Jump to content
  • Advertisement
Sign in to follow this  

interesting problem - help !!

This topic is 5095 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

hi all, i've an interesting problem to be solved - i've described my solution also but would like to hear if therez a simple one to that. here is the problem, Within a circle, find whether a moving pt. has passed the target pt.; moving pt. can either rotate in anti-clockwise (+ve rotation) or clockwise (-ve rotation). but it is given that the moving pt. is always to the left of target pt. during +ve rotation and it is to the right of target pt. during -ve rotation when viewed from outside the circle. solution:: if (+ve rotation) { assume the target is always 2pi; if (initial target is 2Pi or 0 ) { untouch the moving pt.; } else { displace the moving pt. by targetPt. value; // if target is in 1st quadrant & moving pt. in 4th quadrant if (moving pt. < 0) { moving pt. += 2Pi;} } if (moving pt. > 360) { moving pt. passed target pt. } } else if (-ve rotation) { do the other way with target value assumed to 0.... } appreciate ur inputs.... .kavitha

Share this post

Link to post
Share on other sites
Sign in to follow this  

  • Advertisement

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

GameDev.net is your game development community. Create an account for your GameDev Portfolio and participate in the largest developer community in the games industry.

Sign me up!