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#!/bin/usr/env python
"""
Script to rudementarally model spiders colonising new terrain, and the effect
that could have on increasing the nutrient levels.
"""
import numpy as np
class Terrain:
""" Terrain class represents the terrain over which the model is run.
field: Shape of the terrain, and nutrient values
field_mask: mask for various attributes of the field (bit mask?)
"""
def __init__(self, size_x=10, size_y=10):
""" Create a new field of size_x by size_y """
self.field = np.zeros(shape=(size_x, size_y), dtype=int)
self.field_mask = np.ones(shape=(size_x, size_y), dtype=bool)
def print_terrain(self):
""" Display the field """
print(f"Terrain:\n"
f"{self.field}\n"
f"Terrain mask:\n"
f"{self.field_mask}\n"
)
class Critter:
""" Basic class for a creature that can appear, modify the terrain, and
procreate or die. """
def __init__(self, nutrient_value=1, pos_x=0, pos_y=0, lifespan=10):
self.nutrient_value = nutrient_value
self.pos_x = pos_x
self.pos_y = pos_y
self.lifespan = lifespan
def live(self):
""" Live another tick, decrement lifespan, and resolve """
print("Living another tick")
self.lifespan -= 1
if not self.lifespan:
print("Expires!")
# self.expire()
return self.lifespan
def get_position(self):
""" Return the position of the critter """
return self.pos_x, self.pos_y
def expire(self):
""" Death of the critter """
return self.nutrient_value
def main():
""" main function, do stuff """
board = Terrain()
board.print_terrain()
spider1 = Critter()
print("\nSpider1 left", spider1.expire(), "nutrients behind.")
if __name__ == '__main__':
main()
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