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world.py
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world.py
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import stackless
import os
from time import time
from random import random, randint
from PIL import Image, ImageDraw
from pyqtree import Index
import networkx as nx
os.makedirs("anim", exist_ok=True)
from utils import distance, Every
class World:
def __init__(self, width=800, height=600, radius=300,runtime=100):
self.width = width
self.height = height
self.radius = radius
self.runtime = runtime
self.peerid = 0
self.peers = []
self.selected_peer = None
self.index = None
self.movingpeers = False
self.csend = 0
self.crecv = 0
self.every = Every(1)
self.it = 0
self.totalobjectives = 0
self.clearedobjectives = 0
self.objectives = []
self.flagbandwidth = None
self.flagavglag = None
self.doneobjectives = []
self.connectivity = []
self.events = []
self.worldstats = ""
def add(self, peercls):
peer = peercls()
peer.pos = [random()*self.width, random()*self.height]
peer.pid = self.peerid
self.peerid += 1
self.peers.append(peer)
return peer
def add_peers(self, cls, count, ensureconnected=True):
attempts = 1
while True:
for p in range(count):
self.add(cls)
if not ensureconnected or self.connected_components() == 1:
break
self.peers = []
self.peerid = 0
print("Generation attempt "+str(attempts)+" failed...")
attempts += 1
print("Peer network generated after "+str(attempts)+" attempts.")
def connected_components(self):
edges = []
index = Index((0,0,self.width,self.height))
for peer in self.peers:
index.insert(peer.pid, (peer.pos[0],peer.pos[1],peer.pos[0]+1,peer.pos[1]+1))
for peer in self.peers:
edges.append([peer.pid, peer.pid])#to detect if fully connected, nodes without connections have to be added to
for pid in index.intersect((peer.pos[0]-self.radius,peer.pos[1]-self.radius,peer.pos[0]+1+self.radius,peer.pos[1]+1+self.radius)):
peer2 = self.peers[pid]
dist = distance(peer.pos, peer2.pos)
if peer2 != peer and dist<self.radius:
edges.append([peer.pid, pid])
graph = nx.Graph(edges)
return nx.number_connected_components(graph)
def env(self):
for peer in self.peers:
flag = {"type":"flag", "hop":0, "target":randint(0,len(self.peers)-1), "data":random(), "creation":self.it}
peer.flagin.append(flag)
self.objectives.append(flag)
self.totalobjectives = len(self.objectives)
def check(self):
now = time()
for obj in self.objectives:
target = self.peers[obj["target"]]
for flag in target.flagout:
if obj["data"] == flag["data"]:
print("Received flag after %i hops" % obj["hop"])
# Ignore double submissions
if obj in self.objectives:
self.objectives.remove(obj)
self.clearedobjectives += 1
flag["capture"] = self.it
self.doneobjectives.append(flag)
target.flagout.remove(flag)
# total flag bandwidth vs current (last n steps)
# Time vs steps
self.flagbandwidth = len(self.doneobjectives)/self.it#flags/iteration
# TODO visualize distribution
# Include those not done?
if len(self.doneobjectives) > 0:
self.flagavglag = sum([flag["capture"]-flag["creation"] for flag in self.doneobjectives])/len(self.doneobjectives)
#count false flags at the end
def init(self):
"""Called after adding peers, initializes flags and time"""
self.start = time()
self.env()
def run(self):
self.init()
#while time()<start+self.runtime:
while self.it<100:
self.update()
def update(self):
self.events = []
# Peers may be moving
self.connectivity = []
simstart = time()
if self.index is None or self.movingpeers:
self.index = Index((0,0,self.width,self.height))
for peer in self.peers:#randomize order
self.index.insert(peer.pid, (peer.pos[0],peer.pos[1],peer.pos[0]+1,peer.pos[1]+1))
for peer in self.peers:
peer.task.insert()
stackless.run(10000)#run for n seconds?#randint(500,3000))
peer.task.remove()
self.csend += len(peer.sendarr)
for pid in self.index.intersect((peer.pos[0]-self.radius,peer.pos[1]-self.radius,peer.pos[0]+1+self.radius,peer.pos[1]+1+self.radius)):
peer2 = self.peers[pid]
dist = distance(peer.pos, peer2.pos)
if peer2 != peer and dist<self.radius:#10/dist>random():
self.connectivity.append([peer, peer2, ""])
for msg in peer.sendarr:
#TODO package loss probability & distance loss
peer2.recv(msg)#aah, all packets sent at once! not realistic
self.events.append([peer, peer2, msg])
self.crecv += 1
peer.sendarr = []
#peer.pos = [(p+(random()-0.5)*0.2)%self.size for p in peer.pos]
self.it += 1
simend = time()
if self.every:
#os.system("clear")
self.cbacklog = sum([len(peer.recvarr) for peer in self.peers])
keptflags = sum([len([msg for msg in peer.recvarr if msg["content"]["type"] == "flag"])])#and not own flags
self.check()
FlagAvgLag = self.flagavglag if self.flagavglag else float("NaN")
InvFlagBandw = 1.0/self.flagbandwidth if self.flagbandwidth else float("NaN")
roundresult = "ITER:{} FPS:{} Sent:{} Recv:{} Backlog:{} AvgBacklog:{:.2f} Flags:{} Cleared:{} Kept:{} FlAvgLag: {:.2f}it InvFlBw: {:.2f}it/fl".format(
self.it, int(1/(simend-simstart)), self.csend, self.crecv, self.cbacklog, self.cbacklog/len(self.peers), self.totalobjectives, self.clearedobjectives, keptflags, FlagAvgLag, InvFlagBandw)
print(roundresult)
self.worldstats = roundresult
#self.draw()
def draw(self):
img = Image.new("RGB", (self.width, self.height))
draw = ImageDraw.Draw(img)
for peer in self.peers:
color = (0,0,255)
if peer.pid == 0:
color = (255,255,255)
color = (min(255,len(peer.recvarr)),0,255)
draw.rectangle(peer.pos+[peer.pos[0]+1,peer.pos[1]+1], color)
img.save("anim/%i.png" % self.it)