My health bar stops just short of full and the check for full never passes

Small healing amounts add up to almost, but not quite, the whole bar. A plain test for full then fails for no visible reason. This entry shows how to count in whole small units so the total is exact, even with uneven frame times.

Why this works

Computers cannot store most decimal fractions exactly, so repeated addition drifts by tiny amounts. Whole numbers are exact, so counting in small whole units and carrying the remainder gives the same total every time.

When not to use it

If your bar is shown as whole hearts and only changes in whole steps, there is nothing to drift. Use whole numbers directly.

In the full entry

• What to build, step by step
• Starting values and the reason for each
• 2 common mistakes and the fix
• 30 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 "My health bar stops just short of full and the check for full never passes" (read_entry survival-health-bar-never-reaches-full) 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