private int getSectorIndexByCurHeadPos(FloppyDiskDrive drive) {
int idx = -1;
if (drive != null) {
AbstractFloppyDisk disk = drive.getDisk();
if (disk != null) {
int head = getArgHead();
int cyl = drive.getCylinder();
int spc = disk.getSectorsOfCylinder(cyl, head);
int tpr = this.tStatesPerRotation;
if ((spc > 0) && (tpr > 0) && (head < disk.getSides()) && (cyl < disk.getCylinders())) {
idx = Math.round((float) this.tStateRotationCounter / (float) tpr * (float) spc);
if (idx >= spc) {
idx = spc - 1;
}
}
if (idx < 0) {
idx = 0;
}
}
}
return idx;
}
