VTP代码，用于地形模拟的代码，现在网上很少有了，06年和网站上的邮件人多次沟通，才下载到开发包，十分珍贵-VTP code, the code used to simulate the terrain, and now the Internet has been very few, 06 years and the website of the e-mail communication, to download the development package, very valuable