Fixed missing paste. Working part 1

2024/day-15/solution-1.sh

@@ -6,6 +6,7 @@ MAP_WIDTH=$(( $( head -1 "$MAP_FILE" | wc -c ) -1 ))
 #MAP_HEIGHT=$( < "$MAP_FILE" wc -l )
 
 # Load map
+read -r -a TEST_ARRAY <<< "$( < "$MAP_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' )"
 read -r -a MAP_ARRAY <<< "$( < "$MAP_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' )"
 printf "%s " "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH * 2 ))
 printf "\n"
@@ -40,6 +41,7 @@ LEFT=-1
 RIGHT=1
 
 # Iterate through directions
+MOVES=0
 while read -r DIRECTION
 do
 
@@ -69,9 +71,11 @@ do
     done
     if [[ ${MAP_ARRAY[$END_POSITION]} == '#' ]]
     then
+      printf "Next: %s End: %s Stacked boxes. No change.\n" "${MAP_ARRAY[$NEXT_POSITION]}" "${MAP_ARRAY[$END_POSITION]}"
       : # Boxes are stacked up against wall
     elif [[ ${MAP_ARRAY[$END_POSITION]} == "." ]]
     then
+      printf "Next: %s End: %s Robot: %s Move boxes and robot\n" "${MAP_ARRAY[$NEXT_POSITION]}" "${MAP_ARRAY[$END_POSITION]}" "${MAP_ARRAY[$ROBOT_POSITION]}"
       # Move the box
       MAP_ARRAY[END_POSITION]=O
       MAP_ARRAY[NEXT_POSITION]=.
@@ -82,16 +86,20 @@ do
     fi
   elif [[ ${MAP_ARRAY[$NEXT_POSITION]} == "#" ]] # Wall in front, do nothing
   then
-    continue
+    printf "Next: %s Skipping\n" "${MAP_ARRAY[$NEXT_POSITION]}"
+    :
   elif [[ ${MAP_ARRAY[$NEXT_POSITION]} == "." ]] # Empty space, move forward
   then
+    printf "Next: %s Move robot forward\n" "${MAP_ARRAY[$NEXT_POSITION]}"
     # Move the robot
     MAP_ARRAY[ROBOT_POSITION]=.
     ROBOT_POSITION=$NEXT_POSITION
     MAP_ARRAY[ROBOT_POSITION]=@
   fi
+  (( MOVES++ ))
 
-done <<< "$( < "$DIRECTIONS_FILE" sed -E 's/(.)(.)/\1 \2 /g' | tr ' ' '\n' )"
+done <<< "$( < "$DIRECTIONS_FILE" paste -s -d "" | sed -E 's/(.)(.)/\1 \2 /g' | tr ' ' '\n' )"
+printf "Moves: %s\n" "$MOVES"
 
 printf "%s " "${MAP_ARRAY[@]}" | fold -w $(( MAP_WIDTH * 2 ))
 printf "\n"
@@ -104,9 +112,24 @@ do
   if [[ ${MAP_ARRAY[i]} == "O" ]]
   then
     (( BOX_COUNT++ ))
-    (( SUM+=( (i / MAP_WIDTH) * 100 ) )) # Add Y axis
-    (( SUM+=( i % MAP_WIDTH ) )) # Add x axis
+    X=$(( i % MAP_WIDTH ))
+    Y=$(( i / MAP_WIDTH * 100 ))
+    GPS=$(( X + Y ))
+    printf "Box %s X: %s Y: %s GPS: %s\n" "$i" "$X" "$Y" "$GPS"
+    (( SUM+=GPS ))
   fi
 done
 printf "Sum: %s\n" "$SUM"
 printf "Box count: %s\n" "$BOX_COUNT"
+
+# Compare and test if walls have moved
+for (( i=0; i<MAP_LEN; i++ ))
+do
+  if [[ ${TEST_ARRAY[i]} == "#" ]]
+  then
+    if [[ ${TEST_ARRAY[i]} != "${MAP_ARRAY[i]}" ]]
+    then
+    printf "Index %s Wall changed.\n" "$i"
+    fi
+  fi
+done