Jump to content
  • Advertisement
Sign in to follow this  
ahillel

Question on Trigonometry

This topic is 4025 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.

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!