Re: set on/off

[zehava wizman <zehavawi1@xxxxxxxxx>]

Hi Jeff & Daniel!
  thanks for your answers.
                  Zehava
           

Daniel Ajoy <da.ajoy@xxxxxxxxx> wrote:
  On 28 Oct 2006 at 7:22, Jeff Knope wrote:

> Perhaps someone else can answer your question.  When and how is the property 
> "on? used?

Hi,

In this file:
file:///c:/Program%20Files/LCSI/MicroWorlds%20Pro/Help/MWTopics/content/s3c3t2.htm

I found:

Instruction
set "t1 "on? "true

Equivalent to
clickon

Instruction
set "t1 "on? "false

Equivalent to
clickoff


Another similar way to what Jeff describes is:

Issue the following command in the Command Center:

turtlesown "open?


Modify the procedures in the following way:

to open_curtain
t1, setsh 21 wait 1
setsh 22 wait 1
setsh 23
setopen? "true
end

to close_curtain
t1, setsh 23 wait 1
setsh 22 wait 1
setsh 21
setopen? "false
end

to try
t1, ifelse open? [close_curtain][open_curtain]
end

then type the following command in the Command Center

open_curtain



Daniel
OpenWorld Learning




 
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