急速賽車 | JavaScript 程式專案

{"id":16244,"student_id":123,"content":"var speed = 0;\nvar round = 0;\nvar target = 2;\nvar startTime = Date.now();\n\nforever(function(){\n    print((Date.now()-startTime)/1000 + \"s\", 10, 10, \"red\", 20);\n    print(Date.now(), 10, 130, 20);\n    print(Math.floor(speed * 10) + \"km/h\", 10, 50, \"red\", 20);\n    print(round + \"/2\", 10, 90, \"red\", 20);\n    //讓賽車左右旋轉\n    if(key.right) {\n        car.direction += 3;\n        speed -= 0.11;\n    }\n    if(key.left) {\n        car.direction -= 3;\n        speed -= 0.11;\n    }\n    //讓賽車一直前進\n    car.stepForward(speed);\n    //加速\n    if(speed \u003c 0.3) {\n        speed = 0.3;\n    }\n    if(speed \u003c 9) {\n        speed += 8;\n    }\n    //速度變慢\n    if(car.touched(border)) {\n        speed -= 0.13;\n    }   \n    //相對運動\n    border.direction = car.direction - 180;\n    border.stepForward(speed);\n    road.direction = car.direction - 180;\n    road.stepForward(speed);\n    check1.direction = car.direction - 180;\n    check1.stepForward(speed);\n    check2.direction = car.direction - 180;\n    check2.stepForward(speed);\n    //判斷起點和終點\n    if(car.touched(check1) \u0026\u0026 target == 1) {\n        target = 2;\n        round += 1;\n    }\n    if(car.touched(check2) \u0026\u0026 target == 2) {\n        target = 1\n    }\n    if(round == 2) {\n        stop();\n    }\n});","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-07T22:55:42.051+08:00","name":"急速賽車","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/16244/caaa35b7552d64f04999a747ea44ecf5.jpg"},"parent_id":9146,"plugin":"var road = createSprite(\"road.png\");\nroad.rotationStyle = 'fixed';\nvar check1 = createSprite(\"check.png\");\ncheck1.x = -1200;\ncheck1.y = -400;\ncheck1.rotationStyle = \"fixed\";\nvar check2 = createSprite(\"check.png\");\ncheck2.x = 1130;\ncheck2.y = 300;\ncheck2.rotationStyle = \"fixed\";\nvar border= createSprite(\"border.png\");\nborder.rotationStyle = 'fixed';\nvar car = createSprite(\"car.png\");\ncar.scale = 0.4;\ncar.direction = 180;\n\nvar offsetX = 1500;\nvar offsetY = 650;\n\nroad.x += offsetX;\nroad.y += offsetY;\nborder.x += offsetX;\nborder.y += offsetY;\ncheck1.x += offsetX;\ncheck1.y += offsetY;\ncheck2.x += offsetX;\ncheck2.y += offsetY;","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":81,"hashid":"jzmsev5p","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}