火箭降落副本 | JavaScript 程式專案

{"id":84843,"student_id":3325,"content":"setBackdrop('bg.jpg');\nvar platform = createSprite(\"platform.png\");\nvar rocket = createSprite([\"rocket.png\", \"bomb.png\"]);\nvar fuel = 500\nvar vy = 0;\nvar vx = 0;\n\nrocket.x = 50\nrocket.y = 50\nrocket.direction = 0\nplatform.x = 500\nplatform.y = 450\nforever(function() {\n    rocket.y += vy;\n    rocket.x += vx;\n    rocket.direction=vx*10\n    if (rocket.touched(platform)) {\n        if (vy \u003e 1) {\n            rocket.costumeId = 1;\n        }\n        if (rocket.direction \u003e 6 || rocket.direction\u003c-6) {\n            rocket.costumeId = 1;\n        }\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        }\n        if (key.left) {\n            vx = 0.1\n            fuel -= 1\n        }\n        vy += 0.06\n        print(\"fuel:\"+fuel, 10, 10, \"red\", 20)\n        rocket.y += vy\n    });","created_at":"2019-07-27T16:23:32.441+08:00","updated_at":"2019-08-28T05:12:08.227+08:00","name":"火箭降落 副本","language":"javascript","screenshot":{"url":"https://cdn3.koding.school/uploads/project/screenshot/84843/89edcce60b8890776f43b51e69f48ea4.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":157,"hashid":"2pdswymy","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}