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Copy pathday25.py
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day25.py
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# intcode computer function - from Day 9
# but modified to print ascii messages
import random
import numpy as np
def intcode_computer(input_commands, program):
halt = False
cnt = 0
output_vals = []
relative_base = 0
cntInputs = 0
cntInputCommands = 0
movement_commands = ['north', 'south', 'east', 'west']
itemListAhead = False
sensitiveFloorAhead = False
gotFeedback = False
pickedAllItems = False
availableItems = []
items = []
goodItems = []
cntPickedItems = 0
badItems = ['giant electromagnet', 'molten lava', 'escape pod', 'infinite loop', 'photons']
while halt == False:
optcode = program[cnt]
if optcode%10 == 3:
if len(input_commands) == 0: # if no input command, move randomly
ind = random.randint(0,3)
input_commands = [str2ascii(movement_commands[ind])]
input_val = input_commands[cntInputCommands][cntInputs]
pointer_increase = 2
if str(optcode).zfill(2)[0] == '2':
program[program[cnt+1] + relative_base] = input_val
else:
program[program[cnt+1]] = input_val
cntInputs += 1
if input_val == 10:
print('Input command: ' + ascii2str(input_commands[cntInputCommands]))
cntInputCommands += 1
cntInputs = 0
if cntInputCommands >= len(input_commands):
input_commands = []
cntInputCommands = 0
elif optcode%10 == 4:
pointer_increase = 2
if str(optcode).zfill(2)[0]=='1':
# immediate mode
output_vals.append(program[cnt+1])
elif str(optcode).zfill(2)[0]=='0':
# parameter mode
output_vals.append(program[program[cnt+1]])
elif str(optcode).zfill(2)[0]=='2':
# relative mode
#output_vals.append(program[cnt+1] + relative_base)
output_vals.append(program[program[cnt+1] + relative_base])
else:
print('bad mode ' + str(optcode).zfill(2)[0])
if output_vals[-1]==10:
print(ascii2str(output_vals))
if len(goodItems)>=8 and ascii2str(output_vals).startswith('In the next room, a pressure-sensitive'):
sensitiveFloorAhead = True
if sensitiveFloorAhead == True and ascii2str(output_vals).startswith('Command?'):
pickedAllItems = True
if len(goodItems)==8:
if len(availableItems) == 0:
# drop all items here
input_commands = []
for item in goodItems:
input_commands.append(str2ascii('drop ' + item))
availableItems.append(item)
else:
# pick up a random item until finished
itemToPick = np.random.choice(availableItems, 1)[0]
availableItems.remove(itemToPick)
cntPickedItems += 1
input_commands = [str2ascii('take ' + itemToPick)]
if len(availableItems)==0:
cntPickedItems = 0
sensitiveFloorAhead = False
if ascii2str(output_vals).startswith('Items here:') and not pickedAllItems:
itemListAhead = True
if itemListAhead and ascii2str(output_vals).startswith('- ') and not pickedAllItems:
items.append(ascii2str(output_vals)[2:-1])
if items[-1] not in badItems:
goodItems.append(items[-1])
input_commands = [str2ascii('take ' + goodItems[-1])]
if itemListAhead and ascii2str(output_vals).startswith('Command?') and not pickedAllItems:
itemListAhead = False
output_vals = []
elif optcode%10 in (1, 2):
pointer_increase = 4
if str(optcode).zfill(5)[2]=='0':
first = program[program[cnt+1]]
elif str(optcode).zfill(5)[2]=='1':
first = program[cnt+1]
elif str(optcode).zfill(5)[2]=='2':
# relative mode
first = program[program[cnt+1] + relative_base]
else:
print('bad mode ' + str(optcode).zfill(4)[1])
if str(optcode).zfill(5)[1]=='0':
second = program[program[cnt+2]]
elif str(optcode).zfill(5)[1]=='1':
second = program[cnt+2]
elif str(optcode).zfill(5)[1]=='2':
# relative mode
second = program[program[cnt+2] + relative_base]
else:
print('bad mode ' + str(optcode).zfill(4)[0])
if optcode%10 == 1:
if str(optcode).zfill(5)[0]=='2':
program[program[cnt+3] + relative_base] = first+second
else:
program[program[cnt+3]] = first + second
else:
if str(optcode).zfill(5)[0]=='2':
program[program[cnt+3] + relative_base] = first*second
else:
program[program[cnt+3]] = first*second
# part 2:
elif optcode%10 in (5, 6, 7, 8):
if str(optcode).zfill(5)[2]=='0':
first = program[program[cnt+1]]
elif str(optcode).zfill(5)[2]=='1':
first = program[cnt+1]
elif str(optcode).zfill(5)[2]=='2':
first = program[program[cnt+1] + relative_base]
else:
print('bad mode ' + str(optcode).zfill(4)[1])
if str(optcode).zfill(5)[1]=='0':
second = program[program[cnt+2]]
elif str(optcode).zfill(5)[1]=='1':
second = program[cnt+2]
elif str(optcode).zfill(5)[1]=='2':
second = program[program[cnt+2] + relative_base]
else:
print('bad mode ' + str(optcode).zfill(4)[0])
if optcode%10 == 5:
if first!=0:
cnt = second
continue
else:
pointer_increase = 3
elif optcode%10 == 6:
if first==0:
cnt = second
continue
else:
pointer_increase = 3
elif optcode%10 == 7:
pointer_increase = 4
if first<second:
if str(optcode).zfill(5)[0]=='2':
program[program[cnt+3] + relative_base] = 1
else:
program[program[cnt+3]] = 1
else:
if str(optcode).zfill(5)[0]=='2':
program[program[cnt+3] + relative_base] = 0
else:
program[program[cnt+3]] = 0
else:
pointer_increase = 4
if first == second:
if str(optcode).zfill(5)[0]=='2':
program[program[cnt+3] + relative_base] = 1
else:
program[program[cnt+3]] = 1
else:
if str(optcode).zfill(5)[0]=='2':
program[program[cnt+3] + relative_base] = 0
else:
program[program[cnt+3]] = 0
elif optcode%10==9 and optcode !=99:
#relative_base += program[cnt+1]
pointer_increase = 2
if str(optcode).zfill(2)[0] == '2':
relative_base += program[program[cnt+1] + relative_base]
elif str(optcode).zfill(2)[0] == '1':
relative_base += program[cnt+1]
else:
relative_base += program[program[cnt+1]]
elif optcode == 99:
halt = True
else:
print('Bad opt code ' + str(optcode) + \
' at position ' + str(cnt))
break
cnt += pointer_increase
return output_vals, program
def ascii2str(lst):
res = ''
for item in lst:
res += chr(item)
return res
def str2ascii(cmd):
res = []
for c in cmd:
res.append(ord(c))
res.append(10) # end with newline char
return res
f = open('input25.txt','r')
txt = f.read()
txt = txt.split('\n')
txt = txt[0].split(',')
puzzle_input = [int(a) for a in txt]
# increase memory:
puzzle_input += [0 for i in range(100000)]
# part 1
# this takes a while to finish...
output, program = intcode_computer([], puzzle_input)