Messages

1

Graphics / Re: Text file to tilemap, where to start?

« on: October 25, 2022, 08:23:45 pm »

Oh, I see now! I take it this is done in the ifstream loop from my code snippet, right?

2

Graphics / Re: Text file to tilemap, where to start?

« on: October 25, 2022, 07:10:45 pm »

unfortunately, that didn’t work for me, it results in an operator error. I greatly appreciate it though.

what I am trying to wrap my head around is assigning those 0s to chars, no matter what I try, it always results in a blank screen (I assume the txt file is not being read at all). At this point I’m very stumped.

3

Graphics / Re: Text file to tilemap, where to start?

« on: October 24, 2022, 08:17:01 pm »

No, these characters would be mapped to an individual texture.

I ended up following the VertexArray tutorial from the docs, with the addition that it reads from my .txt file to make my map https://www.sfml-dev.org/tutorials/2.5/graphics-vertex-array.php.

My issue at the moment is that, it only accepts my text file if it is composed of numbers https://imgur.com/a/ipgZP73, rather than the aforementioned characters (#,*, . , O) https://imgur.com/a/xUmnALQ

At this point I am only left with turning those numerical values of the textures into chars, so map.txt can be read properly

This is a code snippet of how I process the text file which I suspect is part of the problem
```
bool load(const std::string& tileset, sf::Vector2u tileSize) {
        if (!m_tileset.loadFromFile(tileset))
            return false;
        std::vector<std::vector<int> > tiles;
        std::ifstream stream("map.txt");
        stream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');  // ignore first line
        for (std::string line; std::getline(stream, line);) {
            tiles.push_back(std::vector<int>());
            std::stringstream ss(line);
            std::copy(std::istream_iterator<int>(ss), std::istream_iterator<int>(), std::back_inserter(tiles.back()));
           ........
        }
         .....
(this is from the sfml vertex array tutorial that I followed)
// define its 4 corners
                quad[0].position = sf::Vector2f(i * tileSize.x, j * tileSize.y);
                quad[1].position = sf::Vector2f((i + 1) * tileSize.x, j * tileSize.y);
                quad[2].position = sf::Vector2f((i + 1) * tileSize.x, (j + 1) * tileSize.y);
                quad[3].position = sf::Vector2f(i * tileSize.x, (j + 1) * tileSize.y);

                // define its 4 texture coordinates
                quad[0].texCoords = sf::Vector2f(tu * tileSize.x, tv * tileSize.y);
                quad[1].texCoords = sf::Vector2f((tu + 1) * tileSize.x, tv * tileSize.y);
                quad[2].texCoords = sf::Vector2f((tu + 1) * tileSize.x, (tv + 1) * tileSize.y);
                quad[3].texCoords = sf::Vector2f(tu * tileSize.x, (tv + 1) * tileSize.y);

From what I've gathered, I need to somehow map these quad positions to the chars I want to use, which is where im at right now

4

Graphics / Text file to tilemap, where to start?

« on: October 23, 2022, 10:55:17 pm »

So, I want to draw a 2d tilemap based on my text file. I followed this https://www.sfml-dev.org/tutorials/2.5/graphics-vertex-array.php from the docs, but the issue here is that my text file isn't composed of numbers, rather they are characters (#,$, . ,@). So a my text file looks something like this.

#########
#.......$..........#
#...............@...#
#...$..............#
#..................#
#....$..........$..#


with # being the walls, $ the loot items,@ as the character, and . as the floor. How would I even do something like this without numbers?