up3

server/item/category/category.go

@@ -0,0 +1,65 @@
+package category
+
+// Category represents the category a custom item will be displayed in, in the creative inventory.
+type Category struct {
+	group    string
+	category uint8
+}
+
+// Construction is the first tab in the creative inventory and usually contains blocks that are more for decoration and
+// building than actual functionality.
+func Construction() Category {
+	return Category{category: 1}
+}
+
+// Nature is the fourth tab in the creative inventory and usually contains blocks and items that can be found naturally
+// in vanilla-generated world.
+func Nature() Category {
+	return Category{category: 2}
+}
+
+// Equipment is the second tab in the creative inventory and usually contains armour, weapons and tools.
+func Equipment() Category {
+	return Category{category: 3}
+}
+
+// Items is the third tab in the creative inventory and usually contains blocks and items that do not come under any
+// other category, such as minerals, mob drops, containers and redstone etc.
+func Items() Category {
+	return Category{category: 4}
+}
+
+// Uint8 ...
+func (c Category) Uint8() uint8 {
+	return c.category
+}
+
+// WithGroup returns the category with the provided subgroup. This can be used to put an item inside a group such as
+// swords, food or different types of blocks.
+func (c Category) WithGroup(group string) Category {
+	c.group = group
+	return c
+}
+
+// String ...
+func (c Category) String() string {
+	switch c.category {
+	case 1:
+		return "construction"
+	case 2:
+		return "nature"
+	case 3:
+		return "equipment"
+	case 4:
+		return "items"
+	}
+	panic("should never happen")
+}
+
+// Group ...
+func (c Category) Group() string {
+	if len(c.group) > 0 {
+		return "itemGroup.name." + c.group
+	}
+	return ""
+}