[Coco] Obscure DRAW feature from ECB Unravelled

[Darren A.]

That syntax also works with the PLAY command.

Darren

-------



> I found this in the unravelled book:

> 

> ******************

> 

> There is a certain syntax that must be followed, which to my knowledge

> has not yet been published anywhere until now. Following is a short

> example of how to do this.

> 

>   10 A=10:B=13 

>   20 DRAW "BM=A;,A;;U=B;R=B;D=B;L=B"

> 

> The above program will draw a box that has sides equal to the variable

> 'B', as the program stands, line 20 is equivalent to the following: 

> 

>   20 DRAW "BM10,10;U13R13D13L13"

> 

> *************************

> 

> But there are two typos in the DRAW command. It should look like this:

> 

>   20 DRAW "BM=A;,=A;U=B;R=B;D=B;L=B;"

> 

> The vairable name has to begin with and equal and end with a semicolon.

> 

> Neat.

> 

> -- 

> tim lindner


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