Count "play on five different days this week" without cheating or off-by-one

Players open a puzzle app three times a day and the counter jumps, or the week is one day too short or too long. Here is how to count real days, which days fall out of the window and when, and what to do when the phone clock lies.

Why this works

Progress is worked out fresh from a plain record of which days the player showed up, instead of being nudged up with each visit. A figure that can be rebuilt from facts cannot drift, double up or get stuck, whatever the app does in between.

When not to use it

Skip it when the goal is about effort inside one sitting, like a long session or many plays in a row. Days played says nothing about that. Count the effort itself there, and use day-counting only for habit goals.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 4 common mistakes and the fix
• A diagram of every state
• 19 lines of example code with 5 checks that pass
• How your AI shows you that it works

Say this to your AI

Use the Spielerando entry "Count "play on five different days this week" without cheating or off-by-one" (read_entry quest-play-on-different-days-window) in my game. Build it step by step, and show me how you checked that it works.

Or skip this and connect the MCP: your AI then finds all of this by itself.Connect the MCP