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-rw-r--r--mapGen/README.md32
-rw-r--r--mapGen/examples/banner.jpgbin0 -> 36988 bytes
-rwxr-xr-xmapGen/mapGen.sh71
3 files changed, 59 insertions, 44 deletions
diff --git a/mapGen/README.md b/mapGen/README.md
index c64a940..3af03f0 100644
--- a/mapGen/README.md
+++ b/mapGen/README.md
@@ -1,6 +1,6 @@
# mapGen.sh
-A shellscript to make grid maps from text files.
+A shellscript to make grid maps from text input.
![Simple map example](examples/simpleBig.jpg)
@@ -20,17 +20,17 @@ xxxxx
## Motivation
-The want for Vim to be a map maker.
+Using Vim as a map maker.
## Concept
-Given a text file in which each character represents a cell, have a script draw that map.
+Given a text input in which each character represents a cell, have a script draw that map.
-`mapGen.sh` takes as input a text file which ideally has a block of characters of any size but of
-rectangular shape with no missing ones. It also takes a folder in which tile images are supposed to
-be. For each character in the file it randomly takes one image in that folder which name starts
-with that character and composes it into the map image with the help of the `convert` command from
-ImageMagick.
+`mapGen.sh` takes as input a text file or standard input which ideally has a block of characters of
+any size but of rectangular shape with no missing ones. It also takes a folder in which tile images
+are supposed to be. For each character in the input it randomly takes one image in that folder which
+name starts with that character and composes it into the map image with the help of the `convert`
+command from ImageMagick.
## Examples
@@ -70,13 +70,21 @@ XXXXXXXXXooXXXXXXXXX
```
Note that for the second image a different folder with some missing tiles where used (no tiles
-starting by D or S). The script puts a red pixel there and the cyan background is seen, indicating
-this absence.
+starting by D or S). Absent tiles are skipped. This allows for different inputs to be used as
+layers: one could have the map and other add annotations to cells by using tiles with transparency,
+for example. Note that the target file will only be created if it did not exist and will be drawn on
+top if it did exist.
+
+![Unix rules! example](examples/banner.jpg)
+
+```
+figlet -f banner 'Unix Rules!' | tr ' #' 'Xo' | mapGen.sh -f dg
+```
## Usage
```
-mapGen.sh [-s SIZE] [-f TILE_FOLDER] [-o OUTPUT_FILE] SOURCE_FILE
+mapGen.sh [-s SIZE] [-f TILE_FOLDER] [-o OUTPUT_FILE] [SOURCE_FILE]
```
Where
@@ -86,6 +94,8 @@ Where
- `OUTPUT_FILE` is the path to the resulting image (default `out.jpg`),
- and `SOURCE_FILE` is the text file with the layout of the map.
+If `SOURCE_FILE` is not provided standard input will be used.
+
## Possibilities
The direct mapping of characters in text file to beginning of tile image name gives flexibility to
diff --git a/mapGen/examples/banner.jpg b/mapGen/examples/banner.jpg
new file mode 100644
index 0000000..927e1c8
--- /dev/null
+++ b/mapGen/examples/banner.jpg
Binary files differ
diff --git a/mapGen/mapGen.sh b/mapGen/mapGen.sh
index 0d77637..5568308 100755
--- a/mapGen/mapGen.sh
+++ b/mapGen/mapGen.sh
@@ -4,13 +4,46 @@
#
# Generate a map with ImageMagick from an input text file
#
-# Usage: mapGen.sh [-s SIZE] [-f TILE_FOLDER] [-o OUTPUT_FILE] SOURCE_FILE
+# Usage: mapGen.sh [-s SIZE] [-f TILE_FOLDER] [-o OUTPUT_FILE] [SOURCE_FILE]
-usageMsg="Usage: mapGen.sh [-s SIZE] [-f TILE_FOLDER] [-o OUTPUT_FILE] SOURCE_FILE"
+usageMsg="Usage: mapGen.sh [-s SIZE] [-f TILE_FOLDER] [-o OUTPUT_FILE] [SOURCE_FILE]"
cellSize=8
tilesDir="./tiles"
outputFile="out.jpg"
+drawMap () {
+ mapText=""
+ while read line; do
+ mapText="${mapText}${line}\n"
+ done
+ mapText="$(echo "$mapText" | sed 's|\\n|\n|g')"
+
+ height="$(echo "$mapText" | wc -l)"
+ #width="$(awk '{print length($0)}' "$inputFile" | sort -nr | sed 1q)"
+ width="$(echo "$mapText" | awk '{print length($0)}' | sort -nr | sed 1q)"
+ height=$((height*cellSize))
+ width=$((width*cellSize))
+
+ [ ! -f "$outputFile" ] && convert -size "$width"x"$height" xc:cyan "$outputFile"
+
+ row=0
+ col=0
+ echo "$mapText" | (
+ while read line; do
+ echo "$line" | (
+ while read -n1 char; do
+ tileFile="$(find $tilesDir -type f -maxdepth 1 | sed 's|.*/||' | grep "^$char" | shuf | sed 1q)"
+ if [ -n "$tileFile" ]; then
+ tileFile="${tilesDir}/${tileFile}"
+ convert "$outputFile" "$tileFile" -geometry +"$col"+"$row" -composite "$outputFile"
+ fi
+ col=$((col+cellSize))
+ done)
+ row=$((row+cellSize))
+ col=0
+ done)
+}
+
while echo "$1" | grep '^-' >/dev/null; do
case "$1" in
"-s")
@@ -30,36 +63,8 @@ while echo "$1" | grep '^-' >/dev/null; do
esac
done
-[ -z "$1" ] && echo "$usageMsg" >&2 && exit 1
-
+[ ! -d "$tilesDir" ] && echo "Directory not found: $tilesDir" >&2 && exit 1
inputFile="$1"
-
+[ -z "$inputFile" ] && drawMap && exit
[ ! -f "$inputFile" ] && echo "File not found: $inputFile" >&2 && exit 1
-[ ! -d "$tilesDir" ] && echo "Directory not found: $tilesDir" >&2 && exit 1
-
-height="$(wc -l <"$inputFile")"
-width="$(awk '{print length($0)}' "$inputFile" | sort -nr | sed 1q)"
-
-height=$((height*cellSize))
-width=$((width*cellSize))
-
-echo $width $height
-
-convert -size "$width"x"$height" xc:cyan "$outputFile"
-
-row=0
-col=0
-
-while read line; do
- echo "$line" | (
- while read -n1 char; do
- tileFile="$(find $tilesDir | sed 's|.*/||' | grep "^$char" | shuf | sed 1q)"
- tileFile="${tilesDir}/${tileFile}"
- echo "$tileFile" | wc -l | grep 1 >/dev/null || continue
- convert "$outputFile" "$tileFile" -geometry +"$col"+"$row" -composite "$outputFile" ||
- convert "$outputFile" -fill red -draw "point $col,$row" "$outputFile"
- col=$((col+cellSize))
- done)
- row=$((row+cellSize))
- col=0
-done <"$inputFile"
+drawMap <"$inputFile"