/*
   client/input.h
   This file is part of the Osirion project and is distributed under
   the terms and conditions of the GNU General Public License version 2
*/

#include "core/core.h"
#include "client/client.h"
#include "client/input.h"
#include "client/console.h"
#include "client/camera.h"
#include "client/keyboard.h"

#include "SDL/SDL.h"

namespace client
{

namespace input
{

// local offset to make turns
float local_turn;
// local thrust setting
float local_thrust;

core::Player *localplayer() {
	return core::game()->localplayer();
}

core::EntityControlable *localcontrol() {
	if (core::game()->localplayer())
		return core::game()->localplayer()->control;
	else
		return 0;
}

void init()
{
	con_print << "Initializing input..." << std::endl;
	client::setkeyboardmode(console::visible());
}

void shutdown()
{
	con_print << "Shutting down input..." << std::endl;
}

// handle key release for the game world
void keyreleased(const SDL_keysym &keysym)
{
	switch (keysym.sym) {
		case SDLK_SPACE:
			camera::next_mode();
			break;
		default:
			break;
	}
}

// handle key press events for the game world
void keypressed(const SDL_keysym &keysym)
{
	switch (keysym.sym) {
		case SDLK_LEFT:
			camera::key_left();
			break;
		case SDLK_RIGHT:
			camera::key_right();
			break;
		case SDLK_UP:
			camera::key_up();
			break;
		case SDLK_DOWN:
			camera::key_down();
			break;
		case SDLK_KP_PLUS:
			// TODO set core entity params
			local_thrust += 0.08f;
			if (local_thrust > 1.0f)
				local_thrust = 1.0f;
			break;
		case SDLK_KP_MINUS:
			// TODO set core entity params
			local_thrust -= 0.1f;
			if (local_thrust < 0.0f)
				local_thrust = 0.0f;
			break;
		case SDLK_KP4:
			// TODO set core entity params
			local_turn += 5;
			if (math::degrees180f(local_turn - localcontrol()->direction()) > 90)
				local_turn = localcontrol()->direction() + 90;
			if (local_turn > 360)
				local_turn -= 360;
			
			break;
		case SDLK_KP6:
			// TODO set core entity params
			local_turn -= 5;
			if (math::degrees180f(local_turn - localcontrol()->direction()) < -90)
				local_turn = localcontrol()->direction() - 90;
			if (local_turn < 0)
				local_turn += 360;
			break;
		default:
			break;
	}
	
}

void frame(float seconds)
{
	SDL_Event event;
	
	while (SDL_PollEvent(&event)) {
	
		switch (event.type) {
			case SDL_KEYUP:
				if (!console::visible() && core::application()->connected() && localcontrol())
					// send key events to the game world
					keyreleased(event.key.keysym);
				break;
			case SDL_KEYDOWN:
				if (event.key.keysym.sym == '`' || event.key.keysym.sym == '~') {
					console::toggle();
				} else if (console::visible()) {
					// send key events to the console
					console::keypressed(event.key.keysym);
				} else if (core::application()->connected() && localcontrol()) {
					// send key events to the game world
					keypressed(event.key.keysym);
				}
				break;
			case SDL_QUIT:
				core::application()->shutdown();
				break;
		}
		
	}
	
	if (!console::visible() && core::application()->connected() && localcontrol()) {
		localcontrol()->set_thrust(local_thrust);
		localcontrol()->set_direction(local_turn);
	}
}

} // namespace input

} // namespace client