OBB OBBTransform(const mat4& mat, const OBB& obb)
{
OBB result;
mat4 matIT = TransposeOfInverse(mat);
result.m_center = TransformPoint(mat, obb.m_center);
for(int i = 0; i < 3; ++i)
result.m_b[i] = TransformVec(matIT, obb.m_b[i]);
return result;
}
void TransformVec (ElementId ei,
const T & vec, TRANSFORM_TYPE type) const
{
TransformVec (ei.Nr(), ei.IsBoundary(), vec, type);
}
bool VecSliderMenuItem::OnKey(int key, int mod)
{
float inc = m_scale * kInc;
if(mod & KMOD_SHIFT) inc = m_scale * kLargeInc;
else if(mod & KMOD_CTRL) inc = m_scale * kSmallInc;
float incAmt = 0.f;
switch(key)
{
case SDLK_UP:
m_pos = Max(0, m_pos - 1);
break;
case SDLK_DOWN:
m_pos = Min(VECSLIDE_NUM-1, m_pos + 1);
break;
case SDLK_LEFT:
incAmt = -inc;
break;
case SDLK_RIGHT:
incAmt = inc;
break;
case SDLK_BACKSPACE:
menu_DeactivateMenuItem();
break;
default:
break;
}
vec3 val = m_get();
vec3 old = val;
float radAmt = (M_PI / 180.f) * incAmt;
mat4 rotmat;
static const vec3 kXAxis = {1,0,0};
static const vec3 kYAxis = {0,1,0};
static const vec3 kZAxis = {0,0,1};
switch(m_pos)
{
case VECSLIDE_RotateX:
rotmat = RotateAround(kXAxis, radAmt);
val = TransformVec(rotmat, val);
break;
case VECSLIDE_RotateY:
rotmat = RotateAround(kYAxis, radAmt);
val = TransformVec(rotmat, val);
break;
case VECSLIDE_RotateZ:
rotmat = RotateAround(kZAxis, radAmt);
val = TransformVec(rotmat, val);
break;
case VECSLIDE_X:
val.x += incAmt;
break;
case VECSLIDE_Y:
val.y += incAmt;
break;
case VECSLIDE_Z:
val.z += incAmt;
break;
case VECSLIDE_Length:
{
float len = Length(val);
val = val * (len+incAmt) / len;
}
break;
default:break;
}
vec3 newVal = m_limits(val);
if(newVal != old)
{
m_set(newVal);
UpdateData();
}
return true;
}
