/// <summary>
/// Given a set of world coordinates, returns an array of cells. Evolves and adds chunks as necessary.
/// </summary>
private int[,] GetView(ViewPort viewPort)
{
// Determine which chunks are (partially or completely) within the bounding box of the view
var lower = ConvertCellWorldCoordinateToChunkCoordinate(viewPort.XMin, viewPort.YMin);
var upper = ConvertCellWorldCoordinateToChunkCoordinate(viewPort.XMax, viewPort.YMax);
// If chunks overlapped by view are not 'inside', they are going to get evolved
var evolveList = new List <Chunk>();
for (var posX = lower.X; posX <= upper.X; posX++)
{
for (var posY = lower.Y; posY <= upper.Y; posY++)
{
// Get chunk, if it does not exist: create it
var key = GetChunkKey(posX, posY);
Chunk chunk;
if (!Chunks.TryGetValue(key, out chunk))
{
chunk = new Chunk(this, ChunkSizeX, ChunkSizeY, Generations, Threshold, posX, posY, RockPercentage);
Chunks[key] = chunk;
}
if (chunk.Type == Chunk.ChunkType.Edge)
{
chunk.Type = Chunk.ChunkType.Inside;
evolveList.Add(chunk);
// Get the neighboring chunks
var added = AddAdjacentChunks(posX, posY);
evolveList.AddRange(added);
}
}
}
// Clean up list (remove duplicates)
evolveList = evolveList.Distinct().ToList();
if (evolveList.Count > 0)
{
Trace.WriteLine($"EvolveList.Count: {evolveList.Count}");
}
RunEvolution(evolveList);
// Mark 'inside' chunks as final
foreach (var chunk in Chunks.Values)
{
if (chunk.Type == Chunk.ChunkType.Inside && !chunk.IsFinal)
{
chunk.MarkAsFinal();
}
}
// Determine size of view, create array
var viewSizeX = viewPort.XMax - viewPort.XMin + 1;
var viewSizeY = viewPort.YMax - viewPort.YMin + 1;
var view = new int[viewSizeX, viewSizeY];
// Copy cells from chunks into array
for (var x = viewPort.XMin; x <= viewPort.XMax; x++)
{
for (var y = viewPort.YMin; y <= viewPort.YMax; y++)
{
view[x - viewPort.XMin, y - viewPort.YMin] = GetFinalCell(x, y);
}
}
return(view);
}
static void Main(string[] args)
{
ConsoleKeyInfo key;
var location = new Point(0, 0);
var world = new World();
var drawGrid = false;
do
{
Console.Clear();
int xMin = location.X - 0,
xMax = location.X + world.ChunkSizeX - 1,
yMin = location.Y - 0,
yMax = location.Y + world.ChunkSizeY - 1;
var viewPort = new ViewPort(xMin, yMin, xMax, yMax);
var view = world.GetView(viewPort);
for (var x = 0; x < (1 + xMax - xMin); x++)
{
for (var y = 0; y < (1 + yMax - yMin); y++)
{
var cell = view[y, x];
var color = Console.ForegroundColor;
Console.ForegroundColor = cell == 1
? ConsoleColor.DarkBlue
: ConsoleColor.White;
Console.Write("█");
Console.ForegroundColor = color;
}
Console.WriteLine();
}
world.DrawImage(viewPort, drawGrid);
Console.WriteLine("Number of chunks: " + world.Chunks.Keys.Count);
Console.WriteLine($"Location: ({location.X}, {location.Y})");
Console.WriteLine("R: reset\tG: grid on/off\tQ: quit");
key = Console.ReadKey();
if (key.Key == ConsoleKey.LeftArrow)
{
location.X = location.X - world.MovementFactor;
}
if (key.Key == ConsoleKey.RightArrow)
{
location.X = location.X + world.MovementFactor;
}
if (key.Key == ConsoleKey.UpArrow)
{
location.Y = location.Y - world.MovementFactor;
}
if (key.Key == ConsoleKey.DownArrow)
{
location.Y = location.Y + world.MovementFactor;
}
if (key.Key == ConsoleKey.R)
{
world = new World();
}
if (key.Key == ConsoleKey.G)
{
drawGrid = !drawGrid;
}
} while (key.Key != ConsoleKey.Q);
}
/// <summary>
/// Given a viewport, creates an image of the world and saves it to disc.
/// </summary>
public Image DrawImage(ViewPort viewPort,
bool drawEdges = true,
bool drawGrid = false,
bool drawView = true,
bool drawEdgesAsNoise = false,
bool drawFinalAsNoise = false,
bool colorizeInsideChunks = true)
{
var chunks = Chunks.Values.ToList();
if (!drawEdges)
{
chunks = chunks.Where(x => x.Type != Chunk.ChunkType.Edge).ToList();
}
// Determine image size.
var xMin = chunks.Min(x => x.PosX);
var xMax = chunks.Max(x => x.PosX);
var xDim = (1 + xMax - xMin) * ChunkSizeX * CellSize;
var yMin = chunks.Min(x => x.PosY);
var yMax = chunks.Max(x => x.PosY);
var yDim = (1 + yMax - yMin) * ChunkSizeX * CellSize;
var image = new Bitmap(xDim, yDim);
using (var g = Graphics.FromImage(image))
{
foreach (var chunk in chunks)
{
var chunkXRelative = chunk.PosX - xMin;
var xTopLeft = chunkXRelative * ChunkSizeX * CellSize;
var chunkYRelative = chunk.PosY - yMin;
var yTopLeft = chunkYRelative * ChunkSizeY * CellSize;
var solidColor = Brushes.DarkGray;
var openColor = Brushes.DimGray;
for (var x = 0; x < chunk.SizeX; x++)
{
for (var y = 0; y < chunk.SizeY; y++)
{
Brush brush;
int block;
if (chunk.IsFinal)
{
block = drawFinalAsNoise
? chunk.Noise[x, y]
: chunk.Final[x, y];
brush = block == 1
? (colorizeInsideChunks ? Brushes.ForestGreen : solidColor)
: (colorizeInsideChunks ? Brushes.SaddleBrown : openColor);
}
else
{
block = drawEdgesAsNoise
? chunk.Noise[x, y]
: chunk.Cells[x, y];
brush = block == 1
? solidColor
: openColor;
}
g.FillRectangle(brush, xTopLeft + x * CellSize, yTopLeft + y * CellSize, CellSize, CellSize);
}
}
}
if (drawGrid)
{
foreach (var chunk in chunks.OrderBy(x => x.Type))
{
var chunkXRelative = chunk.PosX - xMin;
var xTopLeft = chunkXRelative * ChunkSizeX * CellSize;
var chunkYRelative = chunk.PosY - yMin;
var yTopLeft = chunkYRelative * ChunkSizeY * CellSize;
var color = chunk.Type == Chunk.ChunkType.Edge
? Color.Red
: Color.Yellow;
var pen = new Pen(color, 1.5f);
g.DrawRectangle(pen, xTopLeft, yTopLeft, ChunkSizeX * CellSize - 1, ChunkSizeY * CellSize - 1);
}
}
// Draw viewport.
if (drawView)
{
// Calculate viewport
// Determine which chunks are (partially or completely) within the bounding box of the view
var xTranslation = Math.Abs(Math.Min(0, xMin) * ChunkSizeX * CellSize);
var yTranslation = Math.Abs(Math.Min(0, yMin) * ChunkSizeY * CellSize);
Console.WriteLine($"viewport: {viewPort}");
viewPort.Grow(CellSize, CellSize);
Console.WriteLine($"viewport-grown: {viewPort}");
viewPort.Translate(xTranslation, yTranslation);
Console.WriteLine($"viewport-translated: {viewPort}");
var rect = viewPort.GetRectangle();
g.DrawRectangle(new Pen(Color.Fuchsia, 2 * CellSize), rect);
}
}
return(image);
}