// TODO: redo terrain implementation selection to allow other base types than heightMap.
private BSTerrainPhys BuildPhysicalTerrain(Vector3 terrainRegionBase, uint id, float[] heightMap, Vector3 minCoords, Vector3 maxCoords)
{
m_physicsScene.Logger.DebugFormat("{0} Terrain for {1}/{2} created with {3}",
LogHeader, m_physicsScene.RegionName, terrainRegionBase,
(BSTerrainPhys.TerrainImplementation)BSParam.TerrainImplementation);
BSTerrainPhys newTerrainPhys = null;
switch ((int)BSParam.TerrainImplementation)
{
case (int)BSTerrainPhys.TerrainImplementation.Heightmap:
newTerrainPhys = new BSTerrainHeightmap(m_physicsScene, terrainRegionBase, id,
heightMap, minCoords, maxCoords);
break;
case (int)BSTerrainPhys.TerrainImplementation.Mesh:
newTerrainPhys = new BSTerrainMesh(m_physicsScene, terrainRegionBase, id,
heightMap, minCoords, maxCoords);
break;
default:
m_physicsScene.Logger.ErrorFormat("{0} Bad terrain implementation specified. Type={1}/{2},Region={3}/{4}",
LogHeader,
(int)BSParam.TerrainImplementation,
BSParam.TerrainImplementation,
m_physicsScene.RegionName, terrainRegionBase);
break;
}
return(newTerrainPhys);
}
// Create terrain mesh from a heightmap.
public BSTerrainMesh(BSScene physicsScene, Vector3 regionBase, uint id, float[] initialMap,
Vector3 minCoords, Vector3 maxCoords)
: base(physicsScene, regionBase, id)
{
int indicesCount;
int[] indices;
int verticesCount;
float[] vertices;
m_savedHeightMap = initialMap;
m_sizeX = (int)(maxCoords.X - minCoords.X);
m_sizeY = (int)(maxCoords.Y - minCoords.Y);
bool meshCreationSuccess = false;
if (BSParam.TerrainMeshMagnification == 1)
{
// If a magnification of one, use the old routine that is tried and true.
meshCreationSuccess = BSTerrainMesh.ConvertHeightmapToMesh(m_physicsScene,
initialMap, m_sizeX, m_sizeY, // input size
Vector3.Zero, // base for mesh
out indicesCount, out indices, out verticesCount, out vertices);
}
else
{
// Other magnifications use the newer routine
meshCreationSuccess = BSTerrainMesh.ConvertHeightmapToMesh2(m_physicsScene,
initialMap, m_sizeX, m_sizeY, // input size
BSParam.TerrainMeshMagnification,
physicsScene.TerrainManager.DefaultRegionSize,
Vector3.Zero, // base for mesh
out indicesCount, out indices, out verticesCount, out vertices);
}
if (!meshCreationSuccess)
{
// DISASTER!!
m_physicsScene.DetailLog("{0},BSTerrainMesh.create,failedConversionOfHeightmap,id={1}", BSScene.DetailLogZero, ID);
m_physicsScene.Logger.ErrorFormat("{0} Failed conversion of heightmap to mesh! base={1}", LogHeader, TerrainBase);
// Something is very messed up and a crash is in our future.
return;
}
m_physicsScene.DetailLog("{0},BSTerrainMesh.create,meshed,id={1},indices={2},indSz={3},vertices={4},vertSz={5}",
BSScene.DetailLogZero, ID, indicesCount, indices.Length, verticesCount, vertices.Length);
m_terrainShape = m_physicsScene.PE.CreateMeshShape(m_physicsScene.World, indicesCount, indices, verticesCount, vertices);
if (!m_terrainShape.HasPhysicalShape)
{
// DISASTER!!
m_physicsScene.DetailLog("{0},BSTerrainMesh.create,failedCreationOfShape,id={1}", BSScene.DetailLogZero, ID);
m_physicsScene.Logger.ErrorFormat("{0} Failed creation of terrain mesh! base={1}", LogHeader, TerrainBase);
// Something is very messed up and a crash is in our future.
return;
}
Vector3 pos = regionBase;
Quaternion rot = Quaternion.Identity;
m_terrainBody = m_physicsScene.PE.CreateBodyWithDefaultMotionState(m_terrainShape, ID, pos, rot);
if (!m_terrainBody.HasPhysicalBody)
{
// DISASTER!!
m_physicsScene.Logger.ErrorFormat("{0} Failed creation of terrain body! base={1}", LogHeader, TerrainBase);
// Something is very messed up and a crash is in our future.
return;
}
physicsScene.PE.SetShapeCollisionMargin(m_terrainShape, BSParam.TerrainCollisionMargin);
// Set current terrain attributes
m_physicsScene.PE.SetFriction(m_terrainBody, BSParam.TerrainFriction);
m_physicsScene.PE.SetHitFraction(m_terrainBody, BSParam.TerrainHitFraction);
m_physicsScene.PE.SetRestitution(m_terrainBody, BSParam.TerrainRestitution);
m_physicsScene.PE.SetContactProcessingThreshold(m_terrainBody, BSParam.TerrainContactProcessingThreshold);
m_physicsScene.PE.SetCollisionFlags(m_terrainBody, CollisionFlags.CF_STATIC_OBJECT);
// Static objects are not very massive.
m_physicsScene.PE.SetMassProps(m_terrainBody, 0f, Vector3.Zero);
// Put the new terrain to the world of physical objects
m_physicsScene.PE.AddObjectToWorld(m_physicsScene.World, m_terrainBody);
// Redo its bounding box now that it is in the world
m_physicsScene.PE.UpdateSingleAabb(m_physicsScene.World, m_terrainBody);
m_terrainBody.collisionType = CollisionType.Terrain;
m_terrainBody.ApplyCollisionMask(m_physicsScene);
if (BSParam.UseSingleSidedMeshes)
{
m_physicsScene.DetailLog("{0},BSTerrainMesh.settingCustomMaterial,id={1}", BSScene.DetailLogZero, id);
m_physicsScene.PE.AddToCollisionFlags(m_terrainBody, CollisionFlags.CF_CUSTOM_MATERIAL_CALLBACK);
}
// Make it so the terrain will not move or be considered for movement.
m_physicsScene.PE.ForceActivationState(m_terrainBody, ActivationState.DISABLE_SIMULATION);
}