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lucasspeixotolucasspeixoto
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Finish Section 3
1 parent e5ecaf8 commit d3ff165

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+476
-27
lines changed

‎src/exercises/ConstructorClass.java

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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.util.*;
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import java.util.stream.Collectors;
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public class ConstructorClass {
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‎src/exercises/Main.java

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This file was deleted.

‎src/game/Game.java

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package game;
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public interface Game {
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void startGame();
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}

‎src/game/internal/Board.java

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package game.internal;
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class Board {
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private Cell[][] cells;
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private BoardDimensions dimensions;
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public Board(BoardDimensions boardDimensions) {
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this.dimensions = boardDimensions;
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this.cells = new Cell[boardDimensions.getNumberOfColumns()][boardDimensions.getNumberOfRows()];
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initAllCells();
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}
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private void initAllCells() {
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for (int r = 0; r < dimensions.getNumberOfRows(); r++) {
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for (int c = 0; c < dimensions.getNumberOfColumns(); c++) {
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this.cells[c][r] = new Cell();
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}
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}
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}
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public void updateCell(int row, int column, Sign sign) {
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this.cells[column][row].setSign(sign);
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}
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public Sign checkWinner() {
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// Check rows
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for (int r = 0; r < dimensions.getNumberOfRows(); r++) {
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Sign sign = getRowWinner(r);
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if (sign != Sign.EMPTY) {
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return sign;
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}
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}
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// Check columns
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for (int c = 0; c < dimensions.getNumberOfColumns(); c++) {
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Sign sign = getColumnWinner(c);
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if (sign != Sign.EMPTY) {
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return sign;
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}
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}
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// Check diagonal
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Sign sign = getDiagonalWinner(0, 0, 1, 1);
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if (sign != Sign.EMPTY) {
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return sign;
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}
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// Check diagonal
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return getDiagonalWinner(0, dimensions.getNumberOfColumns() - 1, -1, 1);
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}
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public boolean isCellEmpty(int row, int column) {
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return this.cells[column][row].isEmpty();
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}
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public char getPrintableCellSign(int row, int column) {
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return this.cells[column][row].getSign().getValue();
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}
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public boolean isBoardFull() {
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for (int r = 0; r < dimensions.getNumberOfRows(); r++) {
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for (int c = 0; c < dimensions.getNumberOfColumns(); c++) {
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if (this.cells[c][r].isEmpty()) {
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return false;
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}
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}
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}
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return true;
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}
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private Sign getColumnWinner(int currentColumn) {
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Sign initialSign = this.cells[currentColumn][0].getSign();
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if (initialSign == Sign.EMPTY) {
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return initialSign;
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}
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for (int r = 1; r < dimensions.getNumberOfRows(); r++) {
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if (this.cells[currentColumn][r].getSign() != initialSign) {
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return Sign.EMPTY;
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}
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}
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return initialSign;
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}
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private Sign getRowWinner(int currentRow) {
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Sign initialSign = this.cells[0][currentRow].getSign();
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if (initialSign == Sign.EMPTY) {
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return initialSign;
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}
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for (int c = 1; c < dimensions.getNumberOfColumns(); c++) {
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if (this.cells[c][currentRow].getSign() != initialSign) {
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return Sign.EMPTY;
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}
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}
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return initialSign;
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}
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private Sign getDiagonalWinner(int startRow, int startColumn, int horizontalStep, int verticalStep) {
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Sign initialSign = this.cells[startColumn][startRow].getSign();
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if (initialSign == Sign.EMPTY) {
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return Sign.EMPTY;
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}
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int r = startRow + verticalStep;
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int c = startColumn + horizontalStep;
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while (r < dimensions.getNumberOfRows() && c < dimensions.getNumberOfColumns()) {
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if (this.cells[c][r].getSign() != initialSign) {
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return Sign.EMPTY;
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}
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r += verticalStep;
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c += horizontalStep;
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}
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return initialSign;
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}
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}

‎src/game/internal/BoardDimensions.java

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package game.internal;
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class BoardDimensions {
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private static final int NUM_OF_ROWS = 3;
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private static final int NUM_OF_COLUMNS = 3;
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public int getNumberOfRows() {
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return NUM_OF_ROWS;
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}
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public int getNumberOfColumns() {
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return NUM_OF_COLUMNS;
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}
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}

‎src/game/internal/BoardLocation.java

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package game.internal;
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class BoardLocation {
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private int row;
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private int column;
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public BoardLocation(int row, int column) {
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this.row = row;
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this.column = column;
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}
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public int getRow() {
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return row;
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}
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public int getColumn() {
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return column;
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}
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}

‎src/game/internal/BoardPrinter.java

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/*
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* MIT License
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*
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* Copyright (c) 2020 Michael Pogrebinsky - Java Reflection - Master Class
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package game.internal;
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class BoardPrinter {
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private final BoardDimensions dimensions;
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public BoardPrinter(BoardDimensions dimensions) {
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this.dimensions = dimensions;
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}
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public void print(Board board) {
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printHorizontalBorder();
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printBoard(board);
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printHorizontalBorder();
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}
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private void printBoard(Board board) {
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for (int r = 0; r < dimensions.getNumberOfRows(); r++) {
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System.out.print("|");
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for (int c = 0; c < dimensions.getNumberOfColumns(); c++) {
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System.out.printf(" %s |", board.getPrintableCellSign(r, c));
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}
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System.out.println();
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}
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}
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private void printHorizontalBorder() {
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for (int c = 0; c < dimensions.getNumberOfColumns() * 4 + 1; c++) {
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System.out.print("-");
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}
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System.out.println();
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}
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}

‎src/game/internal/Cell.java

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package game.internal;
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class Cell {
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private Sign sign;
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public Cell() {
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sign = Sign.EMPTY;
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}
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public boolean isEmpty() {
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return sign == Sign.EMPTY;
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}
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public Sign getSign() {
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return sign;
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}
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public void setSign(Sign sign) {
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this.sign = sign;
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}
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}

‎src/game/internal/ComputerInputProvider.java

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package game.internal;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Random;
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class ComputerInputProvider implements InputProvider {
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public final BoardDimensions dimensions;
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private final Random random = new Random();
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public ComputerInputProvider(BoardDimensions dimensions) {
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this.dimensions = dimensions;
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}
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@Override
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public BoardLocation provideNextMove(Board board) {
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List<BoardLocation> availableCells = new ArrayList<>();
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for (int r = 0; r < dimensions.getNumberOfRows(); r++) {
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for (int c = 0; c < dimensions.getNumberOfColumns(); c++) {
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if (board.isCellEmpty(r, c)) {
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availableCells.add(new BoardLocation(r, c));
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}
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}
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}
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int chosenCell = random.nextInt(availableCells.size());
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return availableCells.get(chosenCell);
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}
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}

‎src/game/internal/ComputerPlayer.java

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package game.internal;
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class ComputerPlayer implements Player {
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private static final String NAME = "Computer";
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private final ComputerInputProvider locationProvider;
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public ComputerPlayer(ComputerInputProvider locationProvider) {
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this.locationProvider = locationProvider;
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}
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@Override
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public void play(Board board, Sign sign) {
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BoardLocation location = locationProvider.provideNextMove(board);
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board.updateCell(location.getRow(), location.getColumn(), sign);
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}
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@Override
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public String getPlayerName() {
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return NAME;
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}
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}

‎src/game/internal/HumanPlayer.java

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package game.internal;
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class HumanPlayer implements Player {
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private static final String NAME = "You";
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private final KeyboardInputProvider inputProvider;
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public HumanPlayer(KeyboardInputProvider inputProvider) {
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this.inputProvider = inputProvider;
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}
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@Override
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public void play(Board board, Sign sign) {
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BoardLocation nextMoveLocation = inputProvider.provideNextMove(board);
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board.updateCell(nextMoveLocation.getRow(), nextMoveLocation.getColumn(), sign);
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}
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@Override
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public String getPlayerName() {
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return NAME;
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}
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}

‎src/game/internal/InputProvider.java

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package game.internal;
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interface InputProvider {
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BoardLocation provideNextMove(Board board);
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}

‎src/game/internal/KeyboardInputProvider.java

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package game.internal;
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import java.util.Scanner;
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class KeyboardInputProvider implements InputProvider {
6+
private final Scanner scanner = new Scanner(System.in);
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private final BoardDimensions boardDimensions;
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public KeyboardInputProvider(BoardDimensions boardDimensions) {
10+
this.boardDimensions = boardDimensions;
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}
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@Override
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public BoardLocation provideNextMove(Board board) {
15+
int row;
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int column;
17+
do {
18+
System.out.print("Please choose row: ");
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row = scanner.nextInt();
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System.out.print("Please choose column: ");
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column = scanner.nextInt();
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} while (row < 0
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|| row >= boardDimensions.getNumberOfRows()
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|| column < 0
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|| column >= boardDimensions.getNumberOfColumns()
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|| !board.isCellEmpty(row, column));
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return new BoardLocation(row, column);
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}
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}

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