火箭降落 | JavaScript 程式專案

{"id":14118,"student_id":283,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar vy = 0;\nvar vx = 0;\nvar fuel = 500;\n\nrocket.x = 50;\nrocket.y = 50;\nrocket.direction = 0;\nplatform.x = 500;\nplatform.y = 440;\n\n\n\nforever(function() {\n    vy += 0.05;\n    rocket.y = rocket.y + vy;\n    rocket.x = rocket.x + vx;\n    if(fuel \u003e0){\n    if(key.up) {\n        vy -= 0.5;\n        fuel -= 1;\n    }\n    if(key.right){\n        rocket.direction += 1;\n        vx += 0.1;\n        fuel -= 1;\n    }\n     if(key.left){\n        rocket.direction -= 1;\n        vx -= 0.1;\n        fuel -= 1;\n    }\n    if(rocket.touched(platform)){\n        if(vy \u003e0.6) {\n            rocket.costumeId = 1;\n        }\n         if(vx \u003e0.6) {\n            rocket.costumeId = 1;\n        }\n        \n        stop();\n    }\n\n    if(rocket.x \u003c0 || rocket.x \u003e640 || rocket.y \u003c0 || rocket.y \u003e480){\n            rocket.costumeId = 1;\n            stop();\n        }\n\n\n    print(\"燃料 : \" + fuel, 20 ,20 , \"white\" , 25);\n    // print(vx, 40, 20);\n    print(vy, 300, 20);\n}\n});\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-10-23T00:28:49.569+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/14118/25090309f574ebfe25824d369319e3cb.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":89,"hashid":"6rps9k8e","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}