static csVector3 FindBiggestHorizontalMovement (
const csBox3& box1, const csReversibleTransform& trans1,
const csBox3& box2, const csReversibleTransform& trans2)
{
// The origin of the second box in the 3D space of the first box.
csVector3 o2Tr = trans1.Other2This (trans2.GetOrigin ());
// Transformed bounding box.
csBox3 box2Tr;
box2Tr.StartBoundingBox (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (0))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (1))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (2))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (3))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (4))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (5))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (6))));
box2Tr.AddBoundingVertexSmart (trans1.Other2ThisRelative (trans2.This2OtherRelative (box2.GetCorner (7))));
float xr = o2Tr.x - box1.MaxX () + box2Tr.MinX ();
float xl = box1.MinX () - o2Tr.x - box2Tr.MaxX ();
float zr = o2Tr.z - box1.MaxZ () + box2Tr.MinZ ();
float zl = box1.MinZ () - o2Tr.z - box2Tr.MaxZ ();
csVector3 newpos = trans2.GetOrigin ();
if (xr >= xl && xr >= zr && xr >= zl)
newpos = trans1.This2Other (o2Tr + csVector3 (-xr, 0, -o2Tr.z));
else if (xl >= xr && xl >= zr && xl >= zl)
newpos = trans1.This2Other (o2Tr + csVector3 (xl, 0, -o2Tr.z));
else if (zr >= xl && zr >= xr && zr >= zl)
newpos = trans1.This2Other (o2Tr + csVector3 (-o2Tr.x, 0, -zr));
else if (zl >= xl && zl >= xr && zl >= zr)
newpos = trans1.This2Other (o2Tr + csVector3 (-o2Tr.x, 0, zl));
return newpos;
}
void csMeshWrapper::GetFullBBox (csBox3& box)
{
box = GetObjectModel ()->GetObjectBoundingBox ();
csMovable* mov = &movable;
while (mov)
{
if (!mov->IsTransformIdentity ())
{
const csReversibleTransform& trans = mov->GetTransform ();
csBox3 b (trans.This2Other (box.GetCorner (0)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (1)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (2)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (3)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (4)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (5)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (6)));
b.AddBoundingVertexSmart (trans.This2Other (box.GetCorner (7)));
box = b;
}
mov = ((csMovable*)mov)->GetParent ();
}
}
void csMeshOnTexture::ScaleCamera (iMeshWrapper* mesh, int txtw, int txth)
{
UpdateView (txtw, txth);
const csBox3 mesh_box = mesh->GetWorldBoundingBox ();
const csVector3 mesh_center = mesh_box.GetCenter ();
const iPerspectiveCamera* camera = view->GetPerspectiveCamera ();
const float aspect = camera->GetFOV ();
const float shift_x = camera->GetShiftX ();
const float shift_y = camera->GetShiftY ();
int i;
float maxz = -100000000.0f;
for (i = 0 ; i < 8 ; i++)
{
csVector3 corner = mesh_box.GetCorner (i) - mesh_center;
float z = (corner.x * aspect) / (1.0f - shift_x);
if (z < 0) z = (corner.x * aspect) / (float (txtw) - shift_x);
z += corner.z;
if (z > maxz) maxz = z;
z = (corner.y * aspect) / (1.0f - shift_y);
if (z < 0) z = (corner.y * aspect) / (float (txth) - shift_y);
z += corner.z;
if (z > maxz) maxz = z;
}
csVector3 cam_pos = mesh_center;
cam_pos.z -= maxz;
for (i = 0 ; i < 8 ; i++)
{
csVector3 corner = mesh_box.GetCorner (i) - cam_pos;
csVector2 p = view->GetCamera()->Perspective (corner);
}
view->GetCamera()->GetTransform ().Identity ();
view->GetCamera()->GetTransform ().SetOrigin (cam_pos);
}