/// <summary>
/// Processes a building placement request and adds a new pending building to be placed.
/// </summary>
/// <param name="buildingPrefab">The Building prefab to be cloned and placed.</param>
/// <param name="buildAround">Defines where the building will be placed around.</param>
/// <param name="buildAroundRadius">How far should the building from its 'buildAround' position?</param>
/// <param name="buildingCenter">The Building center instance that the new building will be placed under.</param>
/// <param name="buildAroundDistance">Initial ditsance between the building and its 'buildAround' position.</param>
/// <param name="rotate">Can the building be rotated while getting placed?</param>
public void OnBuildingPlacementRequest(Building buildingPrefab, GameObject buildAround, float buildAroundRadius, Building buildingCenter, float buildAroundDistance, bool rotate)
{
//if the building center or the build around object hasn't been specified:
if (buildAround == null || buildingCenter == null)
{
Debug.LogError("Build Around object or Building Center for " + buildingPrefab.GetName() + " hasn't been specified in the Building Placement Request!");
return;
}
//take resources to place building.
gameMgr.ResourceMgr.UpdateRequiredResources(buildingPrefab.GetResources(), false, factionMgr.FactionID);
//pick the building's spawn pos:
Vector3 buildAroundPos = buildAround.transform.position;
//for the sample height method, the last parameter presents the navigation layer mask and 0 stands for the built-in walkable layer where buildings can be placed
buildAroundPos.y = gameMgr.TerrainMgr.SampleHeight(buildAround.transform.position, buildAroundRadius, 0) + gameMgr.PlacementMgr.GetBuildingYOffset();
Vector3 buildingSpawnPos = buildAroundPos;
buildingSpawnPos.x += buildAroundDistance;
//create new instance of building and add it to the pending buildings list:
NPCPendingBuilding newPendingBuilding = new NPCPendingBuilding
{
prefab = buildingPrefab,
instance = Instantiate(buildingPrefab.gameObject, buildingSpawnPos, buildingPrefab.transform.rotation).GetComponent <Building>(),
buildAroundPos = buildAroundPos,
buildAroundDistance = buildAroundDistance,
center = buildingCenter,
rotate = rotate
};
//pick a random starting position for building by randomly rotating it around its build around positio
newPendingBuilding.instance.transform.RotateAround(newPendingBuilding.buildAroundPos, Vector3.up, Random.Range(0.0f, 360.0f));
//keep initial rotation (because the RotateAround method will change the building's rotation as well which we do not want)
newPendingBuilding.instance.transform.rotation = newPendingBuilding.prefab.transform.rotation;
//initialize the building instance for placement:
newPendingBuilding.instance.InitPlacementInstance(gameMgr, factionMgr.FactionID, buildingCenter.BorderComp);
//we need to hide the building initially, when its turn comes to be placed, appropriate settings will be applied.
newPendingBuilding.instance.gameObject.SetActive(false);
newPendingBuilding.instance.ToggleModel(false); //Hide the building's model:
//Call the start building placement custom event:
CustomEvents.OnBuildingStartPlacement(newPendingBuilding.instance);
//add the new pending building to the list:
pendingBuildings.Push(newPendingBuilding);
if (!IsActive) //if building placer was not active (had no building to place)
{
StartPlacingNextBuilding(); //immediately start placing it.
heightCheckCoroutine = HeightCheck(heightCheckReload); //Start the height check coroutine to keep the building always on top of the terrain
StartCoroutine(heightCheckCoroutine);
}
}
/// <summary>
/// Starts placing the next building in the pending buildings list: First In, First Out
/// </summary>
private void StartPlacingNextBuilding()
{
//if there's no pending building:
if (pendingBuildings.Count == 0)
{
StopCoroutine(heightCheckCoroutine); //stop checking for height
return; //stop.
}
currPendingBuilding = pendingBuildings.Pop(); //get the next pending building to start placing it
currPendingBuilding.instance.gameObject.SetActive(true); //activate it
//reset building rotation/movement timer:
placementMoveTimer = -1; //this will move the building from its initial position in the beginning of the placement process.
placementMoveReloadIncCount = 0;
placementDelayTimer = placementDelayRange.getRandomValue(); //start the placement delay timer.
Activate(); //mark component as active
}
