Thursday, August 12, 2010

IT News HeadLines (bit-tech.net) 12/08/2010


bit-tech.net
Kinect can't read sign language
Microsoft has confirmed that Kinect will not support sign language, or recognise fingers.
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Developer Blog: Making the AI Work
This week I'll hand over to Frozen Synapse's Lead Designer, Ian Hardingham, who has just had a breakthrough with creating Frozen Synapse's pathfinding engine... - Paul Taylor

I'm pleased with myself today.

The pathfinding in FS has always been atrocious – experienced players pretty much have to use shift all the time to bypass it. It’s a pain in the ass. Here’s a great example of it going wrong, below.

Developer Blog: Making the AI Work Developer Blog: Interface Design
Artificial Intelligence is no match for Natural Stupidity

The reason pathfinding sucks so much is that my algorithm for it is terrible – it splits the levels up into a grid, each square about the size of a unit. It then checks each square for obstacles. It’s a really innaccurate representation of the level.

This weekend I was reading up on advanced pathfinding stuff, and considering using some kind of Navmesh with movement polygons. Then I was hit by a flash of inspiration – the only thing that matters in FS is corners. If you ever want to make a path in FS, you only ever use the corners to get there – the only points I need in my nav-graph are the corners! Here’s my code for identifying the corners in action...

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Avira blocks BitDefender beta
Anti-virus vendor Avira was left with egg on its face after blocking rival BitDefender as a Trojan.
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Evernote coughs to data loss
Cloud-based Evernote has admitted that some users lost data as a result of a hardware failure.
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Control Your PC With Your Mind
Touchscreens and motion control are old hat - we look at controlling computers with your mind.
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