Thijs Leeflang wrote:
> hello,
> 
> im having a problem with trajectories,
> im trying to make an arrow like movement
> i did find this but it's way over my head
> 
> http://www.gamedev.net/reference/programming/features/physicsch6/ch06.pdf

Those algorithms look like they'd be fairly simple to implement, but as 
Ellie said, you will need to review basic trigonometry.

> 
> i have these values,
> @x and @y is the x and y the image is drawn
> 
>     @targetx = targetx
>     @targety = targety
>     @fromx = fromx
>     @fromy = fromx
>     @x = fromx
>     @y = fromy
> 
> can anybody help me with this?
> thanx

It should be fairly clear from the formulae.  One thing that bears 
repeating, though: never use the default floating-point numbers for 
math; they're simply not precise enough.  Use integers or BigDecimal.
Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen / marnen.org
-- 
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