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Add Location.Parse

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BruceChen 2022-09-29 22:49:07 +08:00
parent 36d2a2c731
commit e01eab28a2
2 changed files with 92 additions and 6 deletions
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89
MinecraftClient/Mapping/Location.cs
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@ -73,6 +73,95 @@ namespace MinecraftClient.Mapping
Z = chunkZ * Chunk.SizeZ + blockZ;
}
/// <summary>
/// Parse location from the string.
/// return NULL if the parsing fails.
/// </summary>
/// <param name="x">The string representation of the X-axis coordinate.</param>
/// <param name="y">The string representation of the Y-axis coordinate.</param>
/// <param name="z">The string representation of the Z-axis coordinate.</param>
/// <returns>The location represented by the string.</returns>
public static Location Parse(string x, string y, string z)
{
Location.TryParse(x, y, z, out Location? res);
if (res == null)
throw new FormatException();
else
return (Location)res;
}
public static bool TryParse(string x, string y, string z, out Location? location)
{
string[] coord_str = new string[] { x.Trim(), y.Trim(), z.Trim() };
double[] coord_res = new double[3];
for (int i = 0; i < 3; ++i)
{
if (!double.TryParse(coord_str[i], out coord_res[i]))
{
location = null;
return false;
}
}
location = new Location(coord_res[0], coord_res[1], coord_res[2]);
return true;
}
/// <summary>
/// Parse location from the string (relative coordinate representation is supported).
/// return NULL if the parsing fails.
/// </summary>
/// <param name="current">Relative position base point.</param>
/// <param name="x">The string representation of the X-axis coordinate.</param>
/// <param name="y">The string representation of the Y-axis coordinate.</param>
/// <param name="z">The string representation of the Z-axis coordinate.</param>
/// <returns>The location represented by the string.</returns>
public static Location Parse(Location current, string x, string y, string z)
{
Location.TryParse(current, x, y, z, out Location? res);
if (res == null)
throw new FormatException();
else
return (Location)res;
}
public static bool TryParse(Location current, string x, string y, string z, out Location? location)
{
string[] coord_str = new string[] { x.Trim(), y.Trim(), z.Trim() };
double[] coord_res = new double[3];
double[] coord_cur = new double[] { current.X, current.Y, current.Z };
for (int i = 0; i < 3; ++i)
{
if (coord_str[i].StartsWith('~'))
{
if (coord_str[i].Length > 1)
{
if (!double.TryParse(coord_str[i][1..], out coord_res[i]))
{
location = null;
return false;
}
coord_res[i] += coord_cur[i];
}
else
coord_res[i] = coord_cur[i];
}
else
{
if (!double.TryParse(coord_str[i], out coord_res[i]))
{
location = null;
return false;
}
}
}
location = new Location(coord_res[0], coord_res[1], coord_res[2]);
return true;
}
/// <summary>
/// Round coordinates
/// </summary>