Jump to content
  • Advertisement
Sign in to follow this  
ahillel

Question on Trigonometry

This topic is 3943 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

Please take a look on this sketch i made: http://www.geocities.com/a_hillel/Q1.GIF - I have a player + 4 objects. How can i be sure, that the object that is in the "eye-view" of the player, is realy the true one, and not the opposites? Till now I've been trying to find an answer using Tangens of player's angle. Does anyone has an idea?

Share this post


Link to post
Share on other sites
Advertisement
Use the dot product: http://en.wikipedia.org/wiki/Dot_product.

If the vectors to the object and the player vector are normalized it is just the cosine of the angle between those vectors. Check out the geometric interpretation section at Wikipedia. Hope that helps.

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.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!