Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* AI Combo System for Korean Martial Arts
* Manages multi-hit combo sequences based on trigram stances and archetype signature combos
*/
import { PlayerState } from "@/systems/player";
import { TRIGRAM_TECHNIQUES } from "@/systems/trigram";
import { KoreanTechnique } from "@/systems/vitalpoint";
import { PlayerArchetype, TrigramStance } from "@/types";
import { AIPersonality } from "./AIPersonality";
/**
* Combo sequence for a specific trigram stance
*/
export interface ComboSequence {
readonly stanceId: TrigramStance;
readonly techniques: readonly KoreanTechnique[];
readonly minDistance: number;
readonly maxDistance: number;
readonly requiredKi: number;
readonly requiredStamina: number;
readonly name: {
readonly korean: string;
readonly english: string;
};
}
/**
* Archetype signature combo sequence (2-3 technique chains)
*
* These are special technique sequences that represent each archetype's
* fighting philosophy and preferred combat patterns.
*
* @korean 원형 대표 연계 기술
*/
export interface ArchetypeComboSequence {
readonly archetype: PlayerArchetype;
readonly techniqueIds: readonly string[]; // 2-3 technique IDs in sequence
readonly name: {
readonly korean: string;
readonly english: string;
};
readonly description: {
readonly korean: string;
readonly english: string;
};
}
/**
* Archetype Signature Combos
*
* Each archetype has 2 signature combo sequences that reflect their combat philosophy.
* These combos are prioritized by AI for authentic fighting style representation.
*
* Combo patterns:
* - Musa: Power amplification and defense-to-offense transitions
* - Amsalja: Setup-to-execution nerve strike sequences
* - Hacker: Analysis-to-burst and stun-to-shutdown patterns
* - Jeongbo: Weaken-to-exploit and counter-to-finish sequences
* - Jojik: Chaos-to-brutality and aggression-to-desperation patterns
*
* @korean 원형 대표 연계 기술 정의
*/
export const ARCHETYPE_SIGNATURE_COMBOS: Record<
PlayerArchetype,
readonly ArchetypeComboSequence[]
> = {
[PlayerArchetype.MUSA]: [
{
archetype: PlayerArchetype.MUSA,
techniqueIds: ["musa_thunder_strike", "musa_dragon_fist"],
name: {
korean: "천둥용권",
english: "Thunder Dragon Combo",
},
description: {
korean: "천둥벽력으로 적을 흔들고 용권으로 관통합니다",
english:
"Shake enemy with Thunder Strike, pierce through with Dragon Fist",
},
},
{
archetype: PlayerArchetype.MUSA,
techniqueIds: ["musa_iron_defense", "musa_mountain_breaker"],
name: {
korean: "철벽파산",
english: "Iron Mountain Break",
},
description: {
korean: "철벽방어로 적의 공격을 막고 파산격으로 반격합니다",
english: "Block with Iron Defense, counter with Mountain Breaker",
},
},
],
[PlayerArchetype.AMSALJA]: [
{
archetype: PlayerArchetype.AMSALJA,
techniqueIds: ["amsalja_shadow_strike", "amsalja_silent_death"],
name: {
korean: "암영무음",
english: "Shadow Silent Death",
},
description: {
korean: "암영격으로 신경을 교란하고 무음살로 마무리합니다",
english: "Disrupt nerves with Shadow Strike, finish with Silent Death",
},
},
{
archetype: PlayerArchetype.AMSALJA,
techniqueIds: ["amsalja_nerve_strike", "amsalja_deadly_precision"],
name: {
korean: "신경정밀",
english: "Nerve Precision Combo",
},
description: {
korean: "신경타로 마비시키고 치명정밀로 급소를 공격합니다",
english:
"Paralyze with Nerve Strike, target vitals with Deadly Precision",
},
},
],
[PlayerArchetype.HACKER]: [
{
archetype: PlayerArchetype.HACKER,
techniqueIds: ["hacker_data_strike", "hacker_cyber_overdrive"],
name: {
korean: "데이터가속",
english: "Data Overdrive Burst",
},
description: {
korean:
"데이터 타격으로 분석하고 사이버 가속으로 폭발적 공격을 수행합니다",
english: "Analyze with Data Strike, burst with Cyber Overdrive",
},
},
{
archetype: PlayerArchetype.HACKER,
techniqueIds: ["hacker_electric_shock", "hacker_system_crash"],
name: {
korean: "전격크래시",
english: "Electric System Crash",
},
description: {
korean: "전격으로 기절시키고 시스템 크래시로 무력화합니다",
english: "Stun with Electric Shock, disable with System Crash",
},
},
],
[PlayerArchetype.JEONGBO_YOWON]: [
{
archetype: PlayerArchetype.JEONGBO_YOWON,
techniqueIds: [
"jeongbo_tactical_strike",
"jeongbo_psychological_warfare",
],
name: {
korean: "전술심리",
english: "Tactical Psychology Combo",
},
description: {
korean: "전술타격으로 약점을 노출시키고 심리전으로 정신을 교란합니다",
english:
"Expose weakness with Tactical Strike, disrupt with Psychological Warfare",
},
},
{
archetype: PlayerArchetype.JEONGBO_YOWON,
techniqueIds: [
"jeongbo_counter_intelligence",
"jeongbo_intelligence_strike",
],
name: {
korean: "역정보타격",
english: "Counter Intelligence Strike",
},
description: {
korean: "역정보공작으로 반격하고 정보타격으로 완벽하게 마무리합니다",
english:
"Counter with Counter Intelligence, finish with Intelligence Strike",
},
},
],
[PlayerArchetype.JOJIK_POKRYEOKBAE]: [
{
archetype: PlayerArchetype.JOJIK_POKRYEOKBAE,
techniqueIds: ["jojik_street_brawl", "jojik_brutal_takedown"],
name: {
korean: "거리잔혹",
english: "Street Brutality Combo",
},
description: {
korean: "거리싸움으로 혼란을 주고 잔혹제압으로 무자비하게 쓰러뜨립니다",
english:
"Create chaos with Street Brawl, brutalize with Brutal Takedown",
},
},
{
archetype: PlayerArchetype.JOJIK_POKRYEOKBAE,
techniqueIds: ["jojik_improvised_weapon", "jojik_ruthless_assault"],
name: {
korean: "즉석무자비",
english: "Improvised Ruthless Assault",
},
description: {
korean: "즉석무기로 공격하고 무자비공격으로 자비 없이 마무리합니다",
english:
"Attack with Improvised Weapon, finish ruthlessly with Ruthless Assault",
},
},
],
};
/**
* Get next technique in archetype signature combo
*
* Checks if current technique is part of a signature combo sequence,
* and returns the next technique in that sequence if found.
*
* @korean 원형 대표 연계 기술의 다음 기술 가져오기
*
* @param currentTechniqueId - Current technique ID just executed
* @param archetype - Player archetype
* @returns Next technique ID in combo sequence, or undefined if no combo
*/
export function getNextComboTechnique(
currentTechniqueId: string,
archetype: PlayerArchetype,
): string | undefined {
const combos = ARCHETYPE_SIGNATURE_COMBOS[archetype];
Iif (!combos) {
return undefined;
}
for (const combo of combos) {
const currentIndex = combo.techniqueIds.indexOf(currentTechniqueId);
// Found current technique in this combo
if (currentIndex !== -1 && currentIndex < combo.techniqueIds.length - 1) {
// Return next technique in sequence
return combo.techniqueIds[currentIndex + 1];
}
}
return undefined; // No combo continuation found
}
/**
* AI Combo System manages combo execution and decision-making
*/
export class AIComboSystem {
private comboSequences: Map<TrigramStance, ComboSequence[]>;
private currentCombo: KoreanTechnique[] = [];
private comboProgress = 0;
private lastComboTime = 0;
private readonly comboTimeout = 2000; // 2 seconds to continue combo
constructor() {
this.comboSequences = this.initializeComboSequences();
}
/**
* Initialize combo sequences for each trigram stance
*/
private initializeComboSequences(): Map<TrigramStance, ComboSequence[]> {
const sequences = new Map<TrigramStance, ComboSequence[]>();
// Geon (Heaven) - Direct force combos
sequences.set(TrigramStance.GEON, [
{
stanceId: TrigramStance.GEON,
techniques: this.getTechniqueSequence(TrigramStance.GEON, 3),
minDistance: 80,
maxDistance: 140,
requiredKi: 30,
requiredStamina: 40,
name: {
korean: "천둥벽력 연타",
english: "Thunder Strike Combo",
},
},
]);
// Tae (Lake) - Fluid manipulation combos
sequences.set(TrigramStance.TAE, [
{
stanceId: TrigramStance.TAE,
techniques: this.getTechniqueSequence(TrigramStance.TAE, 3),
minDistance: 70,
maxDistance: 130,
requiredKi: 25,
requiredStamina: 35,
name: {
korean: "유수연타",
english: "Flowing Water Combo",
},
},
]);
// Li (Fire) - Precision strike combos
sequences.set(TrigramStance.LI, [
{
stanceId: TrigramStance.LI,
techniques: this.getTechniqueSequence(TrigramStance.LI, 3),
minDistance: 90,
maxDistance: 150,
requiredKi: 35,
requiredStamina: 30,
name: {
korean: "화염연격",
english: "Flame Strike Series",
},
},
]);
// Jin (Thunder) - Explosive combos
sequences.set(TrigramStance.JIN, [
{
stanceId: TrigramStance.JIN,
techniques: this.getTechniqueSequence(TrigramStance.JIN, 3),
minDistance: 80,
maxDistance: 140,
requiredKi: 40,
requiredStamina: 45,
name: {
korean: "벽력난타",
english: "Lightning Barrage",
},
},
]);
// Son (Wind) - Continuous pressure combos
sequences.set(TrigramStance.SON, [
{
stanceId: TrigramStance.SON,
techniques: this.getTechniqueSequence(TrigramStance.SON, 3),
minDistance: 70,
maxDistance: 130,
requiredKi: 28,
requiredStamina: 38,
name: {
korean: "선풍연쇄",
english: "Whirlwind Chain",
},
},
]);
// Gam (Water) - Adaptive flow combos
sequences.set(TrigramStance.GAM, [
{
stanceId: TrigramStance.GAM,
techniques: this.getTechniqueSequence(TrigramStance.GAM, 3),
minDistance: 75,
maxDistance: 135,
requiredKi: 30,
requiredStamina: 35,
name: {
korean: "수류연환",
english: "Water Flow Sequence",
},
},
]);
// Gan (Mountain) - Defensive counter combos
sequences.set(TrigramStance.GAN, [
{
stanceId: TrigramStance.GAN,
techniques: this.getTechniqueSequence(TrigramStance.GAN, 3),
minDistance: 70,
maxDistance: 130,
requiredKi: 25,
requiredStamina: 40,
name: {
korean: "반석반격",
english: "Mountain Counter",
},
},
]);
// Gon (Earth) - Grounding combos
sequences.set(TrigramStance.GON, [
{
stanceId: TrigramStance.GON,
techniques: this.getTechniqueSequence(TrigramStance.GON, 3),
minDistance: 60,
maxDistance: 120,
requiredKi: 30,
requiredStamina: 50,
name: {
korean: "대지낙타",
english: "Earth Slam Combo",
},
},
]);
return sequences;
}
/**
* Get technique sequence for a stance
*/
private getTechniqueSequence(
stance: TrigramStance,
count: number,
): readonly KoreanTechnique[] {
const techniques = TRIGRAM_TECHNIQUES[stance] ?? [];
// Warn if not enough techniques for full combo (issue #2529727989)
Iif (techniques.length < count) {
console.warn(
`[AIComboSystem] Not enough techniques defined for stance '${stance}'. Requested ${count}, but only ${techniques.length} available. Returning partial combo.`,
);
}
// Return only available techniques
return techniques.slice(0, count);
}
/**
* Calculate distance between two players
*/
private getDistance(player: PlayerState, opponent: PlayerState): number {
const dx = player.position.x - opponent.position.x;
const dy = player.position.y - opponent.position.y;
return Math.sqrt(dx * dx + dy * dy);
}
/**
* Check if AI should continue current combo
*
* Enhanced with:
* - Opponent balance state checking (SHAKEN/VULNERABLE)
* - Combo length limit (max 3 techniques)
* - Stamina threshold (>20 for combo continuation)
*
* @korean 연계 기술 계속 여부 판단
*/
shouldContinueCombo(
player: PlayerState,
opponent: PlayerState,
personality: AIPersonality,
): boolean {
const now = Date.now();
// No active combo - check if combo exists
if (this.currentCombo.length === 0) {
return false;
}
// Combo timed out
Iif (now - this.lastComboTime > this.comboTimeout) {
this.resetCombo();
return false;
}
// Combo completed
Iif (this.comboProgress >= this.currentCombo.length) {
this.resetCombo();
return false;
}
// Combo length limit: max 3 techniques
Iif (this.comboProgress >= 3) {
this.resetCombo();
return false;
}
// Korean martial arts philosophy: flow like water
const distance = this.getDistance(player, opponent);
const distanceOk = distance < 120;
// Stamina threshold for combo continuation (>20)
const hasResources = player.ki >= 10 && player.stamina > 20;
// Balance thresholds for vulnerability detection
// Balance is a numeric value (0-100) representing stability
// Values below 30 indicate SHAKEN/VULNERABLE states in combat
const VULNERABLE_BALANCE_THRESHOLD = 30;
// Check opponent balance state - continue combo if opponent is vulnerable
// Using boolean OR (||) intentionally here - these are boolean conditions, not nullish coalescing
const isStunned = opponent.isStunned ?? false;
const isLowHealth =
(opponent.health ?? 0) < (opponent.maxHealth ?? 100) * 0.3;
const isLowBalance =
(opponent.balance ?? 100) < VULNERABLE_BALANCE_THRESHOLD;
// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing -- intentional boolean OR for vulnerability check
const opponentVulnerable = isLowBalance || isStunned || isLowHealth;
// Higher chance to continue if opponent is vulnerable
const baseChance = personality.comboTendency;
const vulnerabilityBonus = opponentVulnerable ? 0.3 : 0;
const finalContinueChance = Math.min(0.95, baseChance + vulnerabilityBonus);
const randomChance = Math.random() < finalContinueChance;
return distanceOk && hasResources && randomChance;
}
/**
* Start a new combo sequence
*/
startCombo(
player: PlayerState,
opponent: PlayerState,
personality: AIPersonality,
): boolean {
// Check if suitable for combo
const distance = this.getDistance(player, opponent);
const sequences = this.comboSequences.get(player.currentStance);
Iif (!sequences || sequences.length === 0) {
return false;
}
// Find suitable combo for current situation
const suitableCombo = sequences.find(
(seq) =>
distance >= seq.minDistance &&
distance <= seq.maxDistance &&
player.ki >= seq.requiredKi &&
player.stamina >= seq.requiredStamina,
);
if (!suitableCombo) {
return false;
}
// Random chance based on personality
Iif (Math.random() > personality.comboTendency) {
return false;
}
// Start combo
this.currentCombo = [...suitableCombo.techniques];
this.comboProgress = 0;
this.lastComboTime = Date.now();
return true;
}
/**
* Get next technique in combo
*/
getNextComboTechnique(): KoreanTechnique | null {
if (
this.comboProgress >= this.currentCombo.length ||
this.currentCombo.length === 0
) {
return null;
}
const technique = this.currentCombo[this.comboProgress];
this.comboProgress++;
this.lastComboTime = Date.now();
return technique;
}
/**
* Reset current combo
*/
resetCombo(): void {
this.currentCombo = [];
this.comboProgress = 0;
this.lastComboTime = 0;
}
/**
* Check if combo is active (fix for issue #2529727999)
*/
isComboActive(): boolean {
return (
this.currentCombo.length > 0 &&
this.comboProgress >= 0 &&
this.comboProgress < this.currentCombo.length &&
Date.now() - this.lastComboTime < this.comboTimeout
);
}
/**
* Get combo progress information
*/
getComboInfo(): {
active: boolean;
progress: number;
total: number;
percentage: number;
} {
return {
active: this.isComboActive(),
progress: this.comboProgress,
total: this.currentCombo.length,
percentage:
this.currentCombo.length > 0
? (this.comboProgress / this.currentCombo.length) * 100
: 0,
};
}
/**
* Get available combos for stance
*/
getAvailableCombos(stance: TrigramStance): readonly ComboSequence[] {
return this.comboSequences.get(stance) ?? [];
}
}
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