Attempts to buy items from the store using increments of 1,5,10,50 corresponding to the buy action
Closes the store by pressing the top right button
Gets the component of a specific item in the store
Gets the list of items in the store
Opens the store by talking to a nearby NPC
Checks if a store if currently open
Sets the buy quantity in the store
Returns the name of the store currently open
Gets the buy quantity current selected in the store.