void clear_playfield(void) {
register byte x, y;
for (y = PLAYF_Y; y < PLAYF_Y + PLAYF_HEIGHT * BLOCK_SIZE; y++)
for (x = PLAYF_X; x < PLAYF_X + PLAYF_WIDTH * BLOCK_SIZE; x++)
clearpixel(x, y);
}
void clear_next_part(void) {
byte x, y;
for (x = PREVIEW_X + 5; x < PREVIEW_X + 25; x++) {
for (y = PREVIEW_Y + 5; y < PREVIEW_Y + 25; y++)
clearpixel(x, y);
}
}
void set_cursor(cursor* cur, pixel p){
cur->pos = p;
switch (cur->mode){
case clear:
clearpixel(p);
break;
case set:
setpixel(p,3);
break;
}
}
void clear_block(char x, char y) {
byte x1;
byte x_start;
byte y1;
register byte xc, yc;
x_start = PLAYF_X + BLOCK_SIZE * x;
y1 = PLAYF_Y + BLOCK_SIZE * y;
for (yc = 0; yc < BLOCK_SIZE; yc++) {
x1 = x_start;
for (xc = 0; xc < BLOCK_SIZE; xc++) {
clearpixel(x1, y1);
x1++;
}
y1++;
}
}
void vputnum(byte x, byte y, byte num) {
byte *p;
register byte rowx;
register byte xc, yc;
p = &num_small[num][0];
for (yc = 0; yc < 5; yc++) {
rowx = x;
for (xc = 0; xc < 3; xc++) {
if (*p)
setpixel(rowx, y);
else
clearpixel(rowx, y);
rowx++;
p++;
}
y++;
}
}
