MMO Starter Kit

Development World Creation
,
1209

Add FindClass and Eval function:

Add to MMOUtility.h:



UFUNCTION(BlueprintPure, Category = "MMO Utility")
	static UClass* FindClass(const FString& ClassName);

	UFUNCTION(BlueprintPure, Category = "MMO Utility")
	static float EvalMathExpression(const FString& expr);

add to MMOUtility.cpp:



UClass* UMMOUtility::FindClass(const FString& ClassName)
 {
	 check(*ClassName);

	 UObject* ClassPackage = ANY_PACKAGE;

	 if (UClass* Result = FindObject<UClass>(ClassPackage, *ClassName))
		 return Result;

	 if (UObjectRedirector* RenamedClassRedirector = FindObject<UObjectRedirector>(ClassPackage, *ClassName))
		 return CastChecked<UClass>(RenamedClassRedirector->DestinationObject);

	 return nullptr;
 }


 double ParseAtom(char*& expr) {
	 char* end_ptr;
	 double res = strtod(expr, &end_ptr);
	 expr = end_ptr;
	 return res;
 }

 double ParseFactors(char*& expr) {
	 double num1 = ParseAtom(expr);
	 for (;;) {
		 char op = *expr;
		 if (op != '/' && op != '*')
			 return num1;
		 expr++;
		 double num2 = ParseAtom(expr);
		 if (op == '/')
			 num1 /= num2;
		 else
			 num1 *= num2;
	 }
 }
 double ParseSummands(char*& expr) {
	 double num1 = ParseFactors(expr);
	 for (;;) {
		 char op = *expr;
		 if (op != '-' && op != '+')
			 return num1;
		 expr++;
		 double num2 = ParseFactors(expr);
		 if (op == '-')
			 num1 -= num2;
		 else
			 num1 += num2;
	 }
 }

 double EvaluateTheExpression(char* expr) {
	 return ParseSummands(expr);
 }
 float UMMOUtility::EvalMathExpression(const FString& expr)
 {

	 return (float)EvaluateTheExpression(TCHAR_TO_ANSI(*expr));
}

Credits:
https://www.strchr.com/expression_evaluator

I Simply Updated the Scripts / made them available in Blueprints.

For Unbugging the Char Preview:

First follow this tutorial:

After that change the Blueprints like that:

  1. Add a Static Mesh Component to the “Studio” (to the position where your Char should be) and call it Book.

  2. Add a Variable called “Actor” with type ModularPlayerActor Reference

  3. add A function “BuildChar” -> BuildChar posted by anonymous | blueprintUE | PasteBin For Unreal Engine

  4. Save and Compile the Script.

  5. In MMOPlayerController add a variable called “Renderer 2D” with the type of your new blueprint class.

  6. Make the EventGraph of MMOPlayerController look like this: http://i.epvpimg.com/wqlBc.png

  7. Add the Call to create the “Studio” in BeginPlay : http://i.epvpimg.com/sZode.png

Basically it now works. But you have to Add the Updating Equipment , too. Otherwhise it will only refresh on reopen the Equipment Window.