private void SetTexture()
{
FoWTexture.Apply();
fogOfWarRenderer.GetPropertyBlock(_mpb);
_mpb.SetTexture(_textureID, FoWTexture);
fogOfWarRenderer.SetPropertyBlock(_mpb);
}
public void UpdateFogOfWar(Vector3 playerPosition)
{
Vector3Int tilePosition = WorldToTile(playerPosition - new Vector3(0.5f, 0.5f, 0f));
int intViewRange = (int)_viewRange + 1;
BoundsInt fowBounds = new BoundsInt(tilePosition - new Vector3Int(intViewRange, intViewRange, 0), new Vector3Int(2 * intViewRange + 1, 2 * intViewRange + 1, 0));
float[,] visibility = new float[fowBounds.size.x, fowBounds.size.y];
ShadowCast.CalculateVisibility(playerPosition - _origin, fowBounds, _tiles, visibility);
for (int x = fowBounds.xMin; x < fowBounds.xMax; x++)
{
if (x < 0 || x >= _size.x)
{
continue;
}
for (int y = fowBounds.yMin; y < fowBounds.yMax; y++)
{
if (y < 0 || y >= _size.y)
{
continue;
}
Vector3Int pos = new Vector3Int(x, y, 0);
TileType tileType = _tiles[x, y];
float distance = Vector3.Distance(playerPosition - new Vector3(0.5f, 0.5f, 0f), TileToWorld(pos));
Color pixelColor = FoWTexture.GetPixel(pos.x, pos.y);
Color targetColor = pixelColor;
float fuzzRange = 2f;
float vis = visibility[x - fowBounds.xMin, y - fowBounds.yMin];
if (distance < _viewRange - fuzzRange)
{
targetColor.r = 1f;
//targetColor.g = 1f;
}
else if (distance > _viewRange)
{
targetColor.r = 0f;
}
else
{
float frac = (_viewRange - distance) / fuzzRange;
targetColor.r = frac;
//targetColor.g = Mathf.Max(pixelColor.g, frac);
}
targetColor.r *= vis;
targetColor.g = Mathf.Max(targetColor.g, targetColor.r);
if (targetColor.r > 0f)
{
if (x == tilePosition.x && y == tilePosition.y)
{
targetColor.b = 1.0f;
}
else if (tileType.HasFlag(TileType.Wall))
{
targetColor.b = 0.75f;
}
else if (tileType.HasFlag(TileType.Floor))
{
targetColor.b = 0.5f;
}
}
FoWTexture.SetPixel(pos.x, pos.y, targetColor);
}
}
SetTexture();
}
