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1 file changed, 24 insertions
going-places.chr(file creato)
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| 1 | + | go_back, travel_sym(Id), at(FutureLocation) | |
| 2 | + | , history(GrandparentId, LastLocation, ParentId), history(ParentId, Location) | |
| 3 | + | <=> history(GrandparentId, LastLocation) | |
| 4 | + | , at(Location) | |
| 5 | + | , travel_sym(ParentId) | |
| 6 | + | ||
| 7 | + | go_back, travel_sym(FutureID), at(FutureLocation), history(Id, Location) | |
| 8 | + | <=> at(Location) | |
| 9 | + | , travel_sym(Id) | |
| 10 | + | ||
| 11 | + | go_back <=> nowhere_to_go | |
| 12 | + | ||
| 13 | + | go_to(NewLocation), at(Location), history(ParentId, LastLocation), travel_sym(Id) | |
| 14 | + | <=> history(ParentId, LastLocation, Id), history(Id, Location) | |
| 15 | + | , at(NewLocation) | |
| 16 | + | , travel_sym(Id + 1) | |
| 17 | + | ||
| 18 | + | ||
| 19 | + | go_to(NewLocation), travel_sym(Id), at(Location) | |
| 20 | + | <=> history(Id, Location) | |
| 21 | + | , at(NewLocation) | |
| 22 | + | , travel_sym(Id + 1) | |
| 23 | + | ||
| 24 | + | start <=> at("Home"), travel_sym(0) | |
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