Messages

1

General / Pong- How would I make the ball bounce of at different angles?

« on: October 03, 2013, 04:01:28 am »

Hey. I am making my first game, and so far handled everything else but this. The two paddles just bounce the ball in a straight line, and that isn't fun at all. I am wondering, how would I make it bounce off at an angle? PLEASE provided example code if possible   

2

Graphics / Re: How would I cause collision to the window?

« on: October 02, 2013, 10:41:50 pm »

Can I have an example please? I have been able to do it for the upward collision, but not the downwards.

Similarly for the lower bound, you'll want to prevent your paddle lower bound (paddle1.getPosition().y + paddle1.getSize().y) to move lower than the window lower bound (window.getSize().y). So if the the paddle lower bound is > to the window bottom bound, you want to set the paddle lower bound to the window lower bound which translate to setting the paddle y position to the window lower bound minus the paddle height.

what exactly do you mean?

3

Graphics / [SOLVED] How would I cause collision to the window?

« on: October 02, 2013, 01:51:59 pm »

Me again. I am still attempting my pong clone. I have movement and everything down. It's just that when I move the paddle up, it continues forever, is there a way to, erm, stop that?

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

using namespace std;

float ballSpeed = 400.0f;
float paddleSpeed = 10000.0f;
float ballVelX = 10;
float ballVelY = 10;


sf::Clock cloc;
sf::Time tim;


bool isPlaying = true;

sf::Vector2i screenSize(800,600);

int main()
{

    sf::CircleShape pongBall;
    //sf::CircleShape::
    pongBall.setFillColor(sf::Color::Red);
    pongBall.setRadius(25.0f);
    pongBall.setPosition(400, 300);

    sf::RectangleShape paddle1;
    // sf::RectangleShape::
    paddle1.setFillColor(sf::Color::Yellow);
    paddle1.setSize(sf::Vector2f(50, 150));
    paddle1.setPosition(0, 175);

    sf::RectangleShape paddle2;
    // sf::RectangleShape::
    paddle2.setFillColor(sf::Color::Yellow);
    paddle2.setSize(sf::Vector2f(50, 150));
    paddle2.setPosition(750, 175);

    pongBall.setPosition(400, 300);
    paddle1.setPosition(1, 250);
    paddle2.setPosition(784, 250);

    sf::FloatRect boundingBox = paddle1.getGlobalBounds();

    sf::FloatRect boundbox2 = paddle2.getGlobalBounds();
    if(boundingBox.intersects(boundbox2)){

    }

    float t = rand() % 1;
    float w = rand() % 1;



    sf::RenderWindow window(sf::VideoMode(screenSize.x, screenSize.y), "Pro");


    cloc.restart();

    while(window.isOpen()){
        sf::Event event;

    window.pollEvent(event);
    if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
{
    // left key is pressed: move our character
    paddle1.move(0, -1);
}
    if (sf::Event::Closed){
        window.close();
    }
    if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
    {
        paddle1.move(0, 1);
    }
    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up))
    {
        paddle2.move(0, -1);
        if (paddle2.getPosition().x >= window.getPosition().x){



        }
    }
    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Down)){
        paddle2.move(0, 1);
    }
    window.clear(sf::Color::Red);
    window.draw(paddle1);
    window.draw(paddle2);
    window.display();


}







}

 

4

Graphics / Re: Can't get a smooth motion (First Time)

« on: October 02, 2013, 05:57:08 am »

Don't mix real-time inputs and event handling.
Read the linked tutorials (again), especially pay attention to when you should use what and where you should use what.

Sorry, but I am pretty new. Where would I find that?

5

Graphics / [SOLVED]Can't get a smooth motion (First Time)

« on: October 02, 2013, 05:38:23 am »

I am making a pong clone for a first project, but so far the paddle's movement choppy, not laggy, but just skips from one place to another. Try this out and please tell me how to fix this.

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

using namespace std;

float ballSpeed = 400.0f;
float paddleSpeed = 10000.0f;
float ballVelX = 10;
float ballVelY = 10;


sf::Clock cloc;
sf::Time tim;


bool isPlaying = true;

sf::Vector2i screenSize(800,600);

int main()
{

    sf::CircleShape pongBall;
    //sf::CircleShape::
    pongBall.setFillColor(sf::Color::Red);
    pongBall.setRadius(25.0f);
    pongBall.setPosition(400, 300);

    sf::RectangleShape paddle1;
    // sf::RectangleShape::
    paddle1.setFillColor(sf::Color::Yellow);
    paddle1.setSize(sf::Vector2f(50, 250));
    paddle1.setPosition(0, 175);

    sf::RectangleShape paddle2;
    // sf::RectangleShape::
    paddle2.setFillColor(sf::Color::Yellow);
    paddle2.setSize(sf::Vector2f(50, 250));
    paddle2.setPosition(750, 175);

    pongBall.setPosition(400, 300);
    paddle1.setPosition(1, 250);
    paddle2.setPosition(784, 250);

    float t = rand() % 1;
    float w = rand() % 1;



    sf::RenderWindow window(sf::VideoMode(screenSize.x, screenSize.y), "Pro");

    float deltaTime = cloc.restart().asSeconds();

    cloc.restart();

    while(window.isOpen()){
        sf::Event event;

        while(window.pollEvent(event)){
            if(event.type == sf::Event::Closed){
                window.close();
            }
            if(sf::Keyboard::isKeyPressed(sf::Keyboard::W)){
                paddle1.move(0, paddleSpeed * cloc.getElapsedTime().asSeconds());
                if(paddle1.getPosition().y < 0){



                paddle1.setPosition(15, 0);
                }
                if(paddle1.getPosition().y > window.getSize().y){
                    paddle1.setPosition(10, 10);
                }
            }
            if(sf::Keyboard::isKeyPressed(sf::Keyboard::S)){
                paddle1.move(0,  paddleSpeed * cloc.getElapsedTime().asSeconds());
                if(paddle1.getPosition().y > 491)
                paddle1.setPosition(1, 490);

                cout << paddle1.getPosition().y << endl;
                     if(paddle1.getPosition().y > window.getSize().y){
                    paddle1.setPosition(10, 10);
                }
        }

            if(sf::Keyboard::isKeyPressed(sf::Keyboard::Space)){


            }

        }
    window.clear();
    window.draw(pongBall);
    window.draw(paddle1);
    window.draw(paddle2);
    window.display();

}




}

 

6

General discussions / Re: Anyone interested in collaboration

« on: October 02, 2013, 05:31:58 am »

Don't know if you are still interested, but i'll join!