void action(BoundingFrustum const& f,Fn fn)const{
for(auto const& node:nodes){
if(f.Contains(node.bounds)!=DISJOINT)
node.action(f,fn);
}
for(auto const& m:objects){
if(f.Contains(m.bounds)!=DISJOINT)
fn(m);
}
}
void QuadTree::Render(ID3D11DeviceContext* DeviceContext, const XMMATRIX &projection, const XMMATRIX &view)
{
//Frust på Projection sen multiplicera med inverse proj inverse view iverse world.
BoundingFrustum frust;//göra om frustumet till worldspace för boxarna...
frust.CreateFromMatrix(frust, projection);
frust.Transform(frust, XMMatrixInverse(nullptr, view));//FUNKAR TESTAT!
//if (frust.Intersects(box))
//{
// if (!leaf)
// {
// for (int i = 0; i < 4; i++)
// {
// Children[i].Render(DeviceContext, projection,view,World);
// }
// }
// else
// {
// UINT32 vertexSize = sizeof(Vertex);
// UINT32 offset = 0;
// DeviceContext->IASetIndexBuffer(IndexB, DXGI_FORMAT_R32_UINT, 0);
// DeviceContext->IASetVertexBuffers(0, 1, &VertexB, &vertexSize, &offset);
// DeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
// DeviceContext->DrawIndexed(nrIndices, 0, 0);
// }
int testValue = frust.Contains(box);
switch (testValue)
{
case 0:
break;
case 1:
if (!leaf)
{
for (int i = 0; i < 4; i++)
{
Children[i].Render(DeviceContext, projection,view);
}
}
else
{
UINT32 vertexSize = sizeof(Vertex);
UINT32 offset = 0;
DeviceContext->IASetIndexBuffer(IndexB, DXGI_FORMAT_R32_UINT, 0);
DeviceContext->IASetVertexBuffers(0, 1, &VertexB, &vertexSize, &offset);
DeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
DeviceContext->DrawIndexed(nrIndices, 0, 0);
}
break;
default:
if (!leaf)
{
for (int i = 0; i < 4; i++)
{
Children[i].Render(DeviceContext, projection, view);
}
}
else
{
UINT32 vertexSize = sizeof(Vertex);
UINT32 offset = 0;
DeviceContext->IASetIndexBuffer(IndexB, DXGI_FORMAT_R32_UINT, 0);
DeviceContext->IASetVertexBuffers(0, 1, &VertexB, &vertexSize, &offset);
DeviceContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
DeviceContext->DrawIndexed(nrIndices, 0, 0);
}
break;
}
}
//--------------------------------------------------------------------------------------
// Test collisions between pairs of collision objects using XNACollision functions
//--------------------------------------------------------------------------------------
void Collide()
{
// test collisions between objects and frustum
g_SecondarySpheres[0].collision = g_PrimaryFrustum.Contains( g_SecondarySpheres[0].sphere );
g_SecondaryOrientedBoxes[0].collision = g_PrimaryFrustum.Contains( g_SecondaryOrientedBoxes[0].obox );
g_SecondaryAABoxes[0].collision = g_PrimaryFrustum.Contains( g_SecondaryAABoxes[0].aabox );
g_SecondaryTriangles[0].collision = g_PrimaryFrustum.Contains( g_SecondaryTriangles[0].pointa,
g_SecondaryTriangles[0].pointb,
g_SecondaryTriangles[0].pointc );
// test collisions between objects and aligned box
g_SecondarySpheres[1].collision = g_PrimaryAABox.Contains( g_SecondarySpheres[1].sphere );
g_SecondaryOrientedBoxes[1].collision = g_PrimaryAABox.Contains( g_SecondaryOrientedBoxes[1].obox );
g_SecondaryAABoxes[1].collision = g_PrimaryAABox.Contains( g_SecondaryAABoxes[1].aabox );
g_SecondaryTriangles[1].collision = g_PrimaryAABox.Contains( g_SecondaryTriangles[1].pointa,
g_SecondaryTriangles[1].pointb,
g_SecondaryTriangles[1].pointc );
// test collisions between objects and oriented box
g_SecondarySpheres[2].collision = g_PrimaryOrientedBox.Contains( g_SecondarySpheres[2].sphere );
g_SecondaryOrientedBoxes[2].collision = g_PrimaryOrientedBox.Contains( g_SecondaryOrientedBoxes[2].obox );
g_SecondaryAABoxes[2].collision = g_PrimaryOrientedBox.Contains( g_SecondaryAABoxes[2].aabox );
g_SecondaryTriangles[2].collision = g_PrimaryOrientedBox.Contains( g_SecondaryTriangles[2].pointa,
g_SecondaryTriangles[2].pointb,
g_SecondaryTriangles[2].pointc );
// test collisions between objects and ray
float fDistance = -1.0f;
float fDist;
if ( g_SecondarySpheres[3].sphere.Intersects( g_PrimaryRay.origin, g_PrimaryRay.direction, fDist ) )
{
fDistance = fDist;
g_SecondarySpheres[3].collision = INTERSECTS;
}
else
g_SecondarySpheres[3].collision = DISJOINT;
if ( g_SecondaryOrientedBoxes[3].obox.Intersects( g_PrimaryRay.origin, g_PrimaryRay.direction, fDist ) )
{
fDistance = fDist;
g_SecondaryOrientedBoxes[3].collision = INTERSECTS;
}
else
g_SecondaryOrientedBoxes[3].collision = DISJOINT;
if ( g_SecondaryAABoxes[3].aabox.Intersects( g_PrimaryRay.origin, g_PrimaryRay.direction, fDist ) )
{
fDistance = fDist;
g_SecondaryAABoxes[3].collision = INTERSECTS;
}
else
g_SecondaryAABoxes[3].collision = DISJOINT;
if ( TriangleTests::Intersects( g_PrimaryRay.origin, g_PrimaryRay.direction,
g_SecondaryTriangles[3].pointa,
g_SecondaryTriangles[3].pointb,
g_SecondaryTriangles[3].pointc,
fDist ) )
{
fDistance = fDist;
g_SecondaryTriangles[3].collision = INTERSECTS;
}
else
g_SecondaryTriangles[3].collision = DISJOINT;
// If one of the ray intersection tests was successful, fDistance will be positive.
// If so, compute the intersection location and store it in g_RayHitResultBox.
if( fDistance > 0 )
{
// The primary ray's direction is assumed to be normalized.
XMVECTOR HitLocation = XMVectorMultiplyAdd( g_PrimaryRay.direction, XMVectorReplicate( fDistance ),
g_PrimaryRay.origin );
XMStoreFloat3( &g_RayHitResultBox.aabox.Center, HitLocation );
g_RayHitResultBox.collision = INTERSECTS;
}
else
{
g_RayHitResultBox.collision = DISJOINT;
}
}
