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#1 2009-01-13 10:57:41
- yambanshee
- Scratcher
- Registered: 2007-11-06
- Posts: 500+
Trig
Can someone explain to me how to get a basic trig formula for stright movement based on direction?
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#2 2009-01-13 12:32:14
- Paddle2See
- Scratch Team
- Registered: 2007-10-27
- Posts: 1000+
Re: Trig
If you are moving in direction A and move a distance of D steps, the change in your position will be
Change in X = D * Sin(A)
Change in Y = D * Cos(A)
Note that these equations assume you are using the Scratch coordinate system where zero degrees is in the direction of the Y axis. Many textbooks assume that the coordinate system is with zero degrees in the direction of the X axis. If that is the case, just swap Sin for Cos and vice-versa.
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#3 2009-01-13 14:23:47
- yambanshee
- Scratcher
- Registered: 2007-11-06
- Posts: 500+
Re: Trig
Thanx alot! Yeah, flash works diffrently then scratch, so im glad you told me that.
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