Engine: Add function for finding key names

src/inferno/application.cpp

@@ -199,7 +199,7 @@ bool Application::onKeyPress(KeyPressEvent& e)
 	// Suppress unused warning
 	(void)e;
 
-	ruc::info("KeyPressEvent {} ({})", Input::getKeyName(e.getKey()), e.getKey());
+	ruc::info("KeyPressEvent {:3}  {}", e.getKey(), keyName(e.getKey()));
 
 	// Stop the main loop on 'Escape' keypress
 	if (e.getKey() == keyCode("GLFW_KEY_ESCAPE")) {

src/inferno/keycodes.cpp

@@ -1,4 +1,5 @@
-#include <string>        // std::string
+#include <algorithm> // std::find_if
+#include <string_view>
 #include <unordered_map> // std::unordered_map
 
 #include "GLFW/glfw3.h"
@@ -8,7 +9,7 @@
 
 namespace Inferno {
 
-static std::unordered_map<std::string, int> keys({
+static std::unordered_map<std::string_view, int> keys({
 	{ MAP_KEY(GLFW_KEY_UNKNOWN) },
 	{ MAP_KEY(GLFW_KEY_SPACE) },
 	{ MAP_KEY(GLFW_KEY_APOSTROPHE) },
@@ -134,10 +135,20 @@ static std::unordered_map<std::string, int> keys({
 
 // -----------------------------------------
 
-int keyCode(const char* name)
+int keyCode(std::string_view name)
 {
-	VERIFY(keys.find(name) != keys.end(), "keyCode could not find '{}'", name);
+	VERIFY(keys.find(name) != keys.end(), "could not find key code: {}", name);
 	return keys.at(name);
 }
 
+std::string_view keyName(int key)
+{
+	auto it = std::find_if(keys.begin(), keys.end(), [key](const auto& keybind) {
+		return keybind.second == key;
+	});
+
+	VERIFY(it != keys.end(), "could not find key name: {}", key);
+	return it->first.substr(9);
+}
+
 } // namespace Inferno

src/inferno/keycodes.h

@@ -1,9 +1,12 @@
 #pragma once
 
+#include <string_view>
+
 #define MAP_KEY(key) #key, key
 
 namespace Inferno {
 
-int keyCode(const char* name);
+int keyCode(std::string_view name);
+std::string_view keyName(int);
 
-}
+} // namespace Inferno