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

using namespace OpenVic;

GameManager::GameManager(state_updated_func_t state_updated_callback)
   : clock { [this]() { tick(); }, [this]() { update_state(); } },
     state_updated { state_updated_callback } {}

Map& GameManager::get_map() {
   return map;
}

Map const& GameManager::get_map() const {
   return map;
}

BuildingManager& GameManager::get_building_manager() {
   return building_manager;
}

BuildingManager const& GameManager::get_building_manager() const {
   return building_manager;
}

GoodManager& GameManager::get_good_manager() {
   return good_manager;
}

GoodManager const& GameManager::get_good_manager() const {
   return good_manager;
}

GovernmentTypeManager& GameManager::get_government_type_manager() {
   return government_type_manager;
}

GovernmentTypeManager const& GameManager::get_government_type_manager() const {
   return government_type_manager;
}

PopManager& GameManager::get_pop_manager() {
   return pop_manager;
}

PopManager const& GameManager::get_pop_manager() const {
   return pop_manager;
}

IdeologyManager& GameManager::get_ideology_manager() {
   return ideology_manager;
}

IdeologyManager const& GameManager::get_ideology_manager() const {
   return ideology_manager;
}

IssueManager& GameManager::get_issue_manager() {
   return issue_manager;
}

IssueManager const& GameManager::get_issue_manager() const {
   return issue_manager;
}

ProductionTypeManager& GameManager::get_production_type_manager() {
   return production_type_manager;
}

ProductionTypeManager const& GameManager::get_production_type_manager() const {
   return production_type_manager;
}

UnitManager& GameManager::get_unit_manager() {
   return unit_manager;
}

UnitManager const& GameManager::get_unit_manager() const {
   return unit_manager;
}

ModifierManager& GameManager::get_modifier_manager() {
   return modifier_manager;
}

ModifierManager const& GameManager::get_modifier_manager() const {
   return modifier_manager;
}

GameAdvancementHook& GameManager::get_clock() {
   return clock;
}

GameAdvancementHook const& GameManager::get_clock() const {
   return clock;
}

void GameManager::set_needs_update() {
   needs_update = true;
}

void GameManager::update_state() {
   if (!needs_update) return;
   Logger::info("Update: ", today);
   map.update_state(today);
   if (state_updated) state_updated();
   needs_update = false;
}

/* REQUIREMENTS:
 * SS-98, SS-101
 */
void GameManager::tick() {
   today++;
   Logger::info("Tick: ", today);
   map.tick(today);
   set_needs_update();
}

bool GameManager::setup() {
   session_start = time(nullptr);
   clock.reset();
   today = { 1836 };
   good_manager.reset_to_defaults();
   bool ret = map.setup(good_manager, building_manager, pop_manager);
   set_needs_update();
   return ret;
}

Date const& GameManager::get_today() const {
   return today;
}

bool GameManager::expand_building(Province::index_t province_index, std::string_view building_type_identifier) {
   set_needs_update();
   Province* province = map.get_province_by_index(province_index);
   if (province == nullptr) {
      Logger::error("Invalid province index ", province_index, " while trying to expand building ", building_type_identifier);
      return false;
   }
   return province->expand_building(building_type_identifier);
}

static constexpr colour_t LOW_ALPHA_VALUE = float_to_alpha_value(0.4f);
static constexpr colour_t HIGH_ALPHA_VALUE = float_to_alpha_value(0.7f);

static colour_t default_colour(Province const& province) {
   /* Nice looking colours to blend with the terrain textures */
   static constexpr colour_t LAND_COLOUR = 0x0D7017;
   static constexpr colour_t WATER_COLOUR = 0x4287F5;
   return LOW_ALPHA_VALUE | (province.get_water() ? WATER_COLOUR : LAND_COLOUR);
}

bool GameManager::load_hardcoded_defines() {
   bool ret = true;

   using mapmode_t = std::pair<std::string, Mapmode::colour_func_t>;
   const std::vector<mapmode_t> mapmodes {
      { "mapmode_terrain",
         [](Map const&, Province const& province) -> colour_t {
            return default_colour(province);
         } },
      { "mapmode_province",
         [](Map const&, Province const& province) -> colour_t {
            return HIGH_ALPHA_VALUE | province.get_colour();
         } },
      { "mapmode_region",
         [](Map const&, Province const& province) -> colour_t {
            Region const* region = province.get_region();
            return region != nullptr ? HIGH_ALPHA_VALUE | region->get_colour() : default_colour(province);
         } },
      { "mapmode_index",
         [](Map const& map, Province const& province) -> colour_t {
            const colour_t f = fraction_to_colour_byte(province.get_index(), map.get_province_count() + 1);
            return HIGH_ALPHA_VALUE | (f << 16) | (f << 8) | f;
         } },
      { "mapmode_terrain_type",
         [](Map const& map, Province const& province) -> colour_t {
            TerrainType const* terrarin_type = province.get_terrain_type();
            return terrarin_type != nullptr ? HIGH_ALPHA_VALUE | terrarin_type->get_colour() : default_colour(province);
         } },
      { "mapmode_rgo",
         [](Map const& map, Province const& province) -> colour_t {
            Good const* rgo = province.get_rgo();
            return rgo != nullptr ? HIGH_ALPHA_VALUE | rgo->get_colour() : default_colour(province);
         } },
      { "mapmode_infrastructure",
         [](Map const& map, Province const& province) -> colour_t {
            BuildingInstance const* railroad = province.get_building_by_identifier("building_railroad");
            if (railroad != nullptr) {
               colour_t val = fraction_to_colour_byte(railroad->get_current_level(), railroad->get_building().get_max_level() + 1, 0.5f, 1.0f);
               switch (railroad->get_expansion_state()) {
                  case ExpansionState::CannotExpand: val <<= 16; break;
                  case ExpansionState::CanExpand: break;
                  default: val <<= 8; break;
               }
               return HIGH_ALPHA_VALUE | val;
            }
            return default_colour(province);
         } },
      { "mapmode_population",
         [](Map const& map, Province const& province) -> colour_t {
            return HIGH_ALPHA_VALUE | (fraction_to_colour_byte(province.get_total_population(), map.get_highest_province_population() + 1, 0.1f, 1.0f) << 8);
         } },
      { "mapmode_culture",
         [](Map const& map, Province const& province) -> colour_t {
            HasIdentifierAndColour const* largest = get_largest_item(province.get_culture_distribution()).first;
            return largest != nullptr ? HIGH_ALPHA_VALUE | largest->get_colour() : default_colour(province);
         } },
      { "mapmode_religion",
         [](Map const& map, Province const& province) -> colour_t {
            HasIdentifierAndColour const* largest = get_largest_item(province.get_religion_distribution()).first;
            return largest != nullptr ? HIGH_ALPHA_VALUE | largest->get_colour() : default_colour(province);
         } }
   };
   for (mapmode_t const& mapmode : mapmodes)
      ret &= map.add_mapmode(mapmode.first, mapmode.second);
   map.lock_mapmodes();

   return ret;
}