Cambiado el nombre de la carpeta utils a common

source/common/input.cpp

@@ -0,0 +1,269 @@
+#include "input.h"
+#include <iostream>
+
+// Constructor
+Input::Input(std::string file)
+{
+	// Fichero gamecontrollerdb.txt
+	dbPath = file;
+
+	// Inicializa las variables
+	keyBindings_t kb;
+	kb.scancode = 0;
+	kb.active = false;
+	keyBindings.resize(17, kb);
+
+	GameControllerBindings_t gcb;
+	gcb.button = SDL_CONTROLLER_BUTTON_INVALID;
+	gcb.active = false;
+	gameControllerBindings.resize(17, gcb);
+
+	// Comprueba si hay un mando conectado
+	discoverGameController();
+}
+
+// Destructor
+Input::~Input()
+{
+}
+
+// Asigna uno de los posibles inputs a una tecla del teclado
+void Input::bindKey(Uint8 input, SDL_Scancode code)
+{
+	keyBindings.at(input).scancode = code;
+}
+
+// Asigna uno de los posibles inputs a un botón del mando
+void Input::bindGameControllerButton(Uint8 input, SDL_GameControllerButton button)
+{
+	gameControllerBindings.at(input).button = button;
+}
+
+// Comprueba si un input esta activo
+bool Input::checkInput(Uint8 input, bool repeat, int device, int index)
+{
+	bool successKeyboard = false;
+	bool successGameController = false;
+
+	if (device == INPUT_USE_ANY)
+		index = 0;
+
+	if (device == INPUT_USE_KEYBOARD || device == INPUT_USE_ANY)
+	{
+		const Uint8 *keyStates = SDL_GetKeyboardState(nullptr);
+
+		if (repeat)
+		{
+			if (keyStates[keyBindings.at(input).scancode] != 0)
+			{
+				successKeyboard = true;
+			}
+			else
+			{
+				successKeyboard = false;
+			}
+		}
+		else
+		{
+			if (!keyBindings.at(input).active)
+			{
+				if (keyStates[keyBindings.at(input).scancode] != 0)
+				{
+					keyBindings.at(input).active = true;
+					successKeyboard = true;
+				}
+				else
+				{
+					successKeyboard = false;
+				}
+			}
+			else
+			{
+				if (keyStates[keyBindings.at(input).scancode] == 0)
+				{
+					keyBindings.at(input).active = false;
+					successKeyboard = false;
+				}
+				else
+				{
+					successKeyboard = false;
+				}
+			}
+		}
+	}
+
+	if (gameControllerFound())
+		if ((device == INPUT_USE_GAMECONTROLLER) || (device == INPUT_USE_ANY))
+		{
+			if (repeat)
+			{
+				if (SDL_GameControllerGetButton(connectedControllers.at(index), gameControllerBindings.at(input).button) != 0)
+				{
+					successGameController = true;
+				}
+				else
+				{
+					successGameController = false;
+				}
+			}
+			else
+			{
+				if (!gameControllerBindings.at(input).active)
+				{
+					if (SDL_GameControllerGetButton(connectedControllers.at(index), gameControllerBindings.at(input).button) != 0)
+					{
+						gameControllerBindings.at(input).active = true;
+						successGameController = true;
+					}
+					else
+					{
+						successGameController = false;
+					}
+				}
+				else
+				{
+					if (SDL_GameControllerGetButton(connectedControllers.at(index), gameControllerBindings.at(input).button) == 0)
+					{
+						gameControllerBindings.at(input).active = false;
+						successGameController = false;
+					}
+					else
+					{
+						successGameController = false;
+					}
+				}
+			}
+		}
+
+	return (successKeyboard || successGameController);
+}
+
+// Comprueba si hay almenos un input activo
+bool Input::checkAnyInput(int device, int index)
+{
+	if (device == INPUT_USE_ANY)
+	{
+		index = 0;
+	}
+
+	if (device == INPUT_USE_KEYBOARD || device == INPUT_USE_ANY)
+	{
+		const Uint8 *mKeystates = SDL_GetKeyboardState(nullptr);
+
+		for (int i = 0; i < (int)keyBindings.size(); ++i)
+		{
+			if (mKeystates[keyBindings.at(i).scancode] != 0)
+			{
+				return true;
+			}
+		}
+	}
+
+	if (gameControllerFound())
+	{
+		if (device == INPUT_USE_GAMECONTROLLER || device == INPUT_USE_ANY)
+		{
+			for (int i = 0; i < (int)gameControllerBindings.size(); ++i)
+			{
+				if (SDL_GameControllerGetButton(connectedControllers.at(index), gameControllerBindings.at(i).button) != 0)
+				{
+					return true;
+				}
+			}
+		}
+	}
+
+	return false;
+}
+
+// Comprueba si hay un mando conectado
+bool Input::discoverGameController()
+{
+	bool found = false;
+
+	if (SDL_WasInit(SDL_INIT_GAMECONTROLLER) != 1)
+	{
+		SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER);
+	}
+
+	if (SDL_GameControllerAddMappingsFromFile(dbPath.c_str()) < 0)
+	{
+		printf("Error, could not load %s file: %s\n", dbPath.c_str(), SDL_GetError());
+	}
+
+	const int nJoysticks = SDL_NumJoysticks();
+	numGamepads = 0;
+
+	// Cuenta el numero de mandos
+	for (int i = 0; i < nJoysticks; ++i)
+	{
+		if (SDL_IsGameController(i))
+		{
+			numGamepads++;
+		}
+	}
+
+	printf("\nChecking for game controllers...\n");
+	printf("%i joysticks found, %i are gamepads\n", nJoysticks, numGamepads);
+
+	if (numGamepads > 0)
+	{
+		found = true;
+
+		for (int i = 0; i < numGamepads; i++)
+		{
+			// Abre el mando y lo añade a la lista
+			SDL_GameController *pad = SDL_GameControllerOpen(i);
+			if (SDL_GameControllerGetAttached(pad) == 1)
+			{
+				connectedControllers.push_back(pad);
+				const std::string separator(" #");
+				std::string name = SDL_GameControllerNameForIndex(i);
+				name.resize(25);
+				name = name + separator + std::to_string(i);
+				std::cout << name << std::endl;
+				controllerNames.push_back(name);
+			}
+			else
+			{
+				std::cout << "SDL_GetError() = " << SDL_GetError() << std::endl;
+			}
+		}
+
+		SDL_GameControllerEventState(SDL_ENABLE);
+	}
+
+	return found;
+}
+
+// Comprueba si hay algun mando conectado
+bool Input::gameControllerFound()
+{
+	if (numGamepads > 0)
+	{
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+// Obten el nombre de un mando de juego
+std::string Input::getControllerName(int index)
+{
+	if (numGamepads > 0)
+	{
+		return controllerNames.at(index);
+	}
+	else
+	{
+		return "";
+	}
+}
+
+// Obten el numero de mandos conectados
+int Input::getNumControllers()
+{
+	return numGamepads;
+}