color tweaks

1 files changed, 23 insertions, 13 deletions

diff --git a/watch-co2.sh b/watch-co2.sh
index 4a20708..1525635 100755
--- a/watch-co2.sh
+++ b/watch-co2.sh
@@ -5,9 +5,10 @@ topic="$1"
 host="${2-mqtt}"
 
 # config
-low="600"      # green
-medium="1000"  # yellow
-high="2000"    # red
+l1="500"     # green
+l2="1000"    # yellow
+l3="1500"    # red
+l4="2000"    # purple
 sleep="60"
 
 ######################################################################################
@@ -27,21 +28,20 @@ function tty_reset() {
 function colorize_ppm() {
     local ppm="$1"
 
-    if test $ppm -lt $low; then
+    if test $ppm -lt $l1; then
 	tty_rgb 0 255 0
-#	echo "$ppm: low"
-    elif test $ppm -lt $medium; then
-	red=$(( ($ppm - $low) * 255 / ($medium - $low) ))
+    elif test $ppm -lt $l2; then
+	red=$(( ($ppm - $l1) * 255 / ($l2 - $l1) ))
 	tty_rgb $red 255 0
-#	echo "$ppm: low-medium: red $red"
-    elif test $ppm -lt $high; then
-	green=$(( ($ppm - $medium) * 255 / ($high - $medium) ))
+    elif test $ppm -lt $l3; then
+	green=$(( ($ppm - $l2) * 255 / ($l3 - $l2) ))
 	green=$(( 255 - $green ))
 	tty_rgb 255 $green 0
-#	echo "$ppm: medium-high: green $green"
+    elif test $ppm -lt $l4; then
+	blue=$(( ($ppm - $l3) * 255 / ($l4 - $l3) ))
+	tty_rgb 255 0 $blue
     else
-	tty_rgb 255 0 0
-#	echo "$ppm: high"
+	tty_rgb 255 0 255
     fi
 }
 
@@ -55,6 +55,16 @@ function show_ppm() {
 
 ######################################################################################
 
+if test "$topic" = "test"; then
+    for ppm in $(seq $l1 50 $l4); do
+	colorize_ppm $ppm
+	echo -n " -*- test -*- $ppm -*-"
+	tty_reset
+	echo ""
+    done
+    exit 0
+fi
+
 if test -f /var/lib/scd/values.json; then
     # direct mode
     while true; do