G3D::Matrix4 Utils::GetTransformation(IDefinition def)
{
G3D::Matrix4 translation;
if (def.Position.x == 0.0f && def.Position.y == 0.0f && def.Position.z == 0.0f)
translation = G3D::Matrix4::identity();
else
translation = G3D::Matrix4::translation(-(def.Position.z - Constants::MaxXY),
-(def.Position.x - Constants::MaxXY), def.Position.y);
G3D::Matrix4 rotation = RotationX(ToRadians(def.Rotation.z)) * RotationY(ToRadians(def.Rotation.x)) * RotationZ(ToRadians(def.Rotation.y + 180));
if (def.Scale() < 1.0f || def.Scale() > 1.0f)
return G3D::Matrix4::scale(def.Scale()) * rotation * translation;
return rotation * translation;
}
Vector3 TransformDoodadVertex(const IDefinition& def, Vector3& vec)
{
float mapOffset = 17066.0f + (2 / 3.0f);
Vector3 MapPos = Vector3(mapOffset, 0, mapOffset);
G3D::Matrix4 rot = G3D::Matrix4::identity();
rot = rot.pitchDegrees(def.Rotation.y - 90);
rot = rot.yawDegrees(-def.Rotation.x);
rot = rot.rollDegrees(def.Rotation.z - 90);
Vector3 offset = def.Position - MapPos;
// Because homoMul wants a G3D::Vector3
G3D::Vector3 g3dvec(vec.x, vec.y, vec.z);
G3D::Vector3 g3dOffset(offset.x, offset.y, offset.z);
G3D::Vector3 ret = (rot.homoMul(g3dvec, 1) * def.Scale()) + g3dOffset;
Vector3 ret2 = (Utils::VectorTransform(vec, rot) + def.Position - MapPos) * def.Scale();
return ret2; //Vector3(ret.x, ret.y, ret.z);
}
Vector3 Utils::TransformDoodadVertex(const IDefinition& def, Vector3 vec, bool translate)
{
// Sources of information:
/// http://www.pxr.dk/wowdev/wiki/index.php?title=ADT/v18&oldid=3715
// This function applies to both external doodads and WMOs
// Rotate our Doodad vertex
G3D::Matrix4 rot = G3D::Matrix3::fromEulerAnglesXYZ(Utils::ToRadians(def.Rotation.z), Utils::ToRadians(-def.Rotation.x), Utils::ToRadians(def.Rotation.y + 180));
Vector3 ret = Utils::VectorTransform(vec, rot);
// And finally scale and translate it to our origin
ret = ret * def.Scale();
if (translate)
ret = ret + Vector3(Constants::MaxXY - def.Position.z, Constants::MaxXY - def.Position.x, def.Position.y);
return ret;
}