Oxidizer v0.6.3

Changed

• Rhai editor definitions now carry types for instance members too (fn get_surface_speed(obj: Obj) -> float), with the game types that have each member in its description. A member that game types define differently keeps ?. Types are named as scripts see them: int, float, bool, String, or the game type.
• The definitions are rewritten when Oxidizer updates too, not only when the game does.