Simple2DMachine

Simple2DMachine is an esolang.

Introduce

Simple2DMachine is a cell-based esolang like Langton’s ant or 2D Turing machine.

Commands

/Don’t remove it!
/*Shh!
Be quiet!*/                                Comments
#{}                                        Define default settings
  (''CellMap/RLE''):''pos'',''direction''  Define default patterns, position and direction
''state_name''{''commands''}               Define the commands of ''state_name''
>''state_name''                            Switch into ''state_name''
(''commands'')                             Block
-f                                         Go forward
-b                                         Go backward
-r                                         Turn right
-l                                         Turn left
!''char''                                  Write down ''char''
?''char''(''commands'')                    If ''char'' on cell, run ''commands''

Note: 
The cell is default “ ”;
Commands like -f-l-b is equal to -flb;
If the ''state_name'' or ''char'' is more than one character, use () to quote it.

Examples

Hello, world!

a{-f!H-f!e-f!l-f!l-f!o-f-f!w-f!o-f!r-f!l-f!d-f-!}

Langton’s ant

a{? (!o-fr)?o(! -fl)>a}

Binary adder

#{num1
num2}:(''NumLength''+1,2),W
a{-fl?0(-f?0(-f?+(!1)? (!0))?1(-f?+(!0-rf!+-bl)? (!1)))?1(-f?0(-f?+(!0-rf!+-bl)? (!1))?1(-f?+(!1-rf!+-bl)? (?(!0-rf!+-bl))))-bbr>a}

/*
Example:
#{0011001
01010111}:(8,2)W

Result:
0011001
0101011
1000100
*/