ue4 integration

[Adv4nc3d123]

I'm trying to use the HSM with ue4, however enabling RTTI in ue4 makes packagingimpossible, but when I don't enable it I can't seem to get it to work because of the RTTI.

[amaiorano]

Hi there,

If you disable RTTI, you'll need to add the DEFINE_HSM_STATE() macros in each of your states to inject the custom RTTI info needed by hsm. Check out the info in the documentation:
https://github.com/amaiorano/hsm/wiki/Chapter-1.-Getting-Started#rtti

If you haven't already, I highly recommend reading the doc. Let me know if that works for you! I've shipped UE4 multiple games that use HSM, so it should work out just fine.

[Adv4nc3d123]

Hi, this is what I am doing right now (just leaving 1 state in there) and the baseState in there in case I happen to be using the wrong syntax;

struct MyStates
{
struct BaseState : hsm::StateWithOwner
{
DEFINE_HSM_STATE(BaseState);
};
struct Grabbed : BaseState
{
DEFINE_HSM_STATE(Grabbed);

	virtual hsm::Transition GetTransition()
	{
		if (!Owner().m_pBlackboard->GetValueAsBool(ISGRABBED))
			return hsm::SiblingTransition<FallLoop>();

		return hsm::NoTransition();
	}
	virtual void OnEnter()
	{
		Owner().m_bShouldProcess = true;
		Owner().m_Animstate = EAnimEnum::Grabbed;
	}
};

};

this throws me all of these erors:
Severity Code Description Project File Line Suppression State
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 33
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 38
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 69
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 108
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 140
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 164
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 196
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 217
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 234
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 250
Error (active) E0135 namespace "hsm" has no member "StateTypeIdStorage" FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 266
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 33
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 33
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 33
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 33
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 33
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 38
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 38
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 38
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 38
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 38
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 69
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 69
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 69
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 69
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 69
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 108
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 108
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 108
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 108
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 108
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 140
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 140
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 140
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 140
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 140
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 164
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 164
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 164
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 164
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 164
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 196
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 196
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 196
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 196
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 196
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 217
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 217
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 217
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 217
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 217
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 234
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 234
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 234
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 234
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 234
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 250
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 250
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 250
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 250
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 250
Error C2039 'StateTypeIdStorage': is not a member of 'hsm' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 266
Error C4430 missing type specifier - int assumed. Note: C++ does not support default-int FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 266
Error C2146 syntax error: missing ';' before identifier 'sStateTypeId' FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 266
Error C3861 'sStateTypeId': identifier not found FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 266
Error C2065 'sStateTypeId': undeclared identifier FluffyFactory C:\perf\Grp_Fluffy\Dev\FluffyFactory\Source\FluffyFactory\FluffyCharacter.cpp 266

which are basically the same for every state I Define
I am currently using the latest Release Build I could find on here.

[Adv4nc3d123]

So I downloaded the second latest release (1.5) and had to comment the line //static_assert(std::is_convertible<TargetState, State>::value, "TargetState must derive from hsm::State");

and add this define at the start to make it build
#define HSM_CPP_RTTI 0

Seems to me there must be something missing in the latest release or the syntax of something has changed which I am not aware off.

[amaiorano]

So I downloaded the second latest release (1.5) and had to comment the line //static_assert(std::is_convertible<TargetState, State>::value, "TargetState must derive from hsm::State");

This assert is important, you should not remove it. If you're triggering it, it means you've probably added a DEFINE_HSM_STATE somewhere you shouldn't. This macro should only really be added to the actual states you transition to, not to base classes for your states. I noticed in the code you pasted above that you had added this macro to your BaseState, which you shouldn't be doing (see this example: https://github.com/amaiorano/hsm/blob/master/samples/hsm_book_samples/source/ch3/drawing_hsms.cpp).

and add this define at the start to make it build
#define HSM_CPP_RTTI 0

This is correct. You are supposed to define this to 0 to disable C++ RTTI, and make use of the custom RTTI. I assume you had already done this even before downgrading.

Seems to me there must be something missing in the latest release or the syntax of something has changed which I am not aware off.

I think you found a bug in the latest version related to custom RTTI. When I get the chance, I'll take a look and see what's up. For now, using 1.5 should be perfectly fine.