/**
* Faster calculation than checkIfInRange if distance is short and collisionRadius isn't needed.
* Not for long distance checks (potential teleports, far away castles, etc)
*
* @param radius The radius to use as check.
* @param obj1 The position 1 to make check on.
* @param obj2 The postion 2 to make check on.
* @param includeZAxis Include Z check or not.
* @return true if both objects are in the given radius.
*/
public static boolean checkIfInShortRadius(
int radius, L2Object obj1, L2Object obj2, boolean includeZAxis) {
if (obj1 == null || obj2 == null) return false;
if (radius == -1) return true; // not limited
int dx = obj1.getX() - obj2.getX();
int dy = obj1.getY() - obj2.getY();
if (includeZAxis) {
int dz = obj1.getZ() - obj2.getZ();
return dx * dx + dy * dy + dz * dz <= radius * radius;
}
return dx * dx + dy * dy <= radius * radius;
}
/**
* This check includes collision radius of both characters.<br>
* Used for accurate checks (skill casts, knownlist, etc).
*
* @param range The range to use as check.
* @param obj1 The position 1 to make check on.
* @param obj2 The postion 2 to make check on.
* @param includeZAxis Include Z check or not.
* @return true if both objects are in the given radius.
*/
public static boolean checkIfInRange(
int range, L2Object obj1, L2Object obj2, boolean includeZAxis) {
if (obj1 == null || obj2 == null) return false;
if (range == -1) return true; // not limited
int rad = 0;
if (obj1 instanceof L2Character) rad += ((L2Character) obj1).getTemplate().getCollisionRadius();
if (obj2 instanceof L2Character) rad += ((L2Character) obj2).getTemplate().getCollisionRadius();
double dx = obj1.getX() - obj2.getX();
double dy = obj1.getY() - obj2.getY();
if (includeZAxis) {
double dz = obj1.getZ() - obj2.getZ();
double d = dx * dx + dy * dy + dz * dz;
return d <= range * range + 2 * range * rad + rad * rad;
}
double d = dx * dx + dy * dy;
return d <= range * range + 2 * range * rad + rad * rad;
}
public static final int calculateHeadingFrom(L2Object obj1, L2Object obj2) {
return calculateHeadingFrom(obj1.getX(), obj1.getY(), obj2.getX(), obj2.getY());
}
/**
* @param obj1
* @param obj2
* @return degree value of object 2 to the horizontal line with object 1 being the origin
*/
public static double calculateAngleFrom(L2Object obj1, L2Object obj2) {
return calculateAngleFrom(obj1.getX(), obj1.getY(), obj2.getX(), obj2.getY());
}