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Implement terrain merging in TerrainChannel.

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Modify archiver to use terrain merging when loading oars.
This makes displacement AND rotation properly work on terrain when loading oars.
Especially useful when loading legacy region oars into large varregions.
This commit is contained in:
Robert Adams
2014-02-02 11:17:49 -08:00
parent a8e64cd59a
commit 9c97fb8e12
6 changed files with 129 additions and 54 deletions
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3
OpenSim/Region/Framework/Interfaces/ITerrainChannel.cs
View File

@@ -26,6 +26,7 @@
*/
using OpenSim.Framework;
using OpenMetaverse;
namespace OpenSim.Region.Framework.Interfaces
{
@@ -56,5 +57,7 @@ namespace OpenSim.Region.Framework.Interfaces
ITerrainChannel MakeCopy();
string SaveToXmlString();
void LoadFromXmlString(string data);
// Merge some terrain into this channel
void Merge(ITerrainChannel newTerrain, Vector3 displacement, float radianRotation, Vector2 rotationDisplacement);
}
}

2
OpenSim/Region/Framework/Interfaces/ITerrainModule.cs
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@@ -51,7 +51,7 @@ namespace OpenSim.Region.Framework.Interfaces
/// </param>
/// <param name="stream"></param>
void LoadFromStream(string filename, Stream stream);
void LoadFromStream(string filename, Vector2 displacement, Stream stream);
void LoadFromStream(string filename, Vector3 displacement, float radianRotation, Vector2 rotationDisplacement, Stream stream);
void LoadFromStream(string filename, System.Uri pathToTerrainHeightmap);
/// <summary>
/// Save a terrain to a stream.

72
OpenSim/Region/Framework/Scenes/TerrainChannel.cs
View File

@@ -36,6 +36,8 @@ using OpenSim.Data;
using OpenSim.Framework;
using OpenSim.Region.Framework.Interfaces;
using OpenMetaverse;
using log4net;
namespace OpenSim.Region.Framework.Scenes
@@ -212,6 +214,76 @@ namespace OpenSim.Region.Framework.Scenes
sr.Close();
}
// ITerrainChannel.Merge
public void Merge(ITerrainChannel newTerrain, Vector3 displacement, float radianRotation, Vector2 rotationDisplacement)
{
for (int xx = 0; xx < newTerrain.Width; xx++)
{
for (int yy = 0; yy < newTerrain.Height; yy++)
{
int dispX = (int)displacement.X;
int dispY = (int)displacement.Y;
float newHeight = (float)newTerrain[xx, yy] + displacement.Z;
if (radianRotation == 0)
{
// If no rotation, place the new height in the specified location
dispX += xx;
dispY += yy;
if (dispX >= 0 && dispX < m_terrainData.SizeX && dispY >= 0 && dispY < m_terrainData.SizeY)
{
m_terrainData[dispX, dispY] = newHeight;
}
}
else
{
// If rotating, we have to smooth the result because the conversion
// to ints will mean heightmap entries will not get changed
// First compute the rotation location for the new height.
dispX += (int)(rotationDisplacement.X
+ ((float)xx - rotationDisplacement.X) * Math.Cos(radianRotation)
- ((float)yy - rotationDisplacement.Y) * Math.Sin(radianRotation) );
dispY += (int)(rotationDisplacement.Y
+ ((float)xx - rotationDisplacement.X) * Math.Sin(radianRotation)
+ ((float)yy - rotationDisplacement.Y) * Math.Cos(radianRotation) );
if (dispX >= 0 && dispX < m_terrainData.SizeX && dispY >= 0 && dispY < m_terrainData.SizeY)
{
float oldHeight = m_terrainData[dispX, dispY];
// Smooth the heights around this location if the old height is far from this one
for (int sxx = dispX - 2; sxx < dispX + 2; sxx++)
{
for (int syy = dispY - 2; syy < dispY + 2; syy++)
{
if (sxx >= 0 && sxx < m_terrainData.SizeX && syy >= 0 && syy < m_terrainData.SizeY)
{
if (sxx == dispX && syy == dispY)
{
// Set height for the exact rotated point
m_terrainData[dispX, dispY] = newHeight;
}
else
{
if (Math.Abs(m_terrainData[sxx, syy] - newHeight) > 1f)
{
// If the adjacent height is far off, force it to this height
m_terrainData[sxx, syy] = newHeight;
}
}
}
}
}
}
if (dispX >= 0 && dispX < m_terrainData.SizeX && dispY >= 0 && dispY < m_terrainData.SizeY)
{
m_terrainData[dispX, dispY] = (float)newTerrain[xx, yy];
}
}
}
}
}
#endregion
public TerrainChannel Copy()