雪球大戰（完整版） | JavaScript 程式專案

{"id":512565,"student_id":2589,"content":"setBackdrop('bg.png');\nlet player = createSprite('r_0.png', 'r_1.png', 'r_2.png'); //玩家\nlet ball = createSprite('ball.png'); //玩家雪球\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 enemies = []; //存放敵人角色\nlet balls = []; //存放敵人雪球\nlet life = 3; //玩家血量\nlet steps = 200; //進場步數\n\nlevel.layer = 1000;\nranks.layer = 1000;\nplayer.layer = 999;\nball.layer = 998;\nranks.hidden = true;\nball.hidden = true;\n\n// 創造 36 個敵人\nfor (let i = 0; i \u003c 36; i++) {\n    let e = createSprite('g_0.png', 'g_1.png', 'g_2.png', 'g_3.png', 'g_4.png', 'g_5.png', 'g_6.png');\n    e.rotationStyle = 'fixed';\n    enemies.push(e);\n}\n\n// 開始新的關卡\nfunction startLevel () {\n    life = 3;\n    steps = 200;\n    ball.hidden = true;\n    level.hidden = true;\n    for (let i = 0; i \u003c 36; i++) {\n        let e = enemies[i];\n        e.x = Math.random() * 450 - 600;\n        e.y = Math.random() * 450 - 600;\n        e.costumeId = 0; //恢復造型\n        e.direction = Math.floor(Math.random() * 4) * 90 + 45; //設定敵人移動方向\n        e.timer = Math.floor(Math.random() * 180) + 180; //設定敵人計時器\n        e.hidden = i \u003e= level.costumeId * 3 + 3; //根據關卡顯示敵人數量\n    }\n}\n\n// 遊戲迴圈\nfunction gameloop () {\n    // 如果遊戲開始圖和軍階圖隱藏，才會更新角色\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        steps -= 1;\n    }\n    if (level.y \u003c 450) level.y += 20; //向下滑動\n    if (ranks.y \u003c 450) ranks.y += 20; //向下滑動\n}\n\n// 更新玩家\nfunction updatePlayer () {\n    if (cursor.x + cursor.y \u003e 1200) {\n        player.moveTo(cursor);\n    }\n\n    if (cursor.isDown) {\n        player.costumeId = 1;\n        ball.moveTo(player);\n        ball.hidden = false;\n    } else {\n        player.costumeId = 0;\n        ball.move(-20, -20);\n    }\n}\n\n// 更新敵人\nfunction updateEnemy (e) {\n\n    if (steps \u003e 0 \u0026\u0026 e.costumeId \u003c 5) {\n        e.move(3, 3);\n        e.costumeId = Math.floor(steps / 10) % 2;\n    } else {\n        e.timer -= 1;\n    }\n\n    if (steps \u003c= 0 \u0026\u0026 e.timer \u003e 180) {\n        e.stepForward(3);\n        e.costumeId = Math.floor(e.timer / 10) % 2; // 走路\n    }\n    if (e.timer == 180) {\n        e.costumeId = 2; // 準備雪球\n    }\n    if (e.timer == 120) {\n        e.costumeId = 3; // 瞄準\n    }\n    if (e.timer == 60 \u0026\u0026 e.hidden == false) {\n        e.costumeId = 4; // 丟出雪球\n        createBall(e.x, e.y);\n    }\n    if (e.timer == 0) {\n        e.timer = Math.floor(Math.random() * 200) + 180; //設定計時器\n        e.direction = Math.floor(Math.random() * 4) * 90 + 45; //隨機方向\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    if (e.touched(ball) \u0026\u0026 e.costumeId \u003c 5) {\n        ball.hidden = true;\n        e.timer = -1;\n        e.costumeId = 5;\n    }\n    if (e.timer == -5) {\n        e.costumeId = 6;\n    }\n\n    e.layer = e.y; // 角色越下面圖層越上層\n    if (e.costumeId == 6) e.layer -= 200; // 降低暈倒的叩叮圖層\n}\n\n// 更新敵人雪球\nfunction updateBall (b) {\n    b.move(10, 10);\n    if (b.x \u003e 1200 || b.y \u003e 900) {\n        b.destroy();\n    }\n    if (b.touched(player)) {\n        b.destroy();\n        life -= 1;\n    }\n}\n\n// 檢查遊戲是否結束\nfunction checkIsGameover () {\n    let count = 0;\n    for (let i = 0; i \u003c 36; i++) {\n        if (enemies[i].hidden || enemies[i].costumeId == 6) {\n            count += 1;\n        }\n    }\n    if (count == 36) win(); //關卡獲勝\n    if (life \u003c= 0) gameover(); //遊戲結束\n}\n\n// 該關卡獲勝\nfunction win () {\n    level.costumeId += 1; //關卡等級切換下個造型\n    level.hidden = false; //顯使關卡等級\n    level.y = -450; //初始化滑入位置\n    if (level.costumeId == 12) gameover(); // 最高等級就結束遊戲\n}\n\n// 遊戲失敗\nfunction gameover () {\n    player.costumeId = 2; //切換倒地造型\n    ranks.hidden = false; //顯示軍階圖\n    ranks.costumeId = level.costumeId; //根據等級切換軍階\n    ranks.y = -450; //初始化滑入位置\n}\n\n// 創造敵人雪球\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","created_at":"2023-03-31T11:07:03.318+08:00","updated_at":"2023-03-31T14:44:07.231+08:00","name":"雪球大戰（完整版）","language":"javascript","screenshot":{"url":"https://cdn8.koding.school/uploads/project/screenshot/512565/ed11d505e20eeec9706955833cf55bd6.jpg"},"parent_id":2,"plugin":"Game.set({width: 1200, height: 900})","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":79,"hashid":"4y3szqw9n","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}