火箭降落 | JavaScript 程式專案

{"id":12222,"student_id":168,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar vx = 0\nvar vy = 0\nvar fuel = 500\n\nrocket.moveTo(50,50)\nrocket.direction = 0\nplatform.moveTo(530,400)\n\nforever(function() {\n        vy += 0.06\n        rocket.x += vx\n        rocket.direction = vx * 10\n        rocket.y += vy\n    if (fuel\u003e0) {\n        if (key.up) {\n            vy -= 0.1\n            fuel -= 1\n        }   \n\n        if (key.right) {\n            vx += 0.1\n            fuel -= 1\n        }\n\n        if (key.left) {\n            vx -= 0.1\n            fuel -= 1\n        }\n    }\n    if (rocket.touched(platform)){\n        if (vx \u003e 1.0) {\n            rocket.costumeId = 1\n        }\n        if (vy \u003e 1.0) {\n            rocket.costumeId = 1\n        }\n        stop();\n    }\n    if (rocket.x \u003c 0){\n        rocket.costumeId = 1\n        stop();\n    }\n    if (rocket.x \u003e 640){\n        rocket.costumeId = 1\n        stop();\n    }\n    if (rocket.y \u003c 0){\n        rocket.costumeId = 1\n        stop();\n    }\n    if (rocket.y \u003e 480){\n        rocket.costumeId = 1\n        stop();\n    }\n        print(fuel,30,30,\"red\",30)\n});","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2021-09-20T15:42:15.130+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/12222/e6484907cc781147b534abedf3366e17.jpg"},"parent_id":10697,"plugin":"var fire = createSprite(\"fire.png\");\nfire.scale = 0.7;\nforever(function() {\n    if(window.rocket \u0026\u0026 window.platform) {\n        fire.x = rocket.x;\n        fire.y = rocket.y;\n        fire.direction = rocket.direction - 180;\n        fire.stepForward(65);\n        fire.direction = rocket.direction;\n        if(window.rocket \u0026\u0026 (key.up || key.left || key.right) \u0026\u0026 window.fuel\u003e0) {\n            fire.hidden = false;\n        } else {\n            fire.hidden = true;\n        }\n        if(rocket.touched(platform)) {\n            // fire.hidden = true;\n        }\n    }\n});","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":69,"hashid":"rdvs6zkp","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}