Make movement add up identically on every player's computer

When every machine calculates the same moves, tiny differences in how decimals are rounded can add up until characters stand in different places. Whole-number maths avoids that, but the obvious way of dividing breaks for negative values and can overflow. Here are the safe building blocks.

Why this works

Whole numbers are exact, and decimals are close. When many machines must reach the very same result, closeness is not enough, so doing the sums with whole numbers and a fixed way of cutting removes the room for differences.

When not to use it

Skip it when one machine decides where everything is and the others only copy that: ordinary decimals are fine there and much easier. It also costs you the comfort of smooth, free-form maths, so use it only where machines truly must agree.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 3 common mistakes and the fix
• 33 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 "Make movement add up identically on every player's computer" (read_entry online-whole-number-math-for-shared-positions) 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