雪球大戰（預設版） | JavaScript 程式專案

{"id":328959,"student_id":10,"content":"setBackdrop('bg.png');\nlet level = createSprite('L0.png', 'L1.png', 'L2.png', 'L3.png', 'L4.png', 'L5.png', 'L6.png', 'L7.png', 'L8.png', 'L9.png', 'L10.png', 'L11.png', 'L12.png'); //開始\nlet ranks = createSprite('r0.png', 'r1.png', 'r2.png', 'r3.png', 'r4.png', 'r5.png', 'r6.png', 'r7.png', 'r8.png', 'r9.png', 'r10.png', 'r11.png', 'r12.png'); //官階\nlet ball = createSprite('ball.png'); //玩家雪球\nlet player = createSprite('r_0.png', 'r_1.png', 'r_2.png'); //玩家\n\nlet enemies = []; //存放敵人角色\nlet balls = []; //存放敵人雪球\nlet life = 3; //玩家血量\n\nlevel.layer = 1000;\nranks.layer = 1000;\nplayer.layer = 999;\nball.layer = 998;\nranks.hidden = true;\n\n// 創造敵人\nfor (let i = 0; i \u003c 10; i++) {\n    let e = createSprite('g_0.png', 'g_1.png', 'g_2.png', 'g_3.png', 'g_4.png', 'g_5.png');\n    e.rotationStyle = 'fixed';\n    enemies.push(e); //存入敵人角色陣列\n}\n\n//createSound('bgm.mp3', true);\n\n// 開始新關卡\nfunction startLevel () {\n\n    ball.hidden = true; //隱藏玩家雪球\n    level.hidden = true; //隱藏開始畫面\n    life = 3;\n\n    // 初始化敵人位置、方向、計時器\n    for (let i = 0; i \u003c 10; i++) {\n        let e = enemies[i];\n        e.x = Math.random() * 450;\n        e.y = Math.random() * 450;\n        e.direction = Math.floor(Math.random() * 4) * 90 + 45;\n        e.timer = Math.floor(Math.random() * 180) + 180;\n        // e.hidden = i \u003e= level.costumeId * 3 + 3;\n    }\n}\n\n// 遊戲迴圈\nfunction gameloop () {\n    // 關卡圖隱藏而且軍階圖隱藏\n    if (level.hidden \u0026\u0026 ranks.hidden) {\n        updatePlayer(); // 更新玩家\n        enemies.forEach(updateEnemy); // 更新敵人\n        balls.forEach(updateBall); // 更新敵人的雪球\n        checkIsGameover(); // 檢查遊戲使否結束\n    }\n    \n    if (level.y \u003c 450) level.y += 30;\n    if (ranks.y \u003c 450) ranks.y += 30;\n}\n\n// 更新敵人\nfunction updateEnemy (e) {\n\n    e.timer -= 1;\n\n    if (e.timer \u003e 180) {\n        e.stepForward(3);\n        e.costumeId = Math.floor(e.timer / 10) % 2;\n    }\n    if (e.timer == 180) {\n        e.costumeId = 2;\n    }\n    if (e.timer == 120) {\n        e.costumeId = 3;\n    }\n    if (e.timer == 60 \u0026\u0026 e.hidden == false) {\n        e.costumeId = 4;\n        createBall(e.x, e.y);\n        //createSound('shoot.mp3');\n    }\n    if (e.timer == 0) {\n        e.direction = Math.floor(Math.random() * 4) * 90 + 45;\n        e.timer = Math.floor(Math.random() * 180) + 180;\n    }\n\n    // 如果超出邊界就反轉\n    if (e.x \u003c 0 || e.y \u003c 0 || e.x + e.y \u003e 900) {\n        e.direction += 180;\n    }\n\n    // 如果碰到玩家的雪球\n    if (e.touched(ball) \u0026\u0026 e.costumeId != 5) {\n        ball.hidden = true; // 隱藏玩家雪球\n        e.costumeId = 5;\n        e.timer = -1;\n    }\n    \n}\n\n// 更新玩家\nfunction updatePlayer () {\n\n    if (cursor.x + cursor.y \u003e 1200) {\n        player.moveTo(cursor); // 角色跟著滑鼠移動\n    }\n\n    if (cursor.isDown) {\n        if (ball.hidden) //createSound('shoot.mp3');\n        player.costumeId = 1; //瞄準\n        ball.hidden = false;\n        ball.moveTo(player);\n    } else {\n        player.costumeId = 0; //放下\n        ball.move(-20, -20);\n    }\n}\n\n// 更新敵人雪球\nfunction updateBall (b) {\n    b.move(10, 10); // 朝右下移動\n    if (b.x \u003e 1200 || b.y \u003e 900) {\n        b.destroy();\n    }\n\n    // 如果雪球丟到玩家\n    if (b.touched(player)) {\n        b.destroy();\n        player.costumeId = 2;\n        stop();\n    }\n}\n\n// 檢查遊戲是否結束\nfunction checkIsGameover () {\n    let count = 0; // 死亡的敵人數量\n}\n\n// 該關卡獲勝\nfunction win () {\n    level.hidden = false; // 顯示關卡開始圖\n    level.costumeId += 1; // 切換下一張造型\n    if (level.costumeId == 12) gameover(); // 最高等級就結束遊戲\n    level.y = -450;\n}\n\n// 遊戲失敗\nfunction gameover () {\n    player.costumeId = 2; // 玩家切換倒地造型\n    ranks.hidden = false; // 顯示軍階圖\n    ranks.costumeId = level.costumeId; // 設定軍階\n    ranks.y = -450;\n}\n\n//  敵人創造雪球\nfunction createBall (x, y) {\n    let ball = createSprite('ball.png');\n    ball.moveTo(x, y);\n    balls.push(ball);\n}\n\nforever(gameloop); // 不斷執行遊戲迴圈\nlevel.on('click', startLevel); // 點擊等級圖開始關卡\nstartLevel();\n\n","created_at":"2021-12-20T15:38:09.712+08:00","updated_at":"2021-12-24T15:42:48.236+08:00","name":"雪球大戰（預設版）","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/328959/b230fa3bcc0fafe3f75ee57f07ce202f.jpg"},"parent_id":326069,"plugin":"Game.set({width: 1200, height: 900})","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":172,"hashid":"wdks46gd2","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}