public ViewSettings(Vector2i viewDistance)
{
ViewDistance = new Vector3i(viewDistance.X, viewDistance.Y, viewDistance.X);
ViewDistanceCache = new Vector3i(viewDistance.X + 1, viewDistance.Y + 1, viewDistance.X + 1);
Location = new Vector3i();
PreviousLocation = new Vector3i(int.MinValue, int.MinValue, int.MinValue);
}
public static double Distance(Vector3i a, Vector3i b)
{
a.X = b.X - a.X;
a.Y = b.Y - a.Y;
a.Z = b.Z - a.Z;
return Math.Sqrt(a.X * a.X + a.Y * a.Y + a.Z * a.Z);
}
private void UpdateAreaBoundaries()
{
bool updatedBoundaries = false;
// Locate the outer boundaries (locations) of all neighbor areas so that we can skip rendering faces which faces out of the furthest areas (cannot be seen anyway)
AreaLocationMin = new Vector3i(int.MaxValue);
AreaLocationMax = new Vector3i(int.MinValue);
// Loop through all sides of the current area
for (int i = 0; i < 6; i++)
{
if (AreaNeighbors[i] != null)
{
updatedBoundaries = true;
// X axis
if (AreaNeighbors[i].Info.Location.X < AreaLocationMin.X)
{
AreaLocationMin.X = AreaNeighbors[i].Info.Location.X;
}
if (AreaNeighbors[i].Info.Location.X > AreaLocationMax.X)
{
AreaLocationMax.X = AreaNeighbors[i].Info.Location.X;
}
// Y axis
if (AreaNeighbors[i].Info.Location.Y < AreaLocationMin.Y)
{
AreaLocationMin.Y = AreaNeighbors[i].Info.Location.Y;
}
if (AreaNeighbors[i].Info.Location.Y > AreaLocationMax.Y)
{
AreaLocationMax.Y = AreaNeighbors[i].Info.Location.Y;
}
// Z axis
if (AreaNeighbors[i].Info.Location.Z < AreaLocationMin.Z)
{
AreaLocationMin.Z = AreaNeighbors[i].Info.Location.Z;
}
if (AreaNeighbors[i].Info.Location.Z > AreaLocationMax.Z)
{
AreaLocationMax.Z = AreaNeighbors[i].Info.Location.Z;
}
}
}
// No neighbors found, so use default boundaries
if (!updatedBoundaries)
{
AreaLocationMin = area.Info.Location;
AreaLocationMax = area.Info.Location;
}
}
public static void GetAreaRangeWithinViewDistance(Vector3i location, Vector3i viewDistance, ref AreaRange range)
{
range.Min.X = location.X - viewDistance.X;
range.Max.X = location.X + viewDistance.X;
range.Min.Y = location.Y - viewDistance.Y;
range.Max.Y = location.Y + viewDistance.Y;
range.Min.Z = location.Z - viewDistance.Z;
range.Max.Z = location.Z + viewDistance.Z;
}
private void UpdateAreaNeighbors(List<Area> neighbors)
{
// Clear any current areas
for (int i = 0; i < 6; i++)
{
AreaNeighbors[i] = null;
}
if (neighbors != null && neighbors.Count > 0)
{
var sides = new Vector3i[6];
sides[(int)TileSide.Top] = new Vector3i(area.Info.Location.X, area.Info.Location.Y + 1, area.Info.Location.Z);
sides[(int)TileSide.Bottom] = new Vector3i(area.Info.Location.X, area.Info.Location.Y - 1, area.Info.Location.Z);
sides[(int)TileSide.Left] = new Vector3i(area.Info.Location.X - 1, area.Info.Location.Y, area.Info.Location.Z);
sides[(int)TileSide.Right] = new Vector3i(area.Info.Location.X + 1, area.Info.Location.Y, area.Info.Location.Z);
sides[(int)TileSide.Front] = new Vector3i(area.Info.Location.X, area.Info.Location.Y, area.Info.Location.Z + 1);
sides[(int)TileSide.Back] = new Vector3i(area.Info.Location.X, area.Info.Location.Y, area.Info.Location.Z - 1);
for (int i = 0; i < neighbors.Count; i++)
{
for (int j = 0; j < 6; j++)
{
if (neighbors[i].Info.Location.Equals(sides[j]))
{
AreaNeighbors[j] = neighbors[i];
break;
}
}
}
}
}
public void RemoveExpiredAreas(Vector3i location, Vector3i viewDistance)
{
lock (areaCollection.CollectionLock)
{
var expiredAreas = new List<Area>();
Area area;
// Loop through all areas to find expired ones
for (int i = 0; i < areaCollection.Areas.Count; i++)
{
area = areaCollection.Areas[i];
if (area.Info.Location.X >= location.X)
{
if (area.Info.Location.X - location.X > viewDistance.X + 2)
{
expiredAreas.Add(area);
}
}
else
{
if (location.X - area.Info.Location.X > viewDistance.X + 2)
{
expiredAreas.Add(area);
}
}
if (area.Info.Location.Y >= location.Y)
{
if (area.Info.Location.Y - location.Y > viewDistance.Y + 2)
{
expiredAreas.Add(area);
}
}
else
{
if (location.Y - area.Info.Location.Y > viewDistance.Y + 2)
{
expiredAreas.Add(area);
}
}
if (area.Info.Location.Z >= location.Z)
{
if (area.Info.Location.Z - location.Z > viewDistance.Z + 2)
{
expiredAreas.Add(area);
}
}
else
{
if (location.Z - area.Info.Location.Z > viewDistance.Z + 2)
{
expiredAreas.Add(area);
}
}
}
// Remove all expired areas
RemoveRange(expiredAreas);
}
}
public Area GetAreaAt(Vector3i location)
{
return GetAreaAt(location.X, location.Y, location.Z);
}
public Vector3 FindSuitableSpawnPoint(BoundingBox bounds)
{
var currentBestPosition = new Vector3();
// Find the area location of the current bounding box coordinates
var startingArea = new Vector3i();
AreaHelper.FindAreaLocation(boundingBoxHelper.GetCenter(bounds), ref startingArea);
// Check the current area for a suitable spawnpoint
var area = terrainContext.Generator.Generate(startingArea.X, startingArea.Y, startingArea.Z);
if (CanSpawnInArea(area, bounds))
{
// If we are at the bottom of an area, then theres a chance that the area below us is also empty and might cause us to start falling.
// If so, we try to scan further for a suitable position, otherwise we return right here since we can assume that we are standing on solid ground.
if (!info.IsAtBottomOfArea)
{
return info.Position;
}
else
{
currentBestPosition = info.Position;
}
}
bool skipAbove = currentBestPosition != Vector3.Zero;
// Perform a scan of 50 areas above and below the starting area for a suitable spawnpoint
for (int y = 1; y < 50; y++)
{
if (!skipAbove)
{
var areaAbove = terrainContext.Generator.Generate(startingArea.X, startingArea.Y + y, startingArea.Z);
if (CanSpawnInArea(areaAbove, bounds))
{
// If we are at the bottom of an area, then theres a chance that the area below us is also empty and might cause us to start falling.
// If so, we try to scan further for a suitable position, otherwise we return right here since we can assume that we are standing on solid ground.
if (!info.IsAtBottomOfArea)
{
return info.Position;
}
currentBestPosition = info.Position;
}
}
var areaBelow = terrainContext.Generator.Generate(startingArea.X, startingArea.Y - y, startingArea.Z);
if (CanSpawnInArea(areaBelow, bounds))
{
// If we are at the bottom of an area, then theres a chance that the area below us is also empty and might cause us to start falling.
// If so, we try to scan further for a suitable position, otherwise we return right here since we can assume that we are standing on solid ground.
if (!info.IsAtBottomOfArea)
{
return info.Position;
}
currentBestPosition = info.Position;
}
}
return currentBestPosition;
}
/// <summary>
/// Takes a world position and finds the matching area location for it
/// </summary>
/// <param name="position">The world position</param>
/// <param name="result">The result area location</param>
public static void FindAreaLocation(Vector3 position, ref Vector3i result)
{
result.X = (int)Math.Ceiling(position.X / (Area.Size.X * Tile.Size.X)) - 1;
result.Y = (int)Math.Ceiling(position.Y / (Area.Size.Y * Tile.Size.Y)) - 1;
result.Z = (int)Math.Ceiling(position.Z / (Area.Size.Z * Tile.Size.Z)) - 1;
}
private TileType GetSurfaceTileType(Vector3i location, int tileX, int tileY, int tileZ)
{
byte tileType = noiseManager.AreaResources.Generators[NoiseAreaResourceType.Grainy].GenerateSinglePoint(
tileX + (location.X * Area.Size.X),
tileY + (location.Y * Area.Size.Y),
tileZ + (location.Z * Area.Size.Z));
if (tileType > 127)
{
return TileType.Stone;
}
else
{
return TileType.Stone2;
}
}
private TileType GetSurfaceTileType(Vector3i location, int tileX, int tileY, int tileZ)
{
return TileType.Stone;
}
public AreaRange()
{
Min = new Vector3i();
Max = new Vector3i();
}