/// public initialization
/**
* Handles the work of constructors so that public constructors can be
* backwards-compatible without a lot of copy/paste.
*/
public void Initialize(int heightStickWidth, int heightStickLength,
Object heightfieldData, float heightScale,
float minHeight, float maxHeight, int upAxis,
PHY_ScalarType hdt, bool flipQuadEdges)
{
// validation
Debug.Assert(heightStickWidth > 1, "bad width");
Debug.Assert(heightStickLength > 1, "bad length");
Debug.Assert(heightfieldData != null, "null heightfield data");
// Debug.Assert(heightScale) -- do we care? Trust caller here
Debug.Assert(minHeight <= maxHeight, "bad min/max height");
Debug.Assert(upAxis >= 0 && upAxis < 3,
"bad upAxis--should be in range [0,2]");
Debug.Assert(hdt != PHY_ScalarType.PHY_UCHAR || hdt != PHY_ScalarType.PHY_FLOAT || hdt != PHY_ScalarType.PHY_SHORT,
"Bad height data type enum");
// initialize member variables
m_shapeType = BroadphaseNativeTypes.TERRAIN_SHAPE_PROXYTYPE;
m_heightStickWidth = heightStickWidth;
m_heightStickLength = heightStickLength;
m_minHeight = minHeight;
m_maxHeight = maxHeight;
m_width = (heightStickWidth - 1);
m_length = (heightStickLength - 1);
m_heightScale = heightScale;
// copy the data in
m_heightFieldDataByte = heightfieldData as byte[];
m_heightFieldDataFloat = heightfieldData as float[];
m_heightDataType = hdt;
m_flipQuadEdges = flipQuadEdges;
m_useDiamondSubdivision = false;
m_upAxis = upAxis;
m_localScaling = new IndexedVector3(1f);
// determine min/max axis-aligned bounding box (aabb) values
switch (m_upAxis)
{
case 0:
{
m_localAabbMin = new IndexedVector3(m_minHeight, 0, 0);
m_localAabbMax = new IndexedVector3(m_maxHeight, m_width, m_length);
break;
}
case 1:
{
m_localAabbMin = new IndexedVector3(0, m_minHeight, 0);
m_localAabbMax = new IndexedVector3(m_width, m_maxHeight, m_length);
break;
};
case 2:
{
m_localAabbMin = new IndexedVector3(0, 0, m_minHeight);
m_localAabbMax = new IndexedVector3(m_width, m_length, m_maxHeight);
break;
}
default:
{
//need to get valid m_upAxis
Debug.Assert(false, "Bad m_upAxis");
break;
}
}
// remember origin (defined as exact middle of aabb)
m_localOrigin = 0.5f * (m_localAabbMin + m_localAabbMax);
}