/**
* Set the values, all constructors uses this function
*
* @param loc location of the view
* @param maxDistance how far it checks for blocks
* @param viewHeight where the view is positioned in y-axis
* @param checkDistance how often to check for blocks, the smaller the more precise
*/
private void setValues(
Location loc,
int maxDistance,
double viewHeight,
double checkDistance,
TIntHashSet transparent) {
this.maxDistance = maxDistance;
this.checkDistance = checkDistance;
curDistance = 0;
int xRotation = (int) (loc.getYaw() + 90) % 360;
int yRotation = (int) loc.getPitch() * -1;
double h = checkDistance * Math.cos(Math.toRadians(yRotation));
offset =
new Vector(
(h * Math.cos(Math.toRadians(xRotation))),
(checkDistance * Math.sin(Math.toRadians(yRotation))),
(h * Math.sin(Math.toRadians(xRotation))));
targetPosDouble = loc.add(0, viewHeight, 0).toVector();
targetPos = targetPosDouble.toBlockVector();
prevPos = targetPos;
transparentBlocks = transparent;
if (transparentBlocks == null) {
transparentBlocks = new TIntHashSet(new int[] {0});
}
}
/**
* Get next block
*
* @return next block position
*/
public boolean getNextBlock() {
prevPos = targetPos;
do {
curDistance += checkDistance;
targetPosDouble.add(offset);
targetPos = targetPosDouble.toBlockVector();
} while (curDistance <= maxDistance
&& targetPos.getBlockX() == prevPos.getBlockX()
&& targetPos.getBlockY() == prevPos.getBlockY()
&& targetPos.getBlockZ() == prevPos.getBlockZ());
if (curDistance > maxDistance) {
return false;
}
return true;
}