#include <SFML/System.hpp>
#include <SFML/Graphics.hpp>
#include <sstream>

using namespace sf;
int main()
{
const int width = 640;
const int height= 480;

// Create window
sf::Vector2f screenDimensions(800, 600);

sf::RenderWindow window;
window.create (sf::VideoMode(screenDimensions.x, screenDimensions.y), "SFML game");
// Limit frame-rate
window.setFramerateLimit(60);

// Keep track of the frametime
sf::Clock frametime;

Font font;
if (!font.loadFromFile("HelveticaNeue-UltraLight.otf"))
return EXIT_FAILURE;

// Big floor
sf::RectangleShape floor(sf::Vector2f(1000.f, 50.f));
floor.setPosition(0.f, 400.f);
floor.setFillColor(sf::Color(10, 180, 30));

//Big floor 2
sf::RectangleShape floor2(sf::Vector2f(500.f, 50.f));
floor2.setPosition(1000.f, 700.f);
floor2.setFillColor(sf::Color(10, 200, 30));

//Big Floor 3
sf::RectangleShape floor3(sf::Vector2f(500.f, 50.f));
floor3.setPosition(1000.f, 900.f);
floor3.setFillColor(sf::Color(10, 200, 30));

//platform1
sf::RectangleShape platform(sf::Vector2f(90.f, 50.f));
platform.setPosition(1140.f, 700.f);
platform.setFillColor(sf::Color::Red);

//platform2
sf::RectangleShape platform2(sf::Vector2f(200.f, 50.f));
platform2.setPosition(1600.f, 700.f);
platform2.setFillColor(sf::Color::Yellow);

//platform3

sf::RectangleShape platform3(sf::Vector2f(200.f, 50.f));
platform3.setPosition(1800.f, 700.f);
platform3.setFillColor(sf::Color::Yellow);

//platform4

sf::RectangleShape floor4(sf::Vector2f(1000.f, 50.f));
floor4.setPosition(0.f, 400.f);
floor4.setFillColor(sf::Color(10, 180, 30));

//platform5

sf::RectangleShape floor5(sf::Vector2f(200.f, 50.f));
floor5.setPosition(2200.f, 700.f);
floor5.setFillColor(sf::Color::Green);

//Circle
sf::CircleShape shape(50);
shape.setFillColor(sf::Color(100, 250, 50));

// Movable player
sf::RectangleShape player(sf::Vector2f(40.f, 40.f));
player.setOrigin(20.f, 20.f);
player.setPosition(400.f, 40.f);
player.setFillColor(sf::Color(10, 30, 180));

// Player for level 2
sf::RectangleShape player1(sf::Vector2f(40.f, 40.f));
player1.setOrigin(20.f, 20.f);
player1.setPosition(400.f, 40.f);
player1.setFillColor(sf::Color(10, 30, 180));

// Player speed
sf::Vector2f speed(3.f, 3.f);

// Platform speed
sf::Vector2f platspeed(3.f, 3.f);

// Gravity value
const float gravity = 980.f;

// Check if we're touching any floor/box
bool touching = false;

//view
sf::View view;

view.reset(sf::FloatRect(0, 0, screenDimensions.x, screenDimensions.y));
view.setViewport(sf::FloatRect(0, 0, 1.0f, 1.0f));

sf::Vector2f position(screenDimensions.x / 2, screenDimensions.y / 2);

//view1
sf::View view1;

view1.reset(sf::FloatRect(0, 0, screenDimensions.x, screenDimensions.y));
view1.setViewport(sf::FloatRect(0, 0, 1.0f, 1.0f));


//Intro
Text title("TEST PLATFORMER",font,50);
title.setPosition(width/2-title.getGlobalBounds().width/2,100);
title.setColor(Color::Blue);

Text start("PRESS ENTER TO CONTIUE",font,30);
start.setPosition(width/2-start.getGlobalBounds().width/2,400);
start.setColor(Color::Red);

//Welcome to level 2
Text LEVEL2("WELCOME TO LEVEL 2",font,50);
LEVEL2.setPosition(width/2-title.getGlobalBounds().width/2,100);
LEVEL2.setColor(Color::Blue);


//Level state
enum state {STARTSCREEN, Level1, Level2};

int GameState=STARTSCREEN;

while(window.isOpen())
{
window.clear();
switch(GameState)
{
case STARTSCREEN:
window.draw(title);
window.draw(start);
break;
case Level1:
window.setView(view);
window.draw(player);
window.draw(floor);
window.draw(floor2);
window.draw(floor3);
window.draw(platform);
window.draw(platform2);
window.draw(platform3);
break;
case Level2:
window.setView(view1);
window.draw(player);
window.draw(floor4);
window.draw(floor5);
window.draw(LEVEL2);
break;

}
window.display();


// Get delta time for frame-rate depended movement
float dt = frametime.restart().asSeconds();

// Event handling
sf::Event event;
while(window.pollEvent(event))
{
if ( (event.type == Event::Closed) ||
((event.type == Event::KeyPressed) && (event.key.code==Keyboard::Escape)) )
window.close();
else
if ((event.type == Event::KeyPressed) && (GameState == STARTSCREEN))
GameState=Level1;
}
if (GameState!=Level1)
continue;

// Slow down horizontal speed
if(speed.x > 6.f)
speed.x -= 3.f;
else if(speed.x < -6.f)
speed.x += 3.f;
else
speed.x = 0.f;

// Adjust vertical speed
if(touching)
speed.y = gravity;
else if(speed.y < gravity)
speed.y += 10.f;
else if(speed.y > gravity)
speed.y = gravity;

// Horizontal movement
if(sf::Keyboard::isKeyPressed(sf::Keyboard::A) && sf::Keyboard::isKeyPressed(sf::Keyboard::D))
speed.x = 0.f;
else if(sf::Keyboard::isKeyPressed(sf::Keyboard::A))
speed.x = -120.f;
else if(sf::Keyboard::isKeyPressed(sf::Keyboard::D))
speed.x = 120.f;
else if(sf::Keyboard::isKeyPressed(sf::Keyboard::Return))
GameState!=Level1;


// Jumping
if(sf::Keyboard::isKeyPressed(sf::Keyboard::W) && touching)
speed.y = -300.f;

// Move the player
player.setPosition(player.getPosition().x + speed.x * dt, player.getPosition().y + speed.y * dt);



//Moving the last platform
// Check collision & position adjustment
if(floor.getGlobalBounds().intersects(player.getGlobalBounds())) // Floor
{
player.setPosition(player.getPosition().x, floor.getPosition().y-player.getOrigin().y);
touching = true;
}
else if(floor2.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, floor2.getPosition().y-player.getOrigin().y);
touching = true;
}
else if(platform.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setFillColor(sf::Color::Red);
player.setPosition(player.getPosition().x, platform.getPosition().y-player.getOrigin().y);
touching = true;
}
else if (platform2.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, platform2.getPosition().y-player.getOrigin().y);
touching = true;

}
else if (platform3.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, platform3.getPosition().y-player.getOrigin().y);
touching = true;

}
else if (floor4.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, floor4.getPosition().y-player.getOrigin().y);
touching = true;

}
else if (floor5.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, floor5.getPosition().y-player.getOrigin().y);
touching = true;

}
else if (floor3.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, floor3.getPosition().y-player.getOrigin().y);
touching = true;
GameState=Level2;

}
else if (floor4.getGlobalBounds().intersects(player.getGlobalBounds()))
{
player.setPosition(player.getPosition().x, floor4.getPosition().y-player.getOrigin().y);
touching = true;

}

else // We're not colliding
touching = false;




position.x = player.getPosition().x + 10 - (screenDimensions.x / 2);
position.y = player.getPosition().y + 10 - (screenDimensions.y / 2);

if(position.x < 0)
position.x = 0;
if(position.y < 0)
position.y = 0;

view.reset(sf::FloatRect(position.x, position.y, screenDimensions.x, screenDimensions.y));



}
}