躲避飛彈.jsa | JavaScript 程式專案

{"id":4726,"student_id":888,"content":"DB.variables.highscore = DB.variables.highscore || 0;\nDB.variables.highscoreUser = DB.variables.highscoreUser || \"\";\n\nsetBackdrop(\"#8becff\");\nvar plane = createSprite({costumes:[\"plane.png\",\"boom.png\"]});\nplane.direction = \nplane.scale = 0.3;\nplane.layer = 999;\nvar missiles = [];\nvar clouds = [];\nvar startTime = new Date();\n\nwhen(\"holding\", \"right\", function(){\n\tplane.direction += 3;\n});\nwhen(\"holding\", \"left\", function(){\n\tplane.direction -= 3;\n});\nplane.forever(function(){\n\tthis.stepForward(3);\n    if(plane.touched(missiles)){\n        plane.costumeId = 1;\n        var score = ((new Date())-startTime)/1000;\n        if(score\u003eDB.variables.highscore){\n            DB.variables.set(\"highscore\", ((new Date())-startTime)/1000);\n            DB.variables.set(\"highscoreUser\", USER_NAME);\n        }\n        setTimeout(function(){stop();},1000);\n    }\n});\nfor(var i=0; i\u003c100; i++){\n\tvar cloud = createSprite(\"cloud.png\");\n    cloud.scale = 0.2+Math.random()*0.2;\n    cloud.x = Math.random()*6400-3200;\n    cloud.y = Math.random()*4800-2400;\n    clouds.push(cloud);\n}\n\nforever(function(){\n    var i=0;\n    for(i=0; i\u003cmissiles.length; i++){\n        missiles[i].x = missiles[i].x-plane.x+320;\n        missiles[i].y = missiles[i].y-plane.y+240;\n    }\n    for(i=0; i\u003cclouds.length; i++){\n        clouds[i].x = clouds[i].x-plane.x+320;\n        clouds[i].y = clouds[i].y-plane.y+240;\n    }\n    plane.x = 320;\n    plane.y = 240;\n    var now = new Date();\n    print( (now-startTime)/1000 );\n    print( DB.variables.highscore+\" (\"+DB.variables.highscoreUser+\")\", 20, 460 );\n});\n\nsetInterval(function(){\n    missileX = Math.random()*960-160;\n    missileY = Math.random()*720-120;\n    if(missileX\u003e0\u0026\u0026missileX\u003c620\u0026\u0026missileY\u003e0\u0026\u0026missileY\u003c480){\n        return;\n    }\n    var missile = createSprite({costumes:[\"missile.png\",\"boom.png\"]});\n    missile.x = missileX;\n    missile.y = missileY;\n    missile.scale = 0.1;\n    missile.fuel = 800;\n    missile.forever(function(){\n        var originalDirection = this.direction;\n        this.toward(plane);\n        if( Math.abs(this.direction - originalDirection) \u003c 180 ){\n            if(this.direction \u003e originalDirection){\n                this.direction = originalDirection+1;\n            } else {\n                this.direction = originalDirection-1;\n            }\n        } else {\n            if(this.direction \u003e originalDirection){\n                this.direction = originalDirection-1;\n            } else {\n                this.direction = originalDirection+1;\n            }\n        }\n        this.stepForward(4);\n        this.fuel--;\n        if(this.touched(missiles)\u0026\u0026this.fuel\u003e3){\n            this.fuel = 3;\n        }\n        if(this.fuel\u003c=3){\n            this.costumeId = 1;\n        }\n        if(this.fuel\u003c=0){\n            this.destroy();   \n        }\n    });\n    missiles.push(missile);\n}, 1000);","created_at":"2017-03-01T20:52:04.729+08:00","updated_at":"2020-09-25T21:07:39.082+08:00","name":"躲避飛彈.jsa","language":"javascript","screenshot":{"url":"https://cdn4.koding.school/uploads/project/screenshot/4726/b90d4d060fccdc8ae10d32e5ef453af9.jpg"},"parent_id":2,"plugin":"","description":"用左右鍵控制飛機左右轉向，甩掉不斷追擊的飛彈吧！","note":null,"status":"public","like_student_ids":[149,1924,2010,1933,1934,2002,1936,1874,1935,109,3693,12205],"is_featured":true,"views":2950,"hashid":"ej9spm2","is_content_changed":null,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}