Rotating images

[greggiles]

When you draw an image, such as a simple hud img, or whater, is it possible to rotate the image? If so, how?

[fowlplay4]

You can edit the rotation like this:

findimg(200).rotation = pi;

[greggiles]

What is the pi?

[greggiles]

Nvm. I got it. It was obvious lol

[blackbeltben]

can you do a horizontal reflection too?

[Crow]

Originally Posted by blackbeltben

can you do a horizontal reflection too?

You can mirror images by using negative values for stretchx and/or stretchy.

[Pelikano]

It seems that rotation uses the center to rotate the entity, is there any way to set the rotation center?

[Emera]

Originally Posted by Crow

You can mirror images by using negative values for stretchx and/or stretchy.

I learned something new today <3

[cbk1994]

Originally Posted by Pelikano

It seems that rotation uses the center to rotate the entity, is there any way to set the rotation center?

Never used it but try

PHP Code:

TShowImg.rotationcenter - string - the current rotation center (only works when useowncenter=true) 


[Gunderak]

I have used that and it works, put something like this.

PHP Code:

useowncenter = true;
rotationcentre = 2,2;
//It might be rotationcentre = { 2, 2 }; so try both ways 


[callimuc]

Originally Posted by Gunderak

I have used that and it works, put something like this.

PHP Code:

useowncenter = true;
rotationcentre = 2,2;
//It might be rotationcentre = { 2, 2 }; so try both ways 


Are the numbers counted in tiles, pixel, ...?

[Gunderak]

I think pixels.

[Pelikano]

Hmm couldn't get this working, can I see where you are using this Gunderak?

I can't find rotationcenter or rotationcentre on the graal wiki anyway... hmm

[Stephen]

Tigairius could offer some great solutions on smoothly rotating a static image.

[cbk1994]

Originally Posted by Pelikano

Hmm couldn't get this working, can I see where you are using this Gunderak?

I can't find rotationcenter or rotationcentre on the graal wiki anyway... hmm

This is working for me:

PHP Code:

//#CLIENTSIDE
function onCreated() {
  with (findImg(200)) {
    image = "light3.png";
    
    x = GraalControl.width / 2;
    y = GraalControl.height / 2;
    
    layer = 4;
    
    // these two lines are the key:
    useOwnCenter = true;
    rotationCenter = {20, 20};
  }
  
  while (true) {
    findImg(200).rotation += 0.1;
    sleep(0.05);
  }
}