Go readability is best readability

flappybash.sh

@@ -10,14 +10,14 @@ H2=$[H/2]
 H4=$[H/4]
 
 DT=0.05  # 20 FPS
-G=2  # minimum height of pipe gap (is double this number)
+G=2  # minimum height of the pipe gap (is double this number)
 
 KEY=.  # last pressed key (dot is ignored)
 X=2
 Y=$H2
 VY=0  # vertical velocity
 AY=100  # vertical acceleration
-DEAD=0
+D=0
 # current pipe is stored as an array of $H chars
 P=( )  # start as empty array
 PX=''  # pipe's current X
@@ -42,7 +42,7 @@ tick() {
     # the -le check below is bad and I should feel bad, but doing it properly
     # (i.e. keeping previous and current value of PX, and checking if X is in between)
     # probably won't fit within the limit; oh well, maybe I'll try that later
-    if [ $PX -le $X ] && [ ${P[tY]} = '#' ]; then DEAD=1; exit; fi
+    if [ $PX -le $X ] && [ ${P[tY]} = '#' ]; then D=1; exit; fi
     if [ $PX -le 0 ]; then S=$[S+1]; np; fi
 
     # Draw
@@ -52,45 +52,46 @@ tick() {
 
     # draw the pipe
     for ((i=1; i<=$H; i++)); do
-        echo -en "\e[$i;${PX}f\e[1;32;49m${P[i]}"  # bold green-on-default
+        p $PX $i "\e[1;32;49m${P[i]}"  # bold green-on-default
     done
 
     # draw the player
-    echo -en "\e[$tY;${X}f\e[1;37;41mB"  # bold white-on-red
+    p $X $tY "\e[1;37;41mB"  # bold white-on-red
 
     # draw the score
-    echo -en "\e[2;`_ "$W2-5"`f\e[1;37;49mScore: $S"  # bold white-on-default
+    p `_ "$W2-5"` 2 "\e[1;37;49mScore: $S"  # bold white-on-default
 
     # schedule the next call of this function
     ( sleep $DT; kill -ALRM $$ ) &
 }
 
-# create a new pipe and place it all the way to right
+# create a new pipe and place it all the way to the right
 np() {
-    local u=$[H4+RANDOM % (H2-H4-G)]  # upper pipe is < this coordinate
-    local l=$[H2+G+RANDOM % (H2-H4-G)]  # lower pipe is >= this one
+    _u=$[H4+RANDOM%(H2-H4-G)]  # upper pipe is < this coordinate
+    _l=$[H2+G+RANDOM%(H2-H4-G)]  # lower pipe is >= this one
 
-    for ((i=1; i<$u; i++)) do P[i]='#'; done
-    for ((i=$u; i<$l; i++)) do P[i]=' '; done
-    for ((i=$l; i<=$H; i++)) do P[i]='#'; done
+    for ((i=1; i<$_u; i++)) do P[i]='#'; done
+    for ((i=$_u; i<$_l; i++)) do P[i]=' '; done
+    for ((i=$_l; i<=$H; i++)) do P[i]='#'; done
     PX=$[W-1]  # start from the right side
 }
 
 quit() {
-    trap : ALRM
     printf "\e[?12l\e[?25h"  # cursor on
     tput rmcup
     echo -en "\e[0m"
     clear
-    if [ $DEAD -gt 0 ]; then printf "score:$S (diff:-$W)\ngit gud\n"; fi
+    if [ $D -gt 0 ]; then printf "score:$S (diff:-$W)\ngit gud\n"; fi
     exit
 }
 
 
+# put text at given position: p $x $y $text
+p() { echo -en "\e[$2;${1}f$3"; }
 # wrapper over bc (basic POSIX calculator) that makes all computations shorter
 _() { echo "$*" | bc; }
 # truncate fractional part
-t() { printf "%.*f" 0 "$1"; }
+t() { printf "%.*f" 0 $1; }
 
 
 #

minify.py

@@ -37,7 +37,7 @@ def main(argv):
         r';(\w+)\(\)', lambda m: '; %s()' % m.group(1), minified)
     minified = minified.replace('&;}', '&}')
 
-    print("#!/bin/bash")
+    print(source.splitlines()[0])  # copy the original shebang
     print(minified)