#include <SFML/Graphics.hpp>
#include <SFML/Audio.hpp>
#include <iostream>

#define SCREEN_HEIGHT 800
#define SCREEN_WIDTH 600

int main(){

    //Creating the window
    sf::RenderWindow window(sf::VideoMode(SCREEN_WIDTH,SCREEN_HEIGHT), "Awesome Game");
    window.setFramerateLimit(60);    //Set the frame limit to 60 FPS
    window.setKeyRepeatEnabled(false);

    bool play = true;      //Variable that keeps the game loop running
   
    sf::Event event;

    //Font
    sf::Font font;
    if(font.loadFromFile("Data/BRITANIC.ttf") == 0){
        return 1;
    }

    //States
    bool rButton = false;
    bool leftButton = false;
    bool rightButton = false;
    bool upButton = false;
    bool downButton = false;

    //Variables
    int rectRotation = 0;
    int xVelocity = 0;
    int yVelocity = 0;

    //Shapes
    sf::RectangleShape shape1;
    shape1.setSize(sf::Vector2f(50,50));
    shape1.setPosition(300,300);

    
    //Game loop
    while(play==true){

        //EVENTS
        while(window.pollEvent(event)){
            

            if (event.type == sf::Event::Closed ){
                play = false;
            }

            if(event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::R){
                rButton = true;
            }

            if(event.type == sf::Event::KeyReleased&& event.key.code == sf::Keyboard::R){
                rButton = false;
            }

            if(event.type = sf::Event::KeyPressed){
                if(event.key.code == sf::Keyboard::Right) rightButton =  true;
                if(event.key.code == sf::Keyboard::Left) leftButton =  true;
                if(event.key.code == sf::Keyboard::Up) upButton =  true;
                if(event.key.code == sf::Keyboard::Down) downButton =  true;
            }

            if(event.type = sf::Event::KeyReleased){
                if(event.key.code == sf::Keyboard::Right) rightButton =  false;
                if(event.key.code == sf::Keyboard::Left) leftButton =  false;
                if(event.key.code == sf::Keyboard::Up) upButton =  false;
                if(event.key.code == sf::Keyboard::Down) downButton =  false;
            }

        }

        //LOGIC
        if(rButton == true){
            rectRotation++;
            shape1.setRotation(rectRotation);

        }

        //Movement
        //x axis
        if(rightButton == true){
            xVelocity = 5;
        }

        if(leftButton == true){
            xVelocity = -5;
        }

        if(leftButton == true && rightButton == true){
            xVelocity = 0;
        }

        if(leftButton == false && rightButton == false){
            xVelocity = 0;
        }

        //y axis
        if(downButton == true){
            yVelocity = 5;
        }

        if(upButton == true){
            yVelocity = -5;
        }

        if(upButton == true && downButton == true){
            yVelocity = 0;
        }

        if(leftButton == false && rightButton == false){
            yVelocity = 0;
        }


        //Move
        shape1.move(xVelocity,yVelocity);

        

       
        


        //RENDERING
        window.clear();
        window.draw(shape1);
        window.display();

    }





    //Clean up
    window.close();
    return 0;

}

    

 

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#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
} 

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
} 

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}  

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition); 

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}