Yu-Gi-Oh life point counter

How it works

Each player is tracked independently with a starting total set by the preset buttons (8000, 4000, or 16000), and every quick-damage button, custom damage/gain entry, and halve-LP action updates that player's total in place, clamped so it never drops below 0, alongside a shared coin toss, d6 roll, and count-up timer for the rest of the duel.

FAQ

Why does halving an odd Life Point total round up instead of down?

The halve button uses Math.ceil(), matching the official Yu-Gi-Oh ruling that Life Point halving always rounds up, so 4001 LP becomes 2001, not 2000.

Can a player's Life Points go below 0?

No — damage is clamped with Math.max(0, ...), so LP always stops at exactly 0 instead of showing a negative number.