火箭降落副本 | JavaScript 程式專案

{"id":43866,"student_id":1991,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\", \"bomb.png\"]);\nrocket.costumeId = 0;\nvar vx = 0;\nvar vy = 0;\nvar fuel = 500;\nplatform.x = 500;\nplatform.y = 450;\nrocket.x = 50;\nrocket.y = 50;\nrocket.direction = 0;\nforever(function() {\n    vy += 0.06;\n    rocket.x += vx;\n    rocket.y += vy;\n    if (fuel \u003e 0) {\n        if (key.up) {\n            vy -= 0.1;\n            fuel -= 1;\n        }\n        if (key.right) {\n            vx += 0.1;\n            fuel -= 1;\n            rocket.direction += 0.99\n        }\n        if (key.left) {\n            vx -= 0.1;\n            fuel -= 1;\n            rocket.direction -= 0.99\n        }\n        print(fuel, 30, 30, 'red', 30);\n        if (rocket.touched(platform)) {\n        if (rocket.vy \u003e 0.6)\n            rocket.costumeId = 1;\n            stop();\n        }\n    }\n    });","created_at":"2018-10-01T09:25:12.426+08:00","updated_at":"2019-11-07T21:17:17.948+08:00","name":"火箭降落 副本","language":"javascript","screenshot":{"url":"https://cdn1.koding.school/uploads/project/screenshot/43866/6572c2cb737a579c3fabb1159860acb2.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":66,"hashid":"qmdsv5r6","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}