angle2vector?

TwistedMech

hi

I want to get an X and Y position based on an Angle+distance from start point. This would be used to fire an object from the player to a direction set using the joystick template (right stick).

This could be used in a game to move an object using interpolate x,y.

I found some code which looks like it performs the calculation but need to find a GameSalad equivalent for "toRadians". It would be nice to have a command Angle2Vector.

Anyone have any ideas?

private Point2D.Double getPoint(double angle, double distance) {
// Angles in java are measured clockwise from 3 o'clock.
double theta = Math.toRadians(angle);
Point2D.Double p = new Point2D.Double();
p.x = center.x + distance*Math.cos(theta);
p.y = center.y + distance*Math.sin(theta);
return p;

Rob2

well from a quick google

angle in radians = angle in degrees * Pi / 180

but if you know your distance and the angle you can use

x=distance*(cos(angle))
y=distance*(sin(angle))

but I might be wrong so just going to check

RH

Just basic trig.

Rob2 said:

but I might be wrong so just going to check

that's right!

tenrdrmer

Am I missing something here? GameSalad has Angle2Vector You use it similar to magnitude where you use say (self.position.x-touch.x,Self.position.y-touch.y)

Or am I just missing the whole point of this thread?

Rob2

@Tendrmer yes What Mech wanted was the X and Y coordinates of a point given its angle and distance from another point. What GS has is Vector to Angle which just gives the angle between two points.

TwistedMech

it works very well. thank you.