I made this during exam period, I was so tired of studying for final exam =(

Yup, big big big fail trying to simulate infinite sky -.-

http://code.google.com/p/cocos2d-iphone/source/browse/#svn/trunkClick on the website above, and find the "test" folder, I think all of those are sample code for using cocos2d functions. It makes life so much easier.

Source code for collision detection is found, implementation for bubble moving to center is done.

Bubble Pubble!! yes! new name...at least it is better than bubble spin spin XD ... pubble stand for pop bubble :P And Thanks Winnie for this name.

Cocos2d is an open source library for iphone 2D games. Apparently, many successful 2d games on iphone use this library. Some people suggest that we should learn the library while learning how to make iphone games. Besides, there are tons of example games on cocos2d's website. We can learn  a lot by reading other people's game!! Here is the website: http://www.cocos2d-iphone.org/ Here is a

P1Lets make it [x1,y1] and [x2,y2] as the center of the two circles and both circle has radius R. Here is the pseudo code:(assume circle1 is stationary and circle2 is moving toward circle1circle2 movesif the distance between the center of circle 1 and circle 2 is less than 2R ( ||[x1,y1]-[x2,y2]||)circle2 stopsonce circle1 stops, check if the color is same as circle 2 if yes, both circles vanishif

Check This OUT!!: http://icodeblog.com/2009/01/15/iphone-game-programming-tutorial-part-1/It looks like this is it!! The best example for my first app idea... Lets have fun!!!

Name: Bubble spin spin! (or a better name if you prefer)Objective Statement:Random bubble from all direction will strike the center of the screen (pivot point). Once the bubble hit the center or any barrier, the bubble will stop there. 2(or3)bubbles with the same color connected will vanish. User can rotate the world around the pivot point by various types of input.Feature List: (not yet)Usage Scenario