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* useCombatActions Hook - Combat Action Handlers
*
* Custom hook for managing combat action handlers.
* Consolidates player attack, defend, technique, and AI action logic.
*
* Performance:
* - Memoized callbacks to prevent recreation
* - Centralized action logic for better maintainability
* - Reduces main component complexity
*
* @param config Combat action configuration
* @returns Combat action handlers
*
* @example
* ```typescript
* const {
* handleAttack,
* handleDefend,
* handleTechniqueExecute,
* handleStanceSwitch,
* handleAIAttack,
* handleAIDefend,
* handleAITechnique,
* moveAIPlayer
* } = useCombatActions({
* validPlayers,
* playerPositions,
* combatState,
* combatActions,
* combatSystem,
* onPlayerUpdate,
* addCombatMessage,
* addHitEffect,
* arenaBounds
* });
* ```
*/
import { PlayerState } from "@/systems";
import { CombatSystem } from "@/systems/CombatSystem";
import { Position, TrigramStance, Technique } from "@/types";
import { HitEffectType } from "@/systems/effects";
import { useCallback } from "react";
import { CombatScreenState, CombatActions } from "./useCombatState";
import { AttackIntensity } from "./useCombatAudio";
import { KoreanTechnique } from "@/systems/vitalpoint/types";
import { KoreanTechniquesSystem } from "@/systems/trigram/KoreanTechniques";
import { getVitalPointById } from "@/systems/vitalpoint/KoreanVitalPoints";
export interface UseCombatActionsConfig {
readonly validPlayers: readonly [PlayerState, PlayerState];
readonly playerPositions: readonly [Position, Position];
readonly combatState: CombatScreenState;
readonly combatActions: CombatActions;
readonly combatSystem: CombatSystem;
readonly onPlayerUpdate: (playerIndex: number, updates: Partial<PlayerState>) => void;
readonly addCombatMessage: (korean: string, english: string) => void;
readonly addHitEffect: (type: HitEffectType, position: Position, intensity?: number) => void;
readonly arenaBounds: {
readonly x: number;
readonly y: number;
readonly width: number;
readonly height: number;
};
readonly combatAudio?: {
readonly playAttackSound: (intensity?: AttackIntensity) => Promise<void>;
readonly playHitSound: (damage: number) => Promise<void>;
readonly playBlockSound: (guardBroken?: boolean) => Promise<void>;
readonly playDodgeSound: () => Promise<void>;
readonly playStanceChangeSound: () => Promise<void>;
readonly playSpecialTechniqueSound: () => Promise<void>;
};
}
export interface UseCombatActionsReturn {
readonly handleAttack: (technique?: Technique) => void;
readonly handleDefend: () => void;
readonly handleTechniqueExecute: () => void;
readonly handleStanceSwitch: (stance: TrigramStance) => void;
readonly handleAIAttack: (technique?: KoreanTechnique, targetVitalPoint?: string) => void;
readonly handleAIDefend: () => void;
readonly handleAITechnique: (technique?: KoreanTechnique, targetVitalPoint?: string) => void;
readonly moveAIPlayer: (targetPos: Position) => void;
}
/**
* Helper function to convert Technique to KoreanTechnique format
* @param technique - The technique to convert
* @param stance - Current player stance
* @returns KoreanTechnique compatible with CombatSystem
*/
function convertTechniqueToKorean(technique: Technique, stance: TrigramStance): KoreanTechnique {
return {
id: technique.id,
name: {
korean: technique.name.korean,
english: technique.name.english,
romanized: technique.name.romanized ?? "",
},
koreanName: technique.name.korean,
englishName: technique.name.english,
romanized: technique.name.romanized ?? "",
description: {
korean: technique.description.korean,
english: technique.description.english,
},
stance: technique.requiredStance ?? stance,
type: "attack",
damageType: technique.damageType,
damage: (technique.damage.min + technique.damage.max) / 2, // Use average damage
kiCost: technique.kiCost,
staminaCost: technique.staminaCost,
accuracy: 0.85, // Default accuracy
range: 1.0,
executionTime: technique.animationDuration ?? 400,
recoveryTime: 300,
critChance: technique.criticalChance ?? 0.1,
critMultiplier: 1.5,
effects: [],
};
}
/**
* Custom hook for combat action handlers
*/
export function useCombatActions(config: UseCombatActionsConfig): UseCombatActionsReturn {
const {
validPlayers,
playerPositions,
combatState,
combatActions,
combatSystem,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
arenaBounds,
combatAudio,
} = config;
// Player attack handler
const handleAttack = useCallback((technique?: Technique) => {
if (combatState.isExecutingTechnique || !combatState.roundStarted || combatState.roundEnded) return;
const player = validPlayers[0];
const currentStance = player.currentStance;
const archetype = player.archetype;
// Use provided technique or select from stance techniques
let attackTechnique: KoreanTechnique;
if (technique) {
// Convert selected technique to KoreanTechnique format
attackTechnique = convertTechniqueToKorean(technique, currentStance);
} else {
// Get techniques for current stance and archetype
const availableTechniques = KoreanTechniquesSystem.getAllAvailableTechniques(
currentStance,
archetype
);
Iif (availableTechniques.length === 0) {
console.warn(`No techniques found for stance: ${currentStance}, archetype: ${archetype}`);
addCombatMessage("기술 없음", "No techniques available");
return;
}
// Select primary technique (first in list)
const selectedTechnique = availableTechniques[0];
// Check if player has sufficient resources
if (!KoreanTechniquesSystem.canExecuteTechnique(player, selectedTechnique)) {
addCombatMessage("기력/체력 부족", "Insufficient Ki/Stamina");
return;
}
attackTechnique = selectedTechnique;
}
combatActions.setExecutingTechnique(true);
// Play attack sound based on technique damage/intensity
const damage = attackTechnique.damage ?? 10;
const intensity: AttackIntensity =
damage >= 40 ? "critical" :
damage >= 25 ? "heavy" :
damage >= 10 ? "medium" : "light";
combatAudio?.playAttackSound(intensity);
// Use combat system for proper calculation
const result = combatSystem.resolveAttack(
validPlayers[0],
validPlayers[1],
attackTechnique
);
const effectType = result.hit
? result.isCritical
? HitEffectType.CRITICAL_HIT
: HitEffectType.HIT
: HitEffectType.MISS;
addHitEffect(effectType, playerPositions[0], result.hit ? 1 : 0.5);
if (result.hit) {
// Play hit sound based on damage
combatAudio?.playHitSound(result.damage);
// Combo tracking: reset combo if too much time passed
const now = Date.now();
const timeSinceLastHit = now - combatState.lastHitTime;
const newCombo = timeSinceLastHit < 2000 ? combatState.comboCount + 1 : 1;
combatActions.setComboCount(newCombo);
combatActions.setLastHitTime(now);
// Apply damage through combat system
const { updatedAttacker, updatedDefender } =
combatSystem.applyCombatResult(
result,
validPlayers[0],
validPlayers[1]
);
onPlayerUpdate(0, updatedAttacker);
onPlayerUpdate(1, updatedDefender);
// Display technique name in combat log
const techniqueNameKorean = attackTechnique.koreanName || attackTechnique.name.korean;
const techniqueNameEnglish = attackTechnique.englishName || attackTechnique.name.english;
Iif (result.isCritical) {
addCombatMessage(
`치명타! ${techniqueNameKorean}`,
`Critical Hit! ${techniqueNameEnglish}`
);
I} else if (newCombo > 2) {
addCombatMessage(
`${newCombo} 연속! ${techniqueNameKorean}`,
`${newCombo} Combo! ${techniqueNameEnglish}`
);
} else {
addCombatMessage(
`${techniqueNameKorean} 성공!`,
`${techniqueNameEnglish} Hit!`
);
}
} else E{
combatActions.resetCombo();
const techniqueNameKorean = attackTechnique.koreanName || attackTechnique.name.korean;
const techniqueNameEnglish = attackTechnique.englishName || attackTechnique.name.english;
addCombatMessage(
`${techniqueNameKorean} 빗나감`,
`${techniqueNameEnglish} Missed`
);
}
setTimeout(() => combatActions.setExecutingTechnique(false), 500);
}, [
validPlayers,
playerPositions,
combatState.isExecutingTechnique,
combatState.roundStarted,
combatState.roundEnded,
combatState.comboCount,
combatState.lastHitTime,
combatActions,
combatSystem,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
combatAudio,
]);
// Player defend handler
const handleDefend = useCallback(() => {
if (!combatState.roundStarted || combatState.roundEnded) return;
// Play block sound
combatAudio?.playBlockSound(false);
onPlayerUpdate(0, { isBlocking: true });
addCombatMessage("방어 자세", "Defensive Stance");
addHitEffect(HitEffectType.BLOCK, playerPositions[0], 0.8);
setTimeout(() => {
onPlayerUpdate(0, { isBlocking: false });
}, 1000);
}, [
combatState.roundStarted,
combatState.roundEnded,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
playerPositions,
combatAudio,
]);
// Player technique handler
const handleTechniqueExecute = useCallback(() => {
Iif (combatState.isExecutingTechnique || !combatState.roundStarted || combatState.roundEnded) return;
if (validPlayers[0].ki < 10 || validPlayers[0].stamina < 15) {
addCombatMessage("기력/체력 부족", "Insufficient Ki/Stamina");
return;
}
combatActions.setExecutingTechnique(true);
// Play special technique sound
combatAudio?.playSpecialTechniqueSound();
addHitEffect(HitEffectType.CRITICAL_HIT, playerPositions[0], 1.5);
// Screen shake effect for impact
const shakeIntensity = 8;
const shakeFrames = [
{ x: shakeIntensity, y: -shakeIntensity * 0.5 },
{ x: -shakeIntensity * 0.7, y: shakeIntensity * 0.8 },
{ x: shakeIntensity * 0.5, y: shakeIntensity * 0.3 },
{ x: -shakeIntensity * 0.3, y: -shakeIntensity * 0.6 },
{ x: 0, y: 0 },
];
shakeFrames.forEach((shake, index) => {
setTimeout(() => combatActions.setScreenShake(shake), index * 50);
});
const distance = Math.sqrt(
Math.pow(playerPositions[0].x - playerPositions[1].x, 2) +
Math.pow(playerPositions[0].y - playerPositions[1].y, 2)
);
Iif (distance < 150) {
// Play heavy hit sound for technique
combatAudio?.playHitSound(30);
onPlayerUpdate(1, {
health: Math.max(0, validPlayers[1].health - 25),
hitsTaken: validPlayers[1].hitsTaken + 1,
});
addCombatMessage("특수 기술 성공!", "Special Technique Hit!");
} else {
addCombatMessage("기술 실패", "Technique Failed");
}
// Consume resources
onPlayerUpdate(0, {
ki: Math.max(0, validPlayers[0].ki - 10),
stamina: Math.max(0, validPlayers[0].stamina - 15),
});
setTimeout(() => combatActions.setExecutingTechnique(false), 800);
}, [
validPlayers,
playerPositions,
combatState.isExecutingTechnique,
combatState.roundStarted,
combatState.roundEnded,
combatActions,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
combatAudio,
]);
// Player stance switch handler
const handleStanceSwitch = useCallback(
(stance: TrigramStance) => {
if (!combatState.roundStarted || combatState.roundEnded) return;
// Play stance change sound
combatAudio?.playStanceChangeSound();
onPlayerUpdate(0, { currentStance: stance });
addCombatMessage(`자세 변경: ${stance}`, `Stance Change: ${stance}`);
addHitEffect(HitEffectType.STATUS_EFFECT, playerPositions[0], 0.6);
},
[
combatState.roundStarted,
combatState.roundEnded,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
playerPositions,
combatAudio,
]
);
/**
* Helper function to create AI technique objects
* Reduces code duplication between basic attacks and special techniques
*/
const createAITechnique = useCallback(
(type: 'basic' | 'special', aiPlayer: PlayerState) => {
if (type === 'basic') {
return {
id: "ai_basic_attack",
name: {
korean: "AI 기본공격",
english: "AI Basic Attack",
romanized: "ai_gibon_gonggyeok",
},
koreanName: "AI 기본공격",
englishName: "AI Basic Attack",
romanized: "ai_gibon_gonggyeok",
description: { korean: "AI 기본 공격", english: "AI basic attack" },
stance: aiPlayer.currentStance,
type: "attack" as const,
damageType: "physical" as const,
damage: 15,
kiCost: 5,
staminaCost: 8,
accuracy: 0.8,
range: 1.2,
executionTime: 400,
recoveryTime: 300,
critChance: 0.1,
critMultiplier: 1.5,
effects: [],
};
} else {
return {
id: "ai_special_technique",
name: {
korean: "AI 특수기술",
english: "AI Special Technique",
romanized: "ai_teuksu_gisul",
},
koreanName: "AI 특수기술",
englishName: "AI Special Technique",
romanized: "ai_teuksu_gisul",
description: { korean: "AI 특수 기술", english: "AI special technique" },
stance: aiPlayer.currentStance,
type: "technique" as const,
damageType: "physical" as const,
damage: 25,
kiCost: 10,
staminaCost: 15,
accuracy: 0.85,
range: 1.5,
executionTime: 600,
recoveryTime: 800,
critChance: 0.15,
critMultiplier: 1.8,
effects: [],
};
}
},
[]
);
/**
* Helper function to determine hit effect type based on combat result
* Reduces duplication between attack and technique handlers
*/
const getHitEffectType = useCallback(
(result: { hit: boolean; isCritical?: boolean }): HitEffectType => {
if (!result.hit) return HitEffectType.MISS;
return result.isCritical ? HitEffectType.CRITICAL_HIT : HitEffectType.HIT;
},
[]
);
/**
* AI attack handler with technique and vital point targeting
*
* @param technique - Optional Korean martial arts technique to execute. If not provided, creates a basic attack.
* @param targetVitalPoint - Optional vital point ID to target for increased damage effectiveness.
*/
const handleAIAttack = useCallback((technique?: KoreanTechnique, targetVitalPoint?: string) => {
const aiPlayer = validPlayers[1];
const targetPlayer = validPlayers[0];
// Use provided technique or create basic attack technique
const attackTechnique = technique ?? createAITechnique('basic', aiPlayer);
// Play attack sound based on technique damage/intensity (consistent with player)
const damage = attackTechnique.damage ?? 10;
const intensity: AttackIntensity =
damage >= 40 ? "critical" :
damage >= 25 ? "heavy" :
damage >= 10 ? "medium" : "light";
combatAudio?.playAttackSound(intensity);
// Use combat system for proper calculation with vital point targeting
const result = combatSystem.resolveAttack(
aiPlayer,
targetPlayer,
attackTechnique,
targetVitalPoint // Pass vital point ID for targeting
);
const effectType = getHitEffectType(result);
addHitEffect(effectType, playerPositions[1], result.hit ? 1 : 0.5);
if (result.hit) {
// Play hit sound based on damage
combatAudio?.playHitSound(result.damage);
// Apply damage through combat system (deducts resources)
const { updatedAttacker, updatedDefender } =
combatSystem.applyCombatResult(
result,
aiPlayer,
targetPlayer
);
onPlayerUpdate(1, updatedAttacker);
onPlayerUpdate(0, updatedDefender);
// Enhanced combat message with vital point info
Iif (result.vitalPointHit && targetVitalPoint) {
const vitalPoint = getVitalPointById(targetVitalPoint);
const vpName = vitalPoint ? vitalPoint.names.korean : targetVitalPoint;
addCombatMessage(
`AI 급소 타격! ${vpName}`,
`AI Vital Point Hit! ${vitalPoint?.names.english ?? targetVitalPoint}`
);
I} else if (result.isCritical) {
addCombatMessage("AI 치명타!", "AI Critical Hit!");
} else {
addCombatMessage("AI 공격 성공!", "AI Attack Hit!");
}
} else {
// Consume resources on miss for consistency with technique behavior
onPlayerUpdate(1, {
ki: Math.max(0, aiPlayer.ki - attackTechnique.kiCost),
stamina: Math.max(0, aiPlayer.stamina - attackTechnique.staminaCost),
});
addCombatMessage("AI 공격 빗나감", "AI Attack Missed");
}
}, [
validPlayers,
playerPositions,
combatSystem,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
combatAudio,
createAITechnique,
getHitEffectType,
]);
// AI defend handler
const handleAIDefend = useCallback(() => {
// Play block sound
combatAudio?.playBlockSound(false);
onPlayerUpdate(1, { isBlocking: true });
addCombatMessage("AI 방어 자세", "AI Defensive Stance");
addHitEffect(HitEffectType.BLOCK, playerPositions[1], 0.8);
setTimeout(() => {
onPlayerUpdate(1, { isBlocking: false });
}, 1000);
}, [
onPlayerUpdate,
addCombatMessage,
addHitEffect,
playerPositions,
combatAudio,
]);
/**
* AI technique handler with technique and vital point targeting
*
* @param technique - Optional special Korean martial arts technique to execute. If not provided, creates a special technique.
* @param targetVitalPoint - Optional vital point ID to target for increased damage effectiveness.
*/
const handleAITechnique = useCallback((technique?: KoreanTechnique, targetVitalPoint?: string) => {
const aiPlayer = validPlayers[1];
const targetPlayer = validPlayers[0];
// Use provided technique or create special technique
const specialTechnique = technique ?? createAITechnique('special', aiPlayer);
// Check if AI has sufficient resources for the technique
if (aiPlayer.ki < specialTechnique.kiCost || aiPlayer.stamina < specialTechnique.staminaCost) {
handleAIAttack(undefined, targetVitalPoint); // Fallback to basic attack with same targeting
return;
}
// Play special technique sound
combatAudio?.playSpecialTechniqueSound();
// Use combat system for proper calculation with vital point targeting
const result = combatSystem.resolveAttack(
aiPlayer,
targetPlayer,
specialTechnique,
targetVitalPoint // Pass vital point ID for targeting
);
const effectType = result.hit
? HitEffectType.CRITICAL_HIT
: HitEffectType.MISS;
addHitEffect(effectType, playerPositions[1], result.hit ? 1.5 : 0.5);
if (result.hit) {
// Play heavy hit sound for technique
combatAudio?.playHitSound(result.damage);
// Apply damage through combat system (deducts resources)
const { updatedAttacker, updatedDefender } =
combatSystem.applyCombatResult(
result,
aiPlayer,
targetPlayer
);
onPlayerUpdate(1, updatedAttacker);
onPlayerUpdate(0, updatedDefender);
// Enhanced combat message with vital point info
Iif (result.vitalPointHit && targetVitalPoint) {
const vitalPoint = getVitalPointById(targetVitalPoint);
const vpName = vitalPoint ? vitalPoint.names.korean : targetVitalPoint;
addCombatMessage(
`AI 특수 급소 기술! ${vpName}`,
`AI Special Vital Point Technique! ${vitalPoint?.names.english ?? targetVitalPoint}`
);
} else {
addCombatMessage("AI 특수 기술!", "AI Special Technique!");
}
} else {
// Consume resources on miss (technique was attempted)
onPlayerUpdate(1, {
ki: Math.max(0, aiPlayer.ki - specialTechnique.kiCost),
stamina: Math.max(0, aiPlayer.stamina - specialTechnique.staminaCost),
});
addCombatMessage("AI 기술 빗나감", "AI Technique Missed");
}
}, [
validPlayers,
playerPositions,
combatSystem,
onPlayerUpdate,
addCombatMessage,
addHitEffect,
handleAIAttack,
combatAudio,
createAITechnique,
]);
// AI movement handler
const moveAIPlayer = useCallback(
(targetPos: Position) => {
const currentPos = playerPositions[1];
// Movement speed calibrated for 8m×8m arena with realistic combat closing speed
// Arena width is dynamic: arenaBounds.width is in pixels and represents an 8m-wide arena, so pixelsPerMeter = arenaBounds.width / 8
// Combat closing speed: ~2.5 m/s (fast tactical approach, not slow walking)
// Real fights are over in 4-5 seconds - AI must close distance quickly
// Calculation: 2.5 m/s × pixelsPerMeter / 20 calls/s = px/call
const pixelsPerMeter = arenaBounds.width / 8;
const speed = (2.5 * pixelsPerMeter) / 20;
const dx = targetPos.x - currentPos.x;
const dy = targetPos.y - currentPos.y;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance > 5) {
const newPos = {
x: currentPos.x + (dx / distance) * speed,
y: currentPos.y + (dy / distance) * speed,
};
// Keep AI within bounds
newPos.x = Math.max(
arenaBounds.x,
Math.min(arenaBounds.x + arenaBounds.width - 60, newPos.x)
);
newPos.y = Math.max(
arenaBounds.y,
Math.min(arenaBounds.y + arenaBounds.height - 180, newPos.y)
);
// Update position through parent - this should trigger playerPositions state update in parent
onPlayerUpdate(1, { position: newPos });
}
},
[playerPositions, arenaBounds, onPlayerUpdate]
);
return {
handleAttack,
handleDefend,
handleTechniqueExecute,
handleStanceSwitch,
handleAIAttack,
handleAIDefend,
handleAITechnique,
moveAIPlayer,
};
}
|