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# stores and manages clue DB
# also manages currently available bike teams
import router
import csv, time
# time since last ping before deactivating/deleting
BIKE_TIMEOUT = 60
BIKE_DELETE = 1800 # time before bike deletes itself
# data structures
class Point:
def __init__(self, lat, long):
self.longitude = long
self.latitude = lat
def toJSON(self):
json_dict = {'longitude' : self.longitude,
'latitude' : self.latitude}
return json_dict
def setCoords(self, lat, long):
self.longitude = long
self.latitude = lat
def move(self, d_lat, d_long):
self.longitude += d_long
self.latitude += d_lat
def __str__(self):
return f"{self.longitude},{self.latitude}"
class Clue(Point):
def __init__(self, lat, long, name, info, status):
self.longitude = long
self.latitude = lat
self.name = name
self.info = info
self.status = status # UNVISITED | ASSIGNED | VISITED
def visit(self):
self.status = "VISITED"
def toJSON(self):
json_dict = {'longitude' : self.longitude,
'latitude' : self.latitude,
'clue_name' : self.name.replace('"', "'"),
'clue_info' : self.info.replace('"', "'"),
'clue_status' : self.status}
return json_dict
class Bike(Point):
def __init__(self, lat, long, name, status):
self.longitude = long
self.latitude = lat
self.name = name
self.last_contact = time.time()
self.target = "N/A"
self.route_to_next = [] # list of coords if target isnt' N/A
self.status = status # ACTIVE | INACTIVE
def setTarget(self, clue_name):
self.target = clue_name
def ping(self):
self.status = "ACTIVE"
self.last_contact = time.time()
def checkStatus(self):
if time.time() - self.last_contact > BIKE_TIMEOUT:
self.status = "INACTIVE"
self.target = "N/A"
if time.time() - self.last_contact > BIKE_DELETE:
return -1
return 0
def toJSON(self):
json_dict = {'longitude' : self.longitude,
'latitude' : self.latitude,
'time_since_last_contact' : time.time()-self.last_contact,
'team_name' : self.name,
'team_status' : self.status,
'target_clue' : self.target}
return json_dict
# variables
homeBase = Point(42.340226, -71.088395) # krentzman, can be changed on dashboard
clues = []
bikes = []
assigned_clues = []
clues_last_changed = time.time()
home_last_changed = time.time()
# called every time a node is added
# a bike is added/removed
# determines/assigns clusters, and assigns routes to bikes
def updateRoutes():
clusters = router.getClusters(bikes, clues, homeBase)
# interface functions
def getTime():
return time.time()
def getHomeBaseJSON(timestamp):
if timestamp < 0 or home_last_changed - timestamp > 0:
return homeBase.toJSON()
return False
def setHomeBase(latitude, longitude):
homeBase.setCoords(latitude, longitude)
home_last_changed = time.time()
def addBike(team_name, latitude, longitude):
for bike in bikes:
if bike.name == team_name: # already exists
bike.ping()
bike.setCoords(latitude, longitude)
return # return code indicating already exists, although status still OK
newBike = Bike(latitude, longitude, team_name, "ACTIVE")
bikes.append(newBike)
def pingBike(team_name, latitude, longitude):
for bike in bikes:
if bike.name == team_name:
bike.ping()
bike.setCoords(latitude, longitude)
break
else: # bike team does not exist yet
newBike = Bike(latitude, longitude, team_name, "ACTIVE")
bikes.append(newBike)
def getBikesJSON():
global bikes
bikes = [x for x in bikes if x.checkStatus() >= 0]
return [x.toJSON() for x in bikes]
def getCluesJSON(timestamp):
if timestamp < 0 or clues_last_changed - timestamp > 0:
return [x.toJSON() for x in clues]
return False
def addClue(clue_name, clue_info, longitude, latitude, visited="UNVISITED"):
newClue = Clue(latitude, longitude, clue_name, clue_info, visited)
clues.append(newClue)
clues_last_changed = time.time()
def deleteClue(clue_name):
for i, clue in enumereate(clues):
if clue.name == clue_name:
clues.pop(i)
clues_last_changed = time.time()
break
def visitClue(clue_name):
for clue in clues:
if clue.name == clue_name:
clue.visit()
clues_last_changed = time.time()
# junk for testing
with open("all_clues.csv", newline='') as f:
csvreader = csv.reader(f, delimiter=',', quotechar='"')
i = 1
for row in csvreader:
coords = row[1].split(",")
coords[0] = float(coords[0]); coords[1] = float(coords[1]);
newClue = Clue(coords[0], coords[1], f"Clue #{i}", row[0], "UNVISITED" if i < 50 else "VISITED")
clues.append(newClue)
i += 1
bike1 = Bike(42.340226, -71.088395, 'speedster', 'ACTIVE')
bike2 = Bike(42.320226, -71.100395, 'slowpoke', "ACTIVE")
bike1.setTarget("Clue #6")
def moveBike2Test():
bike1.move(0, -0.001); bike1.ping();
bikes.append(bike1); bikes.append(bike2)
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