mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-13 22:00:40 +00:00
118 lines
3 KiB
C
118 lines
3 KiB
C
#include "include/wgtspr.h"
|
|
#include "include/mem.h"
|
|
#include "include/multicore.h"
|
|
|
|
// ######## REQUIRED FUNCTIONS ########
|
|
|
|
unsigned long state0 = 1000;
|
|
unsigned long state1 = 2000;
|
|
|
|
unsigned long rand(void)
|
|
{
|
|
unsigned long s1 = state0;
|
|
unsigned long s0 = state1;
|
|
|
|
state0 = s0;
|
|
s1 ^= s1 << 23;
|
|
s1 ^= s1 >> 17;
|
|
s1 ^= s0;
|
|
s1 ^= s0 >> 26;
|
|
state1 = s1;
|
|
|
|
return state0 + state1;
|
|
}
|
|
|
|
// ######## STUB FUNCTIONS ########
|
|
|
|
unsigned int kb = 0;
|
|
|
|
unsigned int kbhit(void) {
|
|
kb++;
|
|
return kb / 500;
|
|
}
|
|
|
|
void getch(void) {
|
|
wait_msec(0x500000);
|
|
kb = 0;
|
|
}
|
|
|
|
// ######## WGT EXAMPLES ########
|
|
|
|
#define SPRITES_IN_FILE 50
|
|
|
|
color palette[256];
|
|
block sprites[SPRITES_IN_FILE+1];
|
|
void looper (void); /* a routine which controls the sprites */
|
|
|
|
void wgt22()
|
|
{
|
|
set_clock_rate(get_max_clock());
|
|
mem_init();
|
|
vga256 (); /* Initializes WGT system */
|
|
|
|
start_core2(minit); // Start the comms engine (core 2)
|
|
while (!comms_up); // Wait for comms up
|
|
|
|
extern unsigned char _binary_bin_invader_spr_start[];
|
|
wloadsprites (palette, &_binary_bin_invader_spr_start[0], sprites, 0, SPRITES_IN_FILE);
|
|
/* load first 50 sprites */
|
|
wsetpalette (0, 255, palette);
|
|
|
|
initialize_sprites (sprites); /* initialize them */
|
|
maxsprite = 10; /* number of sprites on */
|
|
|
|
/* Spriteon has the following format:
|
|
Sprite number, x coord, y coord, sprite number in array of sprites
|
|
Therefore sprite #1 would be displayed at 160,150 with sprite 1 in the array */
|
|
|
|
spriteon (1, 160, 100, 1); /* turn on any sprites */
|
|
spriteon (2, 10, 100, 3); /* you need */
|
|
|
|
/* This move will go left 1, for 300 times, and right 1 for 300 times,
|
|
and repeat */
|
|
|
|
movex (2, "(1,300,0)(-1,300,0)R"); /* set up any movement */
|
|
movexon (2); /* or animation needed */
|
|
|
|
/* This animation will animate sprite 2 through a sequence of sprites
|
|
in the sprite array and keep repeating. */
|
|
|
|
animate (2,"(3,50)(4,50)(5,50)(4,50)R");
|
|
animon (2);
|
|
|
|
do {
|
|
looper ();
|
|
} while (1);
|
|
|
|
spriteoff (1); /* turn off sprites */
|
|
spriteoff (2);
|
|
/* To be safe, turn off all sprites before ending program.
|
|
This will free any memory used from them. */
|
|
|
|
wfreesprites (sprites, 0, SPRITES_IN_FILE); /* free memory */
|
|
|
|
mdeinit();
|
|
deinitialize_sprites ();
|
|
}
|
|
|
|
void looper (void)
|
|
{
|
|
erase_sprites (); /* clear the sprites */
|
|
|
|
s[1].x = mx; /* any direct sprite movements must be placed */
|
|
s[1].y = my; /* between erase_sprites and draw_sprites */
|
|
/* This will set sprite one's coordinate to the mouse
|
|
coordinates. Move it around! */
|
|
/* notice how sprite #2 moves and animates on its own now!
|
|
You don't need to change anything to make it move! */
|
|
|
|
draw_sprites (1); /* draw them back on */
|
|
wait_msec(0x3E9F); /* Try removing this to see how fast the
|
|
sprite engine really is */
|
|
}
|
|
|
|
void main()
|
|
{
|
|
wgt22();
|
|
while (1);
|
|
}
|