Wall colliders

[shut imp]

I am creating a maze game with bevy.
The image is that maze. Each green dot represents a MazeNode and the arrow is a pointer to its parent:

#[derive(Component)]
struct MazeNode {
  position: Vec2,
  parent: Option<Entity>,
}

The nodes and its parent are build in a way that the maze is a root directed tree. Meaning that if you follow the arrows, starting from any node, you will end at the root.

The maze is saved with a resource:

#[derive(Resource, Debug)]
pub struct Maze {
    pub root: Entity,
    pub grid: Vec<Vec<Entity>>,
    pub cell_size: f32,
}

In the game, the green dots and the arrows will not be visable for the user. (just for debug)

The way I draw the maze itself is as follows:
Setup: Draw a big white square the size of the maze.
Update: Draw paths for every node to its parent.

This way I dont have to store the children of each node too.

Now I want to introduce collision to the walls. I added rapier to the project.
The problem is that I dont render the walls, I render the paths and that makes it looks like I render the walls.

[patent cargo]

If you only really need simple unoptimized collisions, you could implement your own by blocking movement if there is a wall.

Otherwise if you want to use a physics engine then the way i'd do it is to iterate through every cell, and spawn individual rectangle colliders everywhere a wall is

[shut imp]

so creating a highmap than?

[patent cargo]

I don't know what a highmap is, but I think this would be overcomplicating it. You can just spawn a rectangle collider for each wall basically