Undertale Boss Battles Script <HD>

Undertale Boss Battles Script: Complete Guide

Pseudocode:

state = "PLAYER_TURN"
while battle_active:
if state == "PLAYER_TURN":
show_menu()
action = get_player_action()
if action == "FIGHT":
damage = calculate_damage()
reduce_enemy_hp(damage)
state = "ENEMY_TURN"
elif action == "ACT":
run_act_script()
state = "ENEMY_TURN"
elif action == "MERCY":
if spare_conditions_met():
state = "END_SPARE"
else:
show_text("... but you refused to spare.")
state = "ENEMY_TURN"
elif action == "ITEM":
use_item()
state = "ENEMY_TURN"
elif state == "ENEMY_TURN":
    attack_pattern = choose_attack_pattern()
    state = "PLAYER_DODGE"
elif state == "PLAYER_DODGE":
    run_bullet_hell(attack_pattern)
    if player_hit:
        reduce_player_hp()
    if player_hp <= 0:
        state = "END_GAME_OVER"
    else:
        state = "PLAYER_TURN"
elif state == "END_SPARE":
    show_text("You showed mercy.")
    battle_active = False
    reward_spare_route()
elif state == "END_KILL":
    show_text("Enemy defeated.")
    battle_active = False
    reward_kill_route()

The Heartbeat (Step Event)

The script must run logic every frame. This is the "heartbeat" of your boss fight. Undertale Boss Battles Script

// Step Event
if (hp <= 0) 
    death_sequence();
    exit;
switch (attack_phase) 
case 0: intro_script(); break;
case 1: phase_one_script(); break;
case 2: transition_script(); break;
case 3: phase_two_script(); break;

10. Dialog Box System

let dialogQueue = [];
function showText(text) 
dialogQueue.push(text);
typewriterEffect(text);
 The Heartbeat (Step Event) The script must run
function typewriterEffect(text) 
let i = 0;
let interval = setInterval(() => 
if (i < text.length) 
dialogBox.innerHTML += text[i];
i++;
 else 
clearInterval(interval);
setTimeout(() => dialogBox.innerHTML = "", 1500);
, 30);

Papyrus Boss Battle Script

[Scene Setup: The player has entered Papyrus's lair. The room is somewhat Spartan, with bones scattered around. Papyrus, a skeleton with a enthusiastic demeanor, greets the player.] with bones scattered around. Papyrus

Papyrus: OH! YOU'RE IN MY LAIR! I wasn’t expecting anyone to, uh, come in here and stuff. I guess I should… get this over with!

[Music: FIGHT! (Papyrus) starts playing.]

Papyrus: I’LL FIGHT YOU! pumps fist I’VE BEEN PRACTICING MY FIGHTING SKILLS! cracks knuckles YOU WON'T BE GOING ANYWHERE!