void AddTilemapCollider2Ds(Transform parent)
{
// find all grids
Grid[] grids = GameObject.FindObjectsOfType <Grid>();
foreach (Grid grid in grids)
{
// find tilemaps (we only care about those that have colliders)
var tilemaps = grid.GetComponentsInChildren <Tilemap>().Where(
tm => tm.GetComponent <TilemapCollider2D>()
).ToList();
foreach (Tilemap tilemap in tilemaps)
{
// go through each cell
BoundsInt bounds = tilemap.cellBounds;
for (int y = bounds.position.y; y < bounds.size.y; ++y)
{
for (int x = bounds.position.x; x < bounds.size.x; ++x)
{
// find out if it has a collider
Vector3Int cellPosition = new Vector3Int(x, y, 0);
if (tilemap.GetColliderType(cellPosition) != Tile.ColliderType.None)
{
// convert to world space
Vector3 worldPosition = tilemap.GetCellCenterWorld(cellPosition);
// note: creating a primitive is necessary in order for it to bake properly
var go = GameObject.CreatePrimitive(PrimitiveType.Cube);
go.isStatic = true;
go.transform.parent = parent;
// position via offset and transformpoint
go.transform.position = new Vector3(worldPosition.x, 0, worldPosition.y);
// scale depending on scale * collider size (circle=radius/box=size/...)
go.transform.localScale = NavMeshUtils2D.ScaleTo3D(tilemap.transform.localScale);
// rotation
go.transform.rotation = Quaternion.Euler(NavMeshUtils2D.RotationTo3D(tilemap.transform.eulerAngles));
MakeUnwalkable(go);
}
}
}
}
}
}
