How to write a snake game in PHP

This article to you to share is the use of PHP implementation of the Snake Game code, the main idea is through the session record location to make, should say the idea is very ingenious, recommended to everyone

Snake game is a classic mobile games, both simple and resistant to play. By controlling the direction of the snake head to eat eggs, so that the snake becomes longer, thus obtaining points. In the Nokia era, the entire mobile phone industry, today we look at alternative, how to use PHP to realize the snake games

Needless to say, the code is on:

control.php

<! DOCTYPE html>
main.php

<! DOCTYPE html>
tcs.php

<?php session_start ();  $_session[' ud ');    $_session[' LR '];  $im = Imagecreatetruecolor (300,300);  $blue = Imagecolorallocate ($im, 0,0,255);  $red = Imagecolorallocate ($im, 255,0,0);  $c 1 = imagecolorallocate ($im, 200,200,200);  Imagefill ($im, 0,0, $c 1);    if (!isset ($_session[' a ')) &&!isset ($_session[' B ")) {$_session[' a '] =rand (0,290);  $_session[' B '] =rand (0,290); } if (Isset ($_session[' a ')) &&isset ($_session[' B ')) {Imagerectangle ($im, $_session[' a '],$_session[' B '],$_   session[' A ']+10,$_session[' B ']+10, $red); } if (ABS (($_session[' LR ']-$_session[' a ')) <=5&&abs ($_session[' ud ']-$_session[' B ') <=5) {unset ($_    Session[' a ']);    Unset ($_session[' B ');  $_session[' count ']++;      } switch ($_session[' con ']) {case "up";      if ($_session[' ud ']>10) $_session[' ud ']-=10;    Else $_session[' ud ']=0;    Break      Case "Down": if ($_session[' ud ']<=280) $_session[' ud ']+=10;    Else $_session[' ud ']=290;    Break Case "Left": if ($_session[' LR ']>10) $_session[' LR ']-=10;    else $_session[' LR ']=0;    Break      Case "Right": if ($_session[' LR ']<=280) $_session[' LR ']+=10;    else $_session[' LR ']=290;  Break } for ($i =0; $i <=$_session[' count ']; $i + +) {switch ($_session[' con ')} {case "up": $_session[' udnext ') = $_s        Ession[' ud ']+10* $i;        Imagerectangle ($im, $_session[' lr '],$_session[' udnext '],$_session[' lr ']+10,$_session[' Udnext ']+10, $blue); Imagerectangle ($im, $_session[' lr '],$_session[' Udtime '][time ()-$i],$_session[' lr ']+10,$_session[' udtime '] [      Time ()-$i]+10, $blue);      Break        Case "Down": $_session[' udnext ') = $_session[' ud ']-10* $i;        Imagerectangle ($im, $_session[' lr '],$_session[' udnext '],$_session[' lr ']+10,$_session[' Udnext ']+10, $blue); Imagerectangle ($im, $_session[' lr '],$_session[' Udtime '][time () + $i],$_session[' lr ']+10,$_session[' udtime '] [      Time () + $i]+10, $blue);      Break        Case ' left ':$_session[' lrnext ' = $_session[' lr ']+10* $i;        Imagerectangle ($im, $_session[' lrnext '],$_session[' ud '],$_session[' lrnext ']+10,$_session[' ud ']+10, $blue); Imagerectangle ($im, $_session[' Lrtime '][time ()-$i],$_session[' ud '],$_session[' Lrtime '][time ()-$i]+10,$_      Session[' ud ']+10, $blue);      Break        Case "right": $_session[' lrnext ') = $_session[' LR ']-10* $i;        Imagerectangle ($im, $_session[' lrnext '],$_session[' ud '],$_session[' lrnext ']+10,$_session[' ud ']+10, $blue); Imagerectangle ($im, $_session[' Lrtime '][time () + $i],$_session[' ud '],$_session[' Lrtime '][time () + $i]+10,$_      Session[' ud ']+10, $blue);    Break  }//imagerectangle ($im, $_session[' LR '],$_session[' ud '],$_session[' LR ']+10,$_session[' ud ']+10, $blue);  } header ("Content-type:image/jpeg");  Imagejpeg ($im);  Imagedestroy ($im); ?>
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