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Active Forums => QB64 Discussion => Topic started by: MrFreyer on February 16, 2018, 01:08:25 pm

Title: Create image out of screenlayer
Post by: MrFreyer on February 16, 2018, 01:08:25 pm
Hello,

for making my gamecode more efficent, I would like to create a layer, put my spritetiles on this layer, save this layer as an image, change to the default Destinationlayer and put my saved image as a backgrundimage in every frame. But it doesn't works correctly.
I tried it like this:


_DEST backgroundlayer

FOR y = 1 TO 100
FOR x = 1 TO 100
 _PUTIMAGE (x, y), tilespriteA
NEXT x
NEXT y

backgroundImage = backgroundlayer

_DEST 0

.
.
.

 _PUTIMAGE (x, y), backgroundImage


Thanks
Title: Re: Create image out of screenlayer
Post by: FellippeHeitor on February 16, 2018, 01:31:06 pm
offScreenBuffer = _newimage(desiredWidth, desiredHeight, 32)

SCREEN _newimage(desiredGameWidth, desiredGameHeight, 32)

_DEST offScreenBuffer

FOR y = 1 TO 100
FOR x = 1 TO 100
 _PUTIMAGE (x, y), tilespriteA
NEXT x
NEXT y

_putimage (x, y), offScreenBuffer, _DISPLAY
Title: Re: Create image out of screenlayer
Post by: MrFreyer on February 16, 2018, 02:11:06 pm
Okay, great.

Is it possible to change later the size of the image, I created with _NEWIMAGE?

Sry, but you know: the wiki is still down... :D
Title: Re: Create image out of screenlayer
Post by: bplus on February 16, 2018, 02:23:01 pm
Wiki is up! see this

https://www.qb64.org/forum/index.php?topic=79.0

or just go here

https://www.qb64.org/wiki/Main_Page
Title: Re: Create image out of screenlayer
Post by: FellippeHeitor on February 16, 2018, 02:24:07 pm
Quote from: MrFreyer on February 16, 2018, 02:11:06 pm
Okay, great.

Is it possible to change later the size of the image, I created with _NEWIMAGE?

Sry, but you know: the wiki is still down... :D

You'll need to _FREEIMAGE offScreenBuffer and then offScreenBuffer = _newimage(newdesiredWidth, newdesiredHeight, 32)

By the way, we have the wiki at www.qb64.org/wiki
Title: Re: Create image out of screenlayer
Post by: Petr on February 17, 2018, 04:31:01 am
Quote
Okay, great.

Is it possible to change later the size of the image, I created with _NEWIMAGE?

Sry, but you know: the wiki is still down... :D

You'll need to _FREEIMAGE offScreenBuffer and then offScreenBuffer = _newimage(newdesiredWidth, newdesiredHeight, 32)

By the way, we have the wiki at www.qb64.org/wiki

or use _PUTIMAGE and insert your screenBuffer to visible screen (in the same size, or diminished, or enlarged. Or, if you want to make a picture by rotating, use _MAPTRIANGLE.)
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