From d3f3187209cb4085f27f95ce8ad2a77af25704fd Mon Sep 17 00:00:00 2001
From: Hop311 <hop3114@gmail.com>
Date: Sun, 23 Apr 2023 19:49:01 +0100
Subject: C++ refactoring + simulation prototype

---
 extension/src/openvic2/map/Building.cpp | 129 ++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 extension/src/openvic2/map/Building.cpp

(limited to 'extension/src/openvic2/map/Building.cpp')

diff --git a/extension/src/openvic2/map/Building.cpp b/extension/src/openvic2/map/Building.cpp
new file mode 100644
index 0000000..f453a0f
--- /dev/null
+++ b/extension/src/openvic2/map/Building.cpp
@@ -0,0 +1,129 @@
+#include "openvic2/map/Building.hpp"
+
+#include <cassert>
+
+#include "openvic2/Logger.hpp"
+
+using namespace OpenVic2;
+
+Building::Building(BuildingType const& new_type) : type{ new_type } {}
+
+bool Building::_can_expand() const {
+	return level < type.get_max_level();
+}
+
+BuildingType const& Building::get_type() const {
+	return type;
+}
+
+Building::level_t Building::get_level() const {
+	return level;
+}
+
+Building::ExpansionState Building::get_expansion_state() const {
+	return expansion_state;
+}
+
+Date const& Building::get_start_date() const {
+	return start;
+}
+
+Date const& Building::get_end_date() const {
+	return end;
+}
+
+float Building::get_expansion_progress() const {
+	return expansion_progress;
+}
+
+return_t Building::expand() {
+	if (expansion_state == ExpansionState::CanExpand) {
+		expansion_state = ExpansionState::Preparing;
+		expansion_progress = 0.0f;
+		return SUCCESS;
+	}
+	return FAILURE;
+}
+
+void Building::update_state(Date const& today) {
+	switch (expansion_state) {
+		case ExpansionState::Preparing:
+			start = today;
+			end = start + type.get_build_time();
+			break;
+		case ExpansionState::Expanding:
+			expansion_progress = static_cast<double>(today - start) / static_cast<double>(end - start);
+			break;
+		default: expansion_state = _can_expand() ? ExpansionState::CanExpand : ExpansionState::CannotExpand;
+	}
+}
+
+void Building::tick(Date const& today) {
+	if (expansion_state == ExpansionState::Preparing) {
+		expansion_state = ExpansionState::Expanding;
+	}
+	if (expansion_state == ExpansionState::Expanding) {
+		if (end <= today) {
+			level++;
+			expansion_state = ExpansionState::CannotExpand;
+		}
+	}
+}
+
+BuildingType::BuildingType(std::string const& new_identifier, Building::level_t new_max_level, Timespan new_build_time) :
+	HasIdentifier{ new_identifier }, max_level{ new_max_level }, build_time{ new_build_time } {
+	assert(new_max_level >= 0);
+	assert(build_time >= 0);
+}
+
+Building::level_t BuildingType::get_max_level() const {
+	return max_level;
+}
+
+Timespan BuildingType::get_build_time() const {
+	return build_time;
+}
+
+return_t BuildingManager::add_building_type(std::string const& identifier, Building::level_t max_level, Timespan build_time) {
+	if (building_types_locked) {
+		Logger::error("The building type list has already been locked!");
+		return FAILURE;
+	}
+	if (identifier.empty()) {
+		Logger::error("Empty building type identifier!");
+		return FAILURE;
+	}
+	if (max_level < 0) {
+		Logger::error("Invalid building type max level: ", max_level);
+		return FAILURE;
+	}
+	if (build_time < 0) {
+		Logger::error("Invalid building type build time: ", build_time);
+		return FAILURE;
+	}
+	BuildingType new_building_type{ identifier, max_level, build_time };
+	BuildingType const* old_building_type = get_building_type_by_identifier(identifier);
+	if (old_building_type != nullptr) {
+		Logger::error("Duplicate building type identifiers: ", old_building_type->get_identifier(), " and ", identifier);
+		return FAILURE;
+	}
+	building_types.push_back(new_building_type);
+	return SUCCESS;
+}
+
+void BuildingManager::lock_building_types() {
+	building_types_locked = true;
+	Logger::info("Locked building types after registering ", building_types.size());
+}
+
+BuildingType const* BuildingManager::get_building_type_by_identifier(std::string const& identifier) const {
+	if (!identifier.empty())
+		for (BuildingType const& building_type : building_types)
+			if (building_type.get_identifier() == identifier) return &building_type;
+	return nullptr;
+}
+
+void BuildingManager::generate_province_buildings(std::vector<Building>& buildings) const {
+	for (BuildingType const& type : building_types)
+		buildings.push_back(Building{ type });
+}
-- 
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