/* -----------------------------------------------------------------------------
	GSFramework
	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
----------------------------------------------------------------------------- */


		#include "ui/ui.h"
		#include "ui/ui_camera.h"
		#include "ui/ui_sprite.h"
		#include "ui/ui_ace_manager.h"
		#include "ui/ui_scene_script_event.h"
		#include "ui/ui_scene_scripted_object.h"
		#include "ui/ui_item_script_event.h"
		#include "ui/ui_item_scripted_object.h"
		#include "script/script_engine_types.h"
		#include "log/log.h"

		using namespace GS;
		using namespace GS::S2D;


//------------------------------------------------------------------------------
void				Scene::SetClock(Core::Clock *c)
{	clock = c ? c : new Core::Clock;	}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void				Scene::SetCurrentCamera(Camera *camera)
{	current_camera = camera ? camera : default_camera.c_ptr();	}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
Item				*Scene::ItemFromName(const char *name, Item *parent) const
{
	if	(parent)
	{
		ListForeachPtr(Item *, i, parent->GetChildren())
			if	(i->name == name)
				return i;
	}
	else
	{
		ListForeachPtr(Item *, i, item_list)
			if	(i->name == name)
				return i;
	}
	return NULL;
}
Item				*Scene::ItemFromUid(uint uid) const
{
	ListForeachPtr(Item *, i, item_list)
		if	(i->GetUid() == uid)
			return i;
	return NULL;
}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
float				Scene::GetGlobalFadeEffect() const
{	return global_fade_color.w;		}
void				Scene::SetGlobalFadeEffect(float o)
{	global_fade_color.w = Types::Clamp(o);	}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void				Scene::SetupItemComponents(Item *i)
{
	i->scripted_object = new ItemScriptedObject(i, vm);
	if	(vm)
		i->item_event = new ItemScriptEvent;
}
void				Scene::AddItem(Item *i, bool setup_components)
{
	i->uid = current_item_uid++;

	if	(setup_components)
		SetupItemComponents(i);

	g_ui_messenger.BroadcastMessage(UIMsg_AddingItem, this, (void *)i);
	item_list.Add(i);
	g_ui_messenger.BroadcastMessage(UIMsg_ItemAdded, this, (void *)i);
}
bool				Scene::RemoveItem(Item *i)
{
	g_ui_messenger.BroadcastMessage(UIMsg_DeletingItem, this, (void *)i);

	if	(lock == i)
		lock = NULL;
	item_list.Remove(i);

	g_ui_messenger.BroadcastMessage(UIMsg_ItemDeleted, this, (void *)i);
	return true;
}
void				Scene::DeleteAllItems()
{
	while (List <Item *> ::Item *i = item_list.GetRoot())
		RemoveItem(i->Object());
}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
bool				Scene::ExecCommand(ACE::Command *cmd, float dt)
{
	float k = dt / cmd->duration_left;

	switch (cmd->code)
	{
		case ACE_globalfade:
			global_fade_color.w = Types::Clamp(global_fade_color.w + (cmd->parm[0] - global_fade_color.w) * k);
			return true;
	}
	return ACE::Unit::ExecCommand(cmd, dt);
}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void				Scene::RenderSetup(Core::ResourceFactories *f)
{
	ListForeachPtr(Item *, item, item_list)
		item->RenderSetup(f);
}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void				Scene::Setup()
{
	scene_event->OnSetup(this);

	// Setup items.
	ListForeachPtr(Item *, i, item_list)
		i->Setup();
}
void				Scene::Reset()
{
	scene_event->OnReset(this);
}
void				Scene::Clear()
{
	scene_event->OnDelete(this);

	window_skin = NULL;
	global_fade_color.Set(0, 0, 0, 0);

	item_list.Clear();
}
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
Scene::Scene(Script::IVM *script_vm)
{
	vm = script_vm;
	lock = NULL;

	current_item_uid = 0;

	clock = new Core::Clock;

	default_camera = new Camera;
	default_camera->resolution.Set(1280, 960);

	current_camera = default_camera;

	scene_event = vm ? new SceneScriptEvent : new ISceneEvent;
	scripted_object = new SceneScriptedObject(vm, this);

	global_fade_color.Set(0, 0, 0, 0);
}
Scene::~Scene()
{
	Clear();
	if	(vm)
		vm->InvalidateNativeReference((void *)this);
}
//------------------------------------------------------------------------------