public void DrawLine(Vector2 point1, Vector2 point2, Color color, double depth)
{
Vector2 scale = new Vector2((float)Math.Sqrt((point2 - point1).LengthSquared()), 1);
float rotation = (float)Vector2Utils.Vector2Angle(point2 - point1);
spriteBatch.Draw(point, point1, null, color, rotation, new Vector2(0), scale, SpriteEffects.None, (float)depth);
}
public Boolean IsPointedAt(Vector2 target, float errorDistance)
{
Vector2 worldPosition = this.WorldPosition();
float angle = Vector2Utils.ShortestAngleDistance(Vector2Utils.Vector2Angle(target - worldPosition), this.WorldDirection());
float distanceToTarget = Vector2.Distance(target, worldPosition);
return(Math.Abs(angle) <= Math.PI / 2 && Math.Abs((float)(Math.Sin(angle) * distanceToTarget)) < errorDistance);
}
public float GetClosestPointAtAngleInRange(Vector2 target)
{
PhysicalObject parent = ((PhysicalObject)(this.Parent));
if (parent != null)
{
float worldDirection = Vector2Utils.Vector2Angle(target - this.WorldPosition());
float targetAngleRelativeToParent = worldDirection - parent.WorldDirection() - this.DirectionRelativeToParent;
return(MathUtils.ClosestInRange(Vector2Utils.MinimizeMagnitude(targetAngleRelativeToParent), this.Range, -this.Range));
}
else
{
return(0);
}
}
public override void Handle(Microsoft.Xna.Framework.GameTime elapsedTime)
{
base.Handle(elapsedTime);
if (Vector2Utils.ShortestAngleDistance(obj.Direction, Vector2Utils.Vector2Angle(followObj.Position - obj.Position)) < (Math.PI / 20))
{
if (!fire)
{
//((NPCShip)obj).FireCoaxialWeapon();
//fire = true;
}
}
// Switch states if we are too close for engagement.
if ((followObj.Position - obj.Position).Length() < 500)
{
// TODO: Dangerous convert...fix this
this.Context.AddState(new ClearTargetState((NPCBasicAttackStrategy)this.Context, (NPCShip)this.obj, this.followObj));
this.Context.RemoveState(this);
}
}