zaitsev85 / message-from-space Goto Github PK

The application of the square symbol to an arrow-enclosed sequence of plot commands results in an image being displayed.

Line 1: do nothing (plot command list is empty)
Line 2: the plot command takes two arguments. When these arguments are both 1, display a single dot one pixel in (in both directions) from the top left of the screen.
Line 3: the last argument describes vertical displacement. When the first argument is 1, and the second argument is 2, display a single dot two pixels down and one across from the top left of the screen.
Line 4: demonstrates a pixel at (2 across, 5 down)
Line 5: multiple plotting commands are separated by a bar. This puts one pixel at (1, 2) and one at (3, 1)
Line 6: this is a plotting command sequence that displays five pixels in a shape representing the grid number 2.

#44 is working on organizing the naming conventions and related context.

Hi,

I've got a question about the scoring equation given here:
https://message-from-space.readthedocs.io/en/latest/game.html#scoring
https://github.com/zaitsev85/message-from-space/blob/master/source/game.rst#scoring

score = \lfloor 50^{(50-rank)/50} \rfloor

Why do you use 50 in the exponent part of the formula? Shouldn't it be 49 (inclusive upper bound)?

score = \lfloor 50^{(49-rank)/49} \rfloor

It gives more natural “stretch” of the range:

17 apply func

Operator :10 (neg) converts from negative to positive, and vice versa.

This seems to describe a function that returns the nth index from a series of arguments, similar to [] notation in most programming languages.

Line 1: when applied to the argument combination 0 . x0 . x1, return x0 (i.e. the first argument)
Line 2: when applied to the argument combination 1 . x0 . x1, return x1 (i.e. the second argument)

It is not specified what happens when an out-of-range number is used.

Parser incorrectly parses and annotates filled blocks as x0. For example, in messages 24 and 29 these blocks are decoded as x0:

##
##

###
###
###

From trilader on Discord

#25 rotates the argument list to the right

:64170 (rtr)

The last item in a variable stream is removed and placed in front of the first item in the variable stream.

We need to maintain a table of the decided names for each generic symbol.

snd a b = b

fst a b = a

id
Returns the variable stream as is

Line 1 - Operator :7 (dis) distributes a variable across its children.

This operator takes two arguments and describes a hatched square fill operation.

Line 1: Arguments (7, 0). This is a square fill with a checkerboard pattern of side length 7.
Line 1: Arguments (13, 0). This is a square fill with a checkerboard pattern of side length 13.

My guess: the second argument describes the style of fill