1 files changed, 0 insertions, 810 deletions

@@ -1,810 +0,0 @@
-#include "generator.h"
-#include <algorithm>
-#include <iostream>
-#include <cstdlib>
-#include <cctype>
-#include <hkutil/string.h>
-
-verbly::filter Generator::MakeHintFilter(verbly::filter subfilter, Height height, Colour colour, FilterDirection filter_direction) const
-{
-  switch (colour) {
-    case kWhite: {
-      switch (height) {
-        case kBottom: {
-          return (verbly::word::synonyms %= subfilter);
-        }
-        case kTop: {
-          return (verbly::form::pronunciations %=
-            verbly::filter("homophones", false,
-              (verbly::pronunciation::forms %= (subfilter && verbly::filter(
-                verbly::form::id,
-                verbly::filter::comparison::field_does_not_equal,
-                verbly::form::id)))));
-        }
-        case kMiddle: {
-          return subfilter;
-        }
-        default: break; // Not supported yet.
-      }
-      break;
-    }
-    case kBlack: {
-      switch (height) {
-        case kBottom: {
-          return (verbly::word::antonyms %= subfilter);
-        }
-        case kMiddle: {
-          return (verbly::form::antogram %= subfilter);
-        }
-        case kTop: {
-          return (verbly::pronunciation::antophone %= subfilter);
-        }
-        default: break; // Not supported yet.
-      }
-      break;
-    }
-    case kBrown: {
-      break; // Not supported yet.
-    }
-    case kRed: {
-      switch (height) {
-        case kTop: {
-          if (filter_direction == kTowardSolution)
-          {
-            return (verbly::pronunciation::merophones %= subfilter);
-          } else {
-            return (verbly::pronunciation::holophones %= subfilter);
-          }
-        }
-        case kMiddle: {
-          if (filter_direction == kTowardSolution)
-          {
-            return (verbly::form::merographs %= subfilter);
-          } else {
-            return (verbly::form::holographs %= subfilter);
-          }
-        }
-        case kBottom: {
-          if (filter_direction == kTowardSolution)
-          {
-            return (verbly::notion::partMeronyms %=
-              verbly::filter("partMeronyms", false,
-                subfilter && verbly::filter(
-                  verbly::form::id,
-                  verbly::filter::comparison::field_does_not_equal,
-                  verbly::form::id)));
-          } else {
-            return (verbly::notion::partHolonyms %=
-              verbly::filter("partHolonyms", false,
-                subfilter && verbly::filter(
-                  verbly::form::id,
-                  verbly::filter::comparison::field_does_not_equal,
-                  verbly::form::id)));
-          }
-        }
-        default: break; // Not supported yet.
-      }
-      break;
-    }
-    case kBlue: {
-      switch (height) {
-        case kTop: {
-          if (filter_direction == kTowardSolution)
-          {
-            return (verbly::pronunciation::holophones %= subfilter);
-          } else {
-            return (verbly::pronunciation::merophones %= subfilter);
-          }
-        }
-        case kMiddle: {
-          if (filter_direction == kTowardSolution)
-          {
-            return (verbly::form::holographs %= subfilter);
-          } else {
-            return (verbly::form::merographs %= subfilter);
-          }
-        }
-        case kBottom: {
-          if (filter_direction == kTowardSolution)
-          {
-            return (verbly::notion::partHolonyms %=
-              verbly::filter("partHolonyms", false,
-                subfilter && verbly::filter(
-                  verbly::form::id,
-                  verbly::filter::comparison::field_does_not_equal,
-                  verbly::form::id)));
-          } else {
-            return (verbly::notion::partMeronyms %=
-              verbly::filter("partMeronyms", false,
-                subfilter && verbly::filter(
-                  verbly::form::id,
-                  verbly::filter::comparison::field_does_not_equal,
-                  verbly::form::id)));
-          }
-        }
-        default: break; // Not supported yet.
-      }
-      break;
-    }
-    case kPurple: {
-      switch (height) {
-        case kMiddle: {
-          return (verbly::form::holographs %=
-            verbly::filter("midpurp", false,
-              (verbly::form::length >= 4 && (verbly::form::merographs %=
-                (subfilter && verbly::filter(
-                  verbly::form::id,
-                  verbly::filter::comparison::field_does_not_equal,
-                  verbly::form::id))))));
-        }
-        case kTop: {
-          return (verbly::pronunciation::rhymes %= subfilter);
-        }
-        default: break; // Not supported yet.
-      }
-      break;
-    }
-    case kYellow: {
-      switch (height) {
-        case kTop: {
-          return (verbly::pronunciation::anaphones %= (subfilter && verbly::filter(
-                verbly::pronunciation::id,
-                verbly::filter::comparison::field_does_not_equal,
-                verbly::pronunciation::id)));
-        }
-        case kMiddle: {
-          return (verbly::form::anagrams %= (subfilter && verbly::filter(
-                verbly::form::id,
-                verbly::filter::comparison::field_does_not_equal,
-                verbly::form::id)));
-        }
-        default: break; // Not supported yet.
-      }
-      break;
-    }
-    case kGreen: {
-      if (filter_direction == kTowardSolution)
-      {
-        switch (height) {
-          case kBottom: {
-            verbly::filter whitelist =
-              (verbly::notion::wnid == 109287968)    // Geological formations
-              || (verbly::notion::wnid == 109208496) // Asterisms (collections of stars)
-              || (verbly::notion::wnid == 109239740) // Celestial bodies
-              || (verbly::notion::wnid == 109277686) // Exterrestrial objects (comets and meteroids)
-              || (verbly::notion::wnid == 109403211) // Radiators (supposedly natural radiators but actually these are just pictures of radiators)
-              || (verbly::notion::wnid == 109416076) // Rocks
-              || (verbly::notion::wnid == 105442131) // Chromosomes
-              || (verbly::notion::wnid == 100324978) // Tightrope walking
-              || (verbly::notion::wnid == 100326094) // Rock climbing
-              || (verbly::notion::wnid == 100433458) // Contact sports
-              || (verbly::notion::wnid == 100433802) // Gymnastics
-              || (verbly::notion::wnid == 100439826) // Track and field
-              || (verbly::notion::wnid == 100440747) // Skiing
-              || (verbly::notion::wnid == 100441824) // Water sport
-              || (verbly::notion::wnid == 100445351) // Rowing
-              || (verbly::notion::wnid == 100446980) // Archery
-                // TODO: add more sports
-              || (verbly::notion::wnid == 100021939) // Artifacts
-              || (verbly::notion::wnid == 101471682) // Vertebrates
-                ;
-
-            verbly::filter blacklist =
-              (verbly::notion::wnid == 106883725) // swastika
-              || (verbly::notion::wnid == 104416901) // tetraskele
-              || (verbly::notion::wnid == 102512053) // fish
-              || (verbly::notion::wnid == 103575691) // instrument of execution
-              || (verbly::notion::wnid == 103829563) // noose
-              || (verbly::notion::wnid == 103663910) // life support
-                ;
-
-            return subfilter
-              && (verbly::notion::fullHypernyms %= whitelist)
-              && !(verbly::notion::fullHypernyms %= blacklist)
-              && (verbly::notion::partOfSpeech == verbly::part_of_speech::noun)
-              && (verbly::notion::numOfImages >= 1);
-          }
-          case kMiddle: {
-            return subfilter;
-          }
-          default: break; // Never supported.
-        }
-      } else {
-        return (verbly::form::text == "picture");
-      }
-      break;
-    }
-    default: break; // Not supported yet.
-  }
-  return {};
-}
-
-std::string ApplyWanderlust(const std::string& word) {
-  std::string result;
-  for (char ch : word) {
-    if (ch == 'w') {
-      result += '1';
-    } else if (ch == 'a') {
-      result += '2';
-    } else if (ch == 'n') {
-      result += '3';
-    } else if (ch == 'd') {
-      result += '4';
-    } else if (ch == 'e') {
-      result += '5';
-    } else if (ch == 'r') {
-      result += '6';
-    } else if (ch == 'l') {
-      result += '7';
-    } else if (ch == 'u') {
-      result += '8';
-    } else if (ch == 's') {
-      result += '9';
-    } else if (ch == 't') {
-      result += '0';
-    } else if (ch == ' ') {
-      result += ' ';
-    }
-  }
-  return result;
-}
-
-void Generator::GenerateStaticPanel(std::string name, std::string question, std::string answer) {
-  SavePanel(name, question, answer.empty() ? question : answer, {});
-}
-
-void Generator::GenerateSinglePanel(std::string name, Height height, Colour colour, GenerateOptions options) {
-  while (!GenerateSinglePanelImpl(name, height, colour, options));
-}
-
-bool Generator::GenerateSinglePanelImpl(std::string name, Height height, Colour colour, GenerateOptions options) {
-  verbly::form solution;
-  if (options.reuse_solution) {
-    const std::string& word = reusable_.at(std::uniform_int_distribution<int>(0, reusable_.size()-1)(rng_));
-    if (options.max_answer_len > 0 && word.size() > options.max_answer_len) return false;
-    solution = database_->forms(verbly::form::text == word).first();
-  } else {
-    verbly::filter forward = MakeHintFilter({}, height, colour, kTowardSolution);
-    if (options.must_be_broad) {
-      forward &= MakeHintFilter({}, kBottom, kWhite, kTowardSolution);
-      forward &= MakeHintFilter({}, kBottom, kRed, kTowardSolution);
-      forward &= MakeHintFilter({}, kBottom, kBlue, kTowardSolution);
-    }
-    std::vector<verbly::form> solutions = database_->forms(forward && GetWordFilter(kTowardSolution, options)).all();
-    solution = solutions.front();//solutions.at(std::uniform_int_distribution<int>(0, solutions.size())(rng_));
-  }
-
-  if (!options.unique_pool.empty() && pools_[options.unique_pool].count(solution.getText())) {
-    return false;
-  }
-  if (options.palindrome != kPalindromeUnspecified) {
-    std::string reversed = solution.getText();
-    std::reverse(reversed.begin(), reversed.end());
-
-    if ((options.palindrome == kForcePalindrome && reversed != solution.getText()) ||
-      (options.palindrome == kRejectPalindrome && reversed == solution.getText())) {
-      return false;
-    }
-  }
-
-  // Finish early if this is a middle white.
-  if (height == kMiddle && colour == kWhite) {
-    SavePanel(name, solution.getText(), solution.getText(), options);
-    if (!options.copy_to.empty()) {
-      SavePanel(options.copy_to, solution.getText(), solution.getText(), options);
-    }
-    if (!options.copy_hidden.empty()) {
-      SavePanel(options.copy_hidden, std::string(solution.getText().size(), '?'), solution.getText(), options);
-    }
-    return true;
-  }
-
-  verbly::filter questionFilter = MakeHintFilter(solution, height, colour, kTowardQuestion);
-  std::vector<verbly::form> questions = database_->forms(questionFilter && GetWordFilter(kTowardQuestion, options)).all();//, verbly::order(verbly::form::id), 0).all();
-  if (questions.size() < 1) return false;
-  verbly::form question = questions.front();// questions.at(std::uniform_int_distribution<int>(0, questions.size())(rng_));
-
-  if (IsClueTrivial(height, colour, question, solution, options)) {
-    return false;
-  }
-  if (options.max_len_diff >= 0 && std::abs(static_cast<int>(question.getText().size() - solution.getText().size())) > options.max_len_diff) {
-    return false;
-  }
-
-  SavePanel(name, question.getText(), solution.getText(), options);
-  if (!options.copy_to.empty()) {
-    SavePanel(options.copy_to, question.getText(), solution.getText(), options);
-  }
-
-  return true;
-}
-
-void Generator::GenerateDoublePanel(std::string name1, std::string name2, Height height, Colour colour, GenerateOptions options) {
-  while (!GenerateDoublePanelImpl(name1, name2, height, colour, options));
-}
-
-bool Generator::GenerateDoublePanelImpl(std::string name1, std::string name2, Height height, Colour colour, GenerateOptions options) {
-  verbly::form solution;
-  if (options.reuse_solution) {
-    const std::string& word = reusable_.at(std::uniform_int_distribution<int>(0, reusable_.size()-1)(rng_));
-    if (options.max_answer_len > 0 && word.size() > options.max_answer_len) return false;
-    solution = database_->forms(verbly::form::text == word).first();
-  } else {
-    verbly::filter forward = MakeHintFilter({}, height, colour, kTowardSolution);
-    if (options.must_be_broad) {
-      forward &= MakeHintFilter({}, kBottom, kWhite, kTowardSolution);
-      forward &= MakeHintFilter({}, kBottom, kRed, kTowardSolution);
-      forward &= MakeHintFilter({}, kBottom, kBlue, kTowardSolution);
-    }
-    std::vector<verbly::form> solutions = database_->forms(forward && GetWordFilter(kTowardSolution, options)).all();
-    solution = solutions.front();//solutions.at(std::uniform_int_distribution<int>(0, solutions.size())(rng_));
-  }
-
-  if (!options.unique_pool.empty() && pools_[options.unique_pool].count(solution.getText())) {
-    return false;
-  }
-
-  // Finish early if this is a middle white.
-  if (height == kMiddle && colour == kWhite) {
-    SavePanel(name1, solution.getText(), solution.getText(), options);
-    SavePanel(name2, solution.getText(), solution.getText(), options);
-    return true;
-  }
-
-  verbly::filter questionFilter = MakeHintFilter(solution, height, colour, kTowardQuestion);
-  std::vector<verbly::form> questions = database_->forms(questionFilter && GetWordFilter(kTowardQuestion, options), {}, 2).all();
-  if (questions.size() < 2) return false;
-
-  //std::shuffle(questions.begin(), questions.end(), rng_);
-
-  if (IsClueTrivial(height, colour, questions[0], solution, options) || IsClueTrivial(height, colour, questions[1], solution, options)) {
-    return false;
-  }
-  if (options.max_len_diff >= 0) {
-    if (std::abs(static_cast<int>(questions[0].getText().size() - solution.getText().size())) > options.max_len_diff
-      || std::abs(static_cast<int>(questions[1].getText().size() - solution.getText().size())) > options.max_len_diff) {
-      return false;
-    }
-  }
-
-  SavePanel(name1, questions[0].getText(), solution.getText(), options);
-  SavePanel(name2, questions[1].getText(), solution.getText(), options);
-
-  return true;
-}
-
-void Generator::GenerateCohintedPanels(std::string name1, std::string name2, Height height, Colour colour, GenerateOptions options) {
-  while (!GenerateCohintedPanelsImpl(name1, name2, height, colour, options));
-}
-
-bool Generator::GenerateCohintedPanelsImpl(std::string name1, std::string name2, Height height, Colour colour, GenerateOptions options) {
-  verbly::filter backward = MakeHintFilter({}, height, colour, kTowardQuestion);
-  std::vector<verbly::form> questions = database_->forms(backward && GetWordFilter(kTowardQuestion, options)).all();//, verbly::order(verbly::form::id), 0).all();
-  verbly::form question = questions.front();// solutions.at(std::uniform_int_distribution<int>(0, solutions.size())(rng_));
-
-  // Finish early if this is a middle white.
-  if (height == kMiddle && colour == kWhite) {
-    SavePanel(name1, question.getText(), question.getText(), options);
-    SavePanel(name2, question.getText(), question.getText(), options);
-    return true;
-  }
-
-  verbly::filter solutionFilter = MakeHintFilter(question, height, colour, kTowardSolution);
-  std::vector<verbly::form> solutions = database_->forms(solutionFilter && GetWordFilter(kTowardSolution, options), {}, 2).all();
-  if (solutions.size() < 2) return false;
-
-  //std::shuffle(questions.begin(), questions.end(), rng_);
-
-  if (IsClueTrivial(height, colour, question, solutions[0], options)
-      || IsClueTrivial(height, colour, question, solutions[1], options)) {
-    return false;
-  }
-  if (options.max_len_diff >= 0) {
-    if (std::abs(static_cast<int>(question.getText().size() - solutions[0].getText().size())) > options.max_len_diff
-      || std::abs(static_cast<int>(question.getText().size() - solutions[1].getText().size())) > options.max_len_diff) {
-      return false;
-    }
-  }
-
-  SavePanel(name1, question.getText(), solutions[0].getText(), options);
-  SavePanel(name2, question.getText(), solutions[1].getText(), options);
-
-  return true;
-}
-
-void Generator::GeneratePairedPanels(std::string name1, std::string name2, Height height, Colour colour, GenerateOptions options) {
-  while (!GeneratePairedPanelsImpl(name1, name2, height, colour, options));
-}
-
-bool Generator::GeneratePairedPanelsImpl(std::string name1, std::string name2, Height height, Colour colour, GenerateOptions options) {
-  Colour effectiveColour = (height == kMiddle && colour == kWhite) ? kBlack : colour;
-  Height effectiveHeight = (height == kMiddle && colour == kWhite) ? kBottom : height;
-
-  verbly::filter forward = MakeHintFilter({}, effectiveHeight, effectiveColour, kTowardSolution);
-  std::vector<verbly::form> solutions = database_->forms(forward && GetWordFilter(kTowardSolution, options)).all();
-  verbly::form solution = solutions.front();//solutions.at(std::uniform_int_distribution<int>(0, solutions.size())(rng_));
-
-  verbly::filter questionFilter = MakeHintFilter(solution, effectiveHeight, effectiveColour, kTowardQuestion);
-  std::vector<verbly::form> questions = database_->forms(questionFilter && GetWordFilter(kTowardQuestion, options)).all();//, verbly::order(verbly::form::id), 0).all();
-  if (questions.size() < 1) return false;
-  verbly::form question = questions.front();// questions.at(std::uniform_int_distribution<int>(0, questions.size())(rng_));
-
-  if (IsClueTrivial(height, effectiveColour, question, solution, options)) {
-    return false;
-  }
-
-  if (options.palindrome != kPalindromeUnspecified) {
-    std::string reversed = question.getText();
-    std::reverse(reversed.begin(), reversed.end());
-
-    if ((options.palindrome == kForcePalindrome && reversed != question.getText()) ||
-      (options.palindrome == kRejectPalindrome && reversed == question.getText())) {
-      return false;
-    }
-  }
-
-  if (options.max_len_diff >= 0) {
-    if (std::abs(static_cast<int>(question.getText().size() - solution.getText().size())) > options.max_len_diff) {
-      return false;
-    }
-  }
-
-  if (height == kMiddle && colour == kWhite) {
-    SavePanel(name1, question.getText(), question.getText(), options);
-    SavePanel(name2, solution.getText(), solution.getText(), options);
-    if (!options.copy_to.empty() && !options.copy_to2.empty()) {
-      SavePanel(options.copy_to, question.getText(), question.getText(), options);
-      SavePanel(options.copy_to2, solution.getText(), solution.getText(), options);
-    }
-  } else {
-    SavePanel(name1, question.getText(), solution.getText(), options);
-    SavePanel(name2, solution.getText(), question.getText(), options);
-    if (!options.copy_to.empty() && !options.copy_to2.empty()) {
-      SavePanel(options.copy_to, question.getText(), solution.getText(), options);
-      SavePanel(options.copy_to2, solution.getText(), question.getText(), options);
-    }
-  }
-
-  return true;
-}
-
-void Generator::GeneratePanelStack(std::string top_name, Colour top_colour, std::string middle_name, Colour middle_colour, std::string bottom_name, Colour bottom_colour, GenerateOptions options) {
-  while (!GeneratePanelStackImpl(top_name, top_colour, middle_name, middle_colour, bottom_name, bottom_colour, options));
-}
-
-bool Generator::GeneratePanelStackImpl(std::string top_name, Colour top_colour, std::string middle_name, Colour middle_colour, std::string bottom_name, Colour bottom_colour, GenerateOptions options) {
-  verbly::form solution;
-  if (options.reuse_solution) {
-    const std::string& word = reusable_.at(std::uniform_int_distribution<int>(0, reusable_.size()-1)(rng_));
-    if (options.max_answer_len > 0 && word.size() > options.max_answer_len) return false;
-    solution = database_->forms(verbly::form::text == word).first();
-  } else {
-    verbly::filter forward = GetWordFilter(kTowardSolution, options);
-    if (!top_name.empty()) {
-      forward &= MakeHintFilter({}, kTop, top_colour, kTowardSolution);
-    }
-    if (!middle_name.empty()) {
-      forward &= MakeHintFilter({}, kMiddle, middle_colour, kTowardSolution);
-    }
-    if (!bottom_name.empty()) {
-      forward &= MakeHintFilter({}, kBottom, bottom_colour, kTowardSolution);
-    }
-    std::vector<verbly::form> solutions = database_->forms(forward).all();
-    solution = solutions.front();//solutions.at(std::uniform_int_distribution<int>(0, solutions.size())(rng_));
-  }
-
-  if (!options.unique_pool.empty() && pools_[options.unique_pool].count(solution.getText())) {
-    return false;
-  }
-
-  std::string top_hint;
-  std::string middle_hint;
-  std::string bottom_hint;
-
-  if (!top_name.empty()) {
-    verbly::filter questionFilter = MakeHintFilter(solution, kTop, top_colour, kTowardQuestion);
-    std::vector<verbly::form> questions = database_->forms(questionFilter && GetWordFilter(kTowardQuestion, options), {}, 1).all();
-    if (questions.empty()) return false;
-    top_hint = questions.front().getText();
-
-    if (IsClueTrivial(kTop, top_colour, questions.front(), solution, options)) {
-      return false;
-    }
-  }
-
-  if (!middle_name.empty()) {
-    verbly::filter questionFilter = MakeHintFilter(solution, kMiddle, middle_colour, kTowardQuestion);
-    std::vector<verbly::form> questions = database_->forms(questionFilter && GetWordFilter(kTowardQuestion, options), {}, 1).all();
-    if (questions.empty()) return false;
-    middle_hint = questions.front().getText();
-
-    if (IsClueTrivial(kMiddle, middle_colour, questions.front(), solution, options)) {
-      return false;
-    }
-  }
-
-  if (!bottom_name.empty()) {
-    verbly::filter questionFilter = MakeHintFilter(solution, kBottom, bottom_colour, kTowardQuestion);
-    std::vector<verbly::form> questions = database_->forms(questionFilter && GetWordFilter(kTowardQuestion, options), {}, 1).all();
-    if (questions.empty()) return false;
-    bottom_hint = questions.front().getText();
-
-    if (IsClueTrivial(kBottom, bottom_colour, questions.front(), solution, options)) {
-      return false;
-    }
-  }
-
-  if (!top_name.empty()) {
-    SavePanel(top_name, top_hint, solution.getText(), options);
-  }
-  if (!middle_name.empty()) {
-    SavePanel(middle_name, middle_hint, solution.getText(), options);
-  }
-  if (!bottom_name.empty()) {
-    SavePanel(bottom_name, bottom_hint, solution.getText(), options);
-  }
-
-  return true;
-}
-
-void Generator::GenerateOrangeNumberPanel(std::string name) {
-  std::string solution = wanderlust_->GetWord(rng_);
-  std::string question = ApplyWanderlust(solution);
-
-  SavePanel(name, question, solution);
-}
-
-void Generator::GenerateOrangeWordPanel(std::string name) {
-  std::string question = wanderlust_->GetWord(rng_);
-  std::string solution = ApplyWanderlust(question);
-
-  SavePanel(name, question, solution);
-}
-
-void Generator::GenerateOrangeAdditionPanel(std::string name) {
-  auto [question, solution] = wanderlust_->GetPuzzle(rng_);
-
-  SavePanel(name, question, solution);
-}
-
-void Generator::GenerateOneRoadManyTurns(std::string order_name, std::string part1_name, std::string part2_name, std::string part3_name, std::string part4_name) {
-  const auto& [part1_q, part1_a] = panels_.at(part1_name);
-  const auto& [part2_q, part2_a] = panels_.at(part2_name);
-  const auto& [part3_q, part3_a] = panels_.at(part3_name);
-  const auto& [part4_q, part4_a] = panels_.at(part4_name);
-
-  SavePanel(order_name, "order", part1_a + " " + part2_a + " " + part3_a + " " + part4_a);
-}
-
-void Generator::GenerateComboPanel(std::string name, Height left_height, Colour left_colour, Height right_height, Colour right_colour, GenerateOptions options) {
-  while (!GenerateComboPanelImpl(name, left_height, left_colour, right_height, right_colour, options));
-}
-
-bool Generator::GenerateComboPanelImpl(std::string name, Height left_height, Colour left_colour, Height right_height, Colour right_colour, GenerateOptions options) {
-  options.force_two_words = true;
-
-  verbly::form solution = database_->forms(GetWordFilter(kTowardSolution, options)).first();
-  std::string soltext = solution.getText();
-  int spacepos = soltext.find(" ");
-  std::string leftword = soltext.substr(0, spacepos);
-  std::string rightword = soltext.substr(spacepos+1);
-
-  options.force_two_words = false;
-  verbly::filter left_filter = MakeHintFilter(verbly::form::text == leftword, left_height, left_colour, kTowardQuestion);
-  std::vector<verbly::form> left_questions = database_->forms(left_filter && GetWordFilter(kTowardQuestion, options)).all();
-  if (left_questions.size() < 1) return false;
-  verbly::form left_question = left_questions.front();
-
-  verbly::filter right_filter = MakeHintFilter(verbly::form::text == rightword, right_height, right_colour, kTowardQuestion);
-  std::vector<verbly::form> right_questions = database_->forms(right_filter && GetWordFilter(kTowardQuestion, options)).all();
-  if (right_questions.size() < 1) return false;
-  verbly::form right_question = right_questions.front();
-
-  SavePanel(name, left_question.getText() + " " + right_question.getText(), soltext, options);
-
-  return true;
-}
-
-void Generator::GenerateCrossTower(
-  std::string north_tower_name,
-  std::string south_tower_name,
-  std::string east_tower_name,
-  std::string west_tower_name,
-  std::string north_lookout_name,
-  std::string south_lookout_name,
-  std::string east_lookout_name,
-  std::string west_lookout_name,
-  std::string north_other_name1,
-  std::string north_other_name2,
-  std::string north_other_name3,
-  std::string south_other_name1,
-  std::string south_other_name2,
-  std::string south_other_name3,
-  std::string east_other_name1,
-  std::string east_other_name2,
-  std::string east_other_name3,
-  std::string west_other_name1,
-  std::string west_other_name2,
-  std::string west_other_name3)
-{
-  std::vector<std::vector<std::string>> sets = cross_tower_->GetPuzzleSet(rng_);
-
-  SavePanel(north_tower_name, "", sets[0][0]);
-  SavePanel(north_lookout_name, "", sets[0][0]);
-  SavePanel(north_other_name1, sets[0][1], sets[0][1]);
-  SavePanel(north_other_name2, sets[0][2], sets[0][2]);
-  SavePanel(north_other_name3, sets[0][3], sets[0][3]);
-
-  SavePanel(south_tower_name, "", sets[1][0]);
-  SavePanel(south_lookout_name, "", sets[1][0]);
-  SavePanel(south_other_name1, sets[1][1], sets[1][1]);
-  SavePanel(south_other_name2, sets[1][2], sets[1][2]);
-  SavePanel(south_other_name3, sets[1][3], sets[1][3]);
-
-  SavePanel(east_tower_name, "", sets[2][0]);
-  SavePanel(east_lookout_name, "", sets[2][0]);
-  SavePanel(east_other_name1, sets[2][1], sets[2][1]);
-  SavePanel(east_other_name2, sets[2][2], sets[2][2]);
-  SavePanel(east_other_name3, sets[2][3], sets[2][3]);
-
-  SavePanel(west_tower_name, "", sets[3][0]);
-  SavePanel(west_lookout_name, "", sets[3][0]);
-  SavePanel(west_other_name1, sets[3][1], sets[3][1]);
-  SavePanel(west_other_name2, sets[3][2], sets[3][2]);
-  SavePanel(west_other_name3, sets[3][3], sets[3][3]);
-}
-
-void Generator::GeneratePaintingPuzzle(std::string panel_name, std::string painting_name) {
-  std::string node_name;
-  std::string answer;
-  int resource_id = 0;
-
-  for (;;) {
-    std::tie(node_name, answer, resource_id) = paintings_->GetPainting(rng_);
-    if (!used_paintings_.count(node_name)) {
-      break;
-    }
-  }
-
-  used_paintings_.insert(node_name);
-
-  SavePanel(panel_name, "painting", answer, {});
-
-  std::string resource_path = std::string("res://nodes/paintings/") + node_name + ".tscn";
-  if (resource_id == 0) {
-    resources_.emplace_back(resource_path, "PackedScene");
-  }
-
-  replace_nodes_[painting_name] = {resource_path, resource_id};
-}
-
-void Generator::SavePanel(std::string name, std::string question, std::string answer, GenerateOptions options) {
-  if (options.save_for_later) {
-    reusable_.push_back(answer);
-  }
-
-  if (!options.unique_pool.empty()) {
-    pools_[options.unique_pool].insert(answer);
-  }
-
-  if (options.obscure_hint) {
-    int numToObscure = (question.size()/3 > 0) ? std::uniform_int_distribution<int>(1, question.size()/3)(rng_) : 1;
-    std::vector<int> indicies(question.size());
-    std::iota(indicies.begin(), indicies.end(), 0);
-    std::shuffle(indicies.begin(), indicies.end(), rng_);
-
-    for (int i=0; i<numToObscure; i++) {
-      if (question[indicies[i]] != ' ' && question[indicies[i]] != '-') {
-        question[indicies[i]] = '?';
-      }
-    }
-  }
-
-  panels_[name] = std::make_tuple(question, answer);
-
-  std::cout << name << ": " << question << "? " << answer << "!" << std::endl;
-}
-
-verbly::filter Generator::GetWordFilter(FilterDirection dir, GenerateOptions options) const {
-  verbly::filter wordFilter =
-    (verbly::form::proper == false);
-
-  wordFilter &= (
-    !(verbly::word::usageDomains %= (verbly::notion::wnid == 106718862)) // ethnic slurs
-    && !(verbly::notion::wnid == 110630093) // "spastic"
-    && !(verbly::notion::fullHypernyms %= (verbly::notion::wnid == 100844254))); // sexual activity
-
-  if (options.exact_len > 0) {
-    wordFilter &= (verbly::form::length == options.exact_len);
-  } else if (dir == kTowardSolution && options.max_answer_len > 0) {
-    wordFilter &= (verbly::form::length <= options.max_answer_len);
-  } else if (dir == kTowardQuestion && options.max_hint_len > 0) {
-    wordFilter &= (verbly::form::length <= options.max_hint_len);
-  } else {
-    wordFilter &= (verbly::form::length <= 11);
-  }
-
-  if (options.exact_len == 0) {
-    wordFilter &= (verbly::form::length >= 3);
-  }
-
-  if (!options.multiword) {
-    if (options.force_two_words) {
-      wordFilter &= (verbly::form::complexity == 2);
-    } else {
-      wordFilter &= (verbly::form::complexity == 1);
-      wordFilter &= (verbly::form::frequency > 2000000);
-    }
-  } else {
-    wordFilter &= ((verbly::form::complexity > 1) || (verbly::form::frequency > 2000000));
-  }
-
-  return wordFilter;
-}
-
-bool isDigitWrapper(unsigned char ch) {
-  return std::isdigit(ch);
-}
-
-bool Generator::IsClueTrivial(Height height, Colour colour, const verbly::form& clue, const verbly::form& solution, GenerateOptions options) const
-{
-  if (!options.allow_top_expansion && height == kTop) {
-    verbly::filter questionFilter = MakeHintFilter(solution, kMiddle, colour, kTowardQuestion) && clue;
-    if (!database_->forms(questionFilter).all().empty()) {
-      return true;
-    }
-  }
-
-  if (height == kTop && colour == kWhite)
-  {
-    return !database_->forms((verbly::filter)clue && (verbly::word::synonyms %= solution)).all().empty();
-  } else if (height == kBottom && colour == kWhite)
-  {
-    return !database_->forms((verbly::filter)clue && (verbly::form::pronunciations %= solution)).all().empty();
-  } else if (height == kBottom && colour == kBlack)
-  {
-    return !database_->forms((verbly::filter)clue && (verbly::form::merographs %= solution)).all().empty()
-      || !database_->forms((verbly::filter)clue && (verbly::form::holographs %= solution)).all().empty();
-  } else if ((height == kMiddle || height == kTop) && colour == kPurple)
-  {
-    return (clue.getId() == solution.getId())
-      || !database_->forms((verbly::filter)clue && (verbly::form::merographs %= solution)).all().empty()
-      || !database_->forms((verbly::filter)clue && (verbly::form::holographs %= solution)).all().empty();
-  } else if (height == kMiddle && colour == kRed) {
-    if (clue.getComplexity() == 2 && solution.getComplexity() == 1) {
-      auto words = hatkirby::split<std::vector<std::string>>(clue.getText(), " ");
-      for (const auto& word : words) {
-        if (word == solution.getText()) {
-          return true;
-        }
-      }
-    }
-  } else if (height == kMiddle && colour == kYellow) {
-    if (clue.getComplexity() == solution.getComplexity()) {
-      auto clueWords = hatkirby::split<std::vector<std::string>>(clue.getText(), " ");
-      auto solutionWords = hatkirby::split<std::vector<std::string>>(solution.getText(), " ");
-      std::sort(clueWords.begin(), clueWords.end());
-      std::sort(solutionWords.begin(), solutionWords.end());
-      if (clueWords == solutionWords) {
-        return true;
-      }
-    }
-  } else if (height == kTop && colour == kYellow) {
-    std::set<std::string> hint_stressless;
-    for (const verbly::pronunciation& pronunciation : clue.getPronunciations()) {
-      std::string stressed = hatkirby::implode(pronunciation.getPhonemes(), " ");
-      std::string stressless;
-      std::remove_copy_if(stressed.begin(), stressed.end(), std::back_inserter(stressless), &isDigitWrapper);
-      hint_stressless.insert(stressless);
-    }
-    for (const verbly::pronunciation& pronunciation : solution.getPronunciations()) {
-      std::string stressed = hatkirby::implode(pronunciation.getPhonemes(), " ");
-      std::string stressless;
-      std::remove_copy_if(stressed.begin(), stressed.end(), std::back_inserter(stressless), &isDigitWrapper);
-      if (hint_stressless.count(stressless)) {
-        return true;
-      }
-    }
-  }
-  return false;
-}