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Inlined Subclasses

C4G supports nested data structures directly within a single sheet row using dot notation in column headers.

Overview​

Some game configs contain properties that belong to a typed sub-object — for example, a reward with both an amount and a type. Without inlined subclasses, such structures would require separate sheets or manual post-processing.

Inlined subclasses let you express sub-objects inline within a single sheet row using a simple naming convention.

Column Header Convention​

Use dot notation to declare a subclass property: SubTypeName.PropertyName.

Inlined subclass example

During sheet parsing, any column header containing a dot is split into a subtype name and a property name. Subtypes are collected per config and referenced by index, so the generated code reconstructs the nested object without extra sheets or runtime lookups.

Example​

If you have a Reward sub-object with Amount and Type properties, name your columns:

Reward.Amount    Reward.Type
100              Gold
50               Gem

C4G will generate a Reward class and wire it up automatically.

Constraints​

  • A dot in a column header is always interpreted as a subtype separator.
  • Column names that use dots for any other purpose will be misinterpreted and must be renamed.