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changing screen size

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sejo 2021-09-28 15:01:19 -05:00
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src/uxn_tutorial_day_2.gmo
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@ -8,8 +8,6 @@ we also discuss working with shorts (2-bytes) besides single bytes in uxntal.
if you haven't done it already, i recommend you read the previous section at {uxn tutorial day 1}
12021-07-31: updated to correspond to the latest version of the varvara screen device.
# where are your shorts?
before jumping right into drawing to the screen, we need to talk about bytes and shorts :)
@ -1072,7 +1070,22 @@ as programmers, we are expected to decide what to do with these: our programs ca
## changing the screen size
as of today, the way of changing the screen size in uxnemu is by editing its source code.
we can change the varvara screen size by writing to the .Screen/width and .Screen/height fields.
for example, the following would change it to a 640x480 resolution:
```
#0280 .Screen/width DEO2 ( width of 640 )
#01e0 .Screen/height DEO2 ( height of 480 )
```
note that this would only work for instances of the varvara emulator where the screen size can actually be changed, e.g. because the virtual screen is a window.
it would be important to keep in mind the responsiveness aspects that are discussed below, for the cases where we can't change the screen size!
### default screen size
originally, the way of changing the screen size in uxnemu implied editing its source code.
in the uxn repo we downloaded, inside the src/ directory, there's uxnemu.c, with a line that looks like the following: