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 raycasting
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metachief
PostPosted: Sat Sep 27, 2008 10:55 pm   Post subject: raycasting
How do I detect the points in the following picture without using what dot colour. The grid is made of 10x10 squares and I need to detect the points on the sides of the squares that the line touches. This is for my 2D Raycater.

New Bitmap Image.bmp
 Description:
The blue circle is supposed to be the player and the bright-blue line is the ray. The red points is where I would like to detect collision.
 Filesize:  29.35 KB
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New Bitmap Image.bmp
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gitoxa
PostPosted: Sat Sep 27, 2008 11:18 pm   Post subject: RE:raycasting
Wouldn't math be more accurate?
metachief
PostPosted: Sat Sep 27, 2008 11:22 pm   Post subject: RE:raycasting
Thats what meant...as I said I dont whant to use what dot color, instead I need help on how to figure it out with math.
SNIPERDUDE
PostPosted: Sun Sep 28, 2008 7:49 am   Post subject: RE:raycasting
http://www.permadi.com/tutorial/raycast/
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