protected override async ValueTask UpdateCore(GameContext game)
{
if (_path is null || (!_path.Any() && _currPathNode is null))
{
return;
}
_currPathNode ??= _path.Next();
var tilePos = _mapRenderer.GetTilePos(_currPathNode);
var newPos = Vector2Utils.MoveTowards(_transform.World.Position, tilePos, Speed);
_transform.Local.Position = newPos;
var dist = Vector2.DistanceSquared(newPos, tilePos);
if (dist < Speed)
{
_currPathNode = null;
_transform.Local.Position = tilePos;
if (!_path.Any())
{
_path = null;
OnArrived?.Invoke(this);
}
}
}
protected override ValueTask Init(GameContext game)
{
var map = game.SceneManager.Current.FindGameObjectByName(ObjectNames.Map);
_mapRenderer = map.Components.Get <MapRenderComponent>();
_movementCursor = game.SceneManager.Current.FindGameObjectByName(ObjectNames.MovementCursor);
var pathFollower = this.Owner.Components.Get <PathFollowerComponent>();
pathFollower.OnStartWalking += (_, from, to) =>
{
var tilePos = _mapRenderer.GetTilePos(to);
_movementCursor.Components.Get <TransformComponent>().Local.Position = tilePos;
_movementCursor.Enabled = true;
};
pathFollower.OnArrived += _ =>
{
_movementCursor.Enabled = false;
var newState = new AI.States.Idle(this.Owner, 0f);
base.SetState(game, newState);
};
_inputService = game.GetService <InputService>();
_inputService.Mouse.OnButtonStateChanged += (btn, state, oldState) =>
{
if (btn != MouseButtons.Left)
{
return;
}
if (!state.IsClicked && oldState.IsClicked)
{
_movementCursor.Enabled = false;
var destination = _mapRenderer.GetTileAt(_inputService.Mouse.X, _inputService.Mouse.Y);
if (!destination.IsWalkable)
{
return;
}
var newState = new AI.States.Arrive(this.Owner);
newState.SetDestination(destination);
base.SetState(game, newState);
}
};
return(ValueTask.CompletedTask);
}
