Use the arrows to move the target and mouse or space to draw but your mouse must be in the frame to draw. As the codes are too long to comment please post them here: https://scratch.mit.edu/discuss/topic/166896/?page=1#post-1586390
Note: this is in alpha so it will be buggy. Please report bugs in the comments if are not here: * loading does not always load every square. (Fixed!) Update log: * 6th Nov 2015 A(0.7)(requested by @huskydog125): * added an undo button. * added a redo button. * 6th Nov 2015 A(0.6): * A few tweaks. * 6th Nov 2015 A(0.5): * Project shared in alpha.