Messages

1

General / Re: resolution independant movement?

« on: October 13, 2018, 01:01:19 am »

Thanks I'll need to give the documentation a good read appreciate the help

2

General / Re: resolution independant movement?

« on: October 10, 2018, 06:15:34 pm »

Thanks for the reply appreciate it. I have set up a rudimentary frame limiter just capped it at 60 didn't use the built in feature just used a clock and timer to only draw every 60th of a second. I also just started using the view last night which unfortunately didn't help either.

the problem is that when you say move 1 it literally means 1 pixel so when I resize the window 1 pixel is either more or less than the original distance causing the speed variation. Do you know any way to do something similar to resolution scaling where I can set the internal resolution and it will just stretch the image to the window while remaining at the internal resolution?

3

General / resolution independant movement?

« on: October 10, 2018, 01:43:26 am »

Hi all,

please excuse me if this is the wrong place to post such a question, this is my first post. I have recently started to learn c++ with SFML just messing around really and I have hit a problem I can't seem to fix. Basically if I set my movement speed to say for example 1 when I change the window size the game either speeds up or slows down as the move function directly related to pixels. I wonder if anyone has a solution for me to make the speed constant regardless of resolution. I've attached a small part of code that I was using to test endless scrolling background it's very simple I will be padding it out more and incorporating an array of textures that will be semi randomly picked but for now I was just testing. Appreciate any help you can give me.

#include "paralax_background.h"

paralax::paralax(sf::String texture_1_src, sf::String texture_2_src)
{
        if (!texture_1.loadFromFile(texture_1_src))
        {
                // error...
                std::cout << "loading failed" << std::endl;
        }
        back_1.setTexture(texture_1);
        back_1.setOrigin(sf::Vector2f(back_1.getScale().x / 2, back_1.getScale().y / 2));

        if (!texture_2.loadFromFile(texture_2_src))
        {
                // error...
                std::cout << "loading failed" << std::endl;
        }
        back_2.setTexture(texture_2);
        back_2.setOrigin(sf::Vector2f(back_2.getScale().x / 2, back_2.getScale().y / 2));
        back_2.setPosition(1000, 0); // TODO change to windwo width// width of image/ window !!
}

void paralax::scroll(sf::RenderWindow & window) //TODO make for loop that loops through array of backgrounds
{
       
        speed = 0.2f;


                back_1.move(-speed, 0);

                if (back_1.getPosition().x <= -1000) {
                        back_1.setPosition(0 + back_1.getLocalBounds().width , 0);
                        //back_2.setPosition(back_2.getLocalBounds().width * 2, 0);
                }

                back_2.move(-speed, 0);

                if (back_2.getPosition().x <= -1000) {
                        back_2.setPosition(0 + back_2.getLocalBounds().width, 0);
                }
       
}

void paralax::Draw(sf::RenderWindow & window)
{

        window.draw(back_1);
        window.draw(back_2);

}