mirror of
https://github.com/isometimes/rpi4-osdev
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68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
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#include "wgt.h"
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/* The following defines should be altered to suit your program needs */
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#define MAX_SPRITES 100
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#define MAX_ANIMATION 40
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#define MAX_MOVE 15
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typedef struct
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{
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unsigned char num; /* Sprite number shown */
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short x, y; /* Coordinates on screen */
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unsigned char on; /* On/Off, for visibility */
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int ox, oy, ox2, oy2;
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signed char animon; /* Animation on/off */
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short animation_images[MAX_ANIMATION]; /* Animation numbers */
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unsigned char animation_speeds[MAX_ANIMATION]; /* Animation speeds */
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signed char current_animation; /* Current animation counter */
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unsigned char animation_count; /* Delay count for animation */
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signed char movex_on; /* X movement on/off */
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short movex_distance[MAX_MOVE]; /* X distance per frame */
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short movex_number[MAX_MOVE]; /* Number of times to move */
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unsigned char movex_speed[MAX_MOVE]; /* Delay between each movement */
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signed char current_movex; /* Movement index */
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short current_movex_number; /* Number of times moved */
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unsigned char movex_count; /* Delay count for X movement */
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signed char movey_on; /* Y movement on/off */
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short movey_distance[MAX_MOVE]; /* Y distance per frame */
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short movey_number[MAX_MOVE]; /* Number of times to move */
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unsigned char movey_speed[MAX_MOVE]; /* Delay between each movement */
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signed char current_movey; /* Movement index */
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short current_movey_number; /* Number of times moved */
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unsigned char movey_count; /* Delay count for Y movement */
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} sprite_object;
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extern sprite_object s[MAX_SPRITES];
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extern block backgroundscreen; /* Holds the constant background */
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extern block spritescreen; /* Work buffer */
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extern short maxsprite;
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extern short tempx1, tempx2, tempy1, tempy2;
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extern block *sprite_images;
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void animate (short spritenum, char *animation_sequence);
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void animoff (short spritenum);
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void animon (short spritenum);
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void copy_sprites (void);
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void deinitialize_sprites (void);
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void draw_sprites (int movement_multiplier);
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void erase_sprites (void);
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void expand_dirty_rectangle (int sprite_num, int x, int y, int x2, int y2);
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void initialize_sprites (block *sprite_blocks);
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void movex (short spritenum, char *movement_sequence);
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void movexoff (short spritenum);
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void movexon (short spritenum);
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void movey (short spritenum, char *movement_sequence);
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void moveyoff (short spritenum);
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void moveyon (short spritenum);
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short overlap (short spritenum_1, short spritenum_2);
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void spriteoff (short spritenum);
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void spriteon (short spritenum, short xcoord, short ycoord, short arrnumber);
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