add mechanism for building alternate firmware images

movement/make/.gitignore

@@ -1 +1,2 @@
 build/
+firmware/

movement/make/make_alternate_fw.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+fw_dir="firmware/download"
+sim_dir="firmware/simulate"
+colors=("green" "blue")
+variants=("standard" "alt_time" "deep_space_now" "focus" "the_athlete" "the_backpacker" "the_stargazer")
+
+if [ -d "$fw_dir" ] ; then
+    rm -r "$fw_dir"
+fi
+if [ -d "$sim_dir" ] ; then
+    rm -r "$sim_dir"
+fi
+
+mkdir -p "$fw_dir"
+mkdir -p "$sim_dir"
+
+for variant in "${variants[@]}"
+do
+    VARIANT=$(echo "$variant" | tr '[:lower:]' '[:upper:]')
+    for color in "${colors[@]}"
+    do
+        COLOR=$(echo "$color" | tr '[:lower:]' '[:upper:]')
+        make clean
+        make LED=$COLOR FIRMWARE=$VARIANT
+        mv "build/watch.uf2" "$fw_dir/$variant-$color.uf2"
+    done
+    make clean
+    emmake make FIRMWARE=$VARIANT
+    mkdir "$sim_dir/$variant/"
+    mv "build/watch.wasm" "$sim_dir/$variant/"
+    mv "build/watch.js" "$sim_dir/$variant/"
+    mv "build/watch.html" "$sim_dir/$variant/index.html"
+done
+
+echo "Done."