Update to install tkinter

.devcontainer/devcontainer.json

@@ -16,7 +16,7 @@
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],
 	// Use 'postCreateCommand' to run commands after the container is created.
-	"postCreateCommand": "pip3 install --user -r requirements.txt",
+	"postCreateCommand": "sudo apt-get update; sudo apt-get -y install python3-tk; pip3 install --user -r requirements.txt",
 	// Configure tool-specific properties.
 	// "customizations": {},
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.

requirements.txt

@@ -1 +0,0 @@
-tkinter

src/piston.py

@@ -7,9 +7,11 @@ import time
 is_pi = True
 try:
     import RPi.GPIO as GPIO
+    os.environ["DISPLAY"] = ":0"
     print("Detected Raspberry Pi!")
-except RuntimeError:
+except (ModuleNotFoundError, TypeError, RuntimeError):
     print("Detected not a Raspberry Pi!")
+    os.environ["DISPLAY"] = "192.168.1.133:0"
     is_pi = False
 
 
@@ -85,7 +87,7 @@ class PistonApp:
         self.manual_mode_var = tk.BooleanVar()
         self.manual_mode_var.set(False)
         self.manual_mode_checkbox = tk.Checkbutton(
-            self.root, text="Minecraft Mode", font=("Arial", 30), variable=self.manual_mode_var, command=self.toggle_manual_mode)
+            self.root, text="Manual Mode", font=("Arial", 30), variable=self.manual_mode_var, command=self.toggle_manual_mode)
         self.manual_mode_checkbox.pack()
 
         self.next_button = tk.Button(
@@ -137,6 +139,7 @@ class PistonApp:
         self.canvas.coords(self.connecting_rod, px, py, px2, py2)
 
     def animate_downstroke(self):
+        
         self.canvas.move(self.piston, 0, self.stroke_length)
         if self.stroke == 1:
             self.canvas.itemconfig(self.piston, fill='blue')
@@ -149,6 +152,7 @@ class PistonApp:
         self.stroke += 1
         self.rotate_crankshaft()
         self.last_stroke = 'down'
+
         if self.manual_mode:
             self.next_button.config(state='normal')
         self.canvas.update()
@@ -176,6 +180,8 @@ class PistonApp:
             self.next_button.config(state='normal')
         self.canvas.update()
         perform_movement_operation()
+        time.sleep(self.delay/1000)
+
         self.canvas.update()
         self.stroke_label.update()
 

system/etc/init.d/piston

@@ -0,0 +1,76 @@
+#!/bin/sh
+
+### BEGIN INIT INFO
+# Provides:          exampledaemon
+# Required-Start:    $local_fs $network $syslog
+# Required-Stop:     $local_fs $network $syslog
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Example
+# Description:       Example start-stop-daemon - Debian
+### END INIT INFO
+
+NAME="Piston Service"
+PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
+APPDIR="/root"
+APPBIN="/root/S99piston"
+APPARGS=""
+USER="root"
+GROUP="root"
+
+# Include functions
+set -e
+. /lib/lsb/init-functions
+
+start() {
+  printf "Starting '$NAME'... "
+  start-stop-daemon --start --chuid "$USER:$GROUP" --background --make-pidfile --pidfile /var/run/$NAME.pid --chdir "$APPDIR" --exec "$APPBIN" -- $APPARGS || true
+  printf "done\n"
+}
+
+#We need this function to ensure the whole process tree will be killed
+killtree() {
+    local _pid=$1
+    local _sig=${2-TERM}
+    for _child in $(ps -o pid --no-headers --ppid ${_pid}); do
+        killtree ${_child} ${_sig}
+    done
+    kill -${_sig} ${_pid}
+}
+
+stop() {
+  printf "Stopping '$NAME'... "
+  [ -z `cat /var/run/$NAME.pid 2>/dev/null` ] || \
+  while test -d /proc/$(cat /var/run/$NAME.pid); do
+    killtree $(cat /var/run/$NAME.pid) 15
+    sleep 0.5
+  done
+  [ -z `cat /var/run/$NAME.pid 2>/dev/null` ] || rm /var/run/$NAME.pid
+  printf "done\n"
+}
+
+status() {
+  status_of_proc -p /var/run/$NAME.pid "" $NAME && exit 0 || exit $?
+}
+
+case "$1" in
+  start)
+    start
+    ;;
+  stop)
+    stop
+    ;;
+  restart)
+    stop
+    start
+    ;;
+  status)
+    status
+    ;;
+  *)
+    echo "Usage: $NAME {start|stop|restart|status}" >&2
+    exit 1
+    ;;
+esac
+
+exit 0