diff --git a/src/main/java/com/tictactoe/InitServlet.java b/src/main/java/com/tictactoe/InitServlet.java new file mode 100644 index 00000000..cacc6bbc --- /dev/null +++ b/src/main/java/com/tictactoe/InitServlet.java @@ -0,0 +1,25 @@ +package com.tictactoe; + +import java.io.IOException; +import java.util.List; +import javax.servlet.ServletException; +import javax.servlet.annotation.WebServlet; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.servlet.http.HttpSession; + +@WebServlet(name = "InitServlet", value = "/start") +public class InitServlet extends HttpServlet { + + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) + throws ServletException, IOException { + HttpSession session = req.getSession(true); + Field field = new Field(); + List data = field.getFieldData(); + session.setAttribute("field", field); + session.setAttribute("data", data); + getServletContext().getRequestDispatcher("/index.jsp").forward(req, resp); + } +} diff --git a/src/main/java/com/tictactoe/LogicServlet.java b/src/main/java/com/tictactoe/LogicServlet.java new file mode 100644 index 00000000..dc8ce8dc --- /dev/null +++ b/src/main/java/com/tictactoe/LogicServlet.java @@ -0,0 +1,81 @@ +package com.tictactoe; + +import java.util.List; +import javax.servlet.RequestDispatcher; +import javax.servlet.ServletException; +import javax.servlet.annotation.WebServlet; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.io.IOException; +import javax.servlet.http.HttpSession; + +@WebServlet(name = "LogicServlet", value = "/logic") +public class LogicServlet extends HttpServlet { + + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) + throws ServletException, IOException { + HttpSession currentSession = req.getSession(); + Field field = extractField(currentSession); + int index = getSelectedIndex(req); + Sign currentSign = field.getField().get(index); + if (Sign.EMPTY != currentSign) { + RequestDispatcher requestDispatcher = getServletContext().getRequestDispatcher( + "/index.jsp"); + requestDispatcher.forward(req, resp); + return; + } + field.getField().put(index, Sign.CROSS); + if (checkWin(resp, currentSession, field)) { + return; + } + int emptyFieldIndex = field.getEmptyFieldIndex(); + if (emptyFieldIndex >= 0) { + field.getField().put(emptyFieldIndex, Sign.NOUGHT); + if (checkWin(resp, currentSession, field)) { + return; + } + } else { + currentSession.setAttribute("draw", true); + List data = field.getFieldData(); + currentSession.setAttribute("data", data); + resp.sendRedirect("/index.jsp"); + return; + } + + List data = field.getFieldData(); + currentSession.setAttribute("data", data); + currentSession.setAttribute("field", field); + resp.sendRedirect("/index.jsp"); + } + + private int getSelectedIndex(HttpServletRequest req) { + String click = req.getParameter("click"); + boolean isNumeric = click.chars().allMatch(Character::isDigit); + return isNumeric ? Integer.parseInt(click) : 0; + } + + private Field extractField(HttpSession session) { + Object field = session.getAttribute("field"); + if (Field.class != field.getClass()) { + session.invalidate(); + throw new RuntimeException("Field is not an instance of Field.class"); + } + return (Field) field; + } + + private boolean checkWin(HttpServletResponse resp, HttpSession currentSession, Field field) + throws IOException { + Sign winSign = field.checkWin(); + if (Sign.CROSS == winSign || Sign.NOUGHT == winSign) { + currentSession.setAttribute("winner", winSign); + List data = field.getFieldData(); + currentSession.setAttribute("data", data); + resp.sendRedirect("/index.jsp"); + return true; + } + return false; + } + +} diff --git a/src/main/java/com/tictactoe/RestartServlet.java b/src/main/java/com/tictactoe/RestartServlet.java new file mode 100644 index 00000000..30bb52e1 --- /dev/null +++ b/src/main/java/com/tictactoe/RestartServlet.java @@ -0,0 +1,17 @@ +package com.tictactoe; + +import java.io.IOException; +import javax.servlet.annotation.WebServlet; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +@WebServlet(name = "RestartServlet", value = "/restart") +public class RestartServlet extends HttpServlet { + + @Override + protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException { + req.getSession().invalidate(); + resp.sendRedirect("/start"); + } +} diff --git a/src/main/webapp/index.jsp b/src/main/webapp/index.jsp index 964cc071..49af4278 100644 --- a/src/main/webapp/index.jsp +++ b/src/main/webapp/index.jsp @@ -1,16 +1,66 @@ +<%@ page import="com.tictactoe.Sign" %> <%@ page contentType="text/html;charset=UTF-8" language="java" %> + <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> Tic-Tac-Toe + +

Tic-Tac-Toe

+
+ + - diff --git a/src/main/webapp/static/main.css b/src/main/webapp/static/main.css index e69de29b..09637ebd 100644 --- a/src/main/webapp/static/main.css +++ b/src/main/webapp/static/main.css @@ -0,0 +1,11 @@ +td { + border: 3px solid black; + padding: 10px; + border-collapse: separate; + margin: 10px; + width: 100px; + height: 100px; + font-size: 50px; + text-align: center; + empty-cells: show; +} \ No newline at end of file