private void tickPerPlane(int i) {
double theta = thePlanes[i].theta += thePlanes[i].speed;
thePlanes[i].z = -9 + 4 * Math.cos(theta);
thePlanes[i].x = 4 * Math.sin(2 * theta);
thePlanes[i].y = Math.sin(theta / 3.4) * 3;
thePlanes[i].angle = ((Math.atan(2.0) + PI_2) * Math.sin(theta) - PI_2) * 180 / PI;
if (thePlanes[i].speed < 0.0) thePlanes[i].angle += 180;
}
private void addPlane() {
int i;
for (i = 0; i < MAX_PLANES; i++)
if (thePlanes[i].speed == 0) {
switch (Math.abs(random.nextInt() % 6)) {
case 0:
thePlanes[i].red = 1.0;
thePlanes[i].green = 0.0;
thePlanes[i].blue = 0.0; // red
break;
case 1:
thePlanes[i].red = 1.0;
thePlanes[i].green = 1.0;
thePlanes[i].blue = 1.0; // white
break;
case 2:
thePlanes[i].red = 0.0;
thePlanes[i].green = 1.0;
thePlanes[i].blue = 0.0; // green
break;
case 3:
thePlanes[i].red = 1.0;
thePlanes[i].green = 0.0;
thePlanes[i].blue = 1.0; // magenta
break;
case 4:
thePlanes[i].red = 1.0;
thePlanes[i].green = 1.0;
thePlanes[i].blue = 0.0; // yellow
break;
case 5:
thePlanes[i].red = 0.0;
thePlanes[i].green = 1.0;
thePlanes[i].blue = 1.0; // cyan
break;
}
thePlanes[i].speed = (Math.abs(random.nextInt() % 20)) * 0.001 + 0.02;
if ((random.nextInt() & 0x1) != 0) thePlanes[i].speed *= -1;
thePlanes[i].theta = ((float) (Math.abs(random.nextInt() % 257))) * 0.1111;
tickPerPlane(i);
if (!moving) display();
return;
}
}