Help with lua

[Predricted]

Hi all,
Can someone tell me where if there is any way to make the image angle rotate in lua??
Aren't there any libaries or something for that?

[jackrunner]

I think it is Image.rotate(IMAGE,DEGREE ), I might be wrong and I think that is for LPHMv2(still might be same for other versions)

[dan369]

Your most likely gunna have to do it yourself.

[Xteaph-N]

Originally Posted by dan369

Your most likely gunna have to do it yourself.

This would be the simplest way. But that would make the hardware work more, add more to memory, and make this person work more.


In the latest Luaplayer HMv2 you do it like jackrunner says, but there is a bit more.

--Load the image you want to rotate
TestI = Image.load("test.png")

--Loop
while true do

--Start Graphics Process
screen.startDraw()

--Blit your image
Image.blit(100,100,TestI)

--Rotate your image
Image.rotate(0,0,180,TestI)

--End Graphics Process, end loop, flipscreen
screen.endDraw()
screen.flipscreen()
end

So basically you take your image that's being blitted and you use:

Image.rotate(X,Y,Rotation in Degrees, Image File)

When you use it whatever is in X,Y will be the images new X,Y.

The next variable is controls rotation so 180 degrees will turn the image upside down.

The final variable is your image file, in the example it was simply TestI.

Keep in mind you must have the image blitted or it will freeze your PSP.

[dan369]

Work more. Not really. If there function for it is there then use it but if your not using HMv2 then you might as well do it yourself.

[Predricted]

Originally Posted by Xteaph-N

This would be the simplest way. But that would make the hardware work more, add more to memory, and make this person work more.


In the latest Luaplayer HMv2 you do it like jackrunner says, but there is a bit more.

--Load the image you want to rotate
TestI = Image.load("test.png")

--Loop
while true do

--Start Graphics Process
screen.startDraw()

--Blit your image
Image.blit(100,100,TestI)

--Rotate your image
Image.rotate(0,0,180,TestI)

--End Graphics Process, end loop, flipscreen
screen.endDraw()
screen.flipscreen()
end

So basically you take your image that's being blitted and you use:

Image.rotate(X,Y,Rotation in Degrees, Image File)

When you use it whatever is in X,Y will be the images new X,Y.

The next variable is controls rotation so 180 degrees will turn the image upside down.

The final variable is your image file, in the example it was simply TestI.

Keep in mind you must have the image blitted or it will freeze your PSP.

Sorry this may sound stupid but i don't understand, since i've only worked with luaplayer windows and libaries..
And when i put your script in it it dont works
it gives this error
rotate.lua:8 attempt to call field 'startDraw' (a nil value)...

[Xteaph-N]

Originally Posted by Predricted

Sorry this may sound stupid but i don't understand, since i've only worked with luaplayer windows and libaries..
And when i put your script in it it dont works
it gives this error
rotate.lua:8 attempt to call field 'startDraw' (a nil value)...

Since your using the original Luaplayer there are only 2 ways rotating the image in a photo editor, like dan369 says, or you can rotate your image in 3D GU. Though keep in mind 3D GU functions don't show up in luaplayer windows.

I do not have a PSP capable of running the luaplayer your using. Merick of evilmana shows us how to do this function in GU.

http://www.forums.evilmana.com/index.php?topic=676.0