public override void _PhysicsProcess(float delta)
{
if (startedMoving)
{
EmitSignal(nameof(StartedMoving));
startedMoving = false;
}
if (Input.IsActionPressed("click"))
{
_targetGlobalPosition = GetGlobalMousePosition();
startedMoving = true;
}
if (GlobalPosition.DistanceTo(_targetGlobalPosition) < DISTANCE_TRESHOLD)
{
return;
}
_velocity = Steering.ArriveTo(_velocity,
GlobalPosition,
_targetGlobalPosition,
maxSpeed: MaxSpeed,
SlowdownRadius);
_velocity = MoveAndSlide(_velocity);
Triangle.Rotation = _velocity.Angle();
}
public override void _PhysicsProcess(float delta)
{
_targetGlobalPosition = _target.GlobalPosition;
float toTarget = GlobalPosition.DistanceTo(_targetGlobalPosition);
if (startedMoving)
{
// Emit signal one frame after agent starts moving. This is because
// Target uses GetOverlappingBodies(), which is updated only once per frame,
// to detect overlapping bodies.
EmitSignal(nameof(StartedMoving));
startedMoving = false;
}
if (toTarget < DISTANCE_TRESHOLD)
{
return;
}
// OffsetTargetPosition is a position slightly behind the object that the agent follows.
// We get it by calculating the direction to the target (subtract agent's position from target's
// position and normalize the result), multiplying the direction with the follow offset,
// and subtracting that from the target's global position.
// We only use it if the distance to target is greater than the follow offset. Otherwise,
// the offsetTargetPosition is set to the current position.
Vector2 offsetTargetPosition = toTarget > FollowOffset
? _targetGlobalPosition - (_targetGlobalPosition - GlobalPosition).Normalized() * FollowOffset
: GlobalPosition;
_velocity = Steering.ArriveTo(_velocity,
GlobalPosition,
offsetTargetPosition,
MaxSpeed,
ArriveRadius,
Mass);
_velocity = MoveAndSlide(_velocity);
Triangle.Rotation = _velocity.Angle();
}
