/// <summary>
/// 获取到所属于的块;
/// </summary>
public RectCoord GetChunk(CubicHexCoord coord)
{
short x = (short)Math.Round(coord.X / (float)width);
short y = (short)Math.Round(coord.Y / (float)height);
return(new RectCoord(x, y));
}
CubicHexCoord NorthEastAdge(CubicHexCoord coord)
{
int x = coord.X + width / 2;
int y = coord.Y + height / 2;
return(new CubicHexCoord((short)x, (short)y));
}
CubicHexCoord SouthwestAdge(CubicHexCoord coord)
{
int x = coord.X - width / 2;
int y = coord.Y - height / 2;
return(new CubicHexCoord((short)x, (short)y));
}
/// <summary>
/// 立方体坐标 转换成 像素坐标;
/// </summary>
public Vector3 GetPixel(CubicHexCoord hex, float y = 0)
{
float x = outerRadius * 1.5f * hex.X;
float z = (float)(Trigonometric.Cos30 * hex.X + Trigonometric.Tan60 * hex.Y) * outerRadius;
return(new Vector3(x, y, z));
}
/// <summary>
/// 获取到块内所有的点;
/// </summary>
IEnumerable <RectCoord> ChunkRange(RectCoord chunk)
{
CubicHexCoord center = GetCenter(chunk);
CubicHexCoord southwest = SouthwestAdge(center);
CubicHexCoord northeast = NorthEastAdge(center);
for (var x = southwest.X; x <= northeast.X; x++)
{
for (var y = southwest.Y; y <= northeast.Y; y++)
{
yield return(new RectCoord(x, y));
}
}
}