Search from various English teachers...
Profile
Hi everybody. I come form china. My name is Long, it means Dragon in Chinese,. and you can call me Dragon if you want, haha. I am working as a software engineer, specially developing web apps in China.s largest e-commerce company. so building complex Desktop or Mobile web apps was my most excelled technology; I choose English as My second Language, because My family plan to migrate to New Zealand in the future. and need a skilled work to get PR visa. so My recent Goal are IETLS Exam 6.5 and Working English. thank you very much
Learning
English
Language Skills
Chinese (Mandarin)Native
Japanese
Lesson Feedback
Lesson history
 Last monthLast 3 monthsAll time
Completed lessons000
Attendance rate100%100%100%
Teacher reviews
No record
Activities
  • Posted
    Dirty-check for HTML5 Canvas render performance The way you don't want to redraw entire canvas every frame, it only can be the "Dirty-Check" or "Dirty Matrix" algorithms. Dirty-check seems more efficient than entire redraw. but I think it depends on your render implementation. it is not necessary to use it if you are using canvas2D to render. Nearly every game has complex sprites and animation. if you use dirty-check, when a part of sprite or background map need to update, you have to figure out what is overlapping this part. and then clearRect this small area of canvas, and then redraw every sprite or map. etc, what is overlapping. It means your had to run canvas render api more times than normal render implementation because of the overlapping part. And Canvas2d render performance usually does't sounds efficient. But if you use WebGL, that maybe quite difference. even though I am not family with WebGL, I do knew that maybe more efficient. Dirty-Check should be a good Choice to match your propose.
    November 24, 2014
    0
    0
  • Posted
    Depressed day Another depressed day, I made a common mistake again that make my wife angry. So what did I done today? I wrote the signature on my wife's passport because of some stupid reason. Why did I do this? I really don't know the exactly reason myself. we supposed to transfer the stuff to ShangHai, and then submit to ambassador. but she was at home, and at that moment, I just want to accelerate submit process, so wrote the her signature. what a stupid mind is, that would make her visa to be failed if ambassador found the fake signature. what a stupid idea!!
    November 21, 2014
    3
    0
  • Corrected

    Since 11.1 Tmall Bonus Activity started,today is the 3rd night for my bonus team. FrontEnd、Server developer, Tester and PD are all sitting in the project room. This is our night for this great activity. The first single day activity since Alibaba IPO.

    There are still a few Developers included me stay here to avoid system emergency happening. Now, the system is running in control, and exception didn't happen, so I think tonight should be a comfortable one. And lucky, this may be our last day to be so busy. When tomorrow come, my team should be ideal, and finally can take a break time to relax.

    My game-develop skill was improved during this project. After 11.11, I must build a game framework project, base on basic render Engine, and add some advanced feature such as physics, particle, camera. That is so fantasy! I wish it would help my New Zealand immigration to be more successfull

    0 voted
    November 21, 2014
    0
  • Corrected

    好久不见了!

    Hello italki的朋友们!

    好久不上italki了,最近回泰国了,工作很忙。
    泰国现在超级热!很怀念在北京的时刻时候,希望老板赶紧派我回到回去过冬天的生活。

    昨天刚有个闺蜜从北京过来,我很兴奋地去接待并负责当当地导演导游。
    她第一次到泰国非常激动,看啥都很顺眼。她说泰国人本性都是个慢性子节奏,
    泰国菜又好吃又便宜,这几天在这里会发胖很多。:)

    想来泰国的你,可以联系我,我会尽力提供帮助!
    泰国很欢迎你们!

    0 voted
    November 3, 2014
    0
  • Corrected

    Tmall 11.11 Bonus Activity Project Daily note

    Since 11.1 Tmall Bonus Activity started,today is the 3rd night for our project member. FrontEnd、Server developer, Tester and PD are all sitting in the project room. this is our great event, The first 11.11 activity since Alibaba IPO.

    there are still a few Developer left here, including me. to avoid sudden system accident happing. System is running in control, no exception occur, so I think this night should be a comfortable one. and this is our last busy day. when tomorrow come, our bonus interact team should be ideal, and finally have a break time for relax.

    my game develop skill was improved during this project. and after 11.11, I must build a game framework project, base on basic render Engine, and add some advanced feature such as physics, particle, camera. that is so fantasy! I wish it would help my New Zealand immgration to be more successfull

    0 voted
    November 3, 2014
    0
  • Posted
    Tmall 11.11 Bonus Activity Project Daily note Since 11.1 Tmall Bonus Activity started,today is the 3rd night for our project member. FrontEnd、Server developer, Tester and PD are all sitting in the project room. this our night for this great activity. The first 11.11 activity since Alibaba IPO. there are still a few Developer left here, including me. to avoid sudden system accident happing. System is running in control, no exception occur, so I think this night should be a comfortable one. and this is our last busy day. when tomorrow come, our bonus interact team should be ideal, and finally have a break time for relax. my game develop skill was improved during this project. and after 11.11, I must build a game framework project, base on basic render Engine, and add some advanced feature such as physics, particle, camera. that is so fantasy! I wish it would help my New Zealand immgration to be more successfull
    November 3, 2014
    2
    0