滾動的輪胎 | JavaScript 程式專案

{"id":7797,"student_id":1473,"content":"setBackdrop(\"#000000\");\nvar wheel=createSprite(\"wheel.png\");\nwheel.x=350;\nwheel.y=350;\nwheel.vx=0;\nwheel.vy=0;\nwheel.scale=0.17;\nwheel.falling=false;\nwheel.jumpable=true;\nvar blocks=[];\nvar score=0;\nvar startblock=createSprite(\"startblock.png\");\nstartblock.x=300;//300是startblock的一半寬度\nstartblock.y=450;//450是測試的結果\nvar clock=-1;\nforever(function(){\n    clock++;\n    if(!wheel.falling){\n        wheel.direction+=7;\n    }\n    if(clock%60==0){\n        var block=createSprite(\"block.png\");\n        block.x=750-Math.random()*50;\n        if(clock==0){\n            block.y=300+Math.random()*50;\n        }else{\n            block.y=150+Math.random()*300;\n        }\n        blocks.push(block);\n    }\n    for(var i=0;i\u003cblocks.length;i++){\n        blocks[i].x-=5;\n    }\n    if(blocks[0].x+60\u003c=0){//60是block的一半寬度\n        blocks[0].destroy();\n        blocks.splice(0,1);\n        score++;\n    }\n    startblock.x-=5;\n    if(startblock.x+300\u003c=0){//300是startblock的一半寬度\n        startblock.destroy();\n    }\n    if(wheel.falling){\n        wheel.vy+=0.5;\n        wheel.y+=wheel.vy;\n        if(wheel.vx\u003e0){\n            wheel.vx--;\n            wheel.x+=wheel.vx;\n        }\n    }\n    wheel.falling=true;\n    if(wheel.y\u003c30){\n        wheel.vy=0;\n        wheel.y=30;\n    }\n    if(wheel.x\u003e640){\n        wheel.vx=0;\n        wheel.x=640;\n    }\n    if(wheel.y\u003e480||wheel.x\u003c25){\n        createSprite(\"black.png\");\n        print(\"Game over!\",160,200,\"white\",60);\n        print(\"final score: \"+score,270,300,\"white\");\n        stop();\n    }else{\n        print(score,20,20,\"white\");\n    }\n});\nwheel.when(\"touch\",blocks,function(block){\n    wheel.jumpable=false;\n    wheel.vx=0;\n    if(wheel.y\u003c=block.y+130\u0026\u0026wheel.x\u003eblock.x-60\u0026\u0026wheel.y\u003eblock.y){//130是block的一半高度加wheel的半徑後取保險的結果\n                                                                 //而60是block的一半寬度\n        //bottom\n        wheel.falling=true;\n        wheel.vy=0;\n        wheel.y=block.y+60;\n    }else if(wheel.x\u003e=block.x-90\u0026\u0026wheel.y\u003eblock.y-100){//90是block的一半寬度加wheel的半徑後取保險的結果\n                                                      //而100是block的一半高度\n        //left\n        wheel.x=block.x-90;\n        wheel.falling=false;\n        wheel.y-=8;\n        wheel.x++;\n    }else{\n        //top\n        if(wheel.x-5\u003eblock.x-50){\n            wheel.jumpable=true;\n        }\n        wheel.vy=0;\n        wheel.falling=false;\n        wheel.y=block.y-125;//125是block的一半高度加wheel的半徑後取保險的結果\n        }\n    }\n);\nwheel.when(\"touch\",startblock,function(){\n    wheel.vy=0;\n    wheel.falling=false;\n});\nwhen(\"keydown\", \"right\", function(){\n\tif(wheel.jumpable\u0026\u0026!wheel.falling){\n        wheel.falling=true;\n        wheel.vy=-10;\n        wheel.vx=15;\n        wheel.jumpable=false;\n    }\n});\nwhen(\"keydown\", \"up\", function(){\n    if(wheel.jumpable\u0026\u0026!wheel.falling){\n        wheel.falling=true;\n        wheel.vy=-15;\n        wheel.jumpable=false;\n    }\n});","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2019-11-01T20:03:07.065+08:00","name":"滾動的輪胎","language":"javascript","screenshot":{"url":"https://cdn0.koding.school/uploads/project/screenshot/7797/d93e205bef7b1b1f093fbf25e003c7da.jpg"},"parent_id":2,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":513,"hashid":"kdms5pg","is_content_changed":null,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}