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How do you make a rotation so that when you do something, the actor will rotate one way and when you do something else, the actor will rotate the other way?

if you have a rotating animation you can change the animation direction to forward/backward to make it go different ways, but there is no code to rotate a sprite

okay, I figured out how to make a sprite move forward based of the angle of it.

using this code:

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double newangle = (animpos/nframes)*360;
vectoradd(&angle, &directional_velocity, newangle, 0.5001);

but how do you make it move backwards using this code?

angle+=180;

where do I put that?

also, how do you make it stop through the span of two seconds when I lift the key, using this code:

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directional_velocity = 0;

What I mean is make it slowly stop

if(directional_velocity >= 0)
{
directional_velocity -= anumberyoupick;
}
else if(directional_velocity <= 0)
{
directional_velocity = 0;
}

thanks.

Fojam wrote:

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double newangle = (animpos/nframes)*360;
vectoradd(&angle, &directional_velocity, newangle, 0.5001);

but where do I put the

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angle+=180;

in the above code?

Ok, I think that I understand:

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angle+=180;
//where that angle is all you want for to move a sprite

directional_velocity = 0;
//where that velocity is of the sprite in another angle


wow... It's too easy one time that you know as...

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You are understand me? XD

directional_velocity=-10;

will also make actor move backwards

another more...

How rotate a sprite? or actor

then, if I create a game with a car on turn left or rigth?? ?????????????????????

ok! thanks so much! I was like trying to make this minigame with a remote control car, so now I can work on it.

then, if I want rotate a car, I must change the animation and change directional_velocity + angle ¿Not?
It's so complicated ¿not?