Vector pursueEntity(AIEntity entityToCatch)
{
Vector targetPos = entityToCatch.getPosition() - this.owner.getPosition();
double relativeHead = owner.getHeadingDirection().dotProduct(entityToCatch.getHeadingDirection());
if(targetPos.dotProduct(owner.getHeadingDirection()) > 0 &&
relativeHead < -0.9) {
return this.seek(entityToCatch.getPosition());
}
double lookAhead = Math.sqrt(vecToTarg.lengthSquared()) /
(owner.getMaxSpeed() + Math.sqrt(entityToCatch.currentSpeedSquared()));
return this.seek(entityToCatch.getPosition() + (entityToCatch.getVelocity() * lookAhead));
}
Vector evadeEntity(AIEntity entityToEvade)
{
Vector toTarget = entityToEvade.getPosition() - owner.getPosition();
double range = 1000;
if(toTarget.lengthSquared() > range)return Vector(0,0);
double lookAhead = Math.sqrt(vecToTarg.lengthSquared()) /
(owner.getMaxSpeed() + Math.sqrt(entityToEvade.currentSpeedSquared()));
return this.flee(entityToEvade.getPosition + (entityToEvade.getVelocity()*lookAhead));
}