/// <summary>
/// tries to add an item to the character's inventory
/// </summary>
/// <param name="character"></param>
/// <param name="item"></param>
/// <returns>true on success</returns>
public bool AddItem(int character, int item)
{
var inventory = EntityManager.GetComponent <InventoryComponent>(character);
if (inventory == null)
{
Log.Warning("Character does not have an inventory! -> " + DescriptionSystem.GetNameWithID(character));
return(false);
}
var itemInfo = EntityManager.GetComponent <ItemComponent>(item);
if (itemInfo == null)
{
Log.Error("Trying to add item entity to character that's not an item!");
Log.Data(DescriptionSystem.GetDescription(item));
return(false);
}
if (itemInfo.Count == 0) // happens if item comes back from e.g. crafting reset
{
itemInfo.Count = 1;
}
// "Re-Stacking" - item gets handed back from e.g. crafting reset
if (inventory.Items.Contains(item))
{
itemInfo.Count++;
return(true);
}
#region ItemStacking
IEnumerable <IComponent> newItem = EntityManager.GetComponents(item);
foreach (var inventoryItemID in inventory.Items)
{
var inventoryItem = EntityManager.GetComponents(inventoryItemID);
bool itemMatch = true;
foreach (var newItemComponent in newItem)
{
bool componentMatch = false;
if (newItemComponent.TypeID == Component <TransformComponent> .TypeID)
{
continue;
}
foreach (var inventoryItemComponent in inventoryItem)
{
if (newItemComponent.Equals(inventoryItemComponent))
{
componentMatch = true;
break;
}
}
if (!componentMatch)
{
itemMatch = false;
break;
}
}
if (itemMatch == true)
{
var invItemInfo = EntityManager.GetComponent <ItemComponent>(inventoryItemID);
int newCount = invItemInfo.Count + itemInfo.Count;
invItemInfo.Count = Math.Min(newCount, invItemInfo.MaxCount);
int itemsLeft = Math.Max(0, newCount - invItemInfo.MaxCount);
// TODO: implement overflow
if (itemsLeft > 0)
{
UISystem.Message(String.Format("{0} x{1} was lost in the void...", DescriptionSystem.GetName(item), itemsLeft));
}
EntityManager.RemoveEntity(item);
return(true);
}
}
// at this point, no matching item was found
if (inventory.Full)
{
UISystem.Message("Inventory is full! -> " + DescriptionSystem.GetNameWithID(character));
return(false);
}
inventory.Items.Add(item);
return(true);
#endregion
/*
* var pickupComponentTypeIDs = EntityManager.GetComponentTypeIDs(item);
*
* bool match = false; // can item can be stacked here
*
* // start looking through every item in inventory
* // to find out if picked up item can be stacked
* foreach (var invItemID in inventory.Items)
* {
* var invItemInfo = EntityManager.GetComponent<ItemComponent>(invItemID);
*
* // if already stacked to max, jump straight to next
* if (invItemInfo.Count == invItemInfo.MaxCount)
* {
* match = false;
* continue;
* }
*
* var invItemComponentIDs = EntityManager.GetComponentTypeIDs(invItemID);
*
* // check if both items have the exact same components attached
* match = invItemComponentIDs.All(pickupComponentTypeIDs.Contains) && invItemComponentIDs.Count() == pickupComponentTypeIDs.Count();
*
* if (match)
* {
* var pickedUpItemInfo = EntityManager.GetComponent<ItemComponent>(item);
*
* // cumulative count doesnt exceed max -> just increase count
* // in inventory and remove picked up item
* if (invItemInfo.Count + pickedUpItemInfo.Count <= invItemInfo.MaxCount)
* {
* invItemInfo.Count += pickedUpItemInfo.Count;
* EntityManager.RemoveEntity(item);
* }
*
* // cumulative count exceeds max ->
* // stack up to max, rest becomes new stack
* else
* {
* pickedUpItemInfo.Count -= invItemInfo.MaxCount - invItemInfo.Count; // remove difference used to max out inventory item
* invItemInfo.Count = invItemInfo.MaxCount;
* inventory.Items.Add(item);
* }
* break;
* }
* }
*/
//if (!match)
//{
//}
}
/// <summary>
/// checks if moving onto newPos is possible
/// and triggers any interaction otherwise
/// </summary>
/// <param name="entity">ID of entity to move</param>
/// <param name="newPos">new Position to move to</param>
/// <returns>wether movement is possible</returns>
private bool TryMove(int entity, Position newPos)
{
var floor = Util.CurrentFloor;
if (floor.IsOutOfBounds(newPos))
{
return(false);
}
int otherCharacter = floor.GetCharacter(newPos);
//check if someone's already there
if (otherCharacter != 0 && otherCharacter != entity)
{
// check if collidable
if (EntityManager.GetComponent <ColliderComponent>(otherCharacter) != null)
{
//TODO: talk to npcs?
RaiseBasicAttackEvent(entity, otherCharacter);
return(false);
}
else
{
Log.Warning("Character without collider:");
Log.Data(DescriptionSystem.GetDebugInfoEntity(otherCharacter));
UISystem.Message("Something seems to be there...");
return(false);
}
}
int structure = floor.GetStructure(newPos);
if (structure != 0 && EntityManager.GetComponent <ColliderComponent>(structure) != null)
{
bool solid = RaiseCollisionEvent(entity, structure);
// check if interactable
var interactable = EntityManager.GetComponent <InteractableComponent>(structure);
// only interact with structures right away if they're solid ("bumping" into them)
if (solid)
{
if (interactable != null)
{
RaiseInteractionEvent(entity, structure);
}
return(false);
}
}
int terrain = floor.GetTerrain(newPos);
// check if collidable with
if (terrain != 0 && EntityManager.GetComponent <ColliderComponent>(terrain) != null)
{
// check if terrain is solid before possible interaction
// this is because solidity might be changed by interaction (e.g. door gets opened)
bool solid = RaiseCollisionEvent(entity, terrain);
// check if interactable
var interactable = EntityManager.GetComponent <InteractableComponent>(terrain);
if (interactable != null)
{
RaiseInteractionEvent(entity, terrain);
}
// check if terrain is solid
if (solid)
{
return(false);
}
}
//trigger special Message on step on
if (entity == Util.PlayerID && terrain != 0)
{
string message = (DescriptionSystem.GetSpecialMessage(terrain, DescriptionComponent.MessageType.StepOn));
if (message.Length > 0)
{
UISystem.Message(message);
}
}
return(true);
}