Pararena2/Sources/Computer.c

//============================================================
//============================================================
//==														==
//==		Computer Persona Handling Routines				==
//==														==
//============================================================
//============================================================


//========================================================  Includes  

#include "Globals.h"
#include "UnivUtilities.h"
#include "Computer.h"
#include "Dynamics.h"
#include "SoundUtils.h"


//========================================================  Functions  
//========================================================  DiagonalToPlayer  

short DiagonalToPerson (playerType *who)

{
	short		newDirection;
	
	if (who->selector == kOpponentSelector)
	{
		if (thePlayer.xPos > theOpponent.xPos)
		{
			if (thePlayer.zPos > theOpponent.zPos)
				newDirection = kFacingNorthEast;
			else
				newDirection = kFacingSouthEast;
		}
		else
		{
			if (thePlayer.zPos > theOpponent.zPos)
				newDirection = kFacingNorthWest;
			else
				newDirection = kFacingSouthWest;
		}
	}
	else
	{
		if (theOpponent.xPos > thePlayer.xPos)
		{
			if (theOpponent.zPos > thePlayer.zPos)
				newDirection = kFacingNorthEast;
			else
				newDirection = kFacingSouthEast;
		}
		else
		{
			if (theOpponent.zPos > thePlayer.zPos)
				newDirection = kFacingNorthWest;
			else
				newDirection = kFacingSouthWest;
		}
	}
	
	return (newDirection);
}


//========================================================  DiagonalToBall  

short DiagonalToBall (playerType *who)

{
	short		newDirection;
	
	if (theBall.xPos > who->xPos)
	{
		if (theBall.zPos > who->zPos)
			newDirection = kFacingNorthEast;
		else
			newDirection = kFacingSouthEast;
	}
	else
	{
		if (theBall.zPos > who->zPos)
			newDirection = kFacingNorthWest;
		else
			newDirection = kFacingSouthWest;
	}
	return (newDirection);
}


//========================================================  OctalToPoint  

short OctalToPoint (playerType *who, register short xPos, register short zPos)

{
	register long	rise, run;
	short			newDirection;
	
	if (xPos > who->xPos)
	{
		if (zPos > who->zPos)
			newDirection = kFacingNorthEast;
		else
			newDirection = kFacingSouthEast;
	}
	else
	{
		if (zPos > who->zPos)
			newDirection = kFacingNorthWest;
		else
			newDirection = kFacingSouthWest;
	}
	
	switch (newDirection)
	{
		case kFacingNorthEast:
			rise = (long)zPos - (long)who->zPos;
			run = (long)xPos - (long)who->xPos;
			if ((rise * 2) < run)
			{
				newDirection = kFacingEast;
			}
			else if (rise > (run * 2))
			{
				newDirection = kFacingNorth;
			}
			else
			{
				newDirection = kFacingNorthEast;
			}
			break;
		case kFacingNorthWest:
			rise = (long)zPos - (long)who->zPos;
			run = (long)who->xPos - (long)xPos;
			if ((rise * 2) < run)
			{
				newDirection = kFacingWest;
			}
			else if (rise > (run * 2))
			{
				newDirection = kFacingNorth;
			}
			else
			{
				newDirection = kFacingNorthWest;
			}
			break;
		case kFacingSouthEast:
			rise = (long)who->zPos - (long)zPos;
			run = (long)xPos - (long)who->xPos;
			if ((rise * 2) < run)
			{
				newDirection = kFacingEast;
			}
			else if (rise > (run * 2))
			{
				newDirection = kFacingSouth;
			}
			else
			{
				newDirection = kFacingSouthEast;
			}
			break;
		case kFacingSouthWest:
			rise = (long)who->zPos - (long)zPos;
			run = (long)who->xPos - (long)xPos;
			if ((rise * 2) < run)
			{
				newDirection = kFacingWest;
			}
			else if (rise > (run * 2))
			{
				newDirection = kFacingSouth;
			}
			else
			{
				newDirection = kFacingSouthWest;
			}
			break;
	}
	return (newDirection);
}


//========================================================  LookUpBoardForce  

void LookUpBoardForce (playerType *who)

{
	short			boardXForce, boardZForce;
	
	if ((who->justHitWall == 0) && (who->justHitOpponent == 0))
	{
		boardXForce = boardForceTable[who->direction][kXComponent];
		boardZForce = boardForceTable[who->direction][kZComponent];
		
		if (who->bashApplied)
		{
			boardXForce *= 4;								// 200% inc in board force