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reverted spiral routine as the new implementation had no dispappearing animation

feature/2015
Christian Kroll 13 years ago
parent
commit
f0c8d17bb4
  1. 51
      animations/programm.c

51
animations/programm.c

@ -47,22 +47,45 @@ void test_palette2(){
#ifdef ANIMATION_SPIRALE #ifdef ANIMATION_SPIRALE
void spirale(int delay) { static void walk(cursor_t* cur, unsigned char steps, unsigned int delay){
unsigned char x;
for(x=steps;x--;){
set_cursor(cur, next_pixel(cur->pos, cur->dir));
wait(delay);
}
}
void spirale(unsigned int delay){
clear_screen(0); clear_screen(0);
static signed char const delta[5] PROGMEM = {0, -1, 0, 1, 0};
unsigned char length[2] = {NUM_ROWS, NUM_COLS - 1}; cursor_t cur;
unsigned char x = NUM_COLS - 1, y = NUM_ROWS; cur.dir = right;
unsigned char i = 0; cur.mode = set;
set_cursor (&cur, (pixel){NUM_COLS-1,0});
while (length[i & 0x01] != 0) {
for (unsigned char j = 0; j < length[i & 0x01]; ++j) { unsigned char clearbit=0;
x += pgm_read_byte(&delta[i]); while(clearbit == 0){
y += pgm_read_byte(&delta[i + 1]);
setpixel((pixel){x, y}, 3); clearbit = 1;
wait(delay); while (!get_next_pixel(cur.pos, cur.dir)){
clearbit = 0;
walk(&cur, 1, delay);
}
cur.dir = direction_r(cur.dir);
}
cur.mode = clear;
set_cursor(&cur, (pixel){(NUM_COLS/2)-1,(NUM_ROWS/2)-1});
for(clearbit=0;clearbit==0;){
if( get_next_pixel(cur.pos, direction_r(cur.dir)) ){
cur.dir = direction_r(cur.dir);
}
if( get_next_pixel(cur.pos, cur.dir) == 1 ){
walk(&cur , 1, delay);
}else{
clearbit = 1;
} }
length[i++ & 0x01]--;
i %= 4;
} }
} }
#endif #endif

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