def goMapping(freq=30):
global myMap,q
# Parameters
RED_BALL = 4
GREEN_BALL = 5
myMap.initMapping()
while not q:
start = time.time()
sensorPoints = ct.getSensorPoints()
pose = ct.getPose()
balls = [x for x in v.getAreas(pose) if v.isBall(x)]
knownBalls = []
for b in balls:
bc = v.getBallCoords(b,pose)
if bc is not None:
knownBalls.append(bc)
# Mapping update
myMap.robotPositioned(ctypes.c_double(pose[0]), ctypes.c_double(pose[1]))
for a in knownBalls:
myMap.ballDetected(ctypes.c_double(a[0]),ctypes.c_double(a[1]),ctypes.c_int(RED_BALL))
for s in sensorPoints:
if(s[2]):
myMap.wallDetected(ctypes.c_double(s[0]), ctypes.c_double(s[1]))
else:
myMap.wallNotDetected(ctypes.c_double(s[0]), ctypes.c_double(s[1]))
time.sleep(max(0,1.0/float(freq) - (time.time()-start)))
def goSim(freq=50.0):
global myMap,q,mapThread,pygameThread
q = False
mapThread = threading.Thread(target=goMapping)
pygameThread = threading.Thread(target=goPygame)
ct.initialize()
v.initialize()
mapThread.start()
pygameThread.start()
FOLLOW = 0
GRAB = 1
APPROACH_ORIENT = 2
APPROACH_GO = 3
SPIN = 4
spinDuration = 5.0
spinStart = time.time()
state = FOLLOW
ct.setWallFollowControl()
startTime = time.time()
while not q and ((time.time()-startTime) <= 3*60):
start = time.time()
pose = ct.getPose()
myMap.setConfigSpace()
balls = [x for x in v.getAreas(pose)if v.isBall(x)
and canDrive(pose,getPoint(pose,v.getAreaAngle(x,pose),driveDistance))]
knownBalls = []
for b in balls:
bc = v.getBallCoords(b,pose)
if bc is not None and canDrive(pose, bc):
knownBalls.append(bc)
if state == FOLLOW:
if len(knownBalls) != 0:
state = GRAB
print "Heading to grab ball"
ct.setWayPointControl()
ct.addWayPoints([[a[0],a[1],0,False] for a in knownBalls])
elif len(balls) != 0:
state = APPROACH_ORIENT
print "Going towards ball 0"
ct.setWayPointControl()
ct.addWayPoints([[pose[0],pose[1],v.getAreaAngle(balls[0],pose),True]])
elif state == GRAB:
if ct.waitingForCommand():
if len(knownBalls) != 0:
ct.addWayPoints([[a[0],a[1],0,False] for a in knownBalls])
else:
ct.setBasicControl(angular=2.0)
state = SPIN
spinStart = time.time()
elif state == APPROACH_ORIENT:
if ct.waitingForCommand():
state = APPROACH_GO
ct.setBasicControl(forward=6.0)
elif state == APPROACH_GO:
if len(knownBalls) != 0:
state = GRAB
print "Heading to grab ball"
ct.setWayPointControl()
ct.addWayPoints([[a[0],a[1],0,False] for a in knownBalls])
elif not ct.movingForward():
state = FOLLOW
ct.setWallFollowControl()
elif state == SPIN:
if len(knownBalls) != 0:
state = GRAB
ct.setWayPointControl()
ct.addWayPoints([[a[0],a[1],0,False] for a in knownBalls])
elif len(balls) != 0:
state = APPROACH_ORIENT
ct.setWayPointControl()
ct.addWayPoints([[pose[0],pose[1],v.getAreaAngle(balls[0],pose),True]])
elif time.time()-spinStart >= spinDuration:
ct.setWallFollowControl()
state = FOLLOW
time.sleep(max(0,1.0/freq - (time.time()-start)))
cleanQuit('','')
