L5_瘋狂賽車_除錯範例 | JavaScript 程式專案

{"id":183004,"student_id":10,"content":"/**\n * 情境：老師我的程式無法執行...\n * 提示：當自己花過多時間在排除問題時，可以試著用終極註解法\n */\n\nvar speed = 0; //車速\nvar startTime = Date.now(); //開始時間\nvar round = 0; //圈數\nvar target = 2; //目標物\n\nforever(function(){\n    print((Date.now()-startTime)/1000 + 's', 10, 10, 'red', 20);\n    print(Math.floor(speed*10) + 'km/h', 10, 50, 'red', 20);\n    print(round + '/2', 10, 90, 'red', 20);\n    \n    //當玩家按下右鍵\n    if(key.right) {\n        car.direction += 3; //車子右轉\n        speed -= 0.11; \n    }\n    \n    //當玩家按下左鍵\n    if(key.left) {\n        car.direction -= 3; //車子左轉\n        speed -= 0.11;\n    }\n    \n    //車速上限\n    if(speed \u003c 9) {\n        speed += 0.08;\n    }\n    \n    //當車子撞到邊界時減速\n    if (car.touched(border)) {\n        speed -= 0.13;\n    }\n    \n    //車子最低怠速\n    if (speed \u003c 0.3） {\n        speed = 0.3; \n    }\n    \n    //相對移動\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});\n","created_at":"2020-08-19T15:44:09.566+08:00","updated_at":"2022-11-02T15:10:03.084+08:00","name":"L5_瘋狂賽車_除錯範例","language":"javascript","screenshot":{"url":"https://cdn6.koding.school/uploads/project/screenshot/183004/b230fa3bcc0fafe3f75ee57f07ce202f.jpg"},"parent_id":73435,"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":252,"hashid":"zpes9vm4","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}