How many different playthroughs does my branching story really have?

Ten small choices that rejoin do not make ten stories, and they do not make a thousand situations to test either. This entry counts both numbers, so you know whether to test every road or only every situation a scene can start in.

Why this works

What a scene can depend on is the situation it is entered in, not the road taken to get there. Two different roads that leave the same facts behind need only one test, which is why the real workload is much smaller than the road count.

When not to use it

Misleading when a scene's content depends on the order of events or on the exact road, such as a story that remembers a sequence. Track that history as part of the situation, or you will undercount what needs testing.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• 54 lines of example code with 3 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "How many different playthroughs does my branching story really have?" (read_entry playthrough-count-versus-states-to-test) in my game. Build it step by step, and show me how you checked that it works.

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