/*
Copyright (C) 2006 StrmnNrmn

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
#include "Base/Types.h"

#include "Graphics/GraphicsContext.h"
#include "Math/Vector2.h"
#include "UIContext.h"
#include "UIScreen.h"

#include "Utility/Timer.h"

CUIScreen::CUIScreen( CUIContext * p_context )
:	mpContext( p_context )
{}

CUIScreen::~CUIScreen() {}

void	CUIScreen::Run()
{
	#ifdef DAEDALUS_ENABLE_ASSERTS
	DAEDALUS_ASSERT( mpContext != NULL, "No context" );
	#endif

	SceCtrlData		pad;
	sceCtrlPeekBufferPositive(&pad, 1);

	static const s32	STICK_DEADZONE = 20;

	CTimer		timer;

	// Simple rom chooser
	while( !IsFinished() )
	{
		f32		elapsed_time = timer.GetElapsedSeconds();

		u32 old_buttons = pad.Buttons;
		sceCtrlPeekBufferPositive(&pad, 1);

		s32		stick_x = pad.Lx - 128;
		s32		stick_y = pad.Ly - 128;

		if(stick_x >= -STICK_DEADZONE && stick_x <= STICK_DEADZONE)
		{
			stick_x = 0.0f;
		}
		if(stick_y >= -STICK_DEADZONE && stick_y <= STICK_DEADZONE)
		{
			stick_y = 0.0f;
		}

		v2	stick;
		stick.x = static_cast<f32>(stick_x) / 128.0f;
		stick.y = static_cast<f32>(stick_y) / 128.0f;

		mpContext->Update( elapsed_time );

		Update( elapsed_time, stick, old_buttons, pad.Buttons );

		mpContext->BeginRender();

		Render();

		mpContext->EndRender();
	}

	//
	//	Wait until all buttons are release before continuing
	//  We do this to avoid any undesirable button input after returning to the emulation from pause menu.
	//
	while( (pad.Buttons) != 0 ) // XX Really needed?
	{
		sceCtrlPeekBufferPositive(&pad, 1);
	}
}