GliderPRO/Sources/Dynamics.c

//============================================================================
//----------------------------------------------------------------------------
//								   Dynamics.c
//----------------------------------------------------------------------------
//============================================================================


#include "Externs.h"
#include "Environ.h"
#include "MainWindow.h"
#include "Objects.h"
#include "RectUtils.h"
#include "Room.h"


#define kShoveVelocity		8


Rect		breadSrc[kNumBreadPicts];

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


//==============================================================  Functions
//--------------------------------------------------------------  CheckDynamicCollision

// Checks for a collision betwen the glider and one of the dynamic objects.
// For example, did the glider hit a flying piece of toast?

void CheckDynamicCollision (short who, gliderPtr thisGlider, Boolean doOffset)
{
	Rect		dinahRect;
	
	dinahRect = dinahs[who].dest;
	if (doOffset)
		QOffsetRect(&dinahRect, -playOriginH, -playOriginV);
	
	if (SectGlider(thisGlider, &dinahRect, true))
	{
		if ((thisGlider->mode == kGliderNormal) || 
				(thisGlider->mode == kGliderFaceLeft) || 
				(thisGlider->mode == kGliderFaceRight) || 
				(thisGlider->mode == kGliderBurning) || 
				(thisGlider->mode == kGliderGoingFoil) || 
				(thisGlider->mode == kGliderLosingFoil))
		{
			if ((foilTotal > 0) || (thisGlider->mode == kGliderLosingFoil))
			{
				if (IsRectLeftOfRect(&dinahRect, &thisGlider->dest))
					thisGlider->hDesiredVel = kShoveVelocity;
				else
					thisGlider->hDesiredVel = -kShoveVelocity;
				if (dinahs[who].vVel < 0)
					thisGlider->vDesiredVel = dinahs[who].vVel;
				PlayPrioritySound(kFoilHitSound, kFoilHitPriority);
				if ((evenFrame) && (foilTotal > 0))
				{
					foilTotal--;
					if (foilTotal <= 0)
						StartGliderFoilLosing(thisGlider);
				}
			}
			else
			{
				StartGliderFadingOut(thisGlider);
				PlayPrioritySound(kFadeOutSound, kFadeOutPriority);
			}
		}
	}
}

//--------------------------------------------------------------  DidBandHitDynamic

// Checks to see if a rubber band struck a dynamic.

Boolean DidBandHitDynamic (short who)
{
	Rect		dinahRect;
	short		i;
	Boolean		collided;
	
	dinahRect = dinahs[who].dest;
	
	for (i = 0; i < numBands; i++)
	{
		if (bands[i].dest.bottom < dinahRect.top)
			collided = false;
		else if (bands[i].dest.top > dinahRect.bottom)
			collided = false;
		else if (bands[i].dest.right < dinahRect.left)
			collided = false;
		else if (bands[i].dest.left > dinahRect.right)
			collided = false;
		else
			collided = true;
		
		if (collided)
			break;
	}
	
	return (collided);
}

//--------------------------------------------------------------  RenderToast

// The following handful of functions handle drawing specific "dynamic" objecsts.

void RenderToast (short who)
{
	Rect		src, dest;
	short		vClip;
	
	if (dinahs[who].moving)
	{
		dest = dinahs[who].dest;
		QOffsetRect(&dest, playOriginH, playOriginV);
		src = breadSrc[dinahs[who].frame];
		vClip = dinahs[who].dest.bottom - dinahs[who].hVel;
		if (vClip > 0)
		{
			src.bottom -= vClip;
			dest.bottom -= vClip;
		}
		
		CopyMask((BitMap *)*GetGWorldPixMap(toastSrcMap), 
				(BitMap *)*GetGWorldPixMap(toastMaskMap), 
				(BitMap *)*GetGWorldPixMap(workSrcMap), 
				&src, &src, &dest);
		
		AddRectToBackRects(&dest);
		dest = dinahs[who].whole;
		QOffsetRect(&dest, playOriginH, playOriginV);
		AddRectToWorkRects(&dest);
	}
}

//--------------------------------------------------------------  RenderBalloon

void RenderBalloon (short who)
{
	Rect		src, dest;
	
	if (dinahs[who].moving)
	{
		dest = dinahs[who].dest;
		QOffsetRect(&dest, playOriginH, playOriginV);
		src = balloonSrc[dinahs[who].frame];
		
		CopyMask((BitMap *)*GetGWorldPixMap(balloonSrcMap), 
				(BitMap *)*GetGWorldPixMap(balloonMaskMap), 
				(BitMap *)*GetGWorldPixMap(workSrcMap), 
				&src, &src, &dest);
		
		AddRectTo