using System.Collections.Generic;
using UnityEngine;
public class WallTransparencyManager : MonoBehaviour
{
public GridManager gridManager;
public float transparentAlpha = 0.3f;
public float opaqueAlpha = 1f;
public LayerMask wallLayer;
private HashSet<GameObject> wallsFadedThisFrame = new HashSet<GameObject>();
void Update()
{
if (gridManager == null) return;
Tile[,] grid = gridManager.GetGrid();
if (grid == null) return;
Vector3 cameraPos = transform.position;
wallsFadedThisFrame.Clear();
foreach (Tile tile in grid)
{
if (tile == null) continue;
Vector3 tilePos = tile.transform.position;
Vector3 direction = (tilePos - cameraPos).normalized;
float distance = Vector3.Distance(cameraPos, tilePos);
Debug.DrawRay(cameraPos, direction * distance, Color.red, 0.1f);
if (Physics.Raycast(cameraPos, direction, out RaycastHit hit, distance, wallLayer))
{
GameObject wall = hit.collider.gameObject;
FadeWall(wall);
}
}
ResetAllWalls(grid);
}
private void FadeWall(GameObject wall)
{
if (wall == null || wallsFadedThisFrame.Contains(wall)) return;
Debug.Log($"Fading wall '{wall.name}' to transparent.");
SetWallAlpha(wall, transparentAlpha);
wallsFadedThisFrame.Add(wall);
}
private void ResetAllWalls(Tile[,] grid)
{
foreach (Tile tile in grid)
{
if (tile == null) continue;
ResetWallIfNotFaded(tile.wallNorth);
ResetWallIfNotFaded(tile.wallSouth);
ResetWallIfNotFaded(tile.wallEast);
ResetWallIfNotFaded(tile.wallWest);
}
}
private void ResetWallIfNotFaded(GameObject wall)
{
if (wall == null) return;
if (!wallsFadedThisFrame.Contains(wall))
{
Debug.Log($"Resetting wall '{wall.name}' to opaque.");
SetWallAlpha(wall, opaqueAlpha);
}
}
private void SetWallAlpha(GameObject wall, float alpha)
{
Renderer rend = wall.GetComponent<Renderer>();
if (rend == null) return;
Material mat = rend.material;
Color color = mat.color;
color.a = alpha;
mat.color = color;
if (alpha >= 1f)
{
SetMaterialToOpaque(mat);
}
else
{
SetMaterialToTransparent(mat);
}
}
private void SetMaterialToOpaque(Material mat)
{
mat.SetFloat("_Surface", 0); // 0 = Opaque
mat.DisableKeyword("_SURFACE_TYPE_TRANSPARENT");
mat.EnableKeyword("_SURFACE_TYPE_OPAQUE");
mat.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Geometry;
Debug.Log($"Set material '{mat.name}' to OPAQUE.");
}
private void SetMaterialToTransparent(Material mat)
{
mat.SetFloat("_Surface", 1); // 1 = Transparent
mat.EnableKeyword("_SURFACE_TYPE_TRANSPARENT");
mat.DisableKeyword("_SURFACE_TYPE_OPAQUE");
mat.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;
Debug.Log($"Set material '{mat.name}' to TRANSPARENT.");
}
}
#my shawty code
magic hound
its super unoptimized i think and tbh idek how its working
i frankenstined it hard
humble phoenix
eeeh. I wonder if the keyword/"_Surface" prop/render queue shenanigans that you're doing might be related...
humble phoenix
Well, I was wondering if all that is required at all.
magic hound
it may not be. should i jsut cut it out entirely?
humble phoenix
Ah, I see.
The way I usually do it, is by having a separate transparent material prepared, and then I just swap between the materials.