/*
* This file is part of aion-unique <aion-unique.org>.
*
* aion-unique is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* aion-unique is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with aion-unique. If not, see <http://www.gnu.org/licenses/>.
*/
package com.aionemu.gameserver.utils;
import com.aionemu.gameserver.model.gameobjects.VisibleObject;
/**
* @author ATracer
*
*/
public class PositionUtil
{
private static final float MAX_ANGLE_DIFF = 90f;
/**
*
* @param object1
* @param object2
* @return true or false
*/
public static boolean isBehindTarget(VisibleObject object1, VisibleObject object2)
{
float angleObject1 = MathUtil.calculateAngleFrom(object1, object2);
float angleObject2 = MathUtil.convertHeadingToDegree(object2.getHeading());
float angleDiff = angleObject1 - angleObject2;
if (angleDiff <= -360 + MAX_ANGLE_DIFF) angleDiff += 360;
if (angleDiff >= 360 - MAX_ANGLE_DIFF) angleDiff -= 360;
return Math.abs(angleDiff) <= MAX_ANGLE_DIFF;
}
/**
*
* @param object1
* @param object2
* @return true or false
*/
public static boolean isInFrontOfTarget(VisibleObject object1, VisibleObject object2)
{
float angleObject2 = MathUtil.calculateAngleFrom(object2, object1);
float angleObject1 = MathUtil.convertHeadingToDegree(object2.getHeading());
float angleDiff = angleObject1 - angleObject2;
if (angleDiff <= -360 + MAX_ANGLE_DIFF) angleDiff += 360;
if (angleDiff >= 360 - MAX_ANGLE_DIFF) angleDiff -= 360;
return Math.abs(angleDiff) <= MAX_ANGLE_DIFF;
}
}