public bool[] CalculateLineOfSightCells(FogOfWar fow, FogOfWarPhysics physicsmode, Vector3 eyepos, float distance)
{
if (physicsmode == FogOfWarPhysics.Physics3D)
{
Debug.LogWarning("Physics3D is not supported with cells!", this);
return(null);
}
int rad = Mathf.RoundToInt(distance);
int width = rad + rad + 1;
if (_visibleCells == null || _visibleCells.Length != width * width)
{
_visibleCells = new bool[width * width];
}
Vector2 cellsize = (fow.mapResolution.vector2 * 1.1f) / fow.mapSize; // do 1.1 to bring it away from the collider a bit so the raycast won't hit it
Vector2 playerpos = FogOfWarConversion.SnapWorldPositionToNearestFogPixel(fow, _transform.position, fow.mapOffset, fow.mapResolution, fow.mapSize);
//playerpos.y += 5;
for (int y = -rad; y <= rad; ++y)
{
for (int x = -rad; x <= rad; ++x)
{
Vector2i offset = new Vector2i(x, y);
// find the nearest point in the cell to the player and raycast to that point
Vector2 fogoffset = offset.vector2 - new Vector2(Sign(offset.x) * cellsize.x, Sign(offset.y) * cellsize.y) * 0.5f;
//fogoffset.y -= 5;
Vector2 worldoffset = FogOfWarConversion.FogToWorldSize(fogoffset, fow.mapResolution, fow.mapSize);
Vector2 worldpos = playerpos + worldoffset;
Debug.DrawLine(playerpos, worldpos);
int idx = (y + rad) * width + x + rad;
// if it is out of range
if (worldoffset.magnitude > distance)
{
_visibleCells[idx] = false;
}
else
{
_visibleCells[idx] = true;
RaycastHit2D hit = Physics2D.Raycast(playerpos, worldoffset.normalized, Mathf.Max(worldoffset.magnitude - lineOfSightPenetration, 0.00001f), lineOfSightMask);
_visibleCells[idx] = hit.collider == null;
}
}
}
return(_visibleCells);
}
void FillShape(FogOfWarShape shape)
{
if (antiFlicker)
{
// snap to nearest fog pixel
shape.eyePosition = FogOfWarConversion.SnapWorldPositionToNearestFogPixel(FogOfWarConversion.WorldToFogPlane(_transform.position, FogOfWar.current.plane), FogOfWar.current.mapOffset, FogOfWar.current.mapResolution, FogOfWar.current.mapSize);
shape.eyePosition = FogOfWarConversion.FogPlaneToWorld(shape.eyePosition.x, shape.eyePosition.y, _transform.position.y, FogOfWar.current.plane);
}
else
{
shape.eyePosition = _transform.position;
}
shape.foward = _transform.forward;
shape.offset = offset;
shape.radius = radius;
}
void FillShape(FogOfWar fow, FogOfWarShape shape)
{
if (antiFlicker)
{
// snap to nearest fog pixel
shape.eyePosition = FogOfWarConversion.SnapWorldPositionToNearestFogPixel(fow, FogOfWarConversion.WorldToFogPlane(_transform.position, fow.plane), fow.mapOffset, fow.mapResolution, fow.mapSize);
shape.eyePosition = FogOfWarConversion.FogPlaneToWorld(shape.eyePosition.x, shape.eyePosition.y, _transform.position.y, fow.plane);
}
else
{
shape.eyePosition = _transform.position;
}
shape.brightness = brightness;
shape.foward = FogOfWarConversion.TransformFogPlaneForward(_transform, fow.plane);
shape.absoluteOffset = absoluteOffset;
shape.offset = offset;
shape.radius = circleRadius;
shape.size = boxSize;
}