public GridRenderer(Grid <T> _grid, Func <T, Color4> _colorSelector, float _tileWidth, float _tileHeight)
{
grid = _grid;
tileWidth = _tileWidth;
tileHeight = _tileHeight;
var rectanglesVertices = new List <IEnumerable <ColoredVertex> >();
for (var i = 0; i < _grid.Width; i++)
{
for (var j = 0; j < _grid.Height; j++)
{
var rectangle = new Rectangle(i * tileWidth, j * tileHeight, tileWidth, tileHeight);
var vertices = rectangle.ToVertices();
var tile = _grid.Get(i, j);
var color = _colorSelector(tile);
var coloredVertices = vertices.Select(v => new ColoredVertex(new Vector3(v.X, v.Y, 0), color));
rectanglesVertices.Add(coloredVertices);
}
}
buffer = new ColoredVertexBuffer(PrimitiveType.Quads);
buffer.AddVertices(rectanglesVertices.SelectMany(x => x));
Initialize(buffer);
}
public override ColoredVertexBuffer GetFillBuffer(Color4 _color)
{
//PrimitiveType.Polygon appears to only work for convex polygons
var buffer = new ColoredVertexBuffer(PrimitiveType.Polygon);
buffer.AddVertices(this.Select(x => new ColoredVertex(x, _color)));
return(buffer);
}