jerky effect in the movement of objects

Question

hi im trying to create a game in which few objects(UIImageViews) traverse the screen... these objects are generated at an interval of 1 to 0.45 seconds...when they r generating in the range of 1-0.60 seconds they traverse smoothly..but when they generate at a rate less than 0.6 seconds their movement is not smooth they start jerking..also i have a UIImageView which changes the position depending on the the touchesmoved event... please do help

Answer 1

Obviously your game uses too much cpu-power. Try optimizing it using a profiler (Shark for example) and make your object-creation method less time consuming. (Create a bunch of objects at one time and then just reuse them instead of making new ones?)

What's profiling?

I you don't know profiling at all, read this introduction written by Mike Ash. (Excellent blog btw.)

Here is Apple's Documentation of Shark.

Answer 2

hey guys I was able to solve the problem by creating 3 different threads ie one for generating the objects, one for traversing the objects and another for moving the object on the touches move event. I was previously using timers for it...

but using the threads solved the problem

Anyways thanks for all your help :)