Math to Calculate 2d point from rotation and distance?

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I am not looking for a link to unity’s built in conversions. I need to code the conversion for myself. i think it has to do with sin and cos.

quite simply, if y is up. if I am standing at position 0,0 in 2D space, how do i calculate a 0 to 360 rotation into a point at a given distance?

Hopefully someone can explain the math steps for me. I would be happy if i could figure out either a direction vector or a point.

2 Answers

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Here is how you get direction vector from angle. After that multiply it by your distance and add it to your initial point. That should be enough

This was a much better link than what i could find and was just what i needed with an understandable explanation. It also included what would have been my next question about how to calculate backwords. thank you.

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He said nothing wrong, there is a reason Resources are compiled in a way they're difficult to alter. Doing this doesn't exactly make it easier for Unity to access. You just sound butt hurt.

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radians = degrees * 2.0 * pi / 360.0
dx = cos(radians) * distance
dy = sin(radians) * distance

I used your math in my function and it works perfect. thank you.

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