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Tobo

Years of Service

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Joined: 12th May 2005

Location:

Posted: 7th Sep 2011 02:42

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Dear all,

I can't figure out why this code isn't working.

+ Code Snippet

set display mode 640,480,32

'create shape
circle 50,50,20
line 30,50,70,50
line 50,30,50,70

'grab the image
get image 1,30,30,71,71,1

'use it as a sprite
sprite 1,50,50,1

for f=1 to 20
    paste sprite 1,rnd(600),rnd(440)
    wait 500
next

wait key
end

The sprite seems to flash for an instant at random places, but... I don't know. I have a feeling it has something to do SYNC but I'm not sure.

Any pointers?

T.

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Grog Grueslayer

Valued Member

Years of Service

User Offline

Joined: 30th May 2005

Playing: Green Hell

Posted: 7th Sep 2011 05:44 Edited at: 7th Sep 2011 05:45

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You're not actually using SYNC. When you don't have SYNC ON it automatically updates anytime there's any drawing to the screen... but because you're using a SPRITE the blue background shows up and clears anything that you pasted. Once you actually turn on SYNC you'll see it.

+ Code Snippet


set display mode 640,480,32

` Set the sync rate and turn on syncing
sync rate 0
sync on

` create shape
circle 50,50,20
line 30,50,70,50
line 50,30,50,70

` grab the image
get image 1,30,30,71,71,1

` Hide the mouse
hide mouse

do

 ` Show the sprite at the mouse coordintes
 sprite 1,mousex(),mousey(),1
 
 ` Paste the sprite 20 times in random locations
 for f=1 to 20
    paste sprite 1,rnd(600),rnd(440)
    `wait 500
 next

 ` Update the screen
 sync

loop

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Newcomers DBPro Corner / problem with displaying sprites