#ifndef GS_ANIM #define GS_ANIM /* Custom blitter & collision detection structures: */ struct coll_bg_struct /* object to background collision struct */ { unsigned int mask; /* collision enable mask */ unsigned int area; /* collision area number */ unsigned short x1; /* x coord to check */ unsigned short y1; /* y coord to check */ struct coll_bg_struct *next; /* ptr to next coll_bg_struct for image */ }; struct collision_struct /* object to object collision struct */ { unsigned int type; /* type of collision area */ unsigned int mask; /* collision enable mask */ unsigned int area; /* collision area number */ unsigned short x1; /* left edge of area */ unsigned short y1; /* top edge of area */ unsigned short x2; /* right edge of area */ unsigned short y2; /* bottom edge of area */ struct collision_struct *next; /* ptr to next collision struct for image */ }; struct blit_struct { unsigned short *data; /* pointer to blitter image data */ unsigned short *mask; /* pointer to mask image */ unsigned short *save; /* pointer to image save area */ int depth; /* number of bit planes in image */ int planes; /* defines which planes to draw into */ int width; /* width of data image (in words) */ int height; /* height of data image (scan lines) */ int image_size; /* size (in bytes) of image (width * height) */ int x_off; /* X offset from left edge of image for placement */ int y_off; /* Y offset from top edge of image for placement */ int flags; /* blitter flags (see below) */ /* collision list ptr (null if no collision detect) */ /* for background gfx */ struct coll_bg_struct *coll_bg; /* collision list ptr (null if no collision detect) */ /* for anim object area detect */ struct collision_struct *collision; struct blit_struct *prev; /* ptr to previous image in an animation sequence */ struct blit_struct *next; /* ptr to the next image in an animation sequence */ int reserved[2]; /* reserved work/storage area for blitter routines */ }; /* the blitter flags */ #define BLIT_MERGE 0x01000000 /* don't clear unaffected planes */ #define BLIT_1SHOT_FORWARD 0x02000000 /* anim does not repeat when played forward */ #define BLIT_1SHOT_BACKWARD 0x04000000 /* anim does not repeat when played backward */ #define BLIT_DATACOPY 0x08000000 /* data is a copy area, don't free (internal use) */ #define BLIT_CPUBLIT 0x10000000 /* use CPU to blit image instead of blitter */ /* animation structures: */ struct anim_cplx { unsigned short cnt; /* number of anim sequences in the complex */ unsigned short seq; /* current anim sequence number (0 - n) */ unsigned short width; /* maximum width of complex (in bytes) */ unsigned short height; /* maximum height of complex (scan lines */ unsigned short array_num; /* array element number for duplicate complexes in an array */ unsigned short label; /* User label field/ID (actually a number) */ struct anim_struct *list; /* ptr to list of anim sequences */ struct anim_struct *anim; /* ptr to current anim obj on screen */ }; struct anim_struct { struct blit_struct *list; /* Ptr to 1st image in anim sequence */ struct blit_struct *img; /* Ptr to current image on screen */ struct anim_struct *attach; /* Ptr to next attached anim */ unsigned short array_num; /* array element number for duplicate anims in an array */ unsigned short label; /* User label field/ID (actually a number) */ unsigned short count; /* number of images in the anim sequence */ short x; /* Current X coord of image on screen */ short y; /* Current Y coord of image on screen */ short xa; /* Attached anim X offset from parent */ short ya; /* Attached anim Y offset from parent */ unsigned short width; /* Maximum width of image (in bytes) */ unsigned short height; /* Maximum height of image (in scan lines) */ unsigned short cell; /* Current cell number on screen (0 - nn) */ unsigned short prio; /* Image display priority */ unsigned long flags; /* Anim flags (see below) */ /* --------internal use-------- */ unsigned short shift1; /* Save area for blitter shift value */ unsigned short shift2; /* Save area for blitter shift value */ void *save1; /* Ptr to 1st background save area */ void *save2; /* Ptr to 2nd background save area */ unsigned int offset1; /* Screen offset for save area 1 */ unsigned int offset2; /* Screen offset for save area 2 */ unsigned int savsiz; /* Size of save area (number of bytes) */ struct blit_struct *image1; /* Ptr to image displayed in area 1 */ struct blit_struct *image2; /* Ptr to image displayed in area 2 */ struct anim_struct *collide; /* Ptr to colliding anim */ struct anim_struct *prev; /* Ptr to previous anim obj in animation system */ struct anim_struct *next; /* Ptr to next anim obj in animation system */ struct anim_struct *cplx_next; /* Ptr to next anim obj in anim complex */ struct anim_cplx *cplx; /* Ptr to anim_cplx that this obj belongs to */ }; /* The anim flags: */ #define ANIM_SAVE_BG 0x01000000 /* Flag: save background before blitting image */ #define ANIM_COLLISION 0x02000000 /* Flag: Obj to obj collision detection enable */ #define ANIM_ACTIVE 0x20000000 /* Anim is active in a display system */ #define ANIM_INVISIBLE 0x40000000 /* Flag: made invisible by clear_anim */ #define ANIM_ONSCREEN 0x80000000 /* Anim is displayed on screen */ #define ANIM_CLEAR 0x00010000 /* Flag: if NOT ANIM_SAVE_BG, clear blitter */ /* image before blitting image */ #define ANIM_COPY 0x00020000 /* Flag: use blit_copy instead of blit_image */ #define ANIM_REVERSE 0x00040000 /* Anim is running in reverse */ #define ANIM_PARENT 0x00080000 /* Flag: Anim is a parent with attached anims */ #define ANIM_MERGE 0x00100000 /* Flag: Merge image data with that on screen */ #define ANIM_FLICKER 0x00200000 /* Flag: Display object only on 1st bitmap */ #define ANIM_COLLISION_BG 0x00400000 /* Flag: Obj to background collision enable */ #define ANIM_IMGCOPY 0x00800000 /* Flag: anim uses copy of images, don't free (internal use) */ #define ANIM_BOUNDS_X1 0x00000100 /* anim obj tried to move past left edge of bounds */ #define ANIM_BOUNDS_Y1 0x00000200 /* anim obj tried to move past top edge of bounds */ #define ANIM_BOUNDS_X2 0x00000400 /* anim obj tried to move past right edge of bounds */ #define ANIM_BOUNDS_Y2 0x00000800 /* anim obj tried to move past bottom edge of bounds */ #define ANIM_CPUBLIT 0x00001000 /* CPU used to blit images in this anim */ #define ANIM_VSPACE 0x00002000 /* object lies in virtual space */ #define ANIM_VCOLLIDE 0x00004000 /* allow object-to-object collisions in virtual space */ struct anim_attach /* undefined until next release */ { int dummy; }; struct anim_load_struct /* structure for loading binary anim objects from disk */ { char *filename; /* pointer to ASCIIZ string of file to load (user defined) */ union { struct anim_struct *anim; /* pointer to anim struct if file is a simple anim (filled) */ struct anim_cplx *cplx; /* pointer to an anim cplx struct if file is a complex anim (filled) */ } anim_ptr; struct anim_attach *attach; /* ptr to attachment array specification (filled) */ unsigned long *cmap; /* pointer to an array of color map entries (filled) */ int cmap_entries; /* number of color table entries (filled) */ int cmap_size; /* number of bits per color value (4 or 8) (user defined) */ int type; /* type 0 = anim, type 1 = complex anim (filled) */ int array_elements; /* size of array to create from loaded object (1 - n) (user defined) */ unsigned long flags; /* load flags. Set ONLY user bits. Some used by CITAS */ }; /* The user anim load bits */ #define ANIMLOAD_NOCOLOR 0x00000001 /* don't load color table */ #define ANIMLOAD_FASTRAM 0x00000002 /* load anim to Fast RAM if available */ #define ANIMLOAD_NOFASTRAM 0x00000004 /* don't use Fast RAM even if flagged in file */ /* save area allocation flags */ #define SINGLE_BUFF 0x00 /* object will be used in a single buffered display */ #define DOUBLE_BUFF 0x01 /* object will be used in a double buffered display */ #endif