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Differential D1739 Diff 5899 extern/bullet2/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.cpp

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extern/bullet2/src/BulletCollision/CollisionShapes/btHeightfieldTerrainShape.cpp

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void btHeightfieldTerrainShape::initialize void btHeightfieldTerrainShape::initialize
( (
int heightStickWidth, int heightStickLength, const void* heightfieldData, int heightStickWidth, int heightStickLength, const void* heightfieldData,
btScalar heightScale, btScalar minHeight, btScalar maxHeight, int upAxis, btScalar heightScale, btScalar minHeight, btScalar maxHeight, int upAxis,
PHY_ScalarType hdt, bool flipQuadEdges PHY_ScalarType hdt, bool flipQuadEdges
) )
{ {
// validation // validation
btAssert(heightStickWidth > 1 && "bad width"); btAssert(heightStickWidth > 1);// && "bad width");
btAssert(heightStickLength > 1 && "bad length"); btAssert(heightStickLength > 1);// && "bad length");
btAssert(heightfieldData && "null heightfield data"); btAssert(heightfieldData);// && "null heightfield data");
// btAssert(heightScale) -- do we care? Trust caller here // btAssert(heightScale) -- do we care? Trust caller here
btAssert(minHeight <= maxHeight && "bad min/max height"); btAssert(minHeight <= maxHeight);// && "bad min/max height");
btAssert(upAxis >= 0 && upAxis < 3 && btAssert(upAxis >= 0 && upAxis < 3);// && "bad upAxis--should be in range [0,2]");
"bad upAxis--should be in range [0,2]"); btAssert(hdt != PHY_UCHAR || hdt != PHY_FLOAT || hdt != PHY_SHORT);// && "Bad height data type enum");
btAssert(hdt != PHY_UCHAR || hdt != PHY_FLOAT || hdt != PHY_SHORT &&
"Bad height data type enum");
// initialize member variables // initialize member variables
m_shapeType = TERRAIN_SHAPE_PROXYTYPE; m_shapeType = TERRAIN_SHAPE_PROXYTYPE;
m_heightStickWidth = heightStickWidth; m_heightStickWidth = heightStickWidth;
m_heightStickLength = heightStickLength; m_heightStickLength = heightStickLength;
m_minHeight = minHeight; m_minHeight = minHeight;
m_maxHeight = maxHeight; m_maxHeight = maxHeight;
m_width = (btScalar) (heightStickWidth - 1); m_width = (btScalar) (heightStickWidth - 1);
Show All 26 Lines case 2:
{ {
m_localAabbMin.setValue(0, 0, m_minHeight); m_localAabbMin.setValue(0, 0, m_minHeight);
m_localAabbMax.setValue(m_width, m_length, m_maxHeight); m_localAabbMax.setValue(m_width, m_length, m_maxHeight);
break; break;
} }
default: default:
{ {
//need to get valid m_upAxis //need to get valid m_upAxis
btAssert(0 && "Bad m_upAxis"); btAssert(0);// && "Bad m_upAxis");
} }
} }
// remember origin (defined as exact middle of aabb) // remember origin (defined as exact middle of aabb)
m_localOrigin = btScalar(0.5) * (m_localAabbMin + m_localAabbMax); m_localOrigin = btScalar(0.5) * (m_localAabbMin + m_localAabbMax);
} }
▲ Show 20 Lines • Show All 238 Lines • ▼ Show 20 Linesvoid btHeightfieldTerrainShape::processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const
{ {
for(int x=startX; x<endX; x++) for(int x=startX; x<endX; x++)
{ {
btVector3 vertices[3]; btVector3 vertices[3];
if (m_flipQuadEdges || (m_useDiamondSubdivision && !((j+x) & 1))|| (m_useZigzagSubdivision && !(j & 1))) if (m_flipQuadEdges || (m_useDiamondSubdivision && !((j+x) & 1))|| (m_useZigzagSubdivision && !(j & 1)))
{ {
//first triangle //first triangle
getVertex(x,j,vertices[0]); getVertex(x,j,vertices[0]);
getVertex(x+1,j,vertices[1]); getVertex(x, j + 1, vertices[1]);
getVertex(x+1,j+1,vertices[2]); getVertex(x + 1, j + 1, vertices[2]);
callback->processTriangle(vertices,x,j); callback->processTriangle(vertices,x,j);
//second triangle //second triangle
// getVertex(x,j,vertices[0]);//already got this vertex before, thanks to Danny Chapman // getVertex(x,j,vertices[0]);//already got this vertex before, thanks to Danny Chapman
getVertex(x+1,j+1,vertices[1]); getVertex(x+1,j+1,vertices[1]);
getVertex(x,j+1,vertices[2]); getVertex(x + 1, j, vertices[2]);
callback->processTriangle(vertices,x,j); callback->processTriangle(vertices, x, j);
} else } else
{ {
//first triangle //first triangle
getVertex(x,j,vertices[0]); getVertex(x,j,vertices[0]);
getVertex(x,j+1,vertices[1]); getVertex(x,j+1,vertices[1]);
getVertex(x+1,j,vertices[2]); getVertex(x+1,j,vertices[2]);
callback->processTriangle(vertices,x,j); callback->processTriangle(vertices,x,j);
//second triangle //second triangle
Show All 27 Lines