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using UnityEngine;
using UnityEngine.Events;
public abstract class ThronefallUIElement : MonoBehaviour
{
public enum NavigationDirection
{
Right,
Left,
Up,
Down
}
public enum SelectionState
{
Default,
Focussed,
Selected,
FocussedAndSelected
}
protected SelectionState currentState;
protected SelectionState previousState;
public bool ignoreMouse;
public bool autoSelectOnFocus;
public bool cannotBeSelected;
public ThronefallUIElement leftNav;
public ThronefallUIElement rightNav;
public ThronefallUIElement topNav;
public ThronefallUIElement botNav;
public UnityEvent onSelectionStateChange = new UnityEvent();
public UnityEvent onApply = new UnityEvent();
public UnityEvent<NavigationDirection> onEmptyNavigate = new UnityEvent<NavigationDirection>();
public SelectionState CurrentState => currentState;
public SelectionState PreviousState => previousState;
public virtual bool dragable => false;
public void Apply()
{
if (!SceneTransitionManager.instance.SceneTransitionIsRunning)
{
onApply.Invoke();
OnApply();
}
}
public void Select()
{
SetState(SelectionState.Selected);
}
public void Focus()
{
SetState(SelectionState.Focussed);
}
public void FocusAndSelect()
{
SetState(SelectionState.FocussedAndSelected);
}
public void Clear()
{
SetState(SelectionState.Default);
}
public void HardStateSet(SelectionState selectionState)
{
currentState = selectionState;
previousState = selectionState;
OnHardStateSet(selectionState);
}
protected abstract void OnApply();
protected abstract void OnClear();
protected abstract void OnSelect();
protected abstract void OnFocus();
protected abstract void OnFocusAndSelect();
protected abstract void OnHardStateSet(SelectionState selectionState);
private void SetState(SelectionState state)
{
if (state != currentState)
{
previousState = currentState;
currentState = state;
switch (currentState)
{
case SelectionState.Default:
OnClear();
break;
case SelectionState.Focussed:
OnFocus();
break;
case SelectionState.Selected:
OnSelect();
break;
case SelectionState.FocussedAndSelected:
OnFocusAndSelect();
break;
}
onSelectionStateChange.Invoke();
}
}
public ThronefallUIElement TryNavigate(NavigationDirection direction)
{
if (SceneTransitionManager.instance.SceneTransitionIsRunning)
{
return this;
}
ThronefallUIElement thronefallUIElement = null;
switch (direction)
{
case NavigationDirection.Down:
thronefallUIElement = botNav;
break;
case NavigationDirection.Up:
thronefallUIElement = topNav;
break;
case NavigationDirection.Left:
thronefallUIElement = leftNav;
break;
case NavigationDirection.Right:
thronefallUIElement = rightNav;
break;
}
if ((bool)thronefallUIElement && !thronefallUIElement.gameObject.activeInHierarchy)
{
return thronefallUIElement.TryNavigate(direction);
}
onEmptyNavigate.Invoke(direction);
return thronefallUIElement;
}
public virtual void OnDrag(Vector2 mousePosition)
{
}
public virtual void OnDragEnd()
{
}
public virtual void OnDragStart()
{
}
}
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