From 6b0fedfabfc082b47adc657f163849157cd21dab Mon Sep 17 00:00:00 2001
From: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>
Date: Sat, 29 Apr 2023 22:26:16 +0100
Subject: [PATCH] game init

---
 .../controller/web/GeneralWebController.java  |   7 +
 src/main/resources/static/js/game.js          | 264 ++++++++++++++++++
 src/main/resources/templates/game.html        |  80 ++++++
 3 files changed, 351 insertions(+)
 create mode 100644 src/main/resources/static/js/game.js
 create mode 100644 src/main/resources/templates/game.html

diff --git a/src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java b/src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java
index d2bc4886..1d61a0ae 100644
--- a/src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java
+++ b/src/main/java/stirling/software/SPDF/controller/web/GeneralWebController.java
@@ -14,6 +14,13 @@ public class GeneralWebController {
         model.addAttribute("currentPage", "merge-pdfs");
         return "merge-pdfs";
     }
+    @GetMapping("/game")
+    @Hidden
+    public String gameForm(Model model) {
+        model.addAttribute("currentPage", "game");
+        return "game";
+    }
+    
     @GetMapping("/multi-tool")
     @Hidden
     public String multiToolForm(Model model) {
diff --git a/src/main/resources/static/js/game.js b/src/main/resources/static/js/game.js
new file mode 100644
index 00000000..a38f860d
--- /dev/null
+++ b/src/main/resources/static/js/game.js
@@ -0,0 +1,264 @@
+document.addEventListener('DOMContentLoaded', function() {
+
+    const gameContainer = document.getElementById('game-container');
+    const player = document.getElementById('player');
+    const scoreElement = document.getElementById('score');
+    const levelElement = document.getElementById('level');
+    const livesElement = document.getElementById('lives');
+    const highScoreElement = document.getElementById('high-score');
+
+
+    let playerX = gameContainer.clientWidth / 2;
+    let playerY = 50;
+    let paused = false;
+    const fireRate = 200; // Time between shots in milliseconds
+    let lastProjectileTime = 0;
+    let lives = 3;
+    let highScore = localStorage.getItem('highScore') ? parseInt(localStorage.getItem('highScore')) : 0;
+    updateHighScore();
+
+
+
+    const keysPressed = {};
+    const pdfs = [];
+    const projectiles = [];
+    let score = 0;
+    let level = 1;
+    let pdfSpeed = 1;
+    let gameOver = false;
+
+    function handleKeys() {
+	    if (keysPressed['ArrowLeft']) {
+	        playerX -= 10;
+	    }
+	    if (keysPressed['ArrowRight']) {
+	        playerX += 10;
+	    }
+	    if (keysPressed[' '] && !gameOver) {
+	        const currentTime = new Date().getTime();
+	        if (currentTime - lastProjectileTime >= fireRate) {
+	            shootProjectile();
+	            lastProjectileTime = currentTime;
+	        }
+	    }
+	    updatePlayerPosition();
+	}
+
+
+
+
+    document.addEventListener('keydown', (event) => {
+        keysPressed[event.key] = true;
+        handleKeys();
+    });
+
+    document.addEventListener('keyup', (event) => {
+        keysPressed[event.key] = false;
+    });
+
+
+    function updatePlayerPosition() {
+        player.style.left = playerX + 'px';
+        player.style.bottom = playerY + 'px';
+    }
+
+    function updateLives() {
+        livesElement.textContent = 'Lives: ' + lives;
+    }
+
+    function updateHighScore() {
+        highScoreElement.textContent = 'High Score: ' + highScore;
+    }
+
+
+    function shootProjectile() {
+        const projectile = document.createElement('div');
+        projectile.classList.add('projectile');
+        projectile.style.backgroundColor = 'black';
+        projectile.style.width = '5px';
+        projectile.style.height = '10px';
+        projectile.style.left = playerX + 20 + 'px';
+        projectile.style.top = (gameContainer.clientHeight - playerY - 20) + 'px';
+        gameContainer.appendChild(projectile);
+        projectiles.push(projectile);
+    }
+
+
+    function spawnPdf() {
+        const pdf = document.createElement('img');
+        pdf.src = 'images/file-earmark-pdf.svg';
+        pdf.classList.add('pdf');
+        pdf.style.left = Math.floor(Math.random() * (gameContainer.clientWidth - 50)) + 'px';
+        pdf.style.top = '0px';
+        gameContainer.appendChild(pdf);
+        pdfs.push(pdf);
+    }
+
+function resetEnemies() {
+    pdfs.forEach((pdf) => gameContainer.removeChild(pdf));
+    pdfs.length = 0;
+}
+
+
+    function updateGame() {
+        if (gameOver || paused) return;
+
+        pdfs.forEach((pdf, pdfIndex) => {
+            const pdfY = parseInt(pdf.style.top) + pdfSpeed;
+            if (pdfY + 50 > gameContainer.clientHeight) {
+                gameContainer.removeChild(pdf);
+                pdfs.splice(pdfIndex, 1);
+
+                // Deduct 2 points when a PDF gets past the player
+                score -= 0;
+                updateScore();
+
+                // Decrease lives and check if game over
+                lives--;
+                updateLives();
+                if (lives <= 0) {
+                    endGame();
+                    return;
+                }
+
+            } else {
+                pdf.style.top = pdfY + 'px';
+
+                // Check for collision with player
+                if (collisionDetected(player, pdf)) {
+                    lives--;
+                    updateLives();
+                    resetEnemies();
+                    if (lives <= 0) {
+                        endGame();
+                        return;
+                    }
+                }
+            }
+        });
+
+        function resetGame() {
+            playerX = gameContainer.clientWidth / 2;
+            playerY = 50;
+            updatePlayerPosition();
+
+            pdfs.forEach((pdf) => gameContainer.removeChild(pdf));
+            projectiles.forEach((projectile) => gameContainer.removeChild(projectile));
+
+            pdfs.length = 0;
+            projectiles.length = 0;
+
+            score = 0;
+            level = 1;
+            lives = 3;
+            pdfSpeed = 2;
+            gameOver = false;
+
+            updateScore();
+            updateLevel();
+            updateLives();
+
+            setTimeout(updateGame, 1000 / 60);
+            spawnPdfInterval();
+        }
+
+
+
+        projectiles.forEach((projectile, projectileIndex) => {
+            const projectileY = parseInt(projectile.style.top) - 10;
+            if (projectileY < 0) {
+                gameContainer.removeChild(projectile);
+                projectiles.splice(projectileIndex, 1);
+            } else {
+                projectile.style.top = projectileY + 'px';
+            }
+
+            for (let pdfIndex = 0; pdfIndex < pdfs.length; pdfIndex++) {
+                const pdf = pdfs[pdfIndex];
+                if (collisionDetected(projectile, pdf)) {
+                    gameContainer.removeChild(pdf);
+                    gameContainer.removeChild(projectile);
+                    pdfs.splice(pdfIndex, 1);
+                    projectiles.splice(projectileIndex, 1);
+                    score = score + 10;
+                    updateScore();
+                    break;
+                }
+            }
+        });
+
+        setTimeout(updateGame, 1000 / 60);
+    }
+
+
+
+
+    function updateScore() {
+	    scoreElement.textContent = 'Score: ' + score;
+	    checkLevelUp();
+	}
+
+
+
+    function checkLevelUp() {
+        const newLevel = Math.floor(score / 100) + 1;
+        if (newLevel > level) {
+            level = newLevel;
+            levelElement.textContent = 'Level: ' + level;
+            pdfSpeed += 1;
+        }
+    }
+
+    function collisionDetected(a, b) {
+        const rectA = a.getBoundingClientRect();
+        const rectB = b.getBoundingClientRect();
+        return (
+            rectA.left < rectB.right &&
+            rectA.right > rectB.left &&
+            rectA.top < rectB.bottom &&
+            rectA.bottom > rectB.top
+        );
+    }
+
+    function endGame() {
+        gameOver = true;
+        if (score > highScore) {
+            highScore = score;
+            localStorage.setItem('highScore', highScore);
+            updateHighScore();
+        }
+        alert('Game Over! Your final score is: ' + score);
+        resetGame();
+    }
+
+
+
+
+    let spawnPdfTimeout;
+
+    function spawnPdfInterval() {
+        if (gameOver || paused) {
+            clearTimeout(spawnPdfTimeout);
+            return;
+        }
+        spawnPdf();
+        spawnPdfTimeout = setTimeout(spawnPdfInterval, 1000 - level * 50);
+    }
+
+    updatePlayerPosition();
+    updateGame();
+    spawnPdfInterval();
+
+
+    document.addEventListener('visibilitychange', function() {
+        if (document.hidden) {
+            paused = true;
+        } else {
+            paused = false;
+            updateGame();
+            spawnPdfInterval();
+        }
+
+    });
+
+});
\ No newline at end of file
diff --git a/src/main/resources/templates/game.html b/src/main/resources/templates/game.html
new file mode 100644
index 00000000..cc1dfe52
--- /dev/null
+++ b/src/main/resources/templates/game.html
@@ -0,0 +1,80 @@
+<!DOCTYPE html>
+<html th:lang="${#locale.toString()}" th:lang-direction="#{language.direction}" xmlns:th="http://www.thymeleaf.org">
+
+<th:block th:insert="~{fragments/common :: head(title=#{pageRemover.title})}"></th:block>
+
+<body>
+  <div id="page-container">
+    <div id="content-wrap">
+      <div th:insert="~{fragments/navbar.html :: navbar}"></div>
+      <br> <br>
+      <div class="container">
+        <div class="row justify-content-center">
+          <div class="col-md-6">
+            <div class="game-container-wrapper" style="position: relative;">
+              <div id="game-container">
+                       <div id="score">Score: 0</div>
+        <div id="lives">Lives: 3</div>
+        <div id="level">Level: 1</div>
+        <div id="high-score">High Score: 0</div>
+                  <img src="favicon.svg" class="player" id="player">
+              </div>
+              <style>
+    #game-container {
+        position: relative;
+        width: 800px;
+        height: 600px;
+        background-color: white;
+        margin: auto;
+        overflow: hidden;
+    }
+    .pdf, .player, .projectile {
+        position: absolute;
+    }
+    .pdf {
+        width: 50px;
+        height: 50px;
+    }
+    .player {
+        width: 50px;
+        height: 50px;
+    }
+    .projectile {
+        background-color: black  !important;
+        width: 5px;
+        height: 10px;
+    }
+    #score, #level, #lives,#high-score  {
+        color: black;
+        font-family: sans-serif;
+        position: absolute;
+        font-size: 24px;
+    }
+    #score {
+        top: 10px;
+        left: 10px;
+    }
+    #level {
+        top: 10px;
+        right: 10px;
+    }
+    #lives {
+	    top: 10px;
+	    left: 190px;
+	}
+	#high-score {
+	    top: 10px;
+	    left: 290px;
+	}
+              </style>
+              <script src="js/game.js"></script>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+    <div th:insert="~{fragments/footer.html :: footer}"></div>
+  </div>
+</body>
+</html>
+