Trying to figure out where the error is

[Knobs]

OK so i'm writing this program for a game we're making in school. I'll send the codes and I would like someone to let me know how i can fix these errors.

#include <SFML/Window.hpp>
#include <SFML/Graphics.hpp>
 
using namespace std;
using namespace sf;
 
constexpr int windowWidth{800}, windowHeight{600};
constexpr float ballRadius{10.f}, ballVelocity{8.f};
 
//constants for the bat;
constexpr float batWidth{60.f},batHeight{10.f},batVelocity{6.f};
 
struct Bat{
    //CircleShape is an SFML class that defines a renderable circle
    RectangleShape shape;
    //2D vector that stores the Bat's velocity
    Vector2f velocity;
    //creating the Bat constructor
    //argument mX -> starting x coordinate
    //argument mY -> starting y coordinate
    Bat(float mX,float mY);
    {
        shape.setPosition(mX,mY);
        shape.setSize(batWidth,batHeight);
        shape.setFillColor(Color::Red);
        shape.setOrigin(batWidth/2,batHeight/2);
    };
// Move update
    void update(){
        shape.move(velocity);
 
        if(Keyboard::isKeyPressed(Keyboard::Key::Left) && left() > 0)
            velocity.x = -batVelocity;
        else if(Keyboard::isKeyPressed(Keyboard::Key::Right))
            velocity.x = batVelocity;
        else
            velocity.x = 0;
    }
//create property methods to easily get commonly used values
    float x()         { return shape.getPosition().x; }
    float y()         { return shape.getPosition().y; }
    float left()    { return x() - shape.getSize().x/2.f; }
    float right()    { return x() + shape.getSize().x/2.f; }
    float top()        { return y() - shape.getSize().y/2.f; }
    float bottom()    { return y() + shape.getSize().y/2.f; }
 
};
//creating the template
template<class T1, class T2> bool isIntersecting(T1& mA, T2& mB);
{
     mA.right => mB.left()&& mA.left() <= mB.right() && mA.bottom()> =mB.top() <= mB.bottom();
 
    return;
 
}
//creating the collision functions
void testCollision(Bat mBat, Ball mBall);
 
{
    if(!isIntersecting(mBat, mBall)) return;
    mBall.Velocity.y = -ballVelocity;
 
    if(mBall.x()<mBat.x()) mBall.velocity.x = -ballVelocity;
    else mBall.velocity.x = ballVelocity;
};
//creating a circle class/struct for the Ball
struct Ball
{
    //CircleShape is an SFML class that defines a renderable circle
    CircleShape shape;
 
    //2D vector that stores the Ball's velocity
    Vector2f velocity{-ballVelocity, -ballVelocity};
 
    //creating the Ball constructor
    //argument mx -> starting x coordinate
    //argument my -> starting y coordinate
    Ball(float mX, float mY)
    {
        //apply position, radius, colour and origin to the CircleShape  shape
        shape.setPosition(mX,mY);
        shape.setRadius(ballRadius);
        shape.setFillColor(Color::Red);
        shape.setOrigin(ballRadius, ballRadius);
    }
    //Update the ball: by moving is shape by the current velocity
    void update()
    {
        shape.move(velocity);
        //we need to keep the ball inside the screen
        //if it is leaving towards the left, we need to set horizontal velocity to a positive
        //value
        if(left() < 0) velocity.x = ballVelocity;
        //otherwise, if it is leaving towards the right, we need to right we need to set
        // velocity a negative value
        else if(right() > windowWidth) velocity.x = -ballVelocity;
 
        //apply the same idea to the top and bottom collisions
        if(top() < 0) velocity.y = ballVelocity;
        else if(bottom() > windowHeight) velocity.y = -ballVelocity;
    }
    //create property methods to easily get commonly used values
    float x()        {return shape.getPosition().x; }
    float y()        {return shape.getPosition().y; }
    float left()    {return x() - shape.getRadius(); }
    float right()    {return x() + shape.getRadius(); }
    float top()        {return y() - shape.getRadius(); }
    float bottom()    {return y() + shape.getRadius(); }
};
 
int main()
{
    //create an instance of Ball positioning it at the centre of the window
    Ball ball(windowWidth / 2, windowHeight / 2);
    Bat bat(windowWidth / 2, windowHeight - 5);
 
    //creation of the game window
    RenderWindow window{{windowWidth, windowHeight}, "Space Pool- 1"};
    window.setFramerateLimit(60);
 
    //Game loop
    while(true)
    {
        //clear the window from previously drawn graphics
        window.clear(Color::Blue);
 
        //if "Escape" is pressed, break out of the loop
        if(Keyboard::isKeyPressed(Keyboard::Key::Escape)) break;
 
        //every loop iteration, we need to update the ball
        ball.update();
        bat.update();
 
 
        //render the Ball instance on the window
        window.draw(ball.shape);
        window.draw(bat.shape);
 
        //Show the window contents
        window.display();
    }
    return 0;
}

[weaknessforcats]

What errors are you speaking of? Debugging compiler and run-time errors is a skill each person needs to develop. Therefore, I usually don't just jump in and fix your code but I will help you if you steer me a little.

[Knobs]

I'm using code blocks 13.12
When i try compile it i'm getting this error: expected unqualified-id before '{' token. on lines 22,50 and 59

[techboy]

On line 21 their is no need of semicolon same goes with line 50 and 59.

[Knobs]

OK. You're saying that but when I try to compile it, i'm getting more errors now when I remove the semicolon

[weaknessforcats]

Write this program:

int main()
{
 
}

Compile it and verify there are no errors.

Then change it to:

#include <SFML/Window.hpp>
#include <SFML/Graphics.hpp>
 
 using namespace std;
 using namespace sf;
 
int main()
{
 
}

Now compile it again and verify there are no errors.

Add your struct declarations. Recompile and verify there are no errors.

Repeat this over and over each time adding code and each time compiling an verifying there are no errors.

Writing 10,000 lines of code and then trying to compile won't work. Been there. Done that.

[Knobs]

OK Thanks I'll try that.