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* ComboCounter - Combo count and timing window display
*
* Shows current combo count and visual timing indicator for combo continuation.
* Korean/English bilingual with Korean cyberpunk theming. Displays optimal
* timing window for chaining techniques.
*
* Features:
* - Bilingual labels: "연속 공격 | Combo"
* - Combo count display with multiplier
* - Visual timing window indicator
* - Color-coded timing feedback (perfect/good/miss)
* - Korean cyberpunk aesthetic
* - WCAG AA contrast compliance
* - Mobile-optimized sizing
*
* @module components/ui/combat/ComboCounter
* @category Combat UI
* @korean 콤보카운터 - 연속 공격 카운터 및 타이밍 표시기
*/
import React, { useMemo, useEffect, useState } from "react";
import { KOREAN_COLORS } from "../../../types/constants"; // eslint-disable-line no-restricted-imports -- This UI component directly uses color constants
import { hexToRgbaString } from "../../../utils/colorUtils";
/**
* Props for ComboCounter component
*/
export interface ComboCounterProps {
/** Current combo count */
readonly comboCount: number;
/** Timing window for next technique (milliseconds) */
readonly comboWindow?: number;
/** Time elapsed since last technique (milliseconds) */
readonly timeSinceLastHit?: number;
/** Whether combo is currently active */
readonly isActive: boolean;
/** Whether to show on mobile devices */
readonly showOnMobile?: boolean;
/** Additional CSS classes */
readonly className?: string;
}
/**
* Get timing quality based on elapsed time and window
* 타이밍 품질 판정
*/
const getTimingQuality = (
elapsed: number,
window: number
): "perfect" | "good" | "miss" => {
const ratio = elapsed / window;
if (ratio <= 0.5) {
return "perfect"; // First half of window
} else if (ratio <= 1.0) {
return "good"; // Second half of window
} else {
return "miss"; // Window expired
}
};
/**
* Get timing color based on quality
* 타이밍에 따른 색상 결정
*/
const getTimingColor = (quality: "perfect" | "good" | "miss"): string => {
switch (quality) {
case "perfect":
return `#${KOREAN_COLORS.ACCENT_GREEN.toString(16).padStart(6, "0")}`;
case "good":
return `#${KOREAN_COLORS.ACCENT_YELLOW.toString(16).padStart(6, "0")}`;
case "miss":
return `#${KOREAN_COLORS.ACCENT_RED.toString(16).padStart(6, "0")}`;
}
};
/**
* ComboCounter Component
*
* Displays combo count and timing window for Son (Wind) stance combo chains.
* Provides visual feedback for optimal technique timing within combo flow.
*
* @example
* ```tsx
* const [comboState, setComboState] = useState({
* count: 0,
* lastHitTime: 0,
* window: 200,
* });
*
* // On technique hit
* const handleTechniqueHit = (technique: TrigramStanceTechnique) => {
* const now = Date.now();
* const elapsed = now - comboState.lastHitTime;
*
* if (elapsed <= comboState.window) {
* // Combo continues
* setComboState({
* count: comboState.count + 1,
* lastHitTime: now,
* window: technique.comboWindow || 200,
* });
* } else {
* // Combo resets
* setComboState({
* count: 1,
* lastHitTime: now,
* window: technique.comboWindow || 200,
* });
* }
* };
*
* <ComboCounter
* comboCount={comboState.count}
* comboWindow={comboState.window}
* timeSinceLastHit={Date.now() - comboState.lastHitTime}
* isActive={comboState.count > 0}
* showOnMobile={true}
* />
* ```
*/
export const ComboCounter: React.FC<ComboCounterProps> = ({
comboCount,
comboWindow = 200,
timeSinceLastHit = 0,
isActive,
showOnMobile = true,
className = "",
}) => {
const [animateCount, setAnimateCount] = useState(false);
const timingQuality = useMemo(() => {
if (!isActive || comboCount === 0) return "miss";
return getTimingQuality(timeSinceLastHit, comboWindow);
}, [isActive, comboCount, timeSinceLastHit, comboWindow]);
const timingColor = useMemo(
() => getTimingColor(timingQuality),
[timingQuality]
);
const windowProgress = useMemo(() => {
if (!isActive || comboCount === 0) return 0;
return Math.min((timeSinceLastHit / comboWindow) * 100, 100);
}, [isActive, comboCount, timeSinceLastHit, comboWindow]);
// Animate count on change
useEffect(() => {
if (comboCount > 0) {
setAnimateCount(true);
const timer = setTimeout(() => setAnimateCount(false), 300);
return () => clearTimeout(timer);
}
}, [comboCount]);
const glowColor = useMemo(
() => hexToRgbaString(parseInt(timingColor.slice(1), 16), 0.6),
[timingColor]
);
if (!isActive && comboCount === 0) {
return null; // Hide when not active
}
return (
<div
className={`combo-counter${className ? ` ${className}` : ""}${!showOnMobile ? " hidden-mobile" : ""}`}
style={{
display: "flex",
flexDirection: "column",
gap: "10px",
padding: "14px 18px",
backgroundColor: `#${KOREAN_COLORS.UI_BACKGROUND_MEDIUM.toString(16).padStart(6, "0")}`,
border: `2px solid ${timingColor}`,
borderRadius: "8px",
minWidth: "220px",
boxShadow: `0 0 16px ${glowColor}, inset 0 0 10px rgba(0, 0, 0, 0.5)`,
transition: "border-color 0.2s ease, box-shadow 0.2s ease",
}}
role="status"
aria-live="polite"
aria-label={`Combo: ${comboCount} hits`}
>
{/* Bilingual Label and Count */}
<div
style={{
display: "flex",
justifyContent: "space-between",
alignItems: "center",
}}
>
<span
style={{
fontSize: "14px",
fontWeight: 600,
color: `#${KOREAN_COLORS.TEXT_PRIMARY.toString(16).padStart(6, "0")}`,
fontFamily: "'Noto Sans KR', 'Nanum Gothic', sans-serif",
letterSpacing: "0.5px",
}}
>
연속 공격 | Combo
</span>
<span
style={{
fontSize: animateCount ? "28px" : "24px",
fontWeight: 700,
color: timingColor,
fontFamily: "'Orbitron', 'Noto Sans KR', monospace",
textShadow: `0 0 12px ${glowColor}`,
transition: "font-size 0.15s ease, color 0.2s ease",
}}
>
{comboCount}x
</span>
</div>
{/* Timing Window Indicator */}
<div
style={{
position: "relative",
height: "28px",
backgroundColor: `#${KOREAN_COLORS.UI_BACKGROUND_DARK.toString(16).padStart(6, "0")}`,
borderRadius: "4px",
overflow: "hidden",
border: `1px solid #${KOREAN_COLORS.UI_BORDER.toString(16).padStart(6, "0")}`,
}}
>
{/* Progress Fill */}
<div
style={{
position: "absolute",
left: 0,
top: 0,
height: "100%",
width: `${windowProgress}%`,
backgroundColor: timingColor,
transition: "width 0.05s linear, background-color 0.2s ease",
boxShadow: `inset 0 0 12px ${glowColor}`,
}}
/>
{/* Timing Label */}
<div
style={{
position: "absolute",
left: 0,
top: 0,
width: "100%",
height: "100%",
display: "flex",
alignItems: "center",
justifyContent: "center",
fontSize: "12px",
fontWeight: 600,
color: `#${KOREAN_COLORS.TEXT_PRIMARY.toString(16).padStart(6, "0")}`,
fontFamily: "'Noto Sans KR', sans-serif",
textShadow: "0 0 4px rgba(0, 0, 0, 0.8)",
pointerEvents: "none",
}}
>
{timingQuality === "perfect" && "완벽! | Perfect!"}
{timingQuality === "good" && "좋음 | Good"}
{timingQuality === "miss" && "놓침 | Missed"}
</div>
{/* Window Markers */}
<div
style={{
position: "absolute",
left: "50%",
top: 0,
width: "2px",
height: "100%",
backgroundColor: "rgba(255, 255, 255, 0.3)",
transform: "translateX(-50%)",
}}
/>
</div>
{/* Timing Window Info */}
<div
style={{
fontSize: "11px",
color: `#${KOREAN_COLORS.TEXT_SECONDARY.toString(16).padStart(6, "0")}`,
fontFamily: "'Noto Sans KR', 'Nanum Gothic', sans-serif",
textAlign: "center",
opacity: 0.8,
}}
>
타이밍 창: {comboWindow}ms | Window: {comboWindow}ms
</div>
<style>
{`
@media (max-width: 768px) {
.combo-counter.hidden-mobile {
display: none;
}
.combo-counter {
min-width: 180px;
padding: 12px 14px;
gap: 8px;
}
.combo-counter > div:first-child span:first-child {
font-size: 12px;
}
.combo-counter > div:first-child span:last-child {
font-size: 20px;
}
.combo-counter > div:nth-child(2) {
height: 24px;
}
.combo-counter > div:nth-child(2) > div:nth-child(2) {
font-size: 11px;
}
.combo-counter > div:last-child {
font-size: 10px;
}
}
`}
</style>
</div>
);
};
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