ExpressionComponent.h

#pragma once
 
#include "Components/Core/DynamicComponent.h"
 
#include "Utilities/Expressions.h"
 
namespace Cogs
{
  namespace Core
  {
    class Context;
 
    struct CompiledExpression
    {
      Expression * expression = nullptr;
 
      ComponentModel::ComponentHandle componentHandle;
      Reflection::TypeId componentId = Reflection::NoType;
      Reflection::FieldId fieldId = Reflection::NoField;
      Reflection::TypeId memberId = Reflection::NoType;
    };
 
    class ExpressionComponent : public DynamicComponent
    {
    public:
      static void registerType();
 
      ExpressionComponent() = default;
 
      void initialize(Context * context);
      void update();
      void cleanup(Context * context);
 
      std::vector<std::string> targets;
      std::vector<std::string> expressions;
 
    private:
      Context * context = nullptr;
      ExpressionContext ec;
      std::vector<CompiledExpression> compiledExpressions;
    };
  }
}
 
template<> inline Cogs::StringView getName<Cogs::Core::ExpressionComponent>() { return "ExpressionComponent"; }