Diff: check_state_change.cpp

Revision:

0:fc6fa085d591

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/check_state_change.cpp	Fri Oct 23 13:14:57 2015 +0000
@@ -0,0 +1,51 @@
+/*
+ * check_state_change.cpp
+ *
+ *  Created on: Oct 20, 2015
+ *      Author: User
+ */
+
+#include "mbed.h"
+#include <iostream>
+
+//threashold to turn on the system if it is off
+double threashold_turn_on = 10;
+
+//threashold to turn of the system if it is on
+double threashold_turn_off = 9;
+
+void check_state_change(std::string &state, std::string newState, int &num_on_inputs, double &threashold)
+{
+    if (state == newState)
+    {
+        //add one to the count to track how long the muscle is tense for (update() moves motor if tensed for 0.25s)
+    	//if at rest then still tracked but update function will not move the motor only reset num_on_inputs
+    	num_on_inputs++;
+
+    }
+    else
+    {
+        //state change so reset the values of on inputs
+        num_on_inputs = 0;
+        //change state to newState
+        state = newState;
+
+        //change the threashold as there has been a change of state
+        if (newState == "rest")
+        {
+        	//we know the system has switched from on to off so set threashold to turn on threashold
+        	threashold = threashold_turn_on;
+        }
+
+        else
+        {
+        	//we know the system has switched from rest to left, right, or keypress i.e. off to on
+        	threashold = threashold_turn_off;
+        }
+    }
+}
+
+
+
+
+