Waterways script - color variations

generate_json_solar.sh

#!/usr/bin/env bash
# Generates 10-slot wallpapper solar JSONs from 6-stage image sets

set -euo pipefail

DIR="/Users/Shared/Wallpapers/WaterWays_Processed"
cd "$DIR" || { echo "bad path: $DIR"; exit 1; }

# 10-stage full-day solar path: altitude (°) and azimuth (°)
ALT=(60 40 20 5 -5 -15 -5 5 20 40)      # noon to night and back
AZI=(180 135 90 60 30 0 330 300 270 225) # South → East → North → West arc

# Image indices to use for each slot (0-based into 6 images)
IMG_IDX=(0 1 2 3 4 5 4 3 2 1)  # mirror usage

# Total entries
STAGE_COUNT=${#ALT[@]}

# Process all *_stage_1.jpg image sets
for img in *_stage_1.jpg; do
  base=${img/_stage_1.jpg/}              # e.g. Waterway1_Mac
  json="${base}_wallpaper.json"          # target JSON file
  echo "• Generating ${json} (10-stage solar)"
  tmp=$(mktemp)

  {
    echo "["
    for ((i = 0; i < STAGE_COUNT; i++)); do
      comma=$([[ $i -lt $((STAGE_COUNT - 1)) ]] && echo "," || echo "")
      img_idx=${IMG_IDX[$i]}

      # Construct file reference
      filename="${base}_stage_$((img_idx + 1)).jpg"
      altitude="${ALT[$i]}"
      azimuth="${AZI[$i]}"

      printf '  { "fileName": "%s", "altitude": %.2f, "azimuth": %.2f' \
        "$filename" "$altitude" "$azimuth"

      # Add light/dark/primary flags
      [[ $i == 0 ]] && printf ', "isPrimary": true, "isForLight": true'
      [[ $i == 5 ]] && printf ', "isForDark": true'

      printf ' }%s\n' "$comma"
    done
    echo "]"
  } > "$tmp"

  # Move if generated successfully
  if [ -s "$tmp" ]; then
    mv "$tmp" "$json"
    echo "✓ $json written"
  else
    echo "Error: Failed to generate $json"
    rm -f "$tmp"
    exit 1
  fi
done

make_waterways_stages.sh

#!/bin/bash

# Set input and output folders
INPUT_DIR="/Users/Shared/Wallpapers/WaterWays"
OUTPUT_DIR="/Users/Shared/Wallpapers/WaterWays_Processed"
mkdir -p "$OUTPUT_DIR"

# Requires: imagemagick, libheif (for heif-convert)
command -v magick >/dev/null || { echo "ImageMagick (magick) is required."; exit 1; }
command -v heif-convert >/dev/null || { echo "libheif's heif-convert is required."; exit 1; }

for heic in "$INPUT_DIR"/*.heic; do
  base=$(basename "$heic" .heic)
  temp_jpg="$OUTPUT_DIR/${base}_light.jpg"

  echo "Extracting from: $heic"
  heif-convert "$heic" "$temp_jpg" >/dev/null

  echo "Generating stages for: $base"
  for i in {1..6}; do
    case $i in
      1) b=1.00; s=1.00; t=0 ;;
      2) b=0.80; s=0.90; t=5 ;;
      3) b=0.65; s=0.75; t=7 ;;
      4) b=0.50; s=0.60; t=10 ;;
      5) b=0.40; s=0.50; t=12 ;;
      6) b=0.38; s=0.50; t=20 ;;
    esac

    magick "$temp_jpg" \
      -modulate $(echo "$b*100" | bc),$(echo "$s*100" | bc),100 \
      -fill "rgb($t%,$t%,$((t+5))%)" -colorize $t \
      "$OUTPUT_DIR/${base}_stage_$i.jpg"
  done
done

echo "All done."