//a method that checks the selection status of an entity
public static bool IsSelected(SelectionEntity selectionEntity, bool only, bool playerFaction)
{
return(selectionEntity != null && //valid selection entity
selectionEntity.IsSelected && //must be selected
(only == false || selectionEntity.IsSelectedOnly == true) //must it be only selected?
//and finally check for the player faction
&& (playerFaction == false || selectionEntity.FactionEntity == null || selectionEntity.FactionEntity.FactionID == GameManager.PlayerFactionID));
}
void Update()
{
//If the game is not running or the player is currently placing a building
if (GameManager.GameState != GameState.running || gameMgr.PlacementMgr.IsBuilding())
{
return; //don't proceed
}
UpdateCameraFollow(); //following entities with the camera
//Checking if the selection key is held down or not!
MultipleSelectionKeyDown = Input.GetKey(multipleSelectionKey);
box.Update(); //update the selection box
if (Input.GetKeyDown(idleUnitsSelection.key)) //if the player clicks the idle unit selection key
{
SelectIdleUnits();
}
//did the player just press one of these buttons?
bool leftButtonDown = Input.GetMouseButtonDown(0);
bool rightButtonDown = Input.GetMouseButtonDown(1);
//if the mouse pointer is over a UI element or the minimap, we will not detect entity selections. Also make sure that one of the mouse buttons are down
if (EventSystem.current.IsPointerOverGameObject() ||
gameMgr.CamMgr.MinimapCameraController.IsMouseOverMinimap(out RaycastHit hit) || (!leftButtonDown && !rightButtonDown))
{
return;
}
rayCheck = Camera.main.ScreenPointToRay(Input.mousePosition); //create a ray on the main camera from the mouse position
if (Physics.Raycast(rayCheck, out rayHit, Mathf.Infinity, rayLayerMask.value))
{
SelectionEntity hitSelection = rayHit.transform.gameObject.GetComponent <SelectionEntity>(); //see if we have hit a selection entity
bool hitTerrain = gameMgr.TerrainMgr.IsTerrainTile(rayHit.transform.gameObject); //did we hit the terrain?
if (rightButtonDown) //right mouse button is down, this is an action on the hit selection entity
{
if (gameMgr.TaskMgr.UnitComponent.AwaitingTaskType != TaskTypes.none)
{ //if we click with the right mouse button while having an awaiting component task..
gameMgr.TaskMgr.UnitComponent.ResetAwaitingTaskType(); //reset it.
return;
}
if (hitSelection) //if a selection entity was hit
{
hitSelection.OnAction(TaskTypes.none); //trigger action
}
else if (hitTerrain) //no selection entity was hit but the terrain was hit
{
OnSelectedUnitsAction(rayHit.point, TaskTypes.none); //either move selected units or launch a terrain attack
}
Building selectedBuilding = (Building)selected.GetSingleEntity(EntityTypes.building, true); //get the single selected player faction building
if (selectedBuilding != null && (hitSelection != null || hitTerrain)) //valid player faction building? update rally point if we hit something or we hit the terrain
{
selectedBuilding.UpdateRallyPoint(rayHit.point, hitSelection?.Source);
}
}
else if (leftButtonDown) //if the left mouse button is down then this a selection action
{
if (hitSelection == null) //no selection entity hit
{
TaskTypes currTask = gameMgr.TaskMgr.UnitComponent.AwaitingTaskType;
//if terrain was not hit or it was hit but there's no selected unit action
if (!hitTerrain ||
(currTask != TaskTypes.movement && currTask != TaskTypes.attack) ||
!OnSelectedUnitsAction(rayHit.point, currTask))
{
selected.RemoveAll(); //player is just clicking to clear selection
}
gameMgr.TaskMgr.UnitComponent.ResetAwaitingTaskType(); //& reset awaiting task type
return;
}
if (gameMgr.TaskMgr.UnitComponent.AwaitingTaskType != TaskTypes.none) //if there's a pending unit component task
{
hitSelection.OnAction(gameMgr.TaskMgr.UnitComponent.AwaitingTaskType); //trigger action
gameMgr.TaskMgr.UnitComponent.ResetAwaitingTaskType();
}
else //no pending unit component task -> select
{
selected.Add(hitSelection.Source, SelectionTypes.single); //select entity
}
}
}
}
/// <summary>
/// Assigns a minimap icon to a SelectionEntity instance
/// </summary>
public void Assign(SelectionEntity selection)
{
selection.UpdateMinimapIcon(Get(selection.Source.transform, selection.GetMinimapIconSize())); //assign the minimap icon to the selection obj component
selection.UpdateMinimapIconColor(); //update the new minimap icon color
}
