Solved

Tiles and collision detection

Posted on 2004-04-11
6
296 Views
Last Modified: 2010-04-07
Hi,
ok, you don't need to post any code, it's just a simple discussion, I just want new working ideas that I'm too lazy to search for!

First of all, did you check a game called Xonix before?
or the new AirXonix from atomax.com?
or maybe the classic Jezzball?

For simple games like these, what's the most appropriate method to check for collisions?
do you have to make a map of the entire field? how big should a tile be? or is there another method?

Can you help me find the algorithims for checking collisions between ball/cylinder, ball/polygon, ... using vectors?

Please post any comments you find relevant.
Thanks
0
Comment
Question by:gamesdev
  • 3
6 Comments
 
LVL 5

Accepted Solution

by:
info_expert earned 200 total points
ID: 10839200
Hi,

Ok, here is the source code for Jezzball:

http://www.ticalc.org/pub/89/asm/source/jezzball_source.zip

0
 
LVL 5

Expert Comment

by:info_expert
ID: 10839228
If you dont want to opt for code then here is a tutor:

http://www.rookscape.com/vbgaming/tutAP.php

Regards.
0
 
LVL 5

Expert Comment

by:info_expert
ID: 10839238
0
 
LVL 1

Author Comment

by:gamesdev
ID: 10848057
A couple of hyperlinks, wasn't exactly the answer I was looking for.
Thanks anyway.
PS: the second link is broken!
0
 
LVL 6

Expert Comment

by:Plamodo
ID: 11071233
Hey.

I recently tried my luck at making an asteroids game (in VB).  The graphics were all done by drawing lines.. my asteroids were 12 sided, and a simple iscoceles triangle for the ship.

For collisions, I found a wicked formula that calculates if a point (x,y) was within a triangle defined by points A(x,y), B(x,y), C(x,y).  So at every check-point, I'd check to see if any of the 12 points of the asteroid was in the triangle of the spaceship, AND if any of the 3 points of the ship were within the 12 triangles of each asteroid... And I did the same thing with all the active bullets on the screen.. checking the X,Y of each bullet with each triangle of each asteroid.

This made for incredibly accurate collision detection.. right down to the pixel.
Anyways, Thought I'd share that with you...

Sean
0

Featured Post

What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

As game developers, we quickly learn that Artificial Intelligence (AI) doesn’t need to be so tough.  To reference Space Ghost: “Moltar, I have a giant brain that is able to reduce any complex machine into a simple yes or no answer. (http://www.youtu…
Recently, in one of the tech-blogs I usually read, I saw a post about the best-selling video games through history. The first place in the list is for the classic, extremely addictive Tetris. Well, a long time ago, in a galaxy far far away, I was…
This video demonstrates how to create an example email signature rule for a department in a company using CodeTwo Exchange Rules. The signature will be inserted beneath users' latest emails in conversations and will be displayed in users' Sent Items…
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…

707 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

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now