From e6644d6b235005de9ba1b9884472fa5f5d8d6074 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sun, 20 Mar 2022 18:49:49 +0100
Subject: refactor: update event system terminology & structure

---
 src/engine/engine.cpp     |  2 +-
 src/engine/user/input.cpp | 24 +++++++++++++-----------
 src/engine/user/input.hpp | 17 +++++++++--------
 3 files changed, 23 insertions(+), 20 deletions(-)

(limited to 'src/engine')

diff --git a/src/engine/engine.cpp b/src/engine/engine.cpp
index ed81ed3..e463f28 100644
--- a/src/engine/engine.cpp
+++ b/src/engine/engine.cpp
@@ -49,6 +49,6 @@ void CLIGameEngine::_configure_input(
 		auto key = config_pair.first;
 		auto command = config_pair.second;
 
-		_input_handler->attach(key, command);
+		_input_handler->subscribe(key, command);
 	}
 }
diff --git a/src/engine/user/input.cpp b/src/engine/user/input.cpp
index f1685fd..5e6f517 100644
--- a/src/engine/user/input.cpp
+++ b/src/engine/user/input.cpp
@@ -8,25 +8,26 @@ void InputHandler::listen() const noexcept
 
 	while (read(STDIN_FILENO, &character, 1) == 1)
 	{
-		notify(character);
+		notify_subscribers(character, nullptr);
 	}
 }
 
-void InputHandler::attach(const char &key,
-						  const std::shared_ptr<ICommand> &command) noexcept
+void InputHandler::subscribe(
+	const Event &event, const std::shared_ptr<ISubscriber<Context>> &subscriber) noexcept
 {
-	auto key_index = _key_as_index(key);
+	auto event_index = _event_as_index(event);
 
-	_key_commands.at(key_index).push_back(command);
+	_subscribers.at(event_index).push_back(subscriber);
 }
 
-void InputHandler::notify(const char &key) const noexcept
+void InputHandler::notify_subscribers(const Event &event,
+									  const Context &context) const noexcept
 {
-	auto key_index = _key_as_index(key);
+	auto event_index = _event_as_index(event);
 
-	for (const auto &command : _key_commands.at(key_index))
+	for (const auto &subscriber : _subscribers.at(event_index))
 	{
-		command->execute();
+		subscriber->update(context);
 	}
 }
 
@@ -58,7 +59,8 @@ void InputHandler::leave_raw_mode() noexcept
 	_original_termios = nullptr;
 }
 
-InputHandler::_KeyCommandsSizeType InputHandler::_key_as_index(const char &key) noexcept
+InputHandler::_SubscribersSizeType
+InputHandler::_event_as_index(const Event &event) noexcept
 {
-	return static_cast<_KeyCommandsSizeType>(static_cast<uint8_t>(key));
+	return static_cast<_SubscribersSizeType>(static_cast<uint8_t>(event));
 }
diff --git a/src/engine/user/input.hpp b/src/engine/user/input.hpp
index d2aa447..7a3c88e 100644
--- a/src/engine/user/input.hpp
+++ b/src/engine/user/input.hpp
@@ -1,9 +1,8 @@
 #pragma once
 
 #include "DI/auto_wirable.hpp"
-#include "interfaces/command.hpp"
 #include "interfaces/input.hpp"
-#include "interfaces/observable.hpp"
+#include "interfaces/subscriber.hpp"
 
 #include <limits>
 #include <memory>
@@ -18,21 +17,23 @@ public:
 
 	void listen() const noexcept override;
 
-	void attach(const char &key,
-				const std::shared_ptr<ICommand> &command) noexcept override;
+	void
+	subscribe(const Event &event,
+			  const std::shared_ptr<ISubscriber<Context>> &subscriber) noexcept override;
 
-	void notify(const char &key) const noexcept override;
+	void notify_subscribers(const Event &event,
+							const Context &context) const noexcept override;
 
 	void enter_raw_mode() noexcept override;
 
 	void leave_raw_mode() noexcept override;
 
 private:
-	std::array<std::vector<std::shared_ptr<ICommand>>, CHAR_MAX> _key_commands;
+	std::array<std::vector<std::shared_ptr<ISubscriber<Context>>>, CHAR_MAX> _subscribers;
 
 	std::shared_ptr<termios> _original_termios = nullptr;
 
-	using _KeyCommandsSizeType = decltype(_key_commands)::size_type;
+	using _SubscribersSizeType = decltype(_subscribers)::size_type;
 
-	static _KeyCommandsSizeType _key_as_index(const char &key) noexcept;
+	static _SubscribersSizeType _event_as_index(const Event &event) noexcept;
 };
-- 
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