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path: root/src/openvic-simulation/map/Province.cpp
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#include "Province.hpp"

#include "openvic-simulation/history/ProvinceHistory.hpp"

using namespace OpenVic;
using namespace OpenVic::NodeTools;

Province::Province(
   std::string_view new_identifier, colour_t new_colour, index_t new_index
) : HasIdentifierAndColour { new_identifier, new_colour, true }, index { new_index }, region { nullptr },
   climate { nullptr }, continent { nullptr }, on_map { false }, has_region { false }, water { false }, coastal { false },
   port { false }, default_terrain_type { nullptr }, positions {}, terrain_type { nullptr }, life_rating { 0 },
   colony_status { colony_status_t::STATE }, state { nullptr }, owner { nullptr }, controller { nullptr }, slave { false },
   crime { nullptr }, rgo { nullptr }, buildings { "buildings", false }, total_population { 0 } {
   assert(index != NULL_INDEX);
}

bool Province::operator==(Province const& other) const {
   return this == &other;
}

std::string Province::to_string() const {
   std::stringstream stream;
   stream << "(#" << std::to_string(index) << ", " << get_identifier() << ", 0x" << get_colour() << ")";
   return stream.str();
}

bool Province::load_positions(BuildingTypeManager const& building_type_manager, ast::NodeCPtr root) {
   const bool ret = expect_dictionary_keys(
      "text_position", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.text)),
      "text_rotation", ZERO_OR_ONE, expect_fixed_point(assign_variable_callback(positions.text_rotation)),
      "text_scale", ZERO_OR_ONE, expect_fixed_point(assign_variable_callback(positions.text_scale)),
      "unit", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.unit)),
      "town", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.city)),
      "city", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.city)),
      "factory", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.factory)),
      "building_construction", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.building_construction)),
      "military_construction", ZERO_OR_ONE, expect_fvec2(assign_variable_callback(positions.military_construction)),
      "building_position", ZERO_OR_ONE, building_type_manager.expect_building_type_dictionary_reserve_length(
         positions.building_position,
         [this](BuildingType const& type, ast::NodeCPtr value) -> bool {
            return expect_fvec2(map_callback(positions.building_position, &type))(value);
         }
      ),
      "building_rotation", ZERO_OR_ONE, building_type_manager.expect_building_type_decimal_map(
         move_variable_callback(positions.building_rotation)
      ),
      /* the below are esoteric clausewitz leftovers that either have no impact or whose functionality is lost to time */
      "spawn_railway_track", ZERO_OR_ONE, success_callback,
      "railroad_visibility", ZERO_OR_ONE, success_callback,
      "building_nudge", ZERO_OR_ONE, success_callback
   )(root);

   port = coastal && positions.building_position.contains(building_type_manager.get_port_building_type());

   return ret;
}

bool Province::expand_building(size_t building_index) {
   BuildingInstance* building = buildings.get_item_by_index(building_index);
   if (building == nullptr) {
      Logger::error("Trying to expand non-existent building index ", building_index, " in province ", get_identifier());
      return false;
   }
   return building->expand();
}

bool Province::add_pop(Pop&& pop) {
   if (!is_water()) {
      pops.push_back(std::move(pop));
      return true;
   } else {
      Logger::error("Trying to add pop to water province ", get_identifier());
      return false;
   }
}

bool Province::add_pop_vec(std::vector<Pop> const& pop_vec) {
   if (!is_water()) {
      pops.reserve(pops.size() + pop_vec.size());
      for (Pop const& pop : pop_vec) {
         pops.push_back(pop);
      }
      return true;
   } else {
      Logger::error("Trying to add pop vector to water province ", get_identifier());
      return false;
   }
}

size_t Province::get_pop_count() const {
   return pops.size();
}

/* REQUIREMENTS:
 * MAP-65, MAP-68, MAP-70, MAP-234
 */
void Province::update_pops() {
   total_population = 0;
   pop_type_distribution.clear();
   ideology_distribution.clear();
   culture_distribution.clear();
   religion_distribution.clear();
   for (Pop const& pop : pops) {
      total_population += pop.get_size();
      pop_type_distribution[&pop.get_type()] += pop.get_size();
      //ideology_distribution[&pop.get_???()] += pop.get_size();
      culture_distribution[&pop.get_culture()] += pop.get_size();
      religion_distribution[&pop.get_religion()] += pop.get_size();
   }
}

void Province::update_gamestate(Date today) {
   for (BuildingInstance& building : buildings.get_items()) {
      building.update_gamestate(today);
   }
   update_pops();
}

void Province::tick(Date today) {
   for (BuildingInstance& building : buildings.get_items()) {
      building.tick(today);
   }
}

Province::adjacency_t::adjacency_t(
   Province const* new_to, distance_t new_distance, type_t new_type, Province const* new_through, data_t new_data
) : to { new_to }, distance { new_distance }, type { new_type }, through { new_through }, data { new_data } {}

std::string_view Province::adjacency_t::get_type_name(type_t type) {
   switch (type) {
   case type_t::LAND: return "Land";
   case type_t::WATER: return "Water";
   case type_t::COASTAL: return "Coastal";
   case type_t::IMPASSABLE: return "Impassable";
   case type_t::STRAIT: return "Strait";
   case type_t::CANAL: return "Canal";
   default: return "Invalid Adjacency Type";
   }
}

Province::adjacency_t const* Province::get_adjacency_to(Province const* province) const {
   const std::vector<adjacency_t>::const_iterator it = std::find_if(adjacencies.begin(), adjacencies.end(),
      [province](adjacency_t const& adj) -> bool { return adj.get_to() == province; }
   );
   if (it != adjacencies.end()) {
      return &*it;
   } else {
      return nullptr;
   }
}

bool Province::is_adjacent_to(Province const* province) const {
   return province != nullptr && std::any_of(adjacencies.begin(), adjacencies.end(),
      [province](adjacency_t const& adj) -> bool { return adj.get_to() == province; }
   );
}

std::vector<Province::adjacency_t const*> Province::get_adjacencies_going_through(Province const* province) const {
   std::vector<adjacency_t const*> ret;
   for (adjacency_t const& adj : adjacencies) {
      if (adj.get_through() == province) {
         ret.push_back(&adj);
      }
   }
   return ret;
}

bool Province::has_adjacency_going_through(Province const* province) const {
   return province != nullptr && std::any_of(adjacencies.begin(), adjacencies.end(),
      [province](adjacency_t const& adj) -> bool { return adj.get_through() == province; }
   );
}

fvec2_t Province::get_unit_position() const {
   return positions.unit.value_or(positions.centre);
}

bool Province::reset(BuildingTypeManager const& building_type_manager) {
   terrain_type = default_terrain_type;
   life_rating = 0;
   colony_status = colony_status_t::STATE;
   state = nullptr;
   owner = nullptr;
   controller = nullptr;
   cores.clear();
   slave = false;
   crime = nullptr;
   rgo = nullptr;

   buildings.reset();
   bool ret = true;
   if (!is_water()) {
      if (building_type_manager.building_types_are_locked()) {
         for (BuildingType const* building_type : building_type_manager.get_province_building_types()) {
            ret &= buildings.add_item({ *building_type });
         }
      } else {
         Logger::error("Cannot generate buildings until building types are locked!");
         ret = false;
      }
   }
   lock_buildings();

   pops.clear();
   update_pops();

   return ret;
}

bool Province::apply_history_to_province(ProvinceHistoryEntry const* entry) {
   if (entry == nullptr) {
      Logger::error("Trying to apply null province history to ", get_identifier());
      return false;
   }
   if (entry->get_life_rating()) life_rating = *entry->get_life_rating();
   if (entry->get_colonial()) colony_status = *entry->get_colonial();
   if (entry->get_rgo()) rgo = *entry->get_rgo();
   if (entry->get_terrain_type()) terrain_type = *entry->get_terrain_type();
   if (entry->get_owner()) owner = *entry->get_owner();
   if (entry->get_controller()) controller = *entry->get_controller();
   if (entry->get_slave()) slave = *entry->get_slave();
   for (Country const* core : entry->get_remove_cores()) {
      const typename decltype(cores)::iterator existing_core = std::find(cores.begin(), cores.end(), core);
      if (existing_core != cores.end()) {
         cores.erase(existing_core);
      } else {
         Logger::warning(
            "Trying to remove non-existent core ", core->get_identifier(), " from province ", get_identifier()
         );
      }
   }
   for (Country const* core : entry->get_add_cores()) {
      const typename decltype(cores)::iterator existing_core = std::find(cores.begin(), cores.end(), core);
      if (existing_core == cores.end()) {
         cores.push_back(core);
      } else {
         Logger::warning(
            "Trying to add already-existing core ", core->get_identifier(), " to province ", get_identifier()
         );
      }
   }
   bool ret = true;
   for (auto const& [building, level] : entry->get_province_buildings()) {
      BuildingInstance* existing_entry = buildings.get_item_by_identifier(building->get_identifier());
      if (existing_entry != nullptr) {
         existing_entry->set_level(level);
      } else {
         Logger::error(
            "Trying to set level of non-existent province building ", building->get_identifier(), " to ", level,
            " in province ", get_identifier()
         );
         ret = false;
      }
   }
   // TODO: load state buildings
   // TODO: party loyalties for each POP when implemented on POP side
   return ret;
}