2007-12-12:
- add word buffer, so that research a word will be much faster.
- you can see the balls and words come to view moving.
2007-12-09
- bug fix. the whole scene pan while mouse press and move on label and button.
- skip the syn that have no relative words.
2007-12-07
- it's hard to make the center word fixed, but i managed to make it much more heavier than the others, it looks better now.
- make the font a little bigger. and the center main word is bold out.
2007-12-05
- ball and word ,collide check ok.
- auto layout.
- double click word to navigate.
- double click word define area to navigate (in future).