koobas.hobune.stream
Regenerate CompositeCollider2D at runtime
I'm trying to regenerate CompositeCollider2D at runtime. Code as simple as
private void TileColliderTest()
{
Vector3Int tilePosition = new Vector3Int(-7, -3, 0);
print(SolidsTilemap.GetColliderType(tilePosition)); // Sprite
SolidsTilemap.SetColliderType(tilePosition, Tile.ColliderType.None);
print(SolidsTilemap.GetColliderType(tilePosition)); // None
CompositeCollider2D cc2d = SolidsTilemap.GetComponent<CompositeCollider2D>();
cc2d.generationType = CompositeCollider2D.GenerationType.Manual;
cc2d.GenerateGeometry();
}
and nothing happens. But if i press "Regenerate Collider" in inspector it regenerates collider immediately. Is it a bug, or am i forgetting something?
Best Answer
Answer1.
Try changing setting CompositeCollider2D.GenerationType to Synchronous from Manual.
Answer2.
Try waiting 1 frame after updating tilemap content.
using UnityEngine;
using UnityEngine.Tilemaps;
using System.Collections;
public class Playground : MonoBehaviour {
[SerializeField] private TileBase tile;
[SerializeField] private Tilemap tilemap;
private IEnumerator Start()
{
for (int x = 0; x < 3; x++)
{
for (int y = 0; y < 3; y++)
{
tilemap.SetTile(new Vector3Int(x, y, 0), tile);
}
}
yield return new WaitForEndOfFrame(); // need this!
tilemap.GetComponent<CompositeCollider2D>().GenerateGeometry();
yield return new WaitForEndOfFrame();
}
}
Above code can update collider with dynamic tile generation. But, if we remove "// need this!" line, collder can not update.
I expect that this is bug of any component.
If you can use this workaround, please try it.
