Ejemplo n.º 1
0
        public TargetList GetEnemiesInBeamDirection(Vector3D startPoint, Vector3D direction,
                                                    float length, float thickness = 0f)
        {
            Vector3D beamEnd = PowerMath.TranslateDirection2D(startPoint, direction, startPoint, length);

            float fixedActorRadius = 1.5f;  // TODO: calculate based on actor.ActorData.Cylinder.Ax2 ?

            return(_GetTargetsInRadiusHelper(startPoint, length + thickness, -1,
                                             actor => PowerMath.CircleInBeam(new Circle(actor.Position.X, actor.Position.Y, fixedActorRadius),
                                                                             startPoint, beamEnd, thickness),
                                             _EnemyActorFilter));
        }
Ejemplo n.º 2
0
        public TargetList GetEnemiesInArcDirection(Vector3D center, Vector3D direction, float radius, float lengthDegrees)
        {
            Vector2F arcCenter2D    = PowerMath.VectorWithoutZ(center);
            Vector2F arcDirection2D = PowerMath.VectorWithoutZ(direction);
            float    arcLength      = lengthDegrees * PowerMath.DegreesToRadians;

            float fixedActorRadius = 1.5f;  // TODO: calculate based on actor.ActorData.Cylinder.Ax2 ?

            return(_GetTargetsInRadiusHelper(center, radius, -1,
                                             actor => PowerMath.ArcCircleCollides(arcCenter2D, arcDirection2D, radius, arcLength,
                                                                                  new Circle(actor.Position.X, actor.Position.Y, fixedActorRadius)),
                                             _EnemyActorFilter));
        }
Ejemplo n.º 3
0
        private void _SetupMove(Vector3D destination, float speed)
        {
            Vector3D dir_normal = PowerMath.Normalize(new Vector3D(destination.X - this.Target.Position.X,
                                                                   destination.Y - this.Target.Position.Y,
                                                                   destination.Z - this.Target.Position.Z));

            this.Velocity = new Vector3D(dir_normal.X * speed,
                                         dir_normal.Y * speed,
                                         dir_normal.Z * speed);

            this.ArrivalTime = new RelativeTickTimer(this.Target.World.Game,
                                                     (int)(PowerMath.Distance2D(this.Target.Position, destination) / speed));
            _startPosition = this.Target.Position;
            _endPosition   = destination;
            _startTick     = this.Target.World.Game.TickCounter;
        }
Ejemplo n.º 4
0
        public Actor GetClosestTo(Vector3D position)
        {
            Actor closest         = null;
            float closestDistance = float.MaxValue;

            foreach (Actor actor in this.Actors)
            {
                float distance = PowerMath.Distance2D(actor.Position, position);
                if (distance < closestDistance)
                {
                    closest         = actor;
                    closestDistance = distance;
                }
            }

            return(closest);
        }
Ejemplo n.º 5
0
        private void _SetupArcMove(Vector3D destination, float crestHeight, float gravity)
        {
            // TODO: handle when target and destination heights differ
            float absGravity   = Math.Abs(gravity);
            float arcLength    = (float)Math.Sqrt(2f * crestHeight / absGravity);
            int   arrivalTicks = (int)(arcLength * 2f);

            float    distance = PowerMath.Distance2D(this.Target.Position, destination);
            Vector3D normal   = PowerMath.Normalize(new Vector3D(destination.X - this.Target.Position.X,
                                                                 destination.Y - this.Target.Position.Y,
                                                                 0f));

            this.Velocity = new Vector3D(normal.X * (distance / arrivalTicks),
                                         normal.Y * (distance / arrivalTicks),
                                         absGravity * arcLength);

            this.ArrivalTime = new RelativeTickTimer(this.Target.World.Game, arrivalTicks);
            _startPosition   = this.Target.Position;
            _endPosition     = destination;
            _startTick       = this.Target.World.Game.TickCounter;
            _arcGravity      = gravity;
        }
Ejemplo n.º 6
0
        private void _CheckCollisions()
        {
            if (OnCollision == null)
            {
                return;
            }

            // check if we collided with anything since last update

            float  radius      = this.ActorData.Cylinder.Ax2;
            Circle startCircle = new Circle(_prevUpdatePosition.X, _prevUpdatePosition.Y, radius);
            // make a velocity representing the change to the current position
            Vector2F velocity = PowerMath.VectorWithoutZ(this.Position - _prevUpdatePosition);

            Actor      hit     = null;
            TargetList targets = this.Context.GetEnemiesInRadius(this.Position, radius + 25f);

            if (CollisionFilter != null)
            {
                targets.Actors.RemoveAll(actor => !CollisionFilter(actor));
            }
            targets.SortByDistanceFrom(_prevUpdatePosition);

            foreach (Actor target in targets.Actors)
            {
                float targetRadius = 1.5f; // TODO: use target.ActorData.Cylinder.Ax2 ?
                if (PowerMath.MovingCircleCollides(startCircle, velocity, new Circle(target.Position.X, target.Position.Y, targetRadius)))
                {
                    hit = target;
                    break;
                }
            }

            if (hit != null)
            {
                OnCollision(hit);
            }
        }
Ejemplo n.º 7
0
 public void SortByDistanceFrom(Vector3D position)
 {
     this.Actors = this.Actors.OrderBy(actor => PowerMath.Distance2D(actor.Position, position)).ToList();
 }