+ Use the ARROW KEYS to move and rotate. + Toggle editor mode with SPACE. + Load a compressed map by pressing L. You can get a compressed map by copying the CODE variable on the editor screen. (Share in the comments if you like). + In editor mode, draw with the MOUSE. + In editor mode, you are located at the orange dot. Can't draw there!
@Wes64 for original idea. Good codes: 21002F46661084626F66F64621086662F4000 21000FFE0027FA40A5EA52A50A5FA4027FE000