def createBoids(numBoids):
'''create numboids boids and randomize position'''
boundaryPos = boundary.getPosition()
boundaryDim = boundary.getSpawnDimensions()
for i in range(numBoids):
b = Boid("boid{0}".format(i))
x = random.uniform(boundaryPos[0]-boundaryDim[0]/2, boundaryPos[0]+boundaryDim[0]/2)
y = random.uniform(boundaryPos[1]-boundaryDim[1]/2, boundaryPos[1]+boundaryDim[1]/2)
z = random.uniform(boundaryPos[2]-boundaryDim[2]/2, boundaryPos[2]+boundaryDim[2]/2)
b.setPosition(x, y, z)
boids.append(b)
print 'creating boids done'
