mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-09-19 21:32:58 +00:00
121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
#include "include/wgtspr.h"
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#include "include/mem.h"
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#include "include/multicore.h"
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// ######## REQUIRED FUNCTIONS ########
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unsigned long state0 = 1000;
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unsigned long state1 = 2000;
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unsigned long rand(void)
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{
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unsigned long s1 = state0;
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unsigned long s0 = state1;
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state0 = s0;
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s1 ^= s1 << 23;
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s1 ^= s1 >> 17;
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s1 ^= s0;
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s1 ^= s0 >> 26;
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state1 = s1;
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return state0 + state1;
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}
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// ######## STUB FUNCTIONS ########
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unsigned int kb = 0;
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unsigned int kbhit(void) {
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kb++;
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return kb / 500;
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}
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void getch(void) {
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wait_msec(0x500000);
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kb = 0;
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}
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// ######## WGT EXAMPLES ########
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#define SPRITES_IN_FILE 20 /* We're loading 20 sprites */
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int i; /* Generic counter */
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color palette[256]; /* Our palette */
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block sprites[SPRITES_IN_FILE+1]; /* Pointers to sprites */
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int quit; /* if quit !=0, program quits */
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void looper (void); /* Function to move cursor */
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void wgt23()
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{
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set_clock_rate(get_max_clock());
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mem_init();
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vga256 ();
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start_core2(minit); // Start the comms engine (core 2)
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while (!comms_up); // Wait for comms up
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/* Load our sprites from the file. Palette is loaded too */
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extern unsigned char _binary_bin_mouse_spr_start[];
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wloadsprites (palette, &_binary_bin_mouse_spr_start[0], sprites, 0, SPRITES_IN_FILE);
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wsetpalette (0, 255, palette);
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/* Initialize the WGT sprite system */
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initialize_sprites (sprites);
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maxsprite = 1; /* number of sprites on */
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for (i = 0; i < 200; i++) /* draw a background */
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{
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wsetcolor (vgapal[i]);
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wline (0, i, 159, i);
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wline (160, 199 - i, 319, 199 - i);
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}
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wcopyscreen (0, 0, 319, 199, NULL, 0, 0, backgroundscreen);
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wcopyscreen (0, 0, 319, 199, NULL, 0, 0, spritescreen);
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/* when using sprites, whatever is on the visual page must be on
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spritescreen too! */
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/* Also, you must make sure you turn a sprite on AFTER you draw
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the background or it will leave a black spot where the sprite
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is first shown. */
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wsetscreen (spritescreen);
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spriteon (1, 160, 100, 1); /* turn on any sprites */
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animate (1, "(1,30)(2,30)(3,30)(4,30)(3,30)(2,30)R");
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animon (1);
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/* animate the sprite */
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do {
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looper (); /* Position cursor where mouse is */
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} while (!quit);
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spriteoff (1); /* turn off sprites */
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/* To be safe, turn off all sprites before ending your program.
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This will free any memory used from them. */
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deinitialize_sprites ();
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mdeinit (); /* Deinitialize the mouse handler */
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wfreesprites (sprites, 0, SPRITES_IN_FILE); /* free memory */
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}
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void looper (void)
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{
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erase_sprites(); /* clear the sprites */
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s[1].x = mx; /* any direct sprite movements must be placed */
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s[1].y = my; /* between erasespr and drawspr */
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/* This will place sprite number 1 where the mouse cursor is. */
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draw_sprites (1); /* draw them back on */
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wait_msec(0x3E9F);
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if (but)
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quit = 1;
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}
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void main()
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{
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wgt23();
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while (1);
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}
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