piano | JavaScript 程式專案 | 橘蘋學習平台

{"id":31625,"student_id":3339,"content":"setBackdrop(\"white\");\r\nvar pen = pen;\r\nvar clock = 0;\r\nvar score = 0;\r\nvar combo = 0;\r\nvar count = 0;\r\nvar keypress = [0, 0, 0, 0];\r\nvar circles = [];\r\nfor (var i = 0; i \u003c 4; i++) {\r\n    var circle = createSprite(\"oval.png\");\r\n    circle.x = 175 + i*100;\r\n    circle.y = 350;\r\n    circle.scale = 0.35;\r\n    circles.push(circle);\r\n}\r\nforever(function() {\r\n    for (var i = 0; i \u003c 5; i++) {\r\n        pen.drawLine(125+i*100, 0, 125+i*100, 480);\r\n        keypress[i] = 0;\r\n    }\r\n    if (key.left) {\r\n        keypress[0] = 1;\r\n    } else if (key.up) {\r\n        keypress[1] = 1;\r\n    } else if (key.right) {\r\n        keypress[2] = 1;\r\n    } else if (key.down) {\r\n        keypress[3] = 1;\r\n    }\r\n    print(score);\r\n    clock++;\r\n    if (clock%(100 - combo*10) !== 0) return;\r\n    create();\r\n});\r\nfunction create() {\r\n    var side = Math.floor(Math.random()*4);\r\n    var note = createSprite(\"arrow.png\");\r\n    note.side = side;\r\n    note.direction = side * 90;\r\n    note.scale = 0.7;\r\n    note.x = 175 + side * 100;\r\n    note.y = -20;\r\n    note.forever(function() {\r\n        note.y += 3;\r\n        if (note.touched(circles[side]) \u0026\u0026 keypress[side]) {\r\n            count++;\r\n            if(combo \u003c 8){\r\n            combo++;\r\n            }\r\n            score += combo;\r\n            note.destroy();\r\n            keypress[side] = 0;\r\n        }\r\n        if (note.y \u003e 480) {\r\n            score -= 100;\r\n            combo = 0;\r\n            note.destroy();\r\n        }\r\n    });\r\n}\r\n","created_at":"2018-06-14T14:26:19.077+08:00","updated_at":"2019-10-28T00:03:50.043+08:00","name":"piano","language":"javascript","screenshot":{"url":"https://cdn8.koding.school/uploads/project/screenshot/31625/76c50ecc696334384d9c761b90eb0bde.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":374,"hashid":"d5msn2pm","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}