太空訓練_概念版 | JavaScript 程式專案

{"id":7311,"student_id":10,"content":"setBackdrop('black');\nvar ship = createSprite(\"ship.png\");\nvar food = createSprite(\"food.png\", \"food.png\");\nfood.x = 50 + Math.random() * 540;\nfood.y = 50 + Math.random() * 380;\nship.layer = 1;\n\nvar shadows = [];\nvar bullets = [];\nvar score = 0;\nvar clock = 0;\nvar life = 5;\nvar freeze = false;\nvar end = 0;\n\nsound.play('bgm.mp3', true);\n\nforever(loop)\n\nfunction loop () {\n    var speed = ship.distanceTo(cursor)/20;\n    ship.toward(cursor);\n    ship.stepForward(speed);\n\n    clock++;\n    if (clock%8 == 0 || (clock \u003e end \u0026\u0026 clock %2 == 0)) {\n        var bullet = createSprite('bullet.png','bullet.png');\n        bullet.direction = Math.random()*360;\n        bullet.stepForward(500);\n        bullet.direction = Math.random()*360;;\n        bullets.push(bullet);\n    }\n    if (clock%5 == 0) {\n        var shadow = createSprite('flame.png');\n        shadow.direction = ship.direction;\n        shadow.moveTo(ship);\n        shadows.push(shadow);\n    }\n    for (var i = 0; i \u003c bullets.length; i++) {\n        var b = bullets[i];\n        if (clock \u003c end) {\n            b.stepForward(0.5);\n            b.costumeId = 1;\n        } else {\n            b.stepForward(2);\n            b.costumeId = 0;\n        }\n        if (b.distanceTo(320, 240) \u003e 500) {\n            b.destroy();\n        }\n        if (b.touched(ship)) {\n            b.destroy();\n            life--;\n        }\n    }\n    if (clock % 600 == 0 \u0026\u0026 life \u003c 5) {\n        life++;\n    }\n    if (life \u003c= 0) {\n        stop();\n    }\n    if (ship.touched(food)) {\n        food.x = 50 + Math.random() * 540;\n        food.y = 50 + Math.random() * 380;\n        score += 1;\n        if (score % 10 == 0) {\n            end = clock + 600;\n        }\n        sound.play('effect.wav');\n    }\n    for (var i = 0; i \u003c shadows.length; i++) {\n        shadows[i].opacity -= 0.01;\n        shadows[i].scale -= 0.01;\n        shadows[i].direction += 2;\n        if (shadows[i].opacity \u003c 0) {\n            shadows[i].destroy();\n        }\n    }\n    \n    print(score, 10, 10, '#21ffff', 20);\n    print(life, 10, 40, '#21ffff', 20);\n};","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2020-03-23T23:05:42.593+08:00","name":"太空訓練_概念版","language":"javascript","screenshot":{"url":"https://cdn7.koding.school/uploads/project/screenshot/7311/a08ca7e7459648c56911dc39a68650ae.jpg"},"parent_id":7217,"plugin":"","description":"上、左、右推進火箭\n在料用盡前成功火箭降落在平台上。","note":null,"status":"public","like_student_ids":[172,109,74,3206,4689,4688,4695,4690,37,255,4675,2293,2004,1902,1911],"is_featured":false,"views":2618,"hashid":"vngs24r","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}