def __init__(self):
self.pathstorage = Pathstorage()
self.obstacle_map = [[]]
self.fifo = Fifo(self)
self.islands = Islands()
#TODO: searching Islands!
self.jobs = [] # contains all pathfindingjobs
def __init__(self): self.pathstorage = Pathstorage() self.obstacle_map = [[]] self.fifo = Fifo(self) self.islands = Islands() #TODO: searching Islands! self.jobs = [] # contains all pathfindingjobs
def __init__(self):
self.pathstorage = Pathstorage()
self.obstacle_map = [[]]
self.fifo = Fifo(self)
self.islands = Islands()
self.jobs = {} # contains all pathfindingjobs
self.job_ID = 0 # the ID for a pathfindingjob - must be unique
class Pathmanager: """ Organizes the pathfinding. Can start serveral threads, realizes the two-tiered pathfinding, cares about the obstaclemap ... There is one Pathmanager per match. He cares about all pathrequest from all players. """ # TODO: ObstacleMap def __init__(self): self.pathstorage = Pathstorage() self.obstacle_map = [[]] self.fifo = Fifo(self) self.islands = Islands() #TODO: searching Islands! self.jobs = [] # contains all pathfindingjobs def addJob(self, reference, start, end): """ @param reference: the reference of the instance of the settler who needs the path @param start: the startnode @param end: the endnode """ self.jobs.append(threading.Thread(target = self.findPath, args=(reference,start,end))) self.jobs[len(self.jobs)-1].start() def returnJob(self): """ Returns a path to the unit. Called by the FIFO. """ while not self.fifo.isEmpty(): job = self.fifo.pop() #print job reference = job.keys() reference.callbackPath(job[reference]) #pass def findPath(self, reference, start, end): """ Start computing the Path. @param reference: the reference of the settler who needs the path @param start: the startnode @param end: the endnode """ if self.islands.sameIsland(start, end): pf = Pathfinder(self.pathstorage) lock = threading.Lock() # computing the (macro)path: path = pf.aStar(start, end, None) # obstaclemap is None for testing # TODO: if both nodes are at the same island, there should be a path every time # if a macropath was computed: if abs(path[0][0] - path[1][0]) > 1 or abs(path[0][1] - path[1][1]) > 1: macro_path = path last_index = len(path) - 1 #path = [] i = 0 # only every second node of the macro path is used for node in macro_path: if i%2 == 0 and i+2 < last_index: temp_path = pf.aStar(node, macro_path[i+2], None) lock.acquire() # because only one thread should access the one FIFO self.fifo.add(reference, temp_path) lock.release() #print temp_path #for item in temp_path: # path.append(item) time.sleep(2) elif i%2 == 0: # endnode is closer than one macrostep temp_path = pf.aStar(node, end, None) lock.acquire() self.fifo.add(reference, temp_path) lock.release() #print temp_path #for item in temp_path: # path.append(item) break i = i + 1 else: # its a short path (no macropath needed) lock.acquire() self.fifo.add(reference, path) lock.release() else: # start- and endpoint not at the same island - no path can be computed lock.acquire() self.fifo.add(reference, None) lock.release() #print path def findIslands(self): """ Let the class Islands find and store islands. """ #self.updateObstaclemap() self.islands.searchIslands(self.obstacle_map) def updateObstaclemap(self): """ Be up to date. Checks every node wheather it is blocked (permanently, not by units) or not. """ pass
class Pathmanager:
"""
Organizes the pathfinding. Can start serveral threads, realizes the two-tiered
pathfinding, cares about the obstaclemap ...
There is one Pathmanager per match. He cares about all pathrequest from all players.
"""
# TODO: ObstacleMap
def __init__(self):
self.pathstorage = Pathstorage()
self.obstacle_map = [[]]
self.fifo = Fifo(self)
self.islands = Islands()
#TODO: searching Islands!
self.jobs = [] # contains all pathfindingjobs
def addJob(self, reference, start, end):
"""
@param reference: the reference of the instance of the settler who needs the path
@param start: the startnode
@param end: the endnode
"""
self.jobs.append(
threading.Thread(target=self.findPath,
args=(reference, start, end)))
self.jobs[len(self.jobs) - 1].start()
def returnJob(self):
"""
Returns a path to the unit. Called by the FIFO.
"""
while not self.fifo.isEmpty():
job = self.fifo.pop()
#print job
reference = job.keys()
reference.callbackPath(job[reference])
#pass
def findPath(self, reference, start, end):
"""
Start computing the Path.
@param reference: the reference of the settler who needs the path
@param start: the startnode
@param end: the endnode
"""
if self.islands.sameIsland(start, end):
pf = Pathfinder(self.pathstorage)
lock = threading.Lock()
# computing the (macro)path:
path = pf.aStar(start, end,
None) # obstaclemap is None for testing
# TODO: if both nodes are at the same island, there should be a path every time
# if a macropath was computed:
if abs(path[0][0] - path[1][0]) > 1 or abs(path[0][1] -
path[1][1]) > 1:
macro_path = path
last_index = len(path) - 1
#path = []
i = 0 # only every second node of the macro path is used
for node in macro_path:
if i % 2 == 0 and i + 2 < last_index:
temp_path = pf.aStar(node, macro_path[i + 2], None)
lock.acquire(
) # because only one thread should access the one FIFO
self.fifo.add(reference, temp_path)
lock.release()
#print temp_path
#for item in temp_path:
# path.append(item)
time.sleep(2)
elif i % 2 == 0: # endnode is closer than one macrostep
temp_path = pf.aStar(node, end, None)
lock.acquire()
self.fifo.add(reference, temp_path)
lock.release()
#print temp_path
#for item in temp_path:
# path.append(item)
break
i = i + 1
else: # its a short path (no macropath needed)
lock.acquire()
self.fifo.add(reference, path)
lock.release()
else: # start- and endpoint not at the same island - no path can be computed
lock.acquire()
self.fifo.add(reference, None)
lock.release()
#print path
def findIslands(self):
"""
Let the class Islands find and store islands.
"""
#self.updateObstaclemap()
self.islands.searchIslands(self.obstacle_map)
def updateObstaclemap(self):
"""
Be up to date. Checks every node wheather it is blocked (permanently, not by units) or not.
"""
pass
