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How to write a bot
==================
guarantee code indicates something you can run which will execute without errors
if "input" refers to a valid board.
input = {
# the object you control
# guarantee code:
# me = input["whoami"]
# my = input["objects"][me]
# assert my["type"] == "snake"
# (see below for more guarantees)
"whoami": "a",
# the board is by a torus by default (wraps around horiz & vert),
# but maps will have walls on all the edges to disable this.
# guarantee code:
# for row in input["board"]:
# for item in row:
# assert item in input["objects"]
"board": [
["W", "W", "W", "W", "W", "W"],
["W", " ", "*", " ", " ", "W"],
["W", "a", " ", "b", "b", "W"],
["W", " ", " ", " ", " ", "W"],
["W", "W", "W", "W", "W", "W"]
],
# each object refers to a type of "thing" which can be in the board.
# guarantee code:
# for key, thing in input["objects"].items():
# if thing["type"] == "snake":
# assert "valid_moves" in thing
# x, y = thing["head"]
# assert input["board"][y][x] == key
# elif thing["type"] == "special":
# for effect in thing["effects"]:
# assert effect[0] in ("die", "grow")
# else:
# raise TypeError("invalid thing type")
"objects": {
"a": {
"type": "snake",
"head": [1, 2],
"valid_moves": {
"L": [0, 2],
"R": [2, 2],
"U": [1, 1],
"D": [1, 3]
}
},
"b": {
"type": "snake",
"head": [4, 2],
"valid_moves": {
"L": [3, 2],
"R": [5, 2],
"U": [4, 1],
"D": [4, 3]
}
},
"W": {
"type": "special",
"effects": [
["die"]
]
},
"*": { # represents an apple
"type": "special",
"effects": [
["grow", 1]
]
}
}
}
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