How to parse intgrid and autotile layers? about ldtkloader HOT 4 CLOSED

Yeah a way to get all tagged/typed int grid tiles would be fantastic.

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To get the int grid values, you can use the getIntGridValue method of a Layer. It will return an IntGridValue that contains the value, name and color.

To get the tiles rendered in an Autolayer, you can use the allTiles and getTile methods of a Layer. These methods return Tile instances that are created using the "autoLayerTiles" data from the ldtk file. You can look at the SFML or SDL examples, they both use layer.allTiles() to iterate on the tiles in an Autolayer to render the tiles.

This made me realize the wiki page for the ldtk::Tile class is missing. I will create it soon.

from ldtkloader.

Thanks. But is there any way to get a list of tiles with their int grid id specifically? For example, if i wanted to mark those tiles as impassible, for creating collision boxes, or if i wanted to mark specific terrain types, etc. Maybe a key value pair of position, intgridvalue?

Something like: map<vec2, intgrid> ?

from ldtkloader.

Okay, so if I understand correctly, you would like a way to get all tiles that have a specific intgrid value ?

An API like this:

auto Layer::getIntGridValuePositions(const string& name) -> vector<InPoint>;
auto Layer::getIntGridValuePositions(int intgrid_value) -> vector<InPoint>;

This could return all the position in grid coordinates of an IntGridValue occurrences.

For example, to get the positions of tiles that have the IntGridValue { 1, "collision", Color::Red} , you would do:

const auto& collision_tiles_pos = layer.getIntGridValuePositions("collision");

for (const auto& pos : collision_tiles_pos) {
    const auto& tile = layer.getTile(pos.x, pos.y);
    if (tile != ldtk::Tile::None) {
        // a tile exists, create a collision
    }
}

Is this what you are looking for ?

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