//	File	: fwText.c
//	Author	: John Wojcik ( QuietBloke )
//	Created : December 2000
//	Desc	: 2d Game Framework Text Manager.
//		This manager controls the displaying of text. Functions allow text 
//		strings to be defined and positioned on the display. Its a bit of a 
//		bodge at the moment as I just want to get it workign for my current 
//		game.
//

#include <stdio.h>
#include <libps.h>
#include "fw.h"

typedef struct
{
	int	OnStageFlag;
	int	Length;
	int ActorID;		// Actor ID of first character in the string
	int	XPos;
	int	YPos;
} Text;

Text TextList[MAX_TEXTS];

int	TextFirstCostume;
int TextFirstChar;

int NextText = 0;

void fwTextReset ( void )
{
	NextText = 0;
}

void fwTextSetFont ( int CostumeID, char FirstChar )
{
	TextFirstCostume = CostumeID;
	TextFirstChar = FirstChar;
}

int fwTextAdd ( char Text[], int xpos, int ypos )
{
	int textLen = 0;
	int	currentActor;
	int	currentCostume;
	int	firstActor;
	int	currentXPos;
	int	currentText;
	// We have been given a pointer to a string

	currentXPos = xpos;
	while ( Text[textLen] != 0 )
	{
		currentCostume = (int)(Text[textLen] ) - TextFirstChar + TextFirstCostume;
		currentActor = fwActorAdd ( currentCostume );
		fwActorPos ( currentActor, currentXPos, ypos );
		if ( textLen == 0 )
		{
			firstActor = currentActor;
		}
		textLen++;
		currentXPos += ( fwActorGetPixelWidth( currentActor ) << fwStageGetPixelShift () );
	}
	TextList[NextText].OnStageFlag = ON_STAGE;
	TextList[NextText].Length = textLen;
	TextList[NextText].ActorID = firstActor;
	TextList[NextText].XPos = xpos;
	TextList[NextText].YPos = ypos;	
	currentText = NextText;
	NextText++;

	if (NextText >= MAX_TEXTS )
	{
		printf ( "Max texts exceeded" );
	}


	return ( currentText );
}


void fwTextPos ( int TextID, int xpos, int ypos )
{
	int	currentActor;
	int	currentXPos;
	int	currentYPos;
	
	TextList[TextID].XPos = xpos;
	TextList[TextID].YPos = ypos;
	
	currentActor = TextList[TextID].ActorID;
	currentXPos = xpos;
	currentYPos = ypos;
	
	// Now move the positions of each of this strings actors
	while ( currentActor < TextList[TextID].Length )
	{
		fwActorPos ( currentActor, currentXPos, currentYPos );
		currentXPos += ( fwActorGetPixelWidth( currentActor ) << fwStageGetPixelShift () );
		currentActor++;
	}
}

void fwTextChange ( int textID, char Text[] )
{
	int textLen = 0;
	int	currentActor;
	int	currentCostume;
	// We have been given a pointer to a string

	currentActor = TextList[textID].ActorID;
	while ( Text[textLen] != 0 && textLen < TextList[textID].Length )
	{
		
		currentCostume = (int)(Text[textLen] ) - TextFirstChar + TextFirstCostume;
		fwActorChangeCostume ( currentActor, currentCostume );
		fwActorSetOnStage ( currentActor, ON_STAGE );		
		textLen++;
		currentActor++;
	}
	TextList[textID].OnStageFlag = ON_STAGE;
	// remember to mark any remaining actors in this string off stage
	while( textLen < TextList[textID].Length )
	{
		fwActorSetOnStage ( currentActor, OFF_STAGE );
		currentActor++;
		textLen++;
	}	
}

void fwTextHide ( int textID )
{
	int currentActor;
	int textPos;
	
	currentActor = TextList[textID].ActorID;
	for ( textPos = 0; textPos < TextList[textID].Length; textPos++)
	{
		fwActorSetOnStage ( currentActor, OFF_STAGE );
		currentActor++;
	}
}

void fwTextShow ( int textID )
{
	int currentActor;
	int textPos;
	
	currentActor = TextList[textID].ActorID;
	for ( textPos = 0; textPos < TextList[textID].Length; textPos++)
	{
		fwActorSetOnStage ( currentActor, ON_STAGE );
		currentActor++;
	}
}

void fwTextSetRGB ( int textID, int red, int green, int blue )
{
	int currentActor;
	int textPos;
	
	currentActor = TextList[textID].ActorID;
	for ( textPos = 0; textPos < TextList[textID].Length; textPos++)
	{
		fwActorSetRGB ( currentActor, red, green, blue );
		currentActor++;
	}
}