/// <summary>
/// Drop first item in inventory back into the world
/// </summary>
/// <param name="world"></param>
public void DropItem(World world)
{
PointF dropLocation = GetLocationInFrontOfPlayer();
// Check if item can be dropped on target from dropLocation
bool isLand = world.getTerraintile(dropLocation).IsWalkable;
bool hasSolidEntitiesOnTarget = world.checkCollision(this, dropLocation);
List<Entity> entitiesOnTerrainTile = world.getEntitiesOnTerrainTile(location);
List<Entity> entitiesOnTargetTerrainTile = world.getEntitiesOnTerrainTile(dropLocation);
bool hasWaterlilyOnTarget = entitiesOnTargetTerrainTile.Exists(e => e.getSpriteID() == (int) SPRITES.waterlily);
// If no item exists in inventory or
// there is a solid target on dropLocation or
// targettile is not land, return
if (!Inventory.Any() || hasSolidEntitiesOnTarget ||
(!isLand && !hasWaterlilyOnTarget))
return;
// If item is key, lock door
if (Inventory[0].Entity is Key)
{
// If player is standing in a door, cancel action
if (entitiesOnTerrainTile.Exists(e => e is Door))
return;
world.LockDoor((Key)Inventory[0].Entity);
}
// Set droplocation on item
Inventory[0].Entity.setLocation(dropLocation);
// Push item in world objects list
world.getEntities().Add(Inventory[0].Entity);
// Remove item from inventory
Inventory.RemoveAt(0);
}
/// <summary>
/// Moves the player to the given relative location
/// </summary>
/// <param name="sender"></param>
/// <param name="relativeLocation"></param>
public override void move(World sender, PointF relativeLocation)
{
float moveLocationX = location.X + relativeLocation.X;
float moveLocationY = location.Y + relativeLocation.Y;
PointF targetPoint = new PointF(moveLocationX, moveLocationY);
TerrainTile targetTile = sender.getTerraintile (targetPoint);
// If terrain contains solid objects OR if tile has no walkable entity on a non-walkable tile
if (targetTile == null || sender.checkCollision(this, targetPoint) || !targetTile.IsWalkable && !sender.checkCollision(this, targetPoint, false))
return;
location.X = (float)Math.Round(moveLocationX, 1);
location.Y = (float)Math.Round(moveLocationY, 1);
//Check if the player is moving on a entity and call oncolission of that entity
List<Entity> entities = sender.getEntities();
for(int i = 0; i < entities.Count; i++)
{
if(sender.checkCollision(this, entities[i]) && entities[i].getType() != ENTITIES.player)
{
entities[i].onCollision(this);
}
}
}
