Introduce virtual_clock in climate_chamber_dummy

Added internal function for simulated temperature

Python_script/climate_chamber_dummy.py

 #!/usr/bin/python3
 
+import virtual_time
+import prototype
 import time
+import math
+
 
 class ClimateChamberDummy:
     def __init__(self, ip_address, target_accuracy):
@@ -14,20 +18,38 @@ class ClimateChamberDummy:
         self.__ip_address = ip_address
         self.target_accuracy = target_accuracy
         # we try to connect to the climate chamber just to see if there is an error
-
-        self.simulated_temperature = 25
+        self.virtual_time = virtual_time.get_clock('localhost')
+        # local when simulating self.deltaT = self.target_temperature - self.read_temperature()[0]
+        self.last_simulation_time = self.virtual_time.time()
+        self.simulated_temperature = 25 # + self.deltaT *"slope"* self.deltat
         self.simulated_humidity = 35
         self.simulated_mode = 'OFF'
-        self.target_temperature = 40
-        self.target_humidity = 50
+        self.target_temperature = 25
+        self.target_humidity = 35
+        self.temperature_slope = 0.1  # 0.1 degrees/second
+
+    def _simulate_temp(self):
+        max_delta_temp = self.target_temperature - self.simulated_temperature
+        if max_delta_temp < 0:
+            direction = -1
+        else:
+            direction = 1
+        new_time = self.virtual_time.time()
+        delta_time = new_time - self.last_simulation_time
+
+        max_temp_change_in_delta_time = self.temperature_slope * delta_time
+
+        if abs(max_delta_temp) < max_temp_change_in_delta_time:
+            self.simulated_temperature = self.target_temperature
+        else:
+            self.simulated_temperature = self.simulated_temperature + direction * self.temperature_slope * delta_time
+
+        self.last_simulation_time = new_time
 
     # the communication section
 
     def read_temperature(self):
-        if self.simulated_temperature < self.target_temperature:
-            self.simulated_temperature += 0.1
-        elif self.simulated_temperature > self.target_temperature:
-            self.simulated_temperature -= 0.1
+        self._simulate_temp()
         # data format: [current temp, set temp, upper limit, lower limit]
         return [self.simulated_temperature, self.target_temperature, 0., 100.]