First implementation of input control with KeyStateManager

To try to do: Manage edges

src/KeyStateManager.cpp

@@ -0,0 +1,79 @@
+//
+// Created by trotfunky on 07/10/2019.
+//
+
+#include "KeyStateManager.h"
+#include <iostream>
+
+std::map<unsigned char,bool> KeyStateManager::ascii_keys_status = {};
+std::map<int,bool> KeyStateManager::special_keys_status = {};
+
+void KeyStateManager::register_glut_callbacks()
+{
+    glutKeyboardFunc(KeyStateManager::key_press);
+    glutKeyboardUpFunc(KeyStateManager::key_up);
+    glutSpecialFunc(KeyStateManager::special_key_press);
+    glutSpecialUpFunc(KeyStateManager::special_key_up);
+}
+
+bool KeyStateManager::is_key_pressed(unsigned char key)
+{
+    if (ascii_keys_status.find(key) == ascii_keys_status.end())
+    {
+        return false;
+    }
+    return ascii_keys_status.at(key);
+}
+
+bool KeyStateManager::is_special_key_pressed(int key)
+{
+    if (special_keys_status.find(key) == special_keys_status.end())
+    {
+        return false;
+    }
+    return special_keys_status.at(key);
+}
+
+void KeyStateManager::key_press(unsigned char event_key, int mouse_x, int mouse_y)
+{
+    update_key(event_key,true);
+}
+
+void KeyStateManager::key_up(unsigned char event_key, int mouse_x, int mouse_y)
+{
+    update_key(event_key,false);
+}
+
+void KeyStateManager::special_key_press(int event_key, int mouse_x, int mouse_y)
+{
+    update_special_key(event_key,true);
+}
+
+void KeyStateManager::special_key_up(int event_key, int mouse_x, int mouse_y)
+{
+    update_special_key(event_key,false);
+}
+
+void KeyStateManager::update_key(unsigned char event_key, bool new_status)
+{
+    if (ascii_keys_status.find(event_key) != ascii_keys_status.end())
+    {
+        ascii_keys_status.at(event_key) = new_status;
+    }
+    else
+    {
+        ascii_keys_status.insert({event_key,new_status});
+    }
+}
+
+void KeyStateManager::update_special_key(int event_key, bool new_status)
+{
+    if (special_keys_status.find(event_key) != special_keys_status.end())
+    {
+        special_keys_status.at(event_key) = new_status;
+    }
+    else
+    {
+        special_keys_status.insert({event_key,new_status});
+    }
+}