How to get TileMapLayer single tile data

Help Programming
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1

Godot Version

4.3

Question

I’m trying to get the tile data that the Player is standing on in a 2D top-down game. I have no idea how to do it, have spent days researching. Please help?

Here is my scene setup
image

2

First you need to get the tilemap you want the data from, then do the following:

var tile_data = tilemap.get_cell_tile_data(tilemap.local_to_map(global_position))
3

I tested some TileMapLayer

	[Export] TileMapLayer tileMapLayer;

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			var tile = tileMapLayer.GetCellTileData(tileMapLayer.LocalToMap(GlobalPosition));
			if (IsInstanceValid(tile))
				GD.Print(tile.GetCustomData("CustomData"));

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4

I tried this in C# and it doesn’t work:

var walkable = GetNode<TileMapLayer>("Walkable");

if (walkable != null)
GD.Print("walkable: " + walkable.LocalToMap(Position));

Error: Node not found: “Walkable” (relative to “/root/NoX/Game/Map/Player”).

5

Thanks, but I have no idea where to stick this code.
I’m working inside Player.cs → _PhysicsProcess()

6

Well the error says that it cant find this node. You might want to use the [export]-property to set it in the scene-inspector.

Also you are just callin LocalToMap and not GetCellTileData

7

Whatever you want <_<

using Godot;

namespace TileMapTest;
public partial class Player : CharacterBody2D
{
	[Export] TileMapLayer tileMapLayer;
	public const float Speed = 300.0f;

	public override void _PhysicsProcess(double delta)
	{
		if (Input.IsActionJustPressed("Use"))
		{
			var tile = tileMapLayer.GetCellTileData(tileMapLayer.LocalToMap(GlobalPosition));
			if (IsInstanceValid(tile))
				GD.Print(tile.GetCustomData("CustomData"));
		}

		Vector2 velocity = Velocity;

		Vector2 direction = Input.GetVector("Left", "Right", "Up", "Down");
		if (direction != Vector2.Zero)
		{
			velocity = direction * Speed;
		}
		else
		{
			velocity.X = Mathf.MoveToward(Velocity.X, 0, Speed);
			velocity.Y = Mathf.MoveToward(Velocity.Y, 0, Speed);
		}
		Velocity = velocity;
		MoveAndSlide();
	
}
8

Error: Node not found: “Walkable” (relative to “/root/NoX/Game/Map/Player”).
Walkable is not child of the player,
var walkable = GetNode<TileMapLayer>("../Walkable");

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9

Putting a TileMapLayer inside of the player seems like the wrong thing to do.

10

Then why you look there?

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this why I show how to select sibling, or just use [Export] and set manually in inspector.

Anyway why you needed Walkable?, what you planing do? @nanohard

11

I already tried to do "../Walkable" but it doesn’t work. I also tried with an absolute path. It all leads to the same error.

12

Cannot be Error: Node not found: “Walkable” (relative to “/root/NoX/Game/Map/Player”).
just use [Export]

13

Can be

Node not found: "../Walkable" (relative to "/root/NoX/Game/Map/Player")
and
Node not found: "Walkable" (relative to "/root/NoX/Game/Map/Player")
and
Node not found: "/root/NoX/Game/Map/Walkable" (absolute path attempted from "/root/NoX/Game/Map/Player").

14

Try get any sibling node?

15

That’s where the movement is done, inside _PhysicsProcess(). So I figure that’s the best place to check for where the player is standing and/or moving to. I just can’t figure out why it won’t let me look at the sibling node.

16

try this

			var children = GetNode("..").GetChildren();
			foreach (var item in children)
			GD.Print(item.Name);

you should have list of children’s in output.
to not get spammed use in ready

17

After changing the scene order to the following, I got it to work.

Game
    Map
        TIleMapLayer
    Player

var walkable = GetNode<TileMapLayer>("../Map/TileMapLayer");