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elasota
302
GpApp/Grease.cpp
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302
GpApp/Grease.cpp
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//============================================================================
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//----------------------------------------------------------------------------
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// Grease.c
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//----------------------------------------------------------------------------
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//============================================================================
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#include "Externs.h"
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#include "Environ.h"
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#include "MainWindow.h"
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#include "Objects.h"
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#include "RectUtils.h"
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#include "Room.h"
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#define kGreaseIdle 0
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#define kGreaseFalling 1
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#define kGreaseSpreading 2
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#define kGreaseSpiltIdle 3
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void BackupGrease (Rect *, short, Boolean);
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greasePtr grease;
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short numGrease;
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extern hotPtr hotSpots;
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extern savedType savedMaps[];
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extern Point shieldPt;
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extern Rect greaseSrcRt[], greaseSrcLf[], shieldRect;
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//============================================================== Functions
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//-------------------------------------------------------------- HandleGrease
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// Goes through all grease objects currently on screen and handles<65>
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// them. If they're upright, nothing happens, but if they're in<69>
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// the course of falling or spilling, this function will handle<6C>
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// advancing the spill, etc.
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void HandleGrease (void)
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{
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Rect src;
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short i;
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if (numGrease == 0)
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return;
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for (i = 0; i < numGrease; i++)
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{
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if (grease[i].mode == kGreaseFalling)
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{
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grease[i].frame++;
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if (grease[i].frame >= 3) // grease completely tipped
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{
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grease[i].frame = 3;
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grease[i].mode = kGreaseSpreading;
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hotSpots[grease[i].hotNum].action = kSlideIt;
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hotSpots[grease[i].hotNum].isOn = true;
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if (grease[i].isRight)
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QSetRect(&src, 0, -2, 2, 0);
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else
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QSetRect(&src, -2, -2, 0, 0);
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QOffsetRect(&src, -playOriginH, -playOriginV);
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QOffsetRect(&src, grease[i].start, grease[i].dest.bottom);
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hotSpots[grease[i].hotNum].bounds = src;
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}
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QSetRect(&src, 0, 0, 32, 27);
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QOffsetRect(&src, 0, grease[i].frame * 27);
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CopyBits((BitMap *)*GetGWorldPixMap(savedMaps[grease[i].mapNum].map),
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(BitMap *)*GetGWorldPixMap(workSrcMap),
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&src, &grease[i].dest,
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srcCopy, nil);
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CopyBits((BitMap *)*GetGWorldPixMap(savedMaps[grease[i].mapNum].map),
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(BitMap *)*GetGWorldPixMap(backSrcMap),
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&src, &grease[i].dest,
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srcCopy, nil);
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AddRectToWorkRects(&grease[i].dest);
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if (grease[i].isRight)
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QOffsetRect(&grease[i].dest, 2, 0);
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else
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QOffsetRect(&grease[i].dest, -2, 0);
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}
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else if (grease[i].mode == kGreaseSpreading)
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{
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if (grease[i].isRight)
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{
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QSetRect(&src, 0, -2, 2, 0);
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QOffsetRect(&src, grease[i].start, grease[i].dest.bottom);
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grease[i].start += 2;
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hotSpots[grease[i].hotNum].bounds.right += 2;
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}
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else
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{
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QSetRect(&src, -2, -2, 0, 0);
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QOffsetRect(&src, grease[i].start, grease[i].dest.bottom);
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grease[i].start -= 2;
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hotSpots[grease[i].hotNum].bounds.left -= 2;
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}
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{
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CGrafPtr wasCPort;
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GDHandle wasWorld;
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GetGWorld(&wasCPort, &wasWorld);
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SetGWorld(backSrcMap, nil);
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PaintRect(&src);
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SetGWorld(workSrcMap, nil);
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PaintRect(&src);
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AddRectToWorkRects(&src);
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SetGWorld(wasCPort, wasWorld);
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}
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if (grease[i].isRight)
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{
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if (grease[i].start >= grease[i].stop)
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grease[i].mode = kGreaseSpiltIdle;
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}
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else
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{
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if (grease[i].start <= grease[i].stop)
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grease[i].mode = kGreaseSpiltIdle;
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}
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}
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}
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}
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//-------------------------------------------------------------- BackupGrease
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// This makes copies of the region of the screen the grease is about<75>
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// to be drawn to. It is called in the "set up" when a player has<61>
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// just entered a new room. The "grease jar falling over" animation<6F>
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// is set up here.
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void BackupGrease (Rect *src, short index, Boolean isRight)
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{
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Rect dest;
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short i;
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QSetRect(&dest, 0, 0, 32, 27);
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for (i = 0; i < 4; i++)
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{
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CopyBits((BitMap *)*GetGWorldPixMap(backSrcMap),
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(BitMap *)*GetGWorldPixMap(savedMaps[index].map),
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src, &dest, srcCopy, nil);
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if (isRight)
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{
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CopyMask((BitMap *)*GetGWorldPixMap(bonusSrcMap),
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(BitMap *)*GetGWorldPixMap(bonusMaskMap),
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(BitMap *)*GetGWorldPixMap(savedMaps[index].map),
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&greaseSrcRt[i], &greaseSrcRt[i], &dest);
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QOffsetRect(src, 2, 0);
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}
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else
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{
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CopyMask((BitMap *)*GetGWorldPixMap(bonusSrcMap),
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(BitMap *)*GetGWorldPixMap(bonusMaskMap),
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(BitMap *)*GetGWorldPixMap(savedMaps[index].map),
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&greaseSrcLf[i], &greaseSrcLf[i], &dest);
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QOffsetRect(src, -2, 0);
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}
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QOffsetRect(&dest, 0, 27);
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}
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}
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//-------------------------------------------------------------- ReBackUpGrease
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// Just like th eabove function but it is called while the player is<69>
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// active in a room and has changed the lighting situation (like turned<65>
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// off or on the lights). It assumes certain data strucutures are<72>
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// already declared from an earlier call to the above funciton.
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short ReBackUpGrease (short where, short who)
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{
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Rect src;
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short i;
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for (i = 0; i < numGrease; i++)
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{
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if ((grease[i].where == where) && (grease[i].who == who))
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{
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if ((grease[i].mode == kGreaseIdle) || (grease[i].mode == kGreaseFalling))
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{
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src = grease[i].dest;
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BackupGrease(&src, grease[i].mapNum, grease[i].isRight);
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}
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return (i);
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}
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}
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return (-1);
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}
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//-------------------------------------------------------------- AddGrease
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// Called when a new room is being set up during a game. This adds<64>
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// another jar of grease to the queue of jars to be handled.
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short AddGrease (short where, short who, short h, short v,
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short distance, Boolean isRight)
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{
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Rect src, bounds;
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short savedNum;
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if (numGrease >= kMaxGrease)
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return (-1);
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QSetRect(&src, 0, 0, 32, 27);
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QOffsetRect(&src, h, v);
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QSetRect(&bounds, 0, 0, 32, 27 * 4);
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savedNum = BackUpToSavedMap(&bounds, where, who);
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if (savedNum != -1)
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{
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BackupGrease (&src, savedNum, isRight);
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if (isRight)
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QOffsetRect(&src, -8, 0);
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else
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QOffsetRect(&src, 8, 0);
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grease[numGrease].who = who;
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grease[numGrease].where = where;
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grease[numGrease].dest = src;
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grease[numGrease].mapNum = savedNum;
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grease[numGrease].mode = kGreaseIdle;
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grease[numGrease].frame = -1;
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if (isRight)
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{
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grease[numGrease].isRight = true;
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grease[numGrease].start = src.right + 4;
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grease[numGrease].stop = src.right + distance;
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}
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else
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{
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grease[numGrease].isRight = false;
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grease[numGrease].start = src.left - 4;
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grease[numGrease].stop = src.left - distance;
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}
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numGrease++;
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return (numGrease - 1);
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}
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else
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return (-1);
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}
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//-------------------------------------------------------------- SpillGrease
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// A player has knocked a jar of grease over - this function flags that.
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void SpillGrease (short who, short index)
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{
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if (grease[who].mode == kGreaseIdle)
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{
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grease[who].mode = kGreaseFalling;
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grease[who].hotNum = index;
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PlayPrioritySound(kGreaseSpillSound, kGreaseSpillPriority);
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}
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}
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//-------------------------------------------------------------- RedrawAllGrease
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// Called to redraw all the black lines of spilt grease.
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void RedrawAllGrease (void)
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{
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CGrafPtr wasCPort;
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GDHandle wasWorld;
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Rect src;
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short i;
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if (numGrease == 0)
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return;
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for (i = 0; i < numGrease; i++)
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{
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src = hotSpots[grease[i].hotNum].bounds;
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if ((grease[i].where == thisRoomNumber) &&
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((src.bottom - src.top) == 2) &&
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(grease[i].mode != kGreaseIdle))
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{
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QOffsetRect(&src, playOriginH, playOriginV);
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GetGWorld(&wasCPort, &wasWorld);
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SetGWorld(backSrcMap, nil);
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PaintRect(&src);
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SetGWorld(workSrcMap, nil);
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PaintRect(&src);
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AddRectToWorkRects(&src);
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SetGWorld(wasCPort, wasWorld);
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}
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}
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}
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