DoubleDragon3/ModuleInput.cpp at master · GuillemFP/DoubleDragon3 · GitHub

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#include "Globals.h"
#include "Application.h"
#include "ModuleInput.h"
#include "ModuleWindow.h"
#include "SDL/include/SDL.h"
#include "JsonHandler.h"

ModuleInput::ModuleInput(JSONParser* parser) : Module(MODULE_INPUT), mouse({0,0}), mouse_motion({0,0})
{
	assert(parser != nullptr);

	if (parser->LoadObject(INPUT_SECTION))
	{
		iMAX_KEYS = parser->GetInt("KeyboardKeys");
		keyboard = new KeyState[iMAX_KEYS];
		memset(keyboard, KEY_IDLE, iMAX_KEYS * sizeof(KeyState));

		iNUM_BUTTONS = parser->GetInt("MouseButtons");
		mouse_buttons = new KeyState[iNUM_BUTTONS];
		memset(mouse_buttons, KEY_IDLE, iNUM_BUTTONS * sizeof(KeyState));

		iNUMBERPLAYERS = parser->GetInt("NumberPlayers");
		iKEYS_PLAYER = parser->GetInt("NumKeysPlayer");
		keys_player = new SDL_Scancode[iNUMBERPLAYERS * iKEYS_PLAYER];
		parser->LoadArrayInObject("KeysPlayer");
		for (int i = 0; i < iNUMBERPLAYERS; i++)
			for (int j = 0; j < iKEYS_PLAYER; j++)
			{
				keys_player[i*iKEYS_PLAYER + j] = SDL_GetScancodeFromName(parser->GetStringFromArrayInArray(i, j));
			}
	}
	parser->UnloadObject();

}

ModuleInput::~ModuleInput()
{
	RELEASE_ARRAY(keyboard);
	RELEASE_ARRAY(mouse_buttons);
	RELEASE_ARRAY(keys_player);
}

bool ModuleInput::Init()
{
	LOG("Init SDL input event system");
	bool ret = true;
	SDL_Init(0);

	if (SDL_InitSubSystem(SDL_INIT_EVENTS) < 0)
	{
		LOG("SDL_EVENTS could not initialize! SDL_Error: %s\n", SDL_GetError());
		ret = false;
	}

	return ret;
}

bool ModuleInput::Start()
{
	iSCREENSIZE = App->window->GetScreenSize();

	return true;
}

update_status ModuleInput::PreUpdate()
{
	static SDL_Event event_general;

	mouse_motion = { 0, 0 };
	memset(bwindowEvents, false, WE_COUNT * sizeof(bool));

	const Uint8* keys = SDL_GetKeyboardState(NULL);

	for (int i = 0; i < iMAX_KEYS; ++i)
	{
		if (keys[i] == 1)
		{
			if (keyboard[i] == KEY_IDLE)
				keyboard[i] = KEY_DOWN;
			else
				keyboard[i] = KEY_REPEAT;
		}
		else
		{
			if (keyboard[i] == KEY_REPEAT || keyboard[i] == KEY_DOWN)
				keyboard[i] = KEY_UP;
			else
				keyboard[i] = KEY_IDLE;
		}
	}

	for (int i = 0; i < iNUM_BUTTONS; ++i)
	{
		if (mouse_buttons[i] == KEY_DOWN)
			mouse_buttons[i] = KEY_REPEAT;

		if (mouse_buttons[i] == KEY_UP)
			mouse_buttons[i] = KEY_IDLE;
	}

	while (SDL_PollEvent(&event_general) != 0)
	{
		switch (event_general.type)
		{
		case SDL_QUIT:
			bwindowEvents[WE_QUIT] = true;
			break;

		case SDL_WINDOWEVENT:
			switch (event_general.window.event)
			{
			case SDL_WINDOWEVENT_HIDDEN:
			case SDL_WINDOWEVENT_MINIMIZED:
			case SDL_WINDOWEVENT_FOCUS_LOST:
				bwindowEvents[WE_HIDE] = true;
				break;
			case SDL_WINDOWEVENT_SHOWN:
			case SDL_WINDOWEVENT_FOCUS_GAINED:
			case SDL_WINDOWEVENT_MAXIMIZED:
			case SDL_WINDOWEVENT_RESTORED:
				bwindowEvents[WE_SHOW] = true;
				break;
			}

		case SDL_MOUSEBUTTONDOWN:
			mouse_buttons[event_general.button.button - 1] = KEY_DOWN;
			break;

		case SDL_MOUSEBUTTONUP:
			mouse_buttons[event_general.button.button - 1] = KEY_UP;
			break;

		case SDL_MOUSEMOTION:
			mouse_motion.x = event_general.motion.xrel / iSCREENSIZE;
			mouse_motion.y = event_general.motion.yrel / iSCREENSIZE;
			mouse.x = event_general.motion.x / iSCREENSIZE;
			mouse.y = event_general.motion.y / iSCREENSIZE;
			break;
		}
	}

	if (GetWindowEvent(EventWindow::WE_QUIT) == true || GetKey(SDL_SCANCODE_ESCAPE) == KEY_DOWN)
		return UPDATE_STOP;

	return UPDATE_CONTINUE;
}

bool ModuleInput::CleanUp()
{
	LOG("Quitting SDL event subsystem");
	SDL_QuitSubSystem(SDL_INIT_EVENTS);
	return true;
}

bool ModuleInput::GetPlayerOutput(int num_player, PlayerOutput input) const
{
	if (keyboard[keys_player[(num_player - 1)*iKEYS_PLAYER + input]] == KEY_DOWN || keyboard[keys_player[(num_player - 1)*iKEYS_PLAYER + input]] == KEY_REPEAT)
		return true;
	else
		return false;
}

bool ModuleInput::GetPlayerOutput_KeyDown(int num_player, PlayerOutput input) const
{
	if (keyboard[keys_player[(num_player - 1)*iKEYS_PLAYER + input]] == KEY_DOWN)
		return true;
	else
		return false;
}