Every formula should have one and only one output. The basic formula class is:

public abstract class Formula<OUTPUT_TYPE> {}

All custom formulas should be derived from this class.

On this basis, we construct two types of formulas, Cache, and Pure Formula.

Cache Formula

• T, the output type, the type you want to cache.
• IC, the type of Item Component.

public abstract class ItemAttributeCacheFormula<T, IC> : Formula<T> {}

For example, the int cache formula would be like this.

public class IntCacheFormula : ItemAttributeCacheFormula<int, IntComponent> {}

According to this format, you can replace the corresponding data type and Item Component.

As well as the AllCache formula.

public abstract class ItemAttributeAllCacheFormula<T, IC> : Formula<List<T>> {}

public class Vector3AllCacheFormula : 
	ItemAttributeAllCacheFormula<Vector3, Vector3Component> {}