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annotate gamelib/misc.py @ 80:ad9d1bc7ef0c

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Kill foxes that don't reach safety
author Neil Muller <drnlmuller@gmail.com>
date Tue, 01 Sep 2009 11:21:43 +0000
parents 18db99fda6bd
children e90068d1f374
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18db99fda6bd Move spawing code from engine to gameboard - seems more natural.
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1 # Holder for misc useful classes
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2
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3 class Position(object):
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4 """2D position / vector"""
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5
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6 def __init__(self, x, y):
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7 self.x = x
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8 self.y = y
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9
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10 def to_tuple(self):
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11 return self.x, self.y
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12
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13 def dist(self, b):
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14 """Gives the distance to another position"""
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15
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16 return abs(self.x - b.x) + abs(self.y - b.y)
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17
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18 def __sub__(self, b):
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19 return Position(self.x - b.x, self.y - b.y)
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20
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21 def __add__(self, b):
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22 return Position(self.x + b.x, self.y + b.y)
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23
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24 def left_of(self, b):
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25 return self.x < b.x
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26
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27 def right_of(self, b):
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28 return self.x > b.x
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29
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30 def __eq__(self, b):
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31 return self.x == b.x and self.y == b.y