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Copy pathpuzzle13_part2.py
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146 lines (138 loc) · 5.63 KB
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from puzzle09 import load_addr, load_param, write, is_valid
def get_player_ball_ntiles(prints):
player, ball = None, None
screen = dict()
for x, y, tile_id in zip(prints[::3], prints[1::3], prints[2::3]):
if x >= 0:
if tile_id == 3:
player = x, y
elif tile_id == 4:
ball = x, y
pixel = x - 1j * y
screen[pixel] = tile_id
ntiles = sum([1 for val in screen.values() if val == 2])
return player, ball, ntiles
def run_with_gameai(input_program, input_values):
program = input_program[:]
index = 0
relative_base = 0
extra_mem = {}
prints = []
while True:
instruction = program[index]
op_str = f"{instruction:05}" # pad with zeros if necessary
op = op_str[-2:]
mode_param3, mode_param2, mode_param1 = op_str[0], op_str[1], op_str[2]
jump = False
# add
if op == '01':
nincrement = 4
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
param2 = load_param(program, index + 2, mode_param2, extra_mem, relative_base)
write_addr = load_addr(program, index + 3, mode_param3, relative_base)
write(program, write_addr, param1 + param2, extra_mem)
index += nincrement
# multiply
elif op == '02':
nincrement = 4
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
param2 = load_param(program, index + 2, mode_param2, extra_mem, relative_base)
write_addr = load_addr(program, index + 3, mode_param3, relative_base)
write(program, write_addr, param1 * param2, extra_mem)
index += nincrement
# input_value written to address
elif op == '03':
nincrement = 2
write_addr = load_addr(program, index + 1, mode_param1, relative_base)
if len(input_values) > 0:
input_value = input_values.pop(0)
else:
# determine move automatically with "AI"
player, ball, ntiles = get_player_ball_ntiles(prints)
assert player is not None
assert ball is not None
if ball[0] > player[0]:
move = 1 # right
elif ball[0] < player[0]:
move = -1 # left
else:
move = 0 # neutral
input_value = move
if ntiles == 0:
return program, prints, False
write(program, write_addr, input_value, extra_mem)
index += nincrement
# output parameter
elif op == '04':
nincrement = 2
addr = load_addr(program, index + 1, mode_param1, relative_base)
if is_valid(addr, program):
prints.append(program[addr])
elif addr in extra_mem:
prints.append(extra_mem[addr])
else:
raise ValueError
index += nincrement
# jump if true
elif op == '05':
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
param2 = load_param(program, index + 2, mode_param2, extra_mem, relative_base)
if param1 != 0:
index = param2
else:
nincrement = 3
index += nincrement
# jump if false
elif op == '06':
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
param2 = load_param(program, index + 2, mode_param2, extra_mem, relative_base)
if param1 == 0:
index = param2
else:
nincrement = 3
index += nincrement
# less than
elif op == '07':
nincrement = 4
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
param2 = load_param(program, index + 2, mode_param2, extra_mem, relative_base)
write_addr = load_addr(program, index + 3, mode_param3, relative_base)
if param1 < param2: # strict?
write(program, write_addr, 1, extra_mem)
else:
write(program, write_addr, 0, extra_mem)
index += nincrement
# equals
elif op == '08':
nincrement = 4
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
param2 = load_param(program, index + 2, mode_param2, extra_mem, relative_base)
write_addr = load_addr(program, index + 3, mode_param3, relative_base)
if param1 == param2:
write(program, write_addr, 1, extra_mem)
else:
write(program, write_addr, 0, extra_mem)
index += nincrement
# adjust relative base
elif op == '09':
param1 = load_param(program, index + 1, mode_param1, extra_mem, relative_base)
relative_base += param1
index += 2
# end program
elif op == '99':
return program, prints, True
else:
raise NotImplementedError()
def prints2score(prints, debug=False):
scores = []
for x, y, tile_id in zip(prints[::3], prints[1::3], prints[2::3]):
if x == -1:
if debug: print(f"score: {tile_id}")
scores.append(tile_id)
return scores
# part2
program = list(map(int, open('data/input13').read().split(',')))
program[0] = 2
state, prints, is_finished = run_with_gameai(program, input_values=[])
scores = prints2score(prints)
print(f"solution for part2: {scores[-1]}")