//----------------------------------------------------------------//
bool MOAIVertexFormat::ComputeBounds ( void* buffer, u32 size, ZLBox& bounds ) {
u32 total = this->mVertexSize ? ( size / this->mVertexSize ) : 0;
if ( !total ) return false;
u32 coordAttributeIdx = this->mAttributeUseTable [ ARRAY_VERTEX ].mAttrID;
if ( coordAttributeIdx >= this->mTotalAttributes ) return false;
MOAIVertexAttribute& coordAttr = this->mAttributes [ coordAttributeIdx ];
if ( coordAttr.mType != ZGL_TYPE_FLOAT ) return false; // TODO: handle other types
if ( coordAttr.mSize < 2 ) return false;
buffer = ( void* )(( size_t )buffer + coordAttr.mOffset );
float* components = ( float* )buffer;
ZLVec3D coord ( components [ 0 ], components [ 1 ], ( coordAttr.mSize > 2 ? components [ 2 ] : 0.0f ));
bounds.Init ( coord );
bounds.Inflate ( 0.0000001f ); // prevent 'empty' bounds on cardinal direction lines or single vertex objects
for ( u32 i = 1; i < total; ++i ) {
buffer = ( void* )(( size_t )buffer + this->mVertexSize );
components = ( float* )buffer;
coord.Init ( components [ 0 ], components [ 1 ], ( coordAttr.mSize > 2 ? components [ 2 ] : 0.0f ));
bounds.Grow ( coord );
}
return true;
}
//----------------------------------------------------------------//
void ZLQuaternion::Multiply ( const ZLQuaternion& rhs ) {
ZLVec3D cross;
cross.Cross ( mV, rhs.mV );
ZLVec3D resultVec;
resultVec.Init ( rhs.mV );
resultVec.Scale ( mS );
ZLVec3D scaledVec;
scaledVec.Init ( mV );
scaledVec.Scale ( rhs.mS );
resultVec.Add ( scaledVec );
resultVec.Sub ( cross );
mS = mS * rhs.mS - mV.Dot ( rhs.mV );
mV.Init ( resultVec );
}
//----------------------------------------------------------------//
ZLVec3D MOAIAnimCurveVec::GetCurveDelta () const {
ZLVec3D delta;
u32 size = this->mKeys.Size ();
if ( size > 1 ) {
delta = this->mSamples [ size - 1 ];
delta.Sub ( this->mSamples [ 0 ]);
}
else {
delta.Init ( 0.0f, 0.0f, 0.0f );
}
return delta;
}
int GIIHelper::_setWorldLoc( lua_State *L ){
MOAILuaState state (L);
if ( !state.CheckParams ( 1, "UN" )) return 0;
MOAITransform* dst = state.GetLuaObject< MOAITransform >(1, true);
float x = state.GetValue< float >( 2, 0.0f );
float y = state.GetValue< float >( 3, 0.0f );
float z = state.GetValue< float >( 4, 0.0f );
ZLVec3D loc;
loc.Init( x, y, z );
const ZLAffine3D* inherit = dst->GetLinkedValue < ZLAffine3D* >( PACK_ATTR ( MOAITransformBase, MOAITransformBase::INHERIT_TRANSFORM ), 0 );
if( inherit ) {
ZLAffine3D inverse;
inverse.Inverse( *inherit );
inverse.Transform( loc );
}
dst->SetLoc( loc );
dst->ScheduleUpdate();
return 0;
}