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* GuardIndicator - Visual indicator showing current fighting stance guard position
* Displays Korean traditional stance name, English translation, and guard characteristics
*
* @module components/shared/three/indicators/GuardIndicator
* @category Combat UI
* @korean 방어자세표시기
*/
import React, { useMemo } from "react";
import { STANCE_GUARD_CONFIGS } from "../../../../systems/animation";
import { TRIGRAM_DATA } from "../../../../systems/trigram/types";
import { TrigramStance } from "../../../../types/common";
import { KOREAN_COLORS } from "../../../../types/constants";
import { hexToRgbaString } from "../../../../utils/colorUtils";
/**
* Props for GuardIndicator component
*/
export interface GuardIndicatorProps {
/** Current trigram stance */
readonly currentStance: TrigramStance;
/** Whether player is in guard animation state */
readonly isInGuard: boolean;
/** Player position: 'left' for player 1, 'right' for player 2 */
readonly position: "left" | "right";
/** Whether to use mobile-optimized sizing */
readonly isMobile?: boolean;
}
/**
* Get guard height label based on arm positions
*
* Guard heights based on shoulder.x (vertical angle in radians):
* - High guard (고위): shoulder at chin level (x <= -0.8)
* GEON (-1.0), LI (-1.6), GAN (-1.0)
* - Mid guard (중위): shoulder at chest level (-0.8 < x < -0.4)
* TAE (-0.7), JIN (-0.6), SON (-0.8), GAM (-0.8)
* - Low guard (저위): shoulder low (x >= -0.4)
* GON (-0.4)
*/
function getGuardHeight(stance: TrigramStance): {
korean: string;
english: string;
} {
const config = STANCE_GUARD_CONFIGS[stance];
const shoulderY = config.guardPose.leftArm.shoulder.x; // x is vertical in Euler
if (shoulderY <= -0.8) {
return { korean: "고위", english: "High" };
} else if (shoulderY < -0.4) {
return { korean: "중위", english: "Mid" };
} else {
return { korean: "저위", english: "Low" };
}
}
/**
* Get traditional Korean stance name from guard config
*/
function getTraditionalStanceName(stance: TrigramStance): {
korean: string;
romanized: string;
} {
const stanceNames: Record<
TrigramStance,
{ korean: string; romanized: string }
> = {
[TrigramStance.GEON]: { korean: "앞서기", romanized: "Ap Seogi" },
[TrigramStance.TAE]: { korean: "범서기", romanized: "Beom Seogi" },
[TrigramStance.LI]: { korean: "겨루기 준비", romanized: "Gyeorugi Junbi" },
[TrigramStance.JIN]: { korean: "주춤서기", romanized: "Juchum Seogi" },
[TrigramStance.SON]: { korean: "학다리서기", romanized: "Hakdari Seogi" },
[TrigramStance.GAM]: { korean: "뒷발서기", romanized: "Dwitbal Seogi" },
[TrigramStance.GAN]: { korean: "모아서기", romanized: "Moa Seogi" },
[TrigramStance.GON]: { korean: "중하", romanized: "Joong Ha Seogi" },
};
return stanceNames[stance];
}
/**
* Get weight distribution icon
*/
function getWeightIcon(weight: "forward" | "neutral" | "back"): string {
switch (weight) {
case "forward":
return "▲"; // Forward lean
case "back":
return "▼"; // Back lean
case "neutral":
return "●"; // Centered
}
}
/**
* GuardIndicator Component
*
* Displays current guard position information with Korean martial arts terminology.
* Shows only when player is in a stance guard animation state.
*
* Features:
* - Traditional Korean stance name (앞서기, 앞굽이, etc.)
* - Romanized pronunciation
* - Guard height indicator (High/Mid/Low)
* - Weight distribution visualization
* - Korean cyberpunk styling with glow effects
* - Responsive mobile layout
* - Accessible with proper ARIA labels
*
* @example
* ```tsx
* <GuardIndicator
* currentStance={TrigramStance.GEON}
* isInGuard={true}
* position="left"
* isMobile={false}
* />
* ```
*
* @public
* @korean 방어자세표시기
*/
export const GuardIndicator: React.FC<GuardIndicatorProps> = ({
currentStance,
isInGuard,
position: _position, // Currently unused - indicator always positioned bottom-right
isMobile = false,
}) => {
// Get guard configuration
const config = useMemo(
() => STANCE_GUARD_CONFIGS[currentStance],
[currentStance],
);
const trigramData = useMemo(
() => TRIGRAM_DATA[currentStance],
[currentStance],
);
const stanceName = useMemo(
() => getTraditionalStanceName(currentStance),
[currentStance],
);
const guardHeight = useMemo(
() => getGuardHeight(currentStance),
[currentStance],
);
const weightIcon = useMemo(
() => getWeightIcon(config.guardPose.weight),
[config.guardPose.weight],
);
// Memoize responsive sizing
const layout = useMemo(
() => ({
fontSize: isMobile ? 10 : 12,
titleSize: isMobile ? 13 : 16,
iconSize: isMobile ? 14 : 18,
padding: isMobile ? "6px 10px" : "8px 12px",
gap: isMobile ? "3px" : "4px",
}),
[isMobile],
);
// Container style - uses relative positioning for embedding in container HUDs
const containerStyle = useMemo(
() => ({
position: "relative" as const,
display: "flex",
flexDirection: "column" as const,
gap: layout.gap,
backgroundColor: hexToRgbaString(KOREAN_COLORS.UI_BACKGROUND_DARK, 0.85),
border: `1px solid ${hexToRgbaString(KOREAN_COLORS.PRIMARY_CYAN, 0.6)}`,
borderRadius: "6px",
padding: layout.padding,
pointerEvents: "none" as const,
width: "100%",
boxSizing: "border-box" as const,
boxShadow: `0 0 15px ${hexToRgbaString(KOREAN_COLORS.PRIMARY_CYAN, 0.3)}`,
}),
[layout],
);
// Don't render if not in guard state
if (!isInGuard) return null;
return (
<div
data-testid="guard-indicator"
role="status"
aria-live="polite"
aria-label={`Guard position: ${stanceName.romanized}, ${guardHeight.english} guard, ${config.guardPose.weight} weight`}
style={containerStyle}
>
{/* Title: GUARD with trigram symbol */}
<div
style={{
fontSize: layout.titleSize,
color: hexToRgbaString(KOREAN_COLORS.ACCENT_GOLD, 1),
fontWeight: "bold",
textAlign: "center",
textShadow: `0 0 10px ${hexToRgbaString(
KOREAN_COLORS.ACCENT_GOLD,
0.6,
)}`,
borderBottom: `1px solid ${hexToRgbaString(
KOREAN_COLORS.PRIMARY_CYAN,
0.4,
)}`,
paddingBottom: layout.gap,
}}
>
{trigramData.symbol} GUARD
</div>
{/* Traditional stance name (Korean) */}
<div
style={{
fontSize: layout.fontSize,
color: hexToRgbaString(KOREAN_COLORS.PRIMARY_CYAN, 1),
textAlign: "center",
fontWeight: "600",
}}
>
{stanceName.korean}
</div>
{/* Romanized name */}
<div
style={{
fontSize: layout.fontSize,
color: hexToRgbaString(KOREAN_COLORS.ACCENT_GOLD, 0.8),
textAlign: "center",
fontStyle: "italic",
}}
>
{stanceName.romanized}
</div>
{/* Guard characteristics row */}
<div
style={{
display: "flex",
justifyContent: "space-around",
marginTop: layout.gap,
paddingTop: layout.gap,
borderTop: `1px solid ${hexToRgbaString(
KOREAN_COLORS.PRIMARY_CYAN,
0.3,
)}`,
}}
>
{/* Guard height */}
<div style={{ textAlign: "center" }}>
<div
style={{
fontSize: layout.iconSize,
color: hexToRgbaString(KOREAN_COLORS.PRIMARY_CYAN, 1),
}}
>
⚔️
</div>
<div
style={{
fontSize: layout.fontSize - 1,
color: hexToRgbaString(KOREAN_COLORS.ACCENT_GOLD, 0.9),
}}
>
{guardHeight.korean}
</div>
<div
style={{
fontSize: layout.fontSize - 2,
color: hexToRgbaString(KOREAN_COLORS.ACCENT_GOLD, 0.6),
}}
>
{guardHeight.english}
</div>
</div>
{/* Weight distribution */}
<div style={{ textAlign: "center" }}>
<div
style={{
fontSize: layout.iconSize,
color: hexToRgbaString(KOREAN_COLORS.PRIMARY_CYAN, 1),
}}
>
{weightIcon}
</div>
<div
style={{
fontSize: layout.fontSize - 1,
color: hexToRgbaString(KOREAN_COLORS.ACCENT_GOLD, 0.9),
}}
>
{config.guardPose.weight === "forward" && "전방"}
{config.guardPose.weight === "neutral" && "중립"}
{config.guardPose.weight === "back" && "후방"}
</div>
<div
style={{
fontSize: layout.fontSize - 2,
color: hexToRgbaString(KOREAN_COLORS.ACCENT_GOLD, 0.6),
textTransform: "capitalize" as const,
}}
>
{config.guardPose.weight}
</div>
</div>
</div>
</div>
);
};
/**
* Memoized GuardIndicator to prevent unnecessary re-renders
*/
export default React.memo(GuardIndicator);
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