init

c1/ConnectFour.java

@@ -0,0 +1,117 @@
+// Nik Johnson
+// 4-15-2024
+// TA: Zachary Bi
+
+import java.util.*;
+
+public class ConnectFour extends AbstractStrategyGame {
+
+	private char[][] board;
+	private int currentPlayer;	
+	private String[] players;
+	private List<Character> playerSymbols;
+
+	public ConnectFour(String player1, String player2) {
+		this.board = new char[6][7];
+		this.players = new String[2];
+		this.playerSymbols = new ArrayList<>();
+		this.currentPlayer = 0;
+		players[0] = player1;
+		players[1] = player2;
+		playerSymbols.add('X');
+		playerSymbols.add('O');
+
+		// initialize empty board
+		for (int i = 0; i < board.length; i++) {
+			for (int n = 0; n < board[i].length; n++) {
+				board[i][n] = ' ';
+			}
+		}
+	}
+
+	public String instructions() {
+		String output = "";
+
+		output += "Welcome to Connect Four! This game consists of a 7x6 grid, each column of";
+		output += " which you may choose to 'drop' a disc down by inputting numbers 1-7.\n";
+		output += "Player 1's symbol is 'X', Player 2's is 'O'\n";
+		output += "To win, you must place 4 of your discs in a row, vertically or horizontally.\n";
+		output += "Have fun!";
+
+		return output;
+	}
+
+	// constructs game board in readable format
+	// no parameters
+	// returns formatted representation of game board
+	public String toString() {
+		String output = "";
+		for (char[] row : board) {
+			for (char loc : row) {
+				output += "[" + loc + "]";
+			}
+			output += "\n";
+		}
+		return output;
+	}
+
+
+	public int getWinner() {
+    // rows
+    for (int i = 0; i < board.length; i++) {
+        for (int j = 0; j <= board[i].length - 4; j++) {
+            char symbol = board[i][j];
+            if (symbol != ' ' && board[i][j + 1] == symbol && board[i][j + 2] == symbol && board[i][j + 3] == symbol) {
+                return playerSymbols.indexOf(symbol) + 1;
+            }
+        }
+    }
+
+    // columns
+    for (int j = 0; j < board[0].length; j++) {
+        for (int i = 0; i <= board.length - 4; i++) {
+            char symbol = board[i][j];
+            if (symbol != ' ' && board[i + 1][j] == symbol && board[i + 2][j] == symbol && board[i + 3][j] == symbol) {
+                return playerSymbols.indexOf(symbol) + 1;
+            }
+        }
+    }
+
+    return -1;
+}
+
+
+	
+
+	public int getNextPlayer() {
+		return this.currentPlayer + 1;
+	}
+
+	public void makeMove(Scanner input) {
+		System.out.println(players[getNextPlayer() - 1] + ": Choose a column (1-7)");
+		int col = Integer.parseInt(input.next()) - 1;
+
+		if (col < 0 || col > 6) {
+			throw new IllegalArgumentException("selected column out of bounds");
+		}
+
+		boolean notPlaced = true;
+		for (int n = board.length - 1; n >= 0 && notPlaced; n--) {
+			if (board[n][col] == ' ') {
+				if (currentPlayer == 0) {
+					board[n][col] = 'X';
+				} else if (currentPlayer == 1) {
+					board[n][col] = 'O';
+				}
+				notPlaced = false;
+			}	
+		} 
+
+		if (currentPlayer == 0) {
+			currentPlayer = 1;
+		} else if (currentPlayer == 1) {
+			currentPlayer = 0;
+		}
+	}
+
+}