Init

7 files changed, 359 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
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+.idea/
+out/
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,176 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      "Work" shall mean the work of authorship, whether in Source or
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+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
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+
+   9. Accepting Warranty or Additional Liability. While redistributing
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+      and charge a fee for, acceptance of support, warranty, indemnity,
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+      defend, and hold each Contributor harmless for any liability
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
diff --git a/NOTICE b/NOTICE
new file mode 100644
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--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,5 @@
+TicTacToe
+Copyright 2021 Mavlon Erkinboev.
+
+This product includes software developed by Mavlon Erkinboev.
+You can find the original software at https://github.com/mavlushechka/TicTacToe
diff --git a/TicTacToe.iml b/TicTacToe.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/TicTacToe.iml
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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/com/mavlushechka/tictactoe/TicTacToe.java b/src/com/mavlushechka/tictactoe/TicTacToe.java
new file mode 100644
index 0000000..a627585
--- /dev/null
+++ b/src/com/mavlushechka/tictactoe/TicTacToe.java
@@ -0,0 +1,151 @@
+package com.mavlushechka.tictactoe;
+
+import com.mavlushechka.tictactoe.exceptions.IncorrectCoordinatesDiapasonException;
+import com.mavlushechka.tictactoe.exceptions.OccupiedCellException;
+
+import java.util.Scanner;
+
+public final class TicTacToe {
+
+    private static final char FIRST_PLAYER = 'X';
+
+    private static final char SECOND_PLAYER = 'O';
+
+    private final char[][] cells = {{' ', ' ', ' '}, {' ', ' ', ' '}, {' ', ' ', ' '}};
+
+    private char currentPlayer = FIRST_PLAYER;
+
+    private boolean gameFinished = false;
+
+    private Character winner;
+
+    public void startGame() {
+        greet();
+        showCells();
+        enterCell();
+    }
+
+    private void greet() {
+        System.out.printf("""
+                Tic-tac-toe is a paper-and-pencil game for two players
+                who take turns marking the spaces in a three-by-three grid with %c or %c.
+                The player who succeeds in placing three of their marks in a
+                horizontal, vertical, or diagonal row is the winner.
+                When all 9 squares are full, the game is over.
+                First player is %c. Players must enter the y and x coordinates separated by a space.
+                
+                """, FIRST_PLAYER, SECOND_PLAYER, FIRST_PLAYER);
+    }
+
+    private void showCells() {
+        System.out.println("---------");
+        for (char[] oneLineCells : cells) {
+            System.out.print("| ");
+            for (char cell : oneLineCells) {
+                System.out.printf("%c ", cell);
+            }
+            System.out.print("|\n");
+        }
+        System.out.println("---------");
+    }
+
+    private void enterCell() {
+        byte y;
+        byte x;
+        String temporaryCoordinates;
+
+        System.out.printf("Player %c enter the coordinates: ", currentPlayer);
+        temporaryCoordinates = new Scanner(System.in).nextLine();
+        try {
+            y = Byte.parseByte(temporaryCoordinates.split(" ")[0]);
+            x = Byte.parseByte(temporaryCoordinates.split(" ")[1]);
+
+            if (!((y >= 1 && y <= 3) && (x >= 1 && x <= 3))) {
+                throw new IncorrectCoordinatesDiapasonException("Incorrect coordinates");
+            } else if (cells[y-1][x-1] != ' ') {
+                throw new OccupiedCellException("Cell is occupied");
+            } else {
+                move(--y, --x);
+            }
+        } catch (NumberFormatException numberFormatException) {
+            System.out.println("You should enter numbers!");
+            enterCell();
+        } catch (IncorrectCoordinatesDiapasonException incorrectCoordinatesDiapasonException) {
+            System.out.println("Coordinates should be from 1 to 3!");
+            enterCell();
+        } catch (OccupiedCellException occupiedCellException) {
+            System.out.println("This cell is occupied! Choose another one!");
+            enterCell();
+        }
+    }
+
+    private void move(byte y, byte x) {
+        cells[y][x] = currentPlayer;
+        currentPlayer = (currentPlayer == FIRST_PLAYER) ? SECOND_PLAYER : FIRST_PLAYER;
+
+        showCells();
+        checkLines();
+        if (!gameFinished) {
+            enterCell();
+        } else {
+            System.out.print(getResult());
+        }
+    }
+
+    private void checkLines() {
+        checkDiagonalLines();
+        if (gameFinished) {
+            return;
+        }
+        checkVerticalAndHorizontalLines();
+        if (gameFinished) {
+            return;
+        }
+        checkIfCellsAreFull();
+    }
+
+    private void checkDiagonalLines() {
+        for (byte i = 0, j = 2; i < 3; i += 2, j -= 2) {
+            if (cells[i][0] != ' ' && (cells[i][0] == cells[1][1] && cells[1][1] == cells[j][2])) {
+                gameFinished = true;
+                winner = cells[i][0];
+                break;
+            }
+        }
+    }
+
+    private void checkVerticalAndHorizontalLines() {
+        for (byte i = 0; i < 3; i++) {
+            if (cells[i][0] != ' ' && ((cells[i][0] == cells[i][1] && cells[i][1] == cells[i][2]) ||
+                    cells[0][i] != ' ' && (cells[0][i] == cells[1][i] && cells[1][i] == cells[2][i]))) {
+                gameFinished = true;
+                winner = ((cells[i][0] == cells[i][1] && cells[i][1] == cells[i][2])) ? cells[i][0] : cells[0][i];
+            }
+        }
+    }
+
+    private void checkIfCellsAreFull() {
+        for (byte i = 0, fullCells = 9; i < 3; i++) {
+            for (byte j = 0; j < 3; j++) {
+                if (cells[i][j] != ' ') {
+                    fullCells--;
+                }
+            }
+            if (fullCells == 0) {
+                gameFinished = true;
+            }
+        }
+    }
+
+    private String getResult() {
+        return winner == null ? "Draw" : "Congratulations, " + winner + " is a winner!";
+    }
+}
+
+final class Main {
+
+    public static void main(String[] args) {
+        TicTacToe ticTacToe = new TicTacToe();
+        ticTacToe.startGame();
+    }
+}
\ No newline at end of file
diff --git a/src/com/mavlushechka/tictactoe/exceptions/IncorrectCoordinatesDiapasonException.java b/src/com/mavlushechka/tictactoe/exceptions/IncorrectCoordinatesDiapasonException.java
new file mode 100644
index 0000000..63b1da1
--- /dev/null
+++ b/src/com/mavlushechka/tictactoe/exceptions/IncorrectCoordinatesDiapasonException.java
@@ -0,0 +1,7 @@
+package com.mavlushechka.tictactoe.exceptions;
+
+public class IncorrectCoordinatesDiapasonException extends Exception {
+    public IncorrectCoordinatesDiapasonException(String errorMessage) {
+        super(errorMessage);
+    }
+}
\ No newline at end of file
diff --git a/src/com/mavlushechka/tictactoe/exceptions/OccupiedCellException.java b/src/com/mavlushechka/tictactoe/exceptions/OccupiedCellException.java
new file mode 100644
index 0000000..4da451f
--- /dev/null
+++ b/src/com/mavlushechka/tictactoe/exceptions/OccupiedCellException.java
@@ -0,0 +1,7 @@
+package com.mavlushechka.tictactoe.exceptions;
+
+public class OccupiedCellException extends Exception {
+    public OccupiedCellException(String errorMessage) {
+        super(errorMessage);
+    }
+}