// #include <stdio.h>
// #include <libps.h>
// #include "fwDirect.h"
// #include "fwActor.h"
#include "fw.h"

// Note : All these values are in virtual units NOT pixels
int	CameraLeftPos;
int	CameraTopPos;
int	StageWidth;
int	StageHeight;

int	StagePixelShift;

int fwStageGetPixelShift ( void )
{
	return ( StagePixelShift );
}

void fwStageSetPixelShift ( int shift )
{
	StagePixelShift = shift;
}

int fwStageGetCameraLeftPos ( void )
{
	return CameraLeftPos;
}

int fwStageGetCameraTopPos ( void )
{
	return CameraTopPos;
}

void fwStageSetCameraTop ( int yPos )
{
	int maxYPos;

	maxYPos = StageWidth - ( PIXEL_SCREEN_HEIGHT << ( StagePixelShift ) );
	if ( yPos < 0 ) 
	{
		yPos = 0;
	}
	if ( yPos > maxYPos )
	{
		yPos = maxYPos;
	}
	CameraTopPos = yPos;
}

void fwStageSetCameraLeft ( int xPos )
{
	int maxXPos;

	maxXPos = StageHeight = ( PIXEL_SCREEN_WIDTH << ( StagePixelShift ) );
	if ( xPos < 0 )
	{
		xPos = 0;
	}
	if ( xPos > maxXPos )
	{
		xPos = maxXPos;
	}
	CameraLeftPos = xPos;
}

void fwStageSetCameraTopLeft ( int yPos, int xPos )
{
	CameraTopPos = yPos;
	CameraLeftPos = xPos;
}

void fwStageSetWidth ( int width )
{
	StageWidth = width;
}

void fwStageSetHeight ( int height )
{
	StageHeight = height;
}

void fwStageSetSize ( int width, int height )
{
	StageWidth = width;
	StageHeight = height;
}