public BPRadSprite(float rad) {
super(null, null);
int per = Math.max(24, (int) (2 * Math.PI * (double) rad / 11.0D));
FloatBuffer pa = Utils.mkfbuf(per * 3 * 2);
FloatBuffer na = Utils.mkfbuf(per * 3 * 2);
ShortBuffer sa = Utils.mksbuf(per * 6);
for (int i = 0; i < per; ++i) {
float s = (float) Math.sin(2 * Math.PI * (double) i / (double) per);
float c = (float) Math.cos(2 * Math.PI * (double) i / (double) per);
pa.put(i * 3 + 0, c * rad).put(i * 3 + 1, s * rad).put(i * 3 + 2, 10.0F);
pa.put((per + i) * 3 + 0, c * rad)
.put((per + i) * 3 + 1, s * rad)
.put((per + i) * 3 + 2, -10.0F);
na.put(i * 3 + 0, c).put(i * 3 + 1, s).put(i * 3 + 2, 0.0F);
na.put((per + i) * 3 + 0, c).put((per + i) * 3 + 1, s).put((per + i) * 3 + 2, 0.0F);
int v = i * 6;
sa.put(v + 0, (short) i).put(v + 1, (short) (i + per)).put(v + 2, (short) ((i + 1) % per));
sa.put(v + 3, (short) (i + per))
.put(v + 4, (short) ((i + 1) % per + per))
.put(v + 5, (short) ((i + 1) % per));
}
this.posa = new VertexArray(pa);
this.nrma = new NormalArray(na);
this.sidx = sa;
}
