Created
October 31, 2018 19:14
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Python script to generate a PDDL format problem for the hanoi problem. For use with hanoi-domain.pddl.
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num_disks = 15 | |
num_pegs = 3 | |
disks = ['disk%d' % (i+1) for i in range(num_disks)] | |
pegs = ['peg%d' % (i+1) for i in range(num_pegs)] | |
filename = 'hanoi-problem.pddl' | |
init = ['(clear disk1)'] | |
goals = ['(clear disk1)'] | |
for i in range(1,num_pegs): | |
init.append('(clear peg%d)' % (i+1)) | |
for i in range(num_pegs-1): | |
goals.append('(clear peg%d)' % (i+1)) | |
for i in range(num_disks-1): | |
temp_str = '(on disk%d disk%d)' % (i+1,i+2) | |
init.append(temp_str) | |
goals.append(temp_str) | |
init.append('(on disk%d peg%d)' % (num_disks,1)) | |
goals.append('(on disk%d peg%d)' % (num_disks,num_pegs)) | |
for i in range(num_disks-1): | |
for j in range(i+1,num_disks): | |
init.append('(smaller disk%d disk%d)' % (i+1,j+1)) | |
for i in range(num_pegs): | |
for j in range(num_disks): | |
init.append('(smaller disk%d peg%d)' % (j+1,i+1)) | |
problemstr = '''(define (problem hanoi-problem) (:domain hanoi-domain) | |
(:objects | |
%s - disk | |
%s - peg | |
) | |
(:init | |
(= (cost) 0) | |
%s | |
) | |
(:goal | |
(and | |
%s | |
) | |
) | |
(:metric minimize(cost)) | |
)''' % ( ' '.join(disks), ' '.join(pegs), '\n '.join(init), '\n '.join(goals) ) | |
with open(filename,"w") as f: | |
f.write(problemstr) |
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