//----------------------------------------------------------------------------
void IntersectTriangleCylinder::OnIdle ()
{
MeasureTime();
if (MoveCamera())
{
mCuller.ComputeVisibleSet(mScene);
}
if (MoveObject())
{
mScene->Update();
mCuller.ComputeVisibleSet(mScene);
TestIntersection();
}
if (mRenderer->PreDraw())
{
mRenderer->ClearBuffers();
mRenderer->Draw(mCuller.GetVisibleSet());
//DrawFrameRate(8, GetHeight()-8, mTextColor);
mRenderer->PostDraw();
mRenderer->DisplayColorBuffer();
}
UpdateFrameCount();
}
//----------------------------------------------------------------------------
void TestTriTri::GetIntersecting ()
{
Vector2 akV0[3], akV1[3];
for (int i = 0; i < 3; i++)
{
akV0[i].x = (Real) m_aiX0[i];
akV0[i].y = (Real) m_aiY0[i];
akV1[i].x = (Real) m_aiX1[i];
akV1[i].y = (Real) m_aiY1[i];
}
Vector2 kW0, kW1;
Real fTLast, fTMax = 1.0;
m_iQuantity = 0;
switch ( m_eType )
{
case TT_TEST:
m_bIntersecting = TestIntersection(akV0,akV1);
break;
case TT_FIND:
m_bIntersecting = FindIntersection(akV0,akV1,m_iQuantity,
m_akVertex);
break;
case TT_TEST_VEL:
kW0 = GetVelocity(m_uiSpeed0,m_uiAngle0);
kW1 = GetVelocity(m_uiSpeed1,m_uiAngle1);
m_bIntersecting = TestIntersection(fTMax,akV0,kW0,akV1,kW1,
m_fTFirst,fTLast);
break;
case TT_FIND_VEL:
kW0 = GetVelocity(m_uiSpeed0,m_uiAngle0);
kW1 = GetVelocity(m_uiSpeed1,m_uiAngle1);
m_bIntersecting = FindIntersection(fTMax,akV0,kW0,akV1,kW1,
m_fTFirst,fTLast,m_iQuantity,m_akVertex);
break;
}
InvalidateRect(GetWindowHandle(),NULL,TRUE);
}
//Checks for line intersections and adjusts color accordingly
void update()
{
//Each update we must be sure to update the convex hulls with the current orientation of the polygons
convexHull1.rotation = poly1.rotation;
convexHull2.rotation = poly2.rotation;
//test if they are intersection. If so, change the color of the line segment.
if (TestIntersection(convexHull1, poly1.center, convexHull2, poly2.center))
{
//Decouple
DecoupleObjects(poly1, poly2, minimumTranslationVector, overlap);
}
}
bool Rect< TReal >::SetIntersect( const Rect& A, const Rect& B )
{
bool intersects = TestIntersection( A, B );
if ( intersects )
{
Set(
Math< TReal >::Max( A.Left, B.Left ),
Math< TReal >::Max( A.Top, B.Top ),
Math< TReal >::Min( A.Right, B.Right ),
Math< TReal >::Min( A.Bottom, B.Bottom )
);
}
return intersects;
}
bool Rect< TReal >::Intersect( TReal left, TReal top, TReal right, TReal bottom )
{
bool intersects = TestIntersection( left, top, right, bottom );
if ( intersects )
{
Set(
Math< TReal >::Max( Left, left ),
Math< TReal >::Max( Top, top ),
Math< TReal >::Min( Right, right ),
Math< TReal >::Min( Bottom, bottom )
);
}
return intersects;
}
int main( int argc, char **argv )
{
int num_sample=100000;
int t0=clock();
InitRandom(100000);
int t1=clock();
///Initialization performance
printf("** Time elapsed for initialization of %d sample is %d\n \n",num_sample,t1-t0);
Hash2D.Set(Allocated.begin(),Allocated.end());
///Box Query performance
t0=clock();
MyScalarType avg_test=TestBox(num_sample);
t1=clock();
printf("** Time elapsed for %d BOX queries is %d\n, average found %5.5f \n \n",num_sample,t1-t0,avg_test);
///Intersecting segment performance
t0=clock();
MyScalarType avg_int=TestIntersection(num_sample);
t1=clock();
printf("** Time elapsed for %d INTERSECTION queries is %d\n, average found %5.5f \n \n",num_sample,t1-t0,avg_int);
///closest test
t0=clock();
MyScalarType avg_clos=TestClosest(num_sample);
t1=clock();
printf("** Time elapsed for %d CLOSEST queries is %d\n, average found %5.5f \n \n",num_sample,t1-t0,avg_clos);
///reinitialize structure
MyMark.mark=0;
Hash2D.Clear();
int n_test=1000;
InitRandom(n_test,100,0.1);
Hash2D.Set(Allocated.begin(),Allocated.end());
int tested_int=TestCorrectIntersect(n_test);
printf("** Correct Intersect on %d test are %d \n",n_test,tested_int);
int tested_clos=TestCorrectClosest(n_test);
printf("** Correct Closest on %d test are %d \n",n_test,tested_clos);
return 0;
}
bool ApplicationClass::HandleInput()
{
bool result;
int mouseX, mouseY;
// Do the input frame processing.
result = m_Input->Frame();
if(!result)
{
return false;
}
// Check if the user pressed escape and wants to exit the application.
if(m_Input->IsEscapePressed() == true)
{
return false;
}
// Check if the left mouse button has been pressed.
if(m_Input->IsLeftMouseButtonDown() == true)
{
// If they have clicked on the screen with the mouse then perform an intersection test.
if(m_beginCheck == false)
{
m_beginCheck = true;
m_Input->GetMouseLocation(mouseX, mouseY);
TestIntersection(mouseX, mouseY);
}
}
// Check if the left mouse button has been released.
if(m_Input->IsLeftMouseButtonDown() == false)
{
m_beginCheck = false;
}
return true;
}
// ProximityCheck()
// this function will take the pieces close enough to be
// attached to another and checks if this linkage is possible
// this function is used in the PutOn/Below function
// the boolean variable will indicate an above or a below connection
// this function will restore the original location of the block before returning
bool VDSBuildingBlock::ProximityCheck( VDSBuildingBlock& Parent, bool above )
{
/// this is added to make old files work
// some double wheels weren't added after the modification which was made there
// maybe that was because i changed the way the
// return true;
// i will store its current position to restore in case of failure
// before making the AABB test
// i will change a little in the bounding box data (shrinking a little)
// to make the check more reliable
// first i will calculate the store the y location and change it
// as if the pieces are attached
// in case of failure..i will restore it
// also..i will shrink the dimensions a little for better handling
// we need 2 boxes..a box here and a box at the parent
// these boxes changes if above or not
VDSGeom* pThisBox;
VDSGeom* pParentBox;
// get the y position of the parent..to move the bounding box just above it
float OldY; // old y position of bounding box (restored in case of failure)
TSRMatrix4 ParentMat; // Get The parent matrix here
// set the pointers according to the above boolean variable
if ( above )
{
pThisBox = m_pLowerBox;
pParentBox = Parent.m_pUpperBox;
}
else
{
pThisBox = m_pUpperBox;
pParentBox = Parent.m_pLowerBox;
}
// get the matrix of the end of the parent
// (the part where we will put)
pParentBox->GetWorldMatrix( ParentMat );
// make the matrix y in the bounding box here just above it
// as if it is there
OldY = pThisBox->m_Transform._42;
// above or below will determine the y position to bring the block to
if ( above )
{
pThisBox->m_Transform._42 = ParentMat._42 + ( ( pThisBox->m_Dimensions.y + pParentBox->m_Dimensions.y ) / 2.0f );
}
else
{
pThisBox->m_Transform._42 = ParentMat._42 - ( ( pThisBox->m_Dimensions.y + pParentBox->m_Dimensions.y ) / 2.0f );
}
// shrink it a little..
TSRVector3 olddims;
olddims = pThisBox->m_Dimensions;
pThisBox->m_Dimensions = 0.95f * pThisBox->m_Dimensions;
// make the AABB test now
if ( TestIntersection( Parent ) == false )
{
// failure..restore data..
pThisBox->m_Transform._42 = OldY;
pThisBox->m_Dimensions = olddims;
return false;
}
pThisBox->m_Dimensions = olddims;
return true;
}
void CQuadTree::AddReference( Box3f box, CEntity * pEntity, CQuadNode * node ) {
assert( m_iLevels > 1 );
int iNumInside = 0;
Box3f boxTemp = box;
Box3f boxEnt = *pEntity->GetBoundingBox();
// move box to the entity's height
boxTemp.Center().Y() = boxEnt.Center().Y();
boxTemp.Extent(1) = 100.0f; //extend this box infinitely
bool bEntInQuad = false;
Vector3f vBoxVerts[8];
bool abValid[8] = { 1,1,1,1,1,1,1,1 };//{ 0,0,0,0,0,0,0,0 };
bool bEntBoxInNode = false;
bool bNodeInEntBox = false;
//switch(TestIntersection( boxTemp, boxEnt ) )
switch(TestIntersection( boxEnt, boxTemp ) )
{
case true: // box intersects
node->m_EntMap[pEntity->GetId()] = pEntity;
bEntInQuad = true; // find if the children intersect too
break;
case false: // ent box is INSIDE or OUTSIDE the node
// get vertices for the bounding box
boxEnt.ComputeVertices(vBoxVerts);
// if entities box is contained in node box
for (int j=0; j<8; j++ ) {
if (InBox( vBoxVerts[j], boxTemp)) {
bEntBoxInNode = true;
}
}
if (bEntBoxInNode == true) {
//if (ContOrientedBox (8, vBoxVerts, abValid, node->m_BBox)) {
node->m_EntMap[pEntity->GetId()] = pEntity; //entity is in this node
bEntInQuad = true; // find out what child quads also contain this
iNumInside++;
}
else { // OUTSIDE or entities box contains the bounding box!
boxTemp.ComputeVertices(vBoxVerts);
// if node box is contained in entities box
for (int j=0; j<8; j++ ) {
if (InBox( vBoxVerts[j], boxEnt)) {
bNodeInEntBox = true;
}
}
if (bNodeInEntBox == true) {
//if (ContOrientedBox (8, vBoxVerts, abValid, boxTemp)) {
node->m_EntMap[pEntity->GetId()] = pEntity; //entity is in this node
bEntInQuad = true; // find out what child quads also contain this
}
else {
// entity is outside, so don't add
bEntInQuad = false;
return;
}
}
break;
}
// now this box will also intersect/be contained in the children as well
if (bEntInQuad == true ) {
//check if we need to subdivide even further
if (iNumInside >= MAX_ENTS_PER_NODE) {
m_iLevels++; //increase the number of levels
SubDivide(node, m_iLevels-1);
}
if (node->m_pChildNode[NE] != NULL) {
AddReference( node->m_pChildNode[NE]->m_BBox, pEntity, node->m_pChildNode[NE]);
//node->m_pChildNode[NE]->m_EntMap[pEntity->GetId()] = pEntity;
}
if (node->m_pChildNode[NW] != NULL) {
AddReference( node->m_pChildNode[NW]->m_BBox, pEntity, node->m_pChildNode[NW]);
//node->m_pChildNode[NW]->m_EntMap[pEntity->GetId()] = pEntity;
}
if (node->m_pChildNode[SE] != NULL) {
AddReference( node->m_pChildNode[SE]->m_BBox, pEntity, node->m_pChildNode[SE]);
//node->m_pChildNode[SE]->m_EntMap[pEntity->GetId()] = pEntity;
}
if (node->m_pChildNode[SW] != NULL) {
AddReference( node->m_pChildNode[SW]->m_BBox, pEntity, node->m_pChildNode[SW]);
//node->m_pChildNode[SW]->m_EntMap[pEntity->GetId()] = pEntity;
}
}
return;
}
bool Rect< TReal >::TestIntersection( const Rect& r ) const
{
return TestIntersection( r.Left, r.Top, r.Right, r.Bottom );
}
