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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 	}
  14. }<!DOCTYPE HTML>
  15. <html>
  16. <head>
  17. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  18. <title>Feed the Snake v 1.1 beta</title>
  19. <style>
  20. body
  21. {
  22.     background:#000;
  23.     color:#FFF;
  24. }
  25. canvas
  26. {
  27.     background:#FFF;
  28. }
  29. #controls
  30. {
  31.     position:absolute;
  32.     top:0;
  33.     right:0;
  34.     margin:10px;
  35. }
  36. </style>
  37. <script type="text/javascript">
  38. var snake = window.snake || {};
  39. function launchFullscreen(element) {
  40.   if(element.requestFullscreen) {
  41.     element.requestFullscreen();
  42.   } else if(element.mozRequestFullScreen) {
  43.     element.mozRequestFullScreen();
  44.   } else if(element.webkitRequestFullscreen) {
  45.     element.webkitRequestFullscreen();
  46.   } else if(element.msRequestFullscreen) {
  47.     element.msRequestFullscreen();
  48.   }
  49. }
  50. window.onload = function(){
  51.     document.addEventListener("fullscreenchange", function(){snake.game.adjust();});
  52.     document.addEventListener("webkitfullscreenchange", function(){snake.game.adjust();});
  53.     document.addEventListener("mozfullscreenchange", function(){snake.game.adjust();});
  54.     document.addEventListener("MSFullscreenChange", function(){snake.game.adjust();});
  55.  
  56.     snake.game = (function()
  57.     {
  58.         var canvas = document.getElementById('canvas');
  59.         var ctx = canvas.getContext('2d');
  60.         var status=false;
  61.         var score = 0;
  62.         var old_direction = 'right';
  63.         var direction = 'right';
  64.         var block = 10;
  65.         var score = 0;
  66.         var refresh_rate = 250;
  67.         var pos = [[5,1],[4,1],[3,1],[2,1],[1,1]];
  68.         var scoreboard = document.getElementById('scoreboard');
  69.         var control = document.getElementById('controls');
  70.         var keys = {
  71.             37 : 'left',
  72.             38 : 'up',
  73.             39 : 'right',
  74.             40 : 'down'
  75.             };
  76.         function adjust()
  77.         {
  78.             if (document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement )
  79.             {
  80.                 canvas.width=window.innerWidth;
  81.                 canvas.height=window.innerHeight;
  82.                 control.style.display='none';
  83.             }
  84.             else
  85.             {
  86.                 canvas.width=850;
  87.                 canvas.height=600;
  88.                 control.style.display='inline';
  89.             }
  90.         }
  91.         var food = [Math.round(Math.random(4)*(canvas.width - 10)), Math.round(Math.random(4)*(canvas.height - 10)),];
  92.         function todraw()
  93.         {
  94.             for(var i = 0; i < pos.length; i++)
  95.             {
  96.                 draw(pos[i]);
  97.             }
  98.         }
  99.         function giveLife()
  100.         {
  101.             var nextPosition = pos[0].slice();
  102.             switch(old_direction)
  103.             {
  104.                 case 'right':
  105.                     nextPosition[0] += 1;
  106.                     break;
  107.                 case 'left':
  108.                     nextPosition[0] -= 1;
  109.                     break;
  110.                 case 'up':
  111.                     nextPosition[1] -= 1;
  112.                     break;
  113.                 case 'down':
  114.                     nextPosition[1] += 1;
  115.                     break;    
  116.             }
  117.             pos.unshift(nextPosition);
  118.             pos.pop();
  119.         }
  120.         function grow()
  121.         {
  122.             var nextPosition = pos[0].slice();
  123.             switch(old_direction)
  124.             {
  125.                 case 'right':
  126.                     nextPosition[0] += 1;
  127.                     break;
  128.                 case 'left':
  129.                     nextPosition[0] -= 1;
  130.                     break;
  131.                 case 'up':
  132.                     nextPosition[1] -= 1;
  133.                     break;
  134.                 case 'down':
  135.                     nextPosition[1] += 1;
  136.                     break;    
  137.             }
  138.             pos.unshift(nextPosition);
  139.         }
  140.         function loop()
  141.         {
  142.             ctx.clearRect(0,0,canvas.width,canvas.height);
  143.             todraw();
  144.             giveLife();
  145.             feed();
  146.             if(is_catched(pos[0][0]*block,pos[0][1]*block,block,block,food[0],food[1],10,10))
  147.             {
  148.                 score += 10;
  149.                 createfood();
  150.                 scoreboard.innerHTML = score;
  151.                 grow();
  152.                 if(refresh_rate > 100)
  153.                 {
  154.                     refresh_rate -=5;
  155.                 }
  156.             }
  157.             snake.game.status = setTimeout(function() { loop(); },refresh_rate);
  158.         }
  159.         window.onkeydown = function(event){
  160.              direction = keys[event.keyCode];
  161.                 if(direction)
  162.                 {
  163.                     setWay(direction);
  164.                     event.preventDefault();
  165.                 }
  166.             };
  167.         function setWay(direction)
  168.         {
  169.             switch(direction)
  170.             {
  171.                 case 'left':
  172.                     if(old_direction!='right')
  173.                     {
  174.                         old_direction = direction;
  175.                     }
  176.                     break;
  177.                 case 'right':
  178.                     if(old_direction!='left')
  179.                     {
  180.                         old_direction = direction;
  181.                     }
  182.                     break;
  183.                 case 'up':
  184.                     if(old_direction!='down')
  185.                     {
  186.                         old_direction = direction;
  187.                     }
  188.                     break;
  189.                 case 'down':
  190.                     if(old_direction!='up')
  191.                     {
  192.                         old_direction = direction;
  193.                     }
  194.                     break;
  195.             }
  196.  
  197.         }
  198.         function feed()
  199.         {
  200.             ctx.beginPath();
  201.             ctx.fillStyle = "#ff0000";
  202.             ctx.fillRect(food[0],food[1],10,10);
  203.             ctx.fill();
  204.             ctx.closePath();
  205.         }
  206.         function createfood()
  207.         {
  208.             food = [Math.round(Math.random(4)*850), Math.round(Math.random(4)*600)];
  209.         }
  210.         function is_catched(ax,ay,awidth,aheight,bx,by,bwidth,bheight) {
  211.             return !(
  212.             ((ay + aheight) < (by)) ||
  213.             (ay > (by + bheight)) ||
  214.             ((ax + awidth) < bx) ||
  215.             (ax > (bx + bwidth))
  216.             );
  217.         }
  218.         function draw(pos)
  219.         {
  220.             var x = pos[0] * block;
  221.             var y = pos[1] * block;
  222.             if(x >= canvas.width || x <= 0 || y >= canvas.height || y<= 0)
  223.             {
  224.                     document.getElementById('pause').disabled='true';
  225.                     snake.game.status=false;
  226.                     ctx.clearRect(0,0,canvas.width,canvas.height);
  227.                     ctx.font='40px san-serif';
  228.                     ctx.fillText('Game Over',300,250);
  229.                     ctx.font = '20px san-serif';
  230.                     ctx.fillStyle='#000000';
  231.                     ctx.fillText('To Play again Refresh the page or click the Restarts button',200,300);
  232.                     throw ('Game Over');
  233.             }
  234.             else
  235.             {
  236.                 ctx.beginPath();
  237.                 ctx.fillStyle='#000000';
  238.                 ctx.fillRect(x,y,block,block);
  239.                 ctx.closePath();
  240.             }
  241.         }
  242.         function pause(elem)
  243.         {
  244.             if(snake.game.status)
  245.             {
  246.                 clearTimeout(snake.game.status);
  247.                 snake.game.status=false;
  248.                 elem.value='Play'
  249.             }
  250.             else
  251.             {
  252.                 loop();
  253.                 elem.value='Pause';
  254.             }
  255.         }
  256.         function begin()
  257.         {
  258.             loop();
  259.         }
  260.         function restart()
  261.         {
  262.             location.reload();
  263.         }
  264.         function start()
  265.         {
  266.             ctx.fillStyle='#000000';
  267.             ctx.fillRect(0,0,canvas.width,canvas.height);
  268.             ctx.fillStyle='#ffffff';
  269.             ctx.font='40px helvatica';
  270.             ctx.fillText('ZeX_EVO',370,140);
  271.             ctx.font='20px san-serif';
  272.             ctx.fillText('presents',395,190);
  273.             ctx.font='italic 60px san-serif';
  274.             ctx.fillText('Friendly Snake',240,280);
  275.             var img = new Image();
  276.             img.onload = function()
  277.             {
  278.                 ctx.drawImage(img,300,300,200,200);
  279.                 ctx.fillRect(410,330,10,10);
  280.             }
  281.             img.src ='snake.png';
  282.         }
  283.         function fullscreen()
  284.         {
  285.             launchFullscreen(canvas);
  286.         }
  287.         return {
  288.             pause: pause,
  289.             restart : restart,
  290.             start : start,
  291.             begin: begin,
  292.             fullscreen : fullscreen,
  293.             adjust : adjust,
  294.         };
  295.     })();
  296.     snake.game.start();
  297. }
  298. </script>
  299. </head>
  300. <body>
  301. <canvas width="850" height="600" id="canvas" style="border:1px solid #333;" onclick="snake.game.begin();">
  302. </canvas>
  303. <div id="controls" style="float:right; text-align:center;">
  304.     <input type="button" id="pause" value="Play" onClick="snake.game.pause(this);" accesskey="p">
  305.     <input type="button" id="restart" value="Restart" onClick="snake.game.restart();">
  306.     <br/><br/>
  307.     <input type="button" id="fullscreen" value="Play Fullscreen" onClick="snake.game.fullscreen();">
  308.     <br/><br/>
  309.     <div style="font-size:24px;">
  310.     Score : 
  311.     <span id="scoreboard">0</span>
  312.     </div>
  313. </div>
  314. </body>
  315. </html>
  316. You can see a live version of the game here.
  317.  
  318. javascript html5 canvas snake-game
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:14: error: class, interface, or enum expected
}<!DOCTYPE HTML>
 ^
Main.java:22: error: illegal character: '#'
    background:#000;
               ^
Main.java:23: error: class, interface, or enum expected
    color:#FFF;
    ^
Main.java:23: error: illegal character: '#'
    color:#FFF;
          ^
Main.java:24: error: class, interface, or enum expected
}
^
Main.java:27: error: illegal character: '#'
    background:#FFF;
               ^
Main.java:28: error: class, interface, or enum expected
}
^
Main.java:29: error: illegal character: '#'
#controls
^
Main.java:32: error: class, interface, or enum expected
    top:0;
    ^
Main.java:33: error: class, interface, or enum expected
    right:0;
    ^
Main.java:34: error: class, interface, or enum expected
    margin:10px;
    ^
Main.java:35: error: class, interface, or enum expected
}
^
Main.java:39: error: class, interface, or enum expected
function launchFullscreen(element) {
^
Main.java:42: error: class, interface, or enum expected
  } else if(element.mozRequestFullScreen) {
  ^
Main.java:44: error: class, interface, or enum expected
  } else if(element.webkitRequestFullscreen) {
  ^
Main.java:46: error: class, interface, or enum expected
  } else if(element.msRequestFullscreen) {
  ^
Main.java:48: error: class, interface, or enum expected
  }
  ^
Main.java:51: error: class, interface, or enum expected
    document.addEventListener("fullscreenchange", function(){snake.game.adjust();});
                                                                                 ^
Main.java:52: error: class, interface, or enum expected
    document.addEventListener("webkitfullscreenchange", function(){snake.game.adjust();});
    ^
Main.java:52: error: class, interface, or enum expected
    document.addEventListener("webkitfullscreenchange", function(){snake.game.adjust();});
                                                                                       ^
Main.java:53: error: class, interface, or enum expected
    document.addEventListener("mozfullscreenchange", function(){snake.game.adjust();});
    ^
Main.java:53: error: class, interface, or enum expected
    document.addEventListener("mozfullscreenchange", function(){snake.game.adjust();});
                                                                                    ^
Main.java:54: error: class, interface, or enum expected
    document.addEventListener("MSFullscreenChange", function(){snake.game.adjust();});
    ^
Main.java:54: error: class, interface, or enum expected
    document.addEventListener("MSFullscreenChange", function(){snake.game.adjust();});
                                                                                   ^
Main.java:56: error: class, interface, or enum expected
    snake.game = (function()
    ^
Main.java:58: error: unclosed character literal
        var canvas = document.getElementById('canvas');
                                             ^
Main.java:58: error: unclosed character literal
        var canvas = document.getElementById('canvas');
                                                    ^
Main.java:59: error: class, interface, or enum expected
        var ctx = canvas.getContext('2d');
        ^
Main.java:59: error: unclosed character literal
        var ctx = canvas.getContext('2d');
                                    ^
Main.java:59: error: unclosed character literal
        var ctx = canvas.getContext('2d');
                                       ^
Main.java:60: error: class, interface, or enum expected
        var status=false;
        ^
Main.java:61: error: class, interface, or enum expected
        var score = 0;
        ^
Main.java:62: error: class, interface, or enum expected
        var old_direction = 'right';
        ^
Main.java:62: error: unclosed character literal
        var old_direction = 'right';
                            ^
Main.java:62: error: unclosed character literal
        var old_direction = 'right';
                                  ^
Main.java:63: error: unclosed character literal
        var direction = 'right';
                        ^
Main.java:63: error: unclosed character literal
        var direction = 'right';
                              ^
Main.java:65: error: class, interface, or enum expected
        var score = 0;
        ^
Main.java:66: error: class, interface, or enum expected
        var refresh_rate = 250;
        ^
Main.java:67: error: class, interface, or enum expected
        var pos = [[5,1],[4,1],[3,1],[2,1],[1,1]];
        ^
Main.java:68: error: class, interface, or enum expected
        var scoreboard = document.getElementById('scoreboard');
        ^
Main.java:68: error: unclosed character literal
        var scoreboard = document.getElementById('scoreboard');
                                                 ^
Main.java:68: error: unclosed character literal
        var scoreboard = document.getElementById('scoreboard');
                                                            ^
Main.java:69: error: class, interface, or enum expected
        var control = document.getElementById('controls');
        ^
Main.java:69: error: unclosed character literal
        var control = document.getElementById('controls');
                                              ^
Main.java:69: error: unclosed character literal
        var control = document.getElementById('controls');
                                                       ^
Main.java:70: error: class, interface, or enum expected
        var keys = {
        ^
Main.java:71: error: unclosed character literal
            37 : 'left',
                 ^
Main.java:71: error: unclosed character literal
            37 : 'left',
                      ^
Main.java:72: error: unclosed character literal
            38 : 'up',
                 ^
Main.java:72: error: unclosed character literal
            38 : 'up',
                    ^
Main.java:73: error: unclosed character literal
            39 : 'right',
                 ^
Main.java:73: error: unclosed character literal
            39 : 'right',
                       ^
Main.java:74: error: unclosed character literal
            40 : 'down'
                 ^
Main.java:74: error: illegal line end in character literal
            40 : 'down'
                      ^
Main.java:76: error: class, interface, or enum expected
        function adjust()
        ^
Main.java:81: error: class, interface, or enum expected
                canvas.height=window.innerHeight;
                ^
Main.java:82: error: class, interface, or enum expected
                control.style.display='none';
                ^
Main.java:82: error: unclosed character literal
                control.style.display='none';
                                      ^
Main.java:82: error: unclosed character literal
                control.style.display='none';
                                           ^
Main.java:87: error: class, interface, or enum expected
                canvas.height=600;
                ^
Main.java:88: error: class, interface, or enum expected
                control.style.display='inline';
                ^
Main.java:88: error: unclosed character literal
                control.style.display='inline';
                                      ^
Main.java:88: error: unclosed character literal
                control.style.display='inline';
                                             ^
Main.java:92: error: class, interface, or enum expected
        function todraw()
        ^
Main.java:94: error: class, interface, or enum expected
            for(var i = 0; i < pos.length; i++)
                           ^
Main.java:94: error: class, interface, or enum expected
            for(var i = 0; i < pos.length; i++)
                                           ^
Main.java:97: error: class, interface, or enum expected
            }
            ^
Main.java:102: error: class, interface, or enum expected
            switch(old_direction)
            ^
Main.java:104: error: unclosed character literal
                case 'right':
                     ^
Main.java:104: error: unclosed character literal
                case 'right':
                           ^
Main.java:106: error: class, interface, or enum expected
                    break;
                    ^
Main.java:107: error: class, interface, or enum expected
                case 'left':
                ^
Main.java:107: error: unclosed character literal
                case 'left':
                     ^
Main.java:107: error: unclosed character literal
                case 'left':
                          ^
Main.java:109: error: class, interface, or enum expected
                    break;
                    ^
Main.java:110: error: class, interface, or enum expected
                case 'up':
                ^
Main.java:110: error: unclosed character literal
                case 'up':
                     ^
Main.java:110: error: unclosed character literal
                case 'up':
                        ^
Main.java:112: error: class, interface, or enum expected
                    break;
                    ^
Main.java:113: error: class, interface, or enum expected
                case 'down':
                ^
Main.java:113: error: unclosed character literal
                case 'down':
                     ^
Main.java:113: error: unclosed character literal
                case 'down':
                          ^
Main.java:115: error: class, interface, or enum expected
                    break;    
                    ^
Main.java:116: error: class, interface, or enum expected
            }
            ^
Main.java:118: error: class, interface, or enum expected
            pos.pop();
            ^
Main.java:119: error: class, interface, or enum expected
        }
        ^
Main.java:123: error: class, interface, or enum expected
            switch(old_direction)
            ^
Main.java:125: error: unclosed character literal
                case 'right':
                     ^
Main.java:125: error: unclosed character literal
                case 'right':
                           ^
Main.java:127: error: class, interface, or enum expected
                    break;
                    ^
Main.java:128: error: class, interface, or enum expected
                case 'left':
                ^
Main.java:128: error: unclosed character literal
                case 'left':
                     ^
Main.java:128: error: unclosed character literal
                case 'left':
                          ^
Main.java:130: error: class, interface, or enum expected
                    break;
                    ^
Main.java:131: error: class, interface, or enum expected
                case 'up':
                ^
Main.java:131: error: unclosed character literal
                case 'up':
                     ^
Main.java:131: error: unclosed character literal
                case 'up':
                        ^
Main.java:133: error: class, interface, or enum expected
                    break;
                    ^
Main.java:134: error: class, interface, or enum expected
                case 'down':
                ^
100 errors
stdout
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Standard output is empty
https://ideone.com/dc8phN
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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