GliderPRO/Sources/Dynamics2.c

//============================================================================
//----------------------------------------------------------------------------
//								   Dynamics2.c
//----------------------------------------------------------------------------
//============================================================================


#include "Externs.h"
#include "RectUtils.h"


#define kBalloonStop		8
#define kBalloonStart		310
#define kCopterStart		8
#define kCopterStop			310
#define kDartVelocity		6
#define kDartStop			310
#define kEnemyDropSpeed		8


extern	dynaPtr		dinahs;
extern	short		numBands;
extern	Boolean		evenFrame, twoPlayerGame, onePlayerLeft, playerDead;


//==============================================================  Functions
//--------------------------------------------------------------  HandleBalloon

void HandleBalloon (short who)
{
	Rect		dest;
	
	if (dinahs[who].moving)
	{
		if (dinahs[who].vVel < 0)
		{
			if (evenFrame)
			{
				dinahs[who].frame++;
				if (dinahs[who].frame >= 6)
					dinahs[who].frame = 0;
			}
			if (twoPlayerGame)
			{
				if (onePlayerLeft)
				{
					if (playerDead == theGlider.which)
						CheckDynamicCollision(who, &theGlider2, false);
					else
						CheckDynamicCollision(who, &theGlider, false);
				}
				else
				{
					CheckDynamicCollision(who, &theGlider, false);
					CheckDynamicCollision(who, &theGlider2, false);
				}
			}
			else
				CheckDynamicCollision(who, &theGlider, false);
			
			if ((numBands > 0) && (DidBandHitDynamic(who)))
			{
				dinahs[who].frame = 6;
				dinahs[who].vVel = kEnemyDropSpeed;
				PlayPrioritySound(kPopSound, kPopPriority);
			}
			else
			{
				VOffsetRect(&dinahs[who].dest, dinahs[who].vVel);
				dinahs[who].whole = dinahs[who].dest;
				dinahs[who].whole.bottom -= dinahs[who].vVel;
			}
		}
		else
		{
			if (evenFrame)
			{
				dinahs[who].frame++;
				if (dinahs[who].frame >= 8)
					dinahs[who].frame = 6;
			}
			
			VOffsetRect(&dinahs[who].dest, dinahs[who].vVel);
			dinahs[who].whole = dinahs[who].dest;
			dinahs[who].whole.top -= dinahs[who].vVel;
		}
		
		if ((dinahs[who].dest.top <= kBalloonStop) || 
				(dinahs[who].dest.bottom >= kBalloonStart))
		{
			dest = dinahs[who].whole;
			QOffsetRect(&dest, playOriginH, playOriginV);
			AddRectToWorkRects(&dest);
			dest = dinahs[who].dest;
			AddSparkle(&dest);
			PlayPrioritySound(kEnemyOutSound, kEnemyOutPriority);
			dinahs[who].moving = false;
			dinahs[who].vVel = -2;
			dinahs[who].timer = dinahs[who].count;
			dinahs[who].dest.bottom = kBalloonStart;
			dinahs[who].dest.top = dinahs[who].dest.bottom - 
					RectTall(&balloonSrc[0]);
			dinahs[who].whole = dinahs[who].dest;
		}
	}
	else		// balloon is idle, waiting to appear
	{
		if (dinahs[who].active)
		{
			dinahs[who].timer--;
			if (dinahs[who].timer <= 0)
			{
				dinahs[who].moving = true;
				if (dinahs[who].count < kStartSparkle)
				{
					dest = dinahs[who].dest;
					AddSparkle(&dest);
					PlayPrioritySound(kEnemyInSound, kEnemyInPriority);
				}
			}
			else if (dinahs[who].timer == kStartSparkle)
			{
				dest = dinahs[who].dest;
				AddSparkle(&dest);
				PlayPrioritySound(kEnemyInSound, kEnemyInPriority);
			}
		}
	}
}

//--------------------------------------------------------------  HandleCopter

void HandleCopter (short who)
{
	Rect		dest;
	
	if (dinahs[who].moving)					// is 'copter about?
	{
		if (dinahs[who].hVel != 0)			// 'copter was not shot
		{
			dinahs[who].frame++;
			if (dinahs[who].frame >= 8)
				dinahs[who].frame = 0;
			if (twoPlayerGame)
			{
				if (onePlayerLeft)
				{
					if (playerDead == theGlider.which)
						CheckDynamicCollision(who, &theGlider2, false);
					else
						CheckDynamicCollision(who, &theGlider, false);
				}
				else
				{
					CheckDynamicCollision(who, &theGlider, false);
					CheckDynamicCollision(who, &theGlider2, false);
				}
			}
			else
				CheckDynamicCollision(who, &theGlider, false);
			if ((numBands > 0) && (DidBandHitDynamic(who)))
			{
				dinahs[who].frame = 8;
				dinahs[who].hVel = 0;
				dinahs[who].vVel = kEnemyDropSpeed;
				PlayPri