-- Lua pseudo for Sans turn function sans_turn() if player.action == "FIGHT" and not sans.can_be_hit then show_text("nice try, kid.") return end sans.attack() sans.can_be_hit = true wait(60 frames) sans.can_be_hit = false end
This article dissects the —the logic, code structure, and creative principles behind recreating these encounters. Whether you’re building a fangame, analyzing Undertale’s engine, or just fascinated by game design, this guide covers event triggers, attack patterns, dialogue trees, mercy mechanics, and post-battle consequences. Undertale Boss Battles Script
LOOP while (Boss.HP > 0 AND Player.HP > 0): IF PlayerTurn: Display "ACT", "FIGHT", "ITEM", "MERCY" HandlePlayerChoice() ApplyEffects() PlayerTurn = FALSE ELSE: ChooseBossAttack() StartBulletPattern() ApplyDamageToPlayer() PlayerTurn = TRUE END LOOP -- Lua pseudo for Sans turn function sans_turn() if player