Discussing the article: "Designing a Strategy State Machine in MQL5: Replacing Nested If-Else Logic with Formal States"

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Check out the new article: Designing a Strategy State Machine in MQL5: Replacing Nested If-Else Logic with Formal States.

Nested if-else logic inside OnTick() creates implicit states that are hard to isolate, debug, and extend without regressions. A formal finite state machine in MQL5 uses an IState interface, a CStrategyContext mediator, and four concrete states to separate detection from behavior. A three-file include structure resolves circular dependencies and keeps declarations, definitions, and instantiation clean, making changes safer and debugging faster.

Author: Ushana Kevin Iorkumbul