GliderPRO/Sources/Grease.c

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//============================================================================ //---------------------------------------------------------------------------- // Grease.c //---------------------------------------------------------------------------- //============================================================================ #include "Externs.h" #include "Environ.h" #include "MainWindow.h" #include "Objects.h" #include "RectUtils.h" #include "Room.h" #define kGreaseIdle 0 #define kGreaseFalling 1 #define kGreaseSpreading 2 #define kGreaseSpiltIdle 3 void BackupGrease (Rect *, short, Boolean); greasePtr grease; short numGrease; extern hotPtr hotSpots; extern savedType savedMaps[]; extern Point shieldPt; extern Rect greaseSrcRt[], greaseSrcLf[], shieldRect; //============================================================== Functions //-------------------------------------------------------------- HandleGrease // Goes through all grease objects currently on screen and handles<65> // them. If they're upright, nothing happens, but if they're in<69> // the course of falling or spilling, this function will handle<6C> // advancing the spill, etc. void HandleGrease (void) { Rect src; short i; if (numGrease == 0) return; for (i = 0; i < numGrease; i++) { if (grease[i].mode == kGreaseFalling) { grease[i].frame++; if (grease[i].frame >= 3) // grease completely tipped { grease[i].frame = 3; grease[i].mode = kGreaseSpreading; hotSpots[grease[i].hotNum].action = kSlideIt; hotSpots[grease[i].hotNum].isOn = true; if (grease[i].isRight) QSetRect(&src, 0, -2, 2, 0); else QSetRect(&src, -2, -2, 0, 0); QOffsetRect(&src, -playOriginH, -playOriginV); QOffsetRect(&src, grease[i].start, grease[i].dest.bottom); hotSpots[grease[i].hotNum].bounds = src; } QSetRect(&src, 0, 0, 32, 27); QOffsetRect(&src, 0, grease[i].frame * 27); CopyBits((BitMap *)*GetGWorldPixMap(savedMaps[grease[i].mapNum].map), (BitMap *)*GetGWorldPixMap(workSrcMap), &src, &grease[i].dest, srcCopy, nil); CopyBits((BitMap *)*GetGWorldPixMap(savedMaps[grease[i].mapNum].map), (BitMap *)*GetGWorldPixMap(backSrcMap), &src, &grease[i].dest, srcCopy, nil); AddRectToWorkRects(&grease[i].dest); if (grease[i].isRight) QOffsetRect(&grease[i].dest, 2, 0); else QOffsetRect(&grease[i].dest, -2, 0); } else if (grease[i].mode == kGreaseSpreading) { if (grease[i].isRight) { QSetRect(&src, 0, -2, 2, 0); QOffsetRect(&src, grease[i].start, grease[i].dest.bottom); grease[i].start += 2; hotSpots[grease[i].hotNum].bounds.right += 2; } else { QSetRect(&src, -2, -2, 0, 0); QOffsetRect(&src, grease[i].start, grease[i].dest.bottom); grease[i].start -= 2; hotSpots[grease[i].hotNum].bounds.left -= 2; } { CGrafPtr wasCPort; GDHandle wasWorld; GetGWorld(&wasCPort, &wasWorld); SetGWorld(backSrcMap, nil); PaintRect(&src); SetGWorld(workSrcMap, nil); PaintRect(&src); AddRectToWorkRects(&src); SetGWorld(wasCPort, wasWorld); } if (grease[i].isRight) { if (grease[i].start >= grease[i].stop) grease[i].mode = kGreaseSpiltIdle; } else { if (grease[i].start <= grease[i].stop) grease[i].mode = kGreaseSpiltIdle; } } } } //-------------------------------------------------------------- BackupGrease // This makes copies of the region of the screen the grease is about<75> // to be drawn to. It is called in the "set up" when a player has<61> // just entered a new room. The "grease jar falling over" animation<6F> // is set up here. void BackupGrease (Rect *src, short index, Boolean isRight) { Rect dest; short i; QSetRect(&dest, 0, 0, 32, 27); for (i = 0; i < 4; i++) { CopyBits((BitMap *)*GetGWorldPixMap(backSrcMap), (BitMap *)*GetGWorldPixMap(savedMaps[index].map), src, &dest, srcCopy, nil); if (isRight) { CopyMask((BitMap *)*GetGWorldPixMap(bonusSrcMap), (BitMap