Scrolling Text - GameCreators Forum

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Kingy

20

Years of Service

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Joined: 25th Oct 2004

Location:

Posted: 5th Nov 2004 00:51

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Hey im totally new to programming. I just wanted to ask a simple question about scrolling text. I can get the text to scroll to the right by using: x=0
y=240
sync
cls
do
text x,y,"Hello World"
sleep 50
cls
if x<=550
x=x+5
else
x=x-5
endif
loop
sync on

Can anyone help me to get the text to go back to the left. Cheers

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Final Epsilon

20

Years of Service

User Offline

Joined: 26th Jan 2004

Location: CA, USA

Posted: 5th Nov 2004 05:06 Edited at: 5th Nov 2004 05:06

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Here ya go. you needed to add a variable that shows if the text is currently moving right or left, and then move the text appropriately.

+ Code Snippet

sync on
sync rate 30


y=240

moving=1

do
	cls
	text x,y,"Hello World"
	sleep 50

	if x=0
		moving=1
	endif
	
	if x=550
		moving=2
	endif
	

	if moving=1 
		x=x+5
	endif
	
	if moving =2
		x=x-5
	endif

	sync
loop

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lickuidstylz

20

Years of Service

User Offline

Joined: 13th Aug 2004

Location: MD in USA

Posted: 5th Nov 2004 05:14

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Your code is wrong becaus you're saying that if it's less than 550. If you try to get it to go to the left, the x position will still be less than 550 right? So what you do is set a boundary like this,

+ Code Snippet

y=240
x=0
sync
cls
do
text x,y, "Hello World"
sleep 50
cls
if x >= 550
x = x - 5
endif
if x<= 0
x = x + 5
endif
loop
sync on

I'm not sure if that'll work (I'm at work right now and I can't test) but that formula should work. Also, lemme ask you, what does that "sleep" command do? Double as a frame rate controller or something?

Hope I helped,