45 lines
792 B
Go
45 lines
792 B
Go
package arn
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import "errors"
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// InventorySlot ...
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type InventorySlot struct {
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ItemID string `json:"itemId"`
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Quantity uint `json:"quantity"`
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}
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// IsEmpty ...
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func (slot *InventorySlot) IsEmpty() bool {
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return slot.ItemID == ""
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}
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// Item ...
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func (slot *InventorySlot) Item() *ShopItem {
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if slot.ItemID == "" {
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return nil
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}
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item, _ := GetShopItem(slot.ItemID)
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return item
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}
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// Decrease reduces the quantity by the given number.
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func (slot *InventorySlot) Decrease(count uint) error {
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if slot.Quantity < count {
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return errors.New("Not enough items")
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}
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slot.Quantity -= count
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if slot.Quantity == 0 {
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slot.ItemID = ""
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}
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return nil
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}
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// Increase increases the quantity by the given number.
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func (slot *InventorySlot) Increase(count uint) {
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slot.Quantity += count
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}
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