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def normalize(value):
abvalue = 0
for v in value:
abvalue = abvalue + v**2
abvalue = abvalue**(0.5)
if abvalue:
for v in value:
v = v / abvalue
return value
def crossed(value1, value2, border):
if (value1 <= border and value2 > border) or (value1 >= border and value2 < border):
return True
else:
return False
def absvector(value):
abvalue = 0
for v in value:
abvalue = abvalue + v**2
abvalue = abvalue**(0.5)
return abvalue
class Sphere:
def __init__(self, x, y, radius):
self.x = x
self.y = y
self.radius = radius
return
def collidesphere(self, sphere2):
dist = absvector((self.x - sphere2.x, self.y - sphere2.y))
radiuses = (self.radius + sphere2.radius)
if dist < radiuses:
return True
else:
return False
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