/* Header file for ACK3D engine interface */ /* Author: Lary Myers */ typedef unsigned long ULONG; typedef unsigned int UINT; typedef unsigned char UCHAR; /*** Error codes returned from Ack... functions ***/ #define ERR_BADFILE 100 #define ERR_BADCOMMAND 101 #define ERR_BADOBJNUMBER 102 #define ERR_BADSYNTAX 103 #define ERR_LOADINGBITMAP 104 #define ERR_BADDIRECTION 105 #define ERR_BADSTARTX 106 #define ERR_BADSTARTY 107 #define ERR_BADANGLE 108 #define ERR_BADMAPFILE 109 #define ERR_READINGMAP 110 #define ERR_BADPICNAME 111 #define ERR_INVALIDFORM 112 #define ERR_NOPBM 113 #define ERR_BADPICFILE 114 #define ERR_NOMEMORY 115 #define ERR_BADPALFILE 116 #define ERR_BADWINDOWSIZE 117 #define ERR_TOMANYVIEWS 118 #define INT_ANGLE_1 5 #define INT_ANGLE_2 10 #define INT_ANGLE_4 20 #define INT_ANGLE_6 30 #define INT_ANGLE_30 160 #define INT_ANGLE_45 240 #define INT_ANGLE_90 480 #define INT_ANGLE_135 720 #define INT_ANGLE_180 960 #define INT_ANGLE_225 1200 #define INT_ANGLE_270 1440 #define INT_ANGLE_315 1680 #define INT_ANGLE_360 1920 #define GRID_SIZE 64 /* Size of each square */ #define GRID_WIDTH 64 /* Map width */ #define GRID_HEIGHT 64 /* Map height */ #define GRID_MAX GRID_WIDTH * GRID_HEIGHT #define GRID_XMAX GRID_WIDTH * GRID_SIZE #define GRID_YMAX GRID_HEIGHT * GRID_SIZE #define GRID_ARRAY (GRID_WIDTH+2) * (GRID_HEIGHT+2) #define MAX_WALLBMPS 256 /* Total wall bitmaps allowed */ #define MAX_OBJBMPS 256 /* Total obj bitmaps allowed */ #define MAX_OBJECTS 254 /* Total objects in map */ #define MAX_ZONES 8 /* Number of light zones */ #define PAL_SIZE 4096 /* Shading palette ranges */ #define MAX_VIEWS 47 /* Total sides to an object */ #define DEFAULT_DOOR_SPEED 2 #define MAX_DOORS 10 /* Max opening or closing at one time */ #define DOOR_TYPE_SECRET 0x8000 #define DOOR_LOCKED 0x4000 #define DOOR_TYPE_SLIDE 0x2000 #define DOOR_TYPE_SPLIT 0x1000 #define DOOR_XCODE 60 /* Map codes for the various doors */ #define DOOR_SIDECODE 61 #define DOOR_YCODE 62 #define TYPE_WALL 0 #define TYPE_OBJECT 1 #define OF_PASSABLE 0x80 /* Object can be walked thru */ #define OF_ANIMATE 0x40 /* Object bitmaps are animated */ #define SHADING_ON 1 /* Used in LightFlag */ #define SHADING_OFF 0 #define OBJECT_ACTIVE 1 /* Active and may be moveable */ #define OBJECT_INACTIVE 0 /* Won't be considered moveable */ #define POV_NOTHING 0 /* Nothing was hit */ #define POV_XWALL 1 /* An X wall was hit */ #define POV_YWALL 2 /* A Y wall was hit */ #define POV_OBJECT 3 /* An object was hit */ #define POV_PLAYER 4 /* The player was hit by object */ #define POV_NODOOR 0 /* No door was opened */ #define POV_XDOOR 1 /* An X door was opened */ #define POV_YDOOR 2 /* A Y door was opened */ #define POV_XSECRETDOOR 3 /* An X secret door was opened */ #define POV_YSECRETDOOR 4 /* A Y secret door was opened */ #define POV_DOORLOCKED 0x80 /* Bit on if door is locked */ typedef struct { char Active; UCHAR bmNum[MAX_VIEWS]; int Sides; int Dir; UCHAR Flags; UCHAR CurNum; UCHAR MaxNum; char Speed; int VidRow; int x; int y; int mPos; } OBJECTS; #define DOOR_OPENING 0x80 /* On if door is currently opening */ #define DOOR_CLOSING 0x40 /* On if door is currently closing */ typedef struct { int mPos; int mPos1; UINT mCode; UINT mCode1; UCHAR ColOffset; char Speed; char Type; UCHAR Flags; } DOORS; typedef struct { UINT far xGrid[GRID_ARRAY]; /* Map for X walls */ UINT far yGrid[GRID_ARRAY]; /* Map for Y walls */ UCHAR far *bMaps[MAX_WALLBMPS]; /* Pointers to wall bitmaps */ UCHAR far *oMaps[MAX_OBJBMPS]; /* Pointers to object bitmaps */ UCHAR far *ScreenBuffer; /* 64k buffer for screen */ UCHAR far *OverlayBuffer; /* Buffer for compiled overlay */ UCHAR far *BkgdBuffer; /* Buffer for ceiling,floor */ int xPlayer; /* X value from 0 to 4095 */ int yPlayer; /* Y value from 0 to 4095 */ int PlayerAngle; /* Angle value from 0 to 1919 */ int DoorSpeed; /* Door open/close speed */ int NonSecretCode; /* Wall code for secret door */ UCHAR TopColor; /* Base color of ceiling */ UCHAR BottomColor; /* Base color of floor */ UCHAR LightFlag; /* 0 = no light shading, 1 = ON */ UCHAR PalTable[PAL_SIZE]; /* 16 solid colors, 32 zones */ int WinStartX; /* Value of left side of viewport */ int WinStartY; /* Value of top side of viewport */ int WinEndX; /* Value of right side */ int WinEndY; /* Value of bottom side */ int CenterRow; /* Value of (WinEndY-WinStartY)/2 */ int WinWidth; /* Value of WinEndX - WinStartX */ int WinHeight; /* Value of WinEndY - WinStartY */ UINT WinLength; /* Number of dwords in window */ UINT WinStartOffset; /* Value of WinStartY * 320 */ int MaxObjects; /* Total objects in map */ OBJECTS ObjList[MAX_OBJECTS+1]; /* Current objects in map */ DOORS Door[MAX_DOORS]; /* Doors moving at one time */ } ACKENG; /******* Prototypes *********/ int AckInitialize(ACKENG *ae); /* Reads trig files, builds wall and object maps, general initialize */ /* Also sets up distance table */ int AckReadMapFile(ACKENG *ae,char *MapFileName); /* Reads map file and setups map grids */ int AckLoadBitmap(ACKENG *ae,int BitmapNumber,int BitmapType,char *bmFileName); /* Loads a bitmap and places in either bMaps or oMaps based on bmType */ UCHAR far *AckReadiff(char *FileName); /* Reads in a .LBM or .BBM file and returns a buffer */ int AckLoadAndSetPalette(char *FileName); /* Reads in a palette file and sets the screen palette */ void AckSetPalette(UCHAR far *PalBuffer); /* Sets a previously loaded palette */ int AckLoadWall(ACKENG *ae,int WallNumber,char *bmFileName); /* Loads a wall bitmap and places it into the wall array */ int AckLoadObject(ACKENG *ae,int BmpNumber,char *bmFileName); /* Loads an object bitmap and places it into the object array */ int AckCreateObject(ACKENG *ae,int ObjNumber,int NumBitmaps,UCHAR *bmNums); /* Fills in ObjList structure with information passed */ int AckCreateOverlay(ACKENG *ae, UCHAR far *OverlayScreen); /* Reads overlay file and compiles into OverlayBuffer */ int AckBuildBackground(ACKENG *ae); /* Builds background buffer from TopColor, BottomColor, and LightFlag */ void AckSetVGAmode(void); /* Places video in standard 320x200 mode 13h */ void AckSetTextmode(void); /* Places video in 80x25 color text mode 3 */ void AckFadeIn(int Begin,int Count,UCHAR far *Palette); /* Fades the screen in from black to the supplied palette */ void AckFadeOut(int Begin,int Count); /* Fades the screen from current palette to black */ int AckBuildView(ACKENG *ae); /* Draws the current view into ScreenBuffer */ void AckDrawOverlay(UCHAR far *Screen,UCHAR far *Overlay); /* Places the overlay graphics on top of the screen */ int AckDisplayScreen(ACKENG *ae); /* Displays the contents of ScreenBuffer and OverlayBuffer if desired */ int AckCheckHit(int xPlayer,int yPlayer,int ViewAngle,ACKENG *ae); /* Checks if a collision occurs */ int AckCheckDoorOpen(int xPlayer,int yPlayer,int PlayerAngle,ACKENG *ae); /* Check if a door in front to open */ int AckCheckObjPosn(ACKENG *ae,int xPlayer,int yPlayer,int PlayerAngle); /* Used by AckMovePOV() and AckMoveObjectPOV() to check collision with objects */ void AckCheckObjectMovement(ACKENG *ae); /* Runs the list of objects to check movement */ int AckMovePOV(ACKENG *ae,int Angle,int Amount); /* Moves the POV by the specified amount at the specified angle */ int AckMoveObjectPOV(ACKENG *ae,int ObjIndex,int Angle,int Amount); /* Moves the object POV by the specified amount at the specified angle */ int AckGetObjectHit(void); /* Returns the object index number of the last object hit */ int AckGetWallHit(void); /* Returns the map location of the last wall hit */ int AckDeleteObject(ACKENG *ae,int ObjectIndex); /* Removes the specified object from the map */ void AckReplaceBitmap(UINT far *xGrid,UINT far *yGrid,UCHAR OldBmp,UCHAR NewBmp); /* Runs through the map and replaces old bitmaps with new bitmaps */ void AckOverlayBitmap(UCHAR far *destination,UCHAR far *source); /* Copies non-transparent colors from source onto destination bitmap */ UCHAR far *AckCopyNewBitmap(UCHAR far *OldBitmap); /* Creates a new bitmap buffer and copies OldBitmap into it */ UCHAR far *AckGetBitmapPtr(int BitmapNumber,UCHAR far **Maps); /* Returns a real memory pointer to the specified bitmap */ int AckSetNewBitmapPtr(int BitmapNumber,UCHAR far **Maps,UCHAR far *NewBitmap); /* Sets a new or changes image into the bitmap array */ int AckFreeBitmap(UCHAR far *Bmp); /* Frees up the memory used by the bitmap */ int AckWrapUp(ACKENG *ae); /* Frees memory buffers */