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don't create rectangles with width or height being 0 (and some whitespace noise, sorry)

This commit is contained in:
Christian Kroll 2011-09-01 21:56:41 +00:00
parent 3536604fb6
commit b4e5b60ffe
1 changed files with 31 additions and 30 deletions
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23
animations/mherweg.c
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@ -201,11 +201,12 @@ static void rectangles()
clear_screen(blank);
for (unsigned char n = 0; n < 60; n++)
{
// randomly chosen position, dimension and color
// randomly choose position, dimensions and color (the rectangle may
// exceed the actual screen size, only width and height have to be > 0)
unsigned char const x = random8() % NUM_COLS;
unsigned char const y = random8() % NUM_ROWS;
unsigned char const h = random8() % NUM_COLS / 2;
unsigned char const w = random8() % NUM_ROWS / 2;
unsigned char const w = random8() % (NUM_COLS / 2) + 1;
unsigned char const h = random8() % (NUM_ROWS / 2) + 1;
unsigned char const color = random8() % (NUMPLANE + 1);
filled_rectangle((pixel){x, y}, w, h, color);
@ -225,16 +226,16 @@ static void lines1()
clear_screen(blank);
for (unsigned char n = 0; n < 200; n++)
{
// randomly chosen position, dimension and color
unsigned char const x = random8() % NUM_COLS;
unsigned char const y = random8() % NUM_ROWS;
unsigned char const h = random8() % NUM_COLS;
unsigned char const w = random8() % NUM_ROWS;
// randomly choose position, length and color
unsigned char const x1 = random8() % NUM_COLS;
unsigned char const y1 = random8() % NUM_ROWS;
unsigned char const x2 = random8() % NUM_COLS;
unsigned char const y2 = random8() % NUM_ROWS;
unsigned char const color = random8() % (NUMPLANE + 1);
line((pixel){x, y}, (pixel){w, h}, color);
line((pixel){x1, y1}, (pixel){x2, y2}, color);
wait(random8()); // wait up to 250 ms
line((pixel){x, y}, (pixel){w, h}, blank);
line((pixel){x1, y1}, (pixel){x2, y2}, blank);
}
}
@ -264,7 +265,7 @@ static void dots1()
wait(glimmer_delay);
}
// wait up to 2500 ms until the next dot is drawn
// wait up to 2.5 seconds until the next dot is drawn
wait(random8() * 10);
}
}