/// <summary>
/// Place the ghost at the pointer's position
/// </summary>
/// <param name="pointer">The pointer to place the ghost at</param>
/// <exception cref="InvalidOperationException">If we're not in the correct state</exception>
protected void PlaceGhost(UIPointer pointer)
{
if (m_CurrentTower == null || !isBuilding)
{
throw new InvalidOperationException(
"Trying to position a tower ghost while the UI is not currently in a building state.");
}
MoveGhost(pointer);
if (m_CurrentArea != null)
{
TowerFitStatus fits = m_CurrentArea.Fits(m_GridPosition, m_CurrentTower.controller.dimensions);
if (fits == TowerFitStatus.Fits)
{
// Place the ghost
Tower controller = m_CurrentTower.controller;
Tower createdTower = Instantiate(controller);
createdTower.Initialize(m_CurrentArea, m_GridPosition);
CancelGhostPlacement();
}
}
}
/// <summary>
/// Move ghost with successful raycastHit onto m_PlacementAreaMask
/// </summary>
protected virtual void MoveGhostWithRaycastHit(RaycastHit raycast)
{
// We successfully hit one of our placement areas
// Try and get a placement area on the object we hit
m_CurrentArea = raycast.collider.GetComponent <IPlacementArea>();
if (m_CurrentArea == null)
{
Debug.LogError("There is not an IPlacementArea attached to " +
"the collider found on the m_PlacementAreaMask");
return;
}
m_GridPosition = m_CurrentArea.WorldToGrid(
raycast.point, m_CurrentTower.controller.dimensions);
TowerFitStatus fits = m_CurrentArea.Fits(
m_GridPosition, m_CurrentTower.controller.dimensions);
m_CurrentTower.Show();
m_GhostPlacementPossible = fits == TowerFitStatus.Fits && IsValidPurchase();
m_CurrentTower.Move(
m_CurrentArea.GridToWorld(m_GridPosition, m_CurrentTower.controller.dimensions),
m_CurrentArea.transform.rotation,
m_GhostPlacementPossible);
}
/// <summary>
/// Modifies the valid rendering of the ghost tower once there is enough currency
/// </summary>
protected virtual void OnCurrencyChanged()
{
if (!isBuilding || m_CurrentTower == null || m_CurrentArea == null)
{
return;
}
TowerFitStatus fits = m_CurrentArea.Fits(m_GridPosition, m_CurrentTower.controller.dimensions);
bool valid = fits == TowerFitStatus.Fits && IsValidPurchase();
m_CurrentTower.Move(m_CurrentArea.GridToWorld(m_GridPosition, m_CurrentTower.controller.dimensions),
m_CurrentArea.transform.rotation,
valid);
if (valid && !m_GhostPlacementPossible && ghostBecameValid != null)
{
m_GhostPlacementPossible = true;
ghostBecameValid();
}
}
/// <summary>
/// Checks the position of the <see cref="m_CurrentTower"/>
/// on the <see cref="m_CurrentArea"/>
/// </summary>
/// <returns>
/// True if the placement is valid
/// </returns>
/// <exception cref="InvalidOperationException">
/// Throws exception if the check is done in <see cref="State.Normal"/> state
/// </exception>
public bool IsGhostAtValidPosition()
{
if (!isBuilding)
{
throw new InvalidOperationException("Trying to check ghost position when not in a build mode");
}
if (m_CurrentTower == null)
{
return(false);
}
if (m_CurrentArea == null)
{
return(false);
}
TowerFitStatus fits = m_CurrentArea.Fits(m_GridPosition, m_CurrentTower.controller.dimensions);
return(fits == TowerFitStatus.Fits);
}
private void MoveGhostWithRaycastHit(RaycastHit raycast)
{
currentArea = raycast.collider.GetComponent <IPlacementArea>();
if (currentArea == null)
{
Log.Error("There is not an IPlacementArea attached to the collider found on the m_PlacementAreaMask");
return;
}
m_GridPosition = currentArea.WorldToGrid(raycast.point, entityDataTowerPreview.TowerData.Dimensions);
TowerFitStatus fits = currentArea.Fits(m_GridPosition, entityDataTowerPreview.TowerData.Dimensions);
SetVisiable(true);
canPlace = fits == TowerFitStatus.Fits;
Move(currentArea.GridToWorld(m_GridPosition, entityDataTowerPreview.TowerData.Dimensions),
currentArea.transform.rotation,
canPlace);
}
protected virtual void MoveGhostWithRaycastHit(RaycastHit raycast)
{
//m_CurrentArea = raycast.collider.GetComponent<BuildingPlaceDisplayMappingBind>().GetBindGameObject().GetComponent<IPlacementArea>();
m_CurrentArea = raycast.collider.GetComponent <IPlacementArea>();
if (m_CurrentArea == null)
{
Debug.LogError("There is not an IPlacementArea attached to the collider found on the m_PlacementAreaMask");
return;
}
m_GridPosition = m_CurrentArea.WorldToGrid(raycast.point);
TowerFitStatus fits = m_CurrentArea.Fits(m_GridPosition);
m_CurrentGhost.Show();
m_GhostPlacementPossible = fits == TowerFitStatus.Fits && IsValidPurchase();
if (m_GhostPlacementPossible)
{
//print("可以放置");
}
m_CurrentGhost.transform.position = raycast.point;
}
public bool TryBuildTower()
{
if (currentArea == null)
{
Log.Error("Current area is null");
return(false);
}
Vector3 position = Vector3.zero;
Quaternion rotation = currentArea.transform.rotation;
TowerFitStatus fits = currentArea.Fits(m_GridPosition, entityDataTowerPreview.TowerData.Dimensions);
if (fits == TowerFitStatus.Fits)
{
position = currentArea.GridToWorld(m_GridPosition, entityDataTowerPreview.TowerData.Dimensions);
currentArea.Occupy(m_GridPosition, entityDataTowerPreview.TowerData.Dimensions);
GameEntry.Event.Fire(this, BuildTowerEventArgs.Create(entityDataTowerPreview.TowerData, currentArea, m_GridPosition, position, rotation));
return(true);
}
return(false);
}
