?
Solved

collision detection

Posted on 2000-04-19
6
Medium Priority
?
403 Views
Last Modified: 2010-04-04
how do i detect collision between helicopter and very large  terrain which contains many mountains in direct3d using delphix.
0
Comment
Question by:f15iaf
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 7

Expert Comment

by:Motaz
ID: 2730685
What did you mean by collision and meshes?
0
 
LVL 5

Expert Comment

by:TheNeil
ID: 2730702
It all depends on how complex your objects are and how many dimensions you are dealing with. A simple solution would be to treat everything as a sphere and then check to see if object 1's 'sphere' intersects with objects 2's.

e.g. Assume that object 1 can be encompased by a sphere of radius 5 and that object 2 can be encompassed by a sphere of radius 10. To check if the two have collided, check the distance between the two (from the centre points) and if it's less than the two radii combined then they have collided. Collision := (iDist <= (r1 + r2))
Calculating iDist can be done with simple Pythagorus: iDist := SQRT(SQR(x1 - x2) + SQR(y1 - y2)) This can be extended to 3 dimensions using the 3D version but I can't remember it off the top of my head

Hope that helps

The Neil =:)
0
 
LVL 3

Author Comment

by:f15iaf
ID: 2730706
Edited text of question.
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 3

Author Comment

by:f15iaf
ID: 2730740
Edited text of question.
0
 
LVL 5

Expert Comment

by:TheNeil
ID: 2730747
That's right, change the question after I give one of my better solutions

The Neil =>(
0
 
LVL 4

Accepted Solution

by:
jeurk earned 60 total points
ID: 2731350
hello,
this is the best thing you will find :
http://users.cybercity.dk/~bbl6194/delphi3dx.htm 
it has a component for delphiX that does exactly what you want...
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question