 */
	public int getWidth() {
		return this.width;
	}

	/*
	 * heightを返す
	 *  @since 0.0.1
	 *  @return height
	 */
	public int getHeight() {
		return this.height;
	}

	/*
	 * 左からwidth番目、上からheight番目においての文字を返す
	 *  @since 0.0.1
	 *  @param width 幅
	 *      壁も含める
	 *  @param height 高さ
	 *      壁も含める
	 *  @return 失敗したら◇
	 */
	public char getSquare(int width, int height) {
		switch(this.field[width][height]) {
			case wall: return wall;
			case black: return black;
			case white: return white;
			case space: return space;
			default: return '◇';
		}
	}

	/*
	 * フィールドに左からwidth番目、上からheight番目においての文字を入れる
	 *  @since 0.0.1
	 *  @param width 幅
	 *      壁も含める
	 *  @param height 高さ
	 *      壁も含める
	 *  @param type 種類
	 *  @return 成功したらtrue, 失敗したらfalse
	 */
	public boolean setSquare(int width, int height, String type) {
		if(!(this.field[width][height] == space)) return false;
		switch(type) {
			case "black": this.field[width][height] = black; return true;
			case "white": this.field[width][height] = white; return true;
			case "wall": case "space":
		}
		return false;
	}

	/*
	 * フィールドの取得
	 *  @since 0.0.1
	 *  @return Field型のフィールド
	 */
	public Field getField() {
		return new Field(this.field);
	}

	/*
	 *  フィールドの取得
	 *  @since 0.0.1
	 *  @return char[][]型のフィールド
	 */
	public char[][] toCharArray() {
		return this.field;
	}

	/*
	 * 黒の数の取得
	 *  @since 0.0.1
	 *  @return 黒の数
	 */
	public int getValueOfBlack() {
		for(var i = 0; i < this.width; i += 1) {
			for(var j = 0; j < this.height; j += 1) {
				if(this.field[i][j] == this.black) this.blacks += 1;
			}
		}
		return blacks;
	}

	/*
	 * 白の数の取得
	 *  @since 0.0.1
	 *  @return 白の数
	 */
	public int getValueOfWhite() {
		for(var i = 0; i < this.width; i += 1) {
			for(var j = 0; j < this.height; j += 1) {
				if(this.field[i][j] == this.white) this.whites += 1;
			}
		}
		return this.whites;
	}

}