火箭降落 Demo | JavaScript 程式專案

{"id":7297,"student_id":98,"content":"platform.y = 450;\r\nplatform.x = 500;\r\nrocket.y = 50;\r\nrocket.x = 50;\r\n\r\nvar vx = 0;\r\nvar vy = 0;\r\nvar fuel = 500;\r\n\r\nforever(function() {\r\n    if(rocket.touched(platform)) {\r\n        if(vy \u003e 0.8 || vx \u003e 0.6 || vx \u003c -0.6) {\r\n        \trocket.costumeId = 1;\r\n        }\r\n        stop();\r\n    }\r\n    if(fuel \u003e 0) {\r\n        if(key.up) {\r\n            vy -= 0.1;\r\n            fuel -= 1;\r\n        }\r\n        if(key.left) {\r\n            vx -= 0.1;\r\n            fuel -= 1;\r\n        }\r\n        if(Game.key.right) {\r\n            vx += 0.1;\r\n            fuel -= 1;\r\n        }\r\n    }\r\n    vy += 0.06;\r\n    rocket.y += vy;\r\n    rocket.x += vx;\r\n    rocket.direction = vx * 10;\r\n    print('fuel: ' + fuel, 10, 10, 'red', 20);\r\n});","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-10-10T23:38:10.525+08:00","name":"火箭降落 Demo","language":"javascript","screenshot":{"url":"https://cdn5.koding.school/uploads/project/screenshot/7297/da786cdddf9c9e70c6e3f0694aba919f.jpg"},"parent_id":7216,"plugin":"setBackdrop('bg.jpg');\n\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\",\"bomb.png\"]);\nvar fire = createSprite(\"fire.png\");\nfire.scale = 0.7;\nrocket.direction = 0;\n\nforever(function() {\n\tfire.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((key.up || key.left || key.right) \u0026\u0026 fuel\u003e0) {\n    \tfire.hidden = false;\n    } else {\n        fire.hidden = true;\n    }\n    if(rocket.touched(platform)) {\n        fire.hidden = true;\n    }\n});\n\n\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":135,"hashid":"gk4s42y","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}