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TheGreatOne

Fri Jun 10, 2011 5:06 pm


Need help with a turing eraser

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What is it you are trying to achieve?
I'm trying to create an eraser as a part of my turing project. 

What is the problem you are having?
I don't know the exact code to do that. 

Describe what you have tried to solve this problem
I tried putting a loop, for loop, changing dot color to white, etc

Post any relevant code (You may choose to attach the file instead of posting the code if it is too long)
N/A

Please specify what version of Turing you are using
4.0


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apython1992

Fri Jun 10, 2011 5:39 pm


RE:Need help with a turing eraser

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If you've tried putting loops and changing the dot color to white, why don't you post that code?


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feebas200

Fri Jun 10, 2011 9:05 pm


RE:Need help with a turing eraser

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use mouse where and then draw white oval or square/rectangle when the mouse is pressed.


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DanShadow

Sat Jun 11, 2011 2:08 am


RE:Need help with a turing eraser

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The method offered by feebas200 is the one i'd also recommend.

If the background of your program is white, the action of "erasing" something is just returning the color of a particular portion of the screen back to the background color.

So code in a mouse click statement, use mouse.where and draw a white circle/square where the user clicked.
To emulate an MS Paint style eraser, you could have your code continue to draw a white circle/square the mouse co-ordinates while mouse button 1 is down, and stop when it is released.