太空訓練_概念版副本 | JavaScript 程式專案

{"id":116395,"student_id":10,"content":"setBackdrop('black');\nsound.play('bgm.mp3', true);\nvar ship = createSprite(\"ship.png\");\nvar food = createSprite(\"food.png\");\nfood.x = 50 + Math.random() * 540;\nfood.y = 50 + Math.random() * 380;\nfood.direction = Math.random() * 3\nship.layer = 1;\n\nvar shadows = [];\nvar bullets = [];\nvar score = 0;\nvar clock = 0;\n\nforever(function () {\n    var speed = ship.distanceTo(cursor)/20;\n    ship.toward(cursor);\n    ship.stepForward(speed);\n    \n    food.stepForward(3);\n    food.bounceEdge();\n\n    clock ++;\n    if (clock%2 == 0) {\n        var bullet = createSprite('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        if (bullets[i].distanceTo(320, 240) \u003e 500) {\n            bullets[i].destroy();\n        }\n        bullets[i].stepForward(2);\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    if (ship.touched(bullets)) {\n        stop();\n    }\n    if (ship.touched(food)) {\n        food.x = 50 + Math.random() * 540;\n        food.y = 50 + Math.random() * 380;\n        food.direction = Math.random() * 360;\n        score += 1;\n        sound.play('effect.wav');\n    }\n    print(score, 10, 10, '#21ffff', 20);\n});","created_at":"2019-12-27T18:44:08.920+08:00","updated_at":"2020-02-17T12:35:16.182+08:00","name":"太空訓練_概念版 副本","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/116395/2c806826d23248fff90fddbf3495c1ee.jpg"},"parent_id":7311,"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":[],"is_featured":false,"views":253,"hashid":"rdvsrjq5","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}

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