public DrawInfo(FogOfWarMap map, FogOfWarShape shape, float xradius, float yradius)
{
// convert size to fog space
fogForward = shape.foward;
forwardAngle = FogOfWarUtils.ClockwiseAngle(Vector2.up, fogForward) * Mathf.Deg2Rad;
float sin = Mathf.Sin(-forwardAngle);
float cos = Mathf.Cos(-forwardAngle);
Vector2 relativeoffset = new Vector2(shape.offset.x * cos - shape.offset.y * sin, shape.offset.x * sin + shape.offset.y * cos);
fogCenterPos = FogOfWarConversion.WorldToFog(FogOfWarConversion.WorldToFogPlane(shape.eyePosition, map.plane) + relativeoffset, map.offset, map.resolution, map.size);
fogEyePos = new Vector2i(FogOfWarConversion.WorldToFog(shape.eyePosition, map.plane, map.offset, map.resolution, map.size));
// find ranges
if (shape.visibleCells == null)
{
xMin = Mathf.Max(0, Mathf.RoundToInt(fogCenterPos.x - xradius));
xMax = Mathf.Min(map.resolution.x - 1, Mathf.RoundToInt(fogCenterPos.x + xradius));
yMin = Mathf.Max(0, Mathf.RoundToInt(fogCenterPos.y - yradius));
yMax = Mathf.Min(map.resolution.y - 1, Mathf.RoundToInt(fogCenterPos.y + yradius));
}
else
{
fogCenterPos = FogOfWarConversion.SnapToNearestFogPixel(fogCenterPos);
fogEyePos = new Vector2i(FogOfWarConversion.SnapToNearestFogPixel(FogOfWarConversion.WorldToFog(shape.eyePosition, map.offset, map.resolution, map.size)));
Vector2i pos = new Vector2i(Mathf.RoundToInt(fogCenterPos.x), Mathf.RoundToInt(fogCenterPos.y));
Vector2i rad = new Vector2i(Mathf.RoundToInt(xradius), Mathf.RoundToInt(yradius));
xMin = Mathf.Max(0, Mathf.RoundToInt(pos.x - rad.x));
xMax = Mathf.Min(map.resolution.x - 1, Mathf.RoundToInt(pos.x + rad.x));
yMin = Mathf.Max(0, Mathf.RoundToInt(pos.y - rad.y));
yMax = Mathf.Min(map.resolution.y - 1, Mathf.RoundToInt(pos.y + rad.y));
}
}
public void Unfog(Bounds bounds)
{
Rect rect = new Rect();
rect.min = FogOfWarConversion.WorldToFog(bounds.min, plane, mapOffset, mapResolution, mapSize);
rect.max = FogOfWarConversion.WorldToFog(bounds.max, plane, mapOffset, mapResolution, mapSize);
Unfog(rect);
}
//void OnDrawGizmosSelected()
void OnDrawGizmos()
{
Gizmos.color = Color.red;
Vector3 offset = FogOfWarConversion.FogPlaneToWorld(mapOffset.x, mapOffset.y, 0, plane);
Vector3 size = FogOfWarConversion.FogPlaneToWorld(mapSize, mapSize, 0, plane);
Gizmos.DrawWireCube(offset, size);
Gizmos.color = new Color(1, 0, 0, 0.2f);
Gizmos.DrawCube(offset, size);
}
public Vector2i WorldPositionToFogPosition(Vector3 position)
{
Vector2 mappos = FogOfWarConversion.WorldToFogPlane(position, plane) - mapOffset;
mappos.Scale(mapResolution.vector2 / mapSize);
Vector2i mapposi = new Vector2i(mappos);
mapposi += new Vector2i(mapResolution.x >> 1, mapResolution.y >> 1);
return(mapposi);
}
public bool[] CalculateLineOfSightCells(FogOfWar fow, FogOfWarPhysics physicsmode, Vector3 eyepos)
{
if (physicsmode == FogOfWarPhysics.Physics3D)
{
Debug.LogWarning("Physics3D is not supported with cells!", this);
return(null);
}
int rad = Mathf.RoundToInt(radius);
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);
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;
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 > radius)
{
_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(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.foward = FogOfWarConversion.TransformFogPlaneForward(_transform, fow.plane);
shape.offset = offset;
shape.radius = radius;
}
// Checks the visibility of an area, where a value of 0 is fully unfogged and 1 if fully fogged
public float VisibilityOfArea(Bounds worldbounds)
{
Vector2 min = FogOfWarConversion.WorldToFog(worldbounds.min, plane, mapOffset, mapResolution, mapSize);
Vector2 max = FogOfWarConversion.WorldToFog(worldbounds.max, plane, mapOffset, mapResolution, mapSize);
int xmin = Mathf.Clamp(Mathf.RoundToInt(min.x), 0, mapResolution.x);
int xmax = Mathf.Clamp(Mathf.RoundToInt(max.x), 0, mapResolution.x);
int ymin = Mathf.Clamp(Mathf.RoundToInt(min.y), 0, mapResolution.y);
int ymax = Mathf.Clamp(Mathf.RoundToInt(max.y), 0, mapResolution.y);
float total = 0;
int count = 0;
for (int y = ymin; y < ymax; ++y)
{
for (int x = xmin; x < xmax; ++x)
{
++count;
total += _fogValuesCopy[y * mapResolution.x + x] / 255.0f;
}
}
return(total / count);
}
