!!!!!!!! The map file are on unix format (\n) and not \r\lf

File Format
-----------
line 1	: (name) name of the map
line 2	: (nextmap) name of the next map or "END" to specify last level.
line 3	: (w) width of the map
line 4	: (h) height of the map
lines 5 
     to	: map datas.  
    5+h


here are the symbols for the map datas
--------------------------------------
f -> ground
s -> scale
u -> down end of a scale.
d -> up end of a scale.
b -> begin
e -> end
k -> key
# -> blank case
