Cocos2d-x for XNA 核心开发者张小明的演讲围绕以下三点展开:Cocos2d-x for XNA和Cocos2d的关系;Cocos2d-x for XNA提供哪些功能,怎么用;Cocos2d-x如何转换到Cocos2d-x for XNA。目前Windows Phone逐渐成为开发者关注的焦点,且Cocos2d-x也为XNA提供了支
Cocos2d-x for XNA 核心开发者张小明的演讲围绕以下三点展开:Cocos2d-x for XNA和Cocos2d的关系;Cocos2d-x for XNA提供哪些功能,怎么用;Cocos2d-x如何转换到Cocos2d-x for XNA。目前Windows Phone逐渐成为开发者关注的焦点,且Cocos2d-x也为XNA提供了支持,以便于Windows Phone的开发者能够使用多种类型的程序开发语言进行开发,而不用过多了解XNA的框架结构。
以下是张小明的演讲实录:
第一,Cocos2d-x跟Cocos2d-x for XNA的关系。
第二,提供哪些功能?怎么用?
第三,如果用Cocos2d-x版本开发游戏,怎么移植到Cocos2d-x forXNA。
讲这些内容照顾两方面的开发者,第一个是以前没有用过Cocos2d-x的游戏引擎,你们要知道有哪些功能。如果有使用过Cocos2d-x开发过游戏的话,你可以知道Cocos2d-x和Cocos2d-x for XNA之间有什么区别。
图:Cocos2d-x for XNA 核心开发者张小明
Cocos2d-x开发主要的目的之一就是要维护开发者的利益,保障开发者的知识可以传承,只要你使用了Cocos2d-x相关的引擎,那么我们就要为你负责。如果这个引擎有三部分,使用的语言、支持的平台和代码。-X是引擎的子类,语言使用是C++,平台是Android、iOS等等。它们的区别第一是语言不同;第二支持平台不同,但是有一个相同点,就是他们要支持相同的API。
Cocos2d-x for XNA版本支持那些内容?显示图片、动画效果、粒子效果、显示文本、添加菜单、播放音乐音效。显示图片基本上三、两个代码就可以做到了,以前有一个模板,添加代码就可以显示一张图片,这个例子其实已经包含了大部分 for XNA和-X之间的区别,大家可以看到在C++版本是有指针的,在XNA版本不需要内存管理,所以是没有指针的概念;对资源加载不同,-X对资源的路径包括文件的格式,在XNA版本只要传文件名字不需要格式。通过一张图片显示,设置位置,告诉引擎你需要渲染这张图片,引擎就会渲染。
动画效果:假设移动到某一个位置,第一个参数就是要几秒钟内做完这个动作,第二就是移动到哪里,引擎就会自动在每周帮你计算偏离量是多少,平滑的完成这个动作。引擎里面有各种各样的动作,只是举其中一个例子。
粒子效果:引擎里面实现了各种各样的种类,只要创建一个抬头,设计需要的纹理是什么,设置一个位置,引擎会自动帮你添加实现粒子效果。同样,需要三、四行代码。
显示文本:显示文本的内容,需要使用的字体,字体的大小,设置一个位置,把文本加进去。添加菜单:创建菜单,把菜单项加到菜单,设置菜单的位置加进去。播放音乐、音效:背景音乐、音效,引擎是音效模块,大家可以看到二者的区别和之前加载图片的区别是一样的,中间不需要格式后缀。
如果用Cocos2d-x开发的游戏一直到Windows Phone版本大家可以看到不同点和相同点。相同点:1、接口相同;2、引擎框架相同;3、同样的社区支持。不同点:1、内存管理方式不同;2、成员变量访问形式不同;3、资源访问方式不同;4、微软、诺基亚的大力支持。

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