Messages

1

Graphics / Re: Moving rectangle

« on: November 02, 2021, 02:38:39 pm »

Thank you very much, i used move function to solve te problem. It toke me lot of time trying to solve it!!

2

Graphics / Moving rectangle

« on: November 01, 2021, 10:05:56 pm »

Hello to everyone! I'm learning sfml and I'm trying to move a rectangleShape based on input. The problem is that when i press a key for change direction, it starts moving from top, and not from last reached position. It has to be a grid-like movement. Can someone help me with this? How should I change the logic to achive that?

#include <iostream>
#include <cstdlib>
#include "game.h"
using namespace std;

int main()
{
        sf::RenderWindow window(sf::VideoMode(600, 600), "Move shape");
        sf::RectangleShape shape(sf::Vector2f(20, 20));
        shape.setFillColor(sf::Color::Red);
        shape.setPosition(sf::Vector2f(20, 20));

        int speed = 15;
        Clock clock;
        float felapsed = 0;
        sf::Vector2f dir(1, 0);
        int x = 9;
        int y = 0;

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

                while (window.pollEvent(e))
                {
                        if (e.type == sf::Event::Closed)
                                window.close();
                }

                if (sf::Keyboard::isKeyPressed(Keyboard::Up)) dir = sf::Vector2f(0, -1);

                else if (sf::Keyboard::isKeyPressed(Keyboard::Down)) dir = sf::Vector2f(0, 1);

                else if (sf::Keyboard::isKeyPressed(Keyboard::Right)) dir = sf::Vector2f(1, 0);

                else if (sf::Keyboard::isKeyPressed(Keyboard::Left)) dir = sf::Vector2f(-1, 0);


                float frameTime = 1.0f / speed;

                window.clear();

                if (felapsed >= frameTime)
                {
                        if (dir == sf::Vector2f(1, 0))
                                x++;
                        else if (dir == sf::Vector2f(-1, 0))
                                x--;
                        else if (dir == sf::Vector2f(0, 1))
                                y++;
                        else if (dir == sf::Vector2f(0, -1))
                                y--;

                        shape.setPosition(dir.x*x*16, dir.y * y * 16);

                        window.draw(shape);

                        window.display();

                        felapsed -= frameTime;
                       
                }

                felapsed += clock.restart().asSeconds();
        }

        return 0;
}
 

3

Graphics / Re: Snake creation not renders

« on: October 26, 2021, 09:28:25 am »

Thank you so musch!

4

Graphics / Snake creation not renders

« on: October 25, 2021, 09:51:53 pm »

Hello to everyone. I'm trying to create step by ste a snake, but i'm struggling with simple body creation. can you explain me why my code does not renders thee rectangle shapes as I want.

Code: [Select]

int main(int argc, char **argv)
{
    sf::RenderWindow window(sf::VideoMode(600, 600), "Snake");
    std::vector<sf::RectangleShape> body(3);


    for (int i = 0; i < 3; i++)
    {
        body.push_back(sf::RectangleShape(sf::Vector2f(100, 100)));
        body[i].setFillColor(sf::Color::Green);
     }
   
    body[0].setPosition(100, 200);
    body[1].setPosition(205, 200);
    body[2].setPosition(310, 200);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear();

        window.draw(body[0]);
        window.draw(body[1]);
        window.draw(body[2]);
        window.display();
    }

return 0;
}