太空訓練副本 | JavaScript 程式專案

{"id":44584,"student_id":1661,"content":"setBackdrop('#000000');\nvar ship = createSprite(\"ship.png\");\nvar bullets = [];\nvar clock = 0;\n\n//創造食物\nvar food = createSprite(\"food.png\");\nfood.x = Math.random()*440+100; //食物的X設定為100~540之間的隨機數\nfood.y = Math.random()*280+100; //食物的Y設定為100~380之間的隨機數\n\nforever(function () {\n    clock += 1; //迴圈每執行一次，clock增加1\n    \n    //當迴圈每執行三次，會產生一顆子彈，並儲存到陣列中\n    if(clock%3 == 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    \n    //起始值為陣列中的第一個子彈(bullets[0])\n    //i不可以超過陣列長度(子彈個數)\n    //i每次執行增加1(找到下一顆子彈)\n    for(var i = 0; i \u003c bullets.length; i++){\n        if(bullets[i].touched(ship)){\n            stop();\n        }\n        bullets[i].stepForward(5);\n    }\n    \n    //如果飛船碰到食物，食物會隨機移動到畫面的某處\n    //分數增加1\n    if(ship.touched(food)){\n        food.x = Math.random()*640;\n        food.y = Math.random()*480;\n        score += 1;\n    }\n    \n    \n    ship.toward(cursor);\n    \n    //如果飛船沒有碰到滑鼠才會前進\n    if(ship.touched(cursor) == false) {\n        ship.stepForward(3);\n    }\n\n    \n    //印出分數\n    print(score,30,30,\"white\",30);\n});","created_at":"2018-10-07T08:37:51.889+08:00","updated_at":"2019-11-11T11:58:12.140+08:00","name":"太空訓練 副本","language":"javascript","screenshot":{"url":"https://cdn7.koding.school/uploads/project/screenshot/44584/89edcce60b8890776f43b51e69f48ea4.jpg"},"parent_id":10707,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":106,"hashid":"rdvsdw46","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}