ScriptEngine.hxx

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#ifndef SCRIPTENGINE_HXX_
#define SCRIPTENGINE_HXX_
 
#ifdef USE_ANGELSCRIPT
 
#include <angelscript.h>
#include <string>
#include <vector>
 
#include "../util/Singleton.hxx"
 
enum class ScriptCategory
{
  INVALID,
  BUILD_IN,
  ADDON,
  CUSTOM
};
 
struct ScriptUnit
{
  ScriptCategory scriptCategory = ScriptCategory::INVALID;
  unsigned int eventMask = 0; 
  asIScriptModule *scriptModule = nullptr;
  asIScriptFunction *frameStepFunctionPtr = nullptr;            
  asIScriptFunction *eventCallbackFunctionPtr = nullptr;        
  asIScriptFunction *defaultEventCallbackFunctionPtr = nullptr; 
  std::string scriptName;
  std::string scriptHash;
};
 
typedef std::vector<ScriptUnit> ScriptUnitVec;
 
class ScriptEngine : public Singleton<ScriptEngine>
{
public:
  friend Singleton<ScriptEngine>;
 
  ScriptEngine() = default;
  ~ScriptEngine();
 
  void init();
 
  int loadScript(const std::string &scriptname, ScriptCategory category = ScriptCategory::ADDON);
 
  void unloadScript(const std::string &scriptname, ScriptCategory category);
 
  int framestep(float dt);
 
protected:
  void messageCallback(const asSMessageInfo *msg);
 
  std::string composeModuleName(std::string const &scriptName, ScriptCategory origin);
 
  int setupScriptUnit(int unit_id);
 
  asIScriptEngine *engine{};   
  asIScriptContext *context{}; 
 
  ScriptUnitVec m_addon_scrips;
};
 
void registerImVec2(asIScriptEngine *engine);
void registerImGuiBindings(asIScriptEngine *engine);
 
#endif
#endif