rotation question

[Doush.]

I have something in my game which I rotate to face the mouse. Pretty simple. To make things easier with animation I flip the character using scaleX respectivly for left and right movement. Now this causes a problem with the rotation. I set the rotation with the following.

dx = stage.mouseX - this.x;
dy = stage.mouseY - this.y;

radians = Math.atan2(dy,dx);

this.arm.rotation = radians * 180 / Math.PI;

This works perfect when the scaleX is 1 but when I set it to -1 it causes problem like I thought it would. Its not like it faces the exact oposite direction though.

But I thought it would be as simple as multiplying (radians * 180 / Math.PI * scaleX). But I realise radian values weird and not like degrees. So I can't figure out how to flip the value properly. Any thoughts?

[tonypa]

Try this with scaleX:

dx = Math.abs(stage.mouseX - this.x);
dy = stage.mouseY - this.y;
radians = Math.atan2(dy,dx);
this.arm.rotation = radians * 180 / Math.PI;

[Doush.]

Thanks tonypa that seems to work great. Is there a way to enable full 360 rotation for both scaleX -1 and 1. Using your above method gives me 180 degree up and down movement in the direction the mc is facing.

[tonypa]

Maybe (have not tested it):

dx = (stage.mouseX - this.x) * this.scaleX;

[Doush.]

Thanks tony, Ill give it a shot.