火箭降落 | JavaScript 程式專案

{"id":13859,"student_id":173,"content":"setBackdrop('bg.jpg');\n\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar fuel = 500;\nvar vx = 0;\nvar vy = 0;\nrocket.x = 50;\nrocket.y = 50;\nplatform.x = 550;\nplatform.y = 450;\nrocket.direction = 0;\nforever(function() {\n   \n    rocket.direction = vx *5\n    print(\"fuel:\"+fuel, 10, 10, \"white\", 20);\n    rocket.x = rocket.x + vx;\n    rocket.y = rocket.y + vy;\n    vy += 0.06\n    if (key.up){\n        if (fuel \u003e 0){\n            fuel -= 1\n            vy -= 0.1;\n        }\n             }\n    if (key.right){\n        vx += 0.1\n    } \n    if (key.left){\n        vx -= 0.1\n    } \n    if( rocket.x \u003c 0 || rocket.x \u003e 640 || rocket.y \u003c 0 || rocket.y \u003e 480){\n        rocket.costumeId = 1\n        stop();\n    }\n    if (rocket.touched(platform)){\n        if (vy \u003e 0.6 || vx \u003e 0.6 || vx \u003c -0.6   ){\n            rocket.costumeId = 1\n        }\n        stop();\n    }\n});\n","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-09-03T02:59:47.145+08:00","name":"火箭降落","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/13859/dca1f8efc4e9449601bafa96f807f817.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":100,"hashid":"rdvs68ge","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}