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* VitalPointMarkers3D - 3D vital point visualization
*
* Renders anatomical vital points (급소) in 3D space around character models
* Provides Korean martial arts targeting system visualization
* Note: Currently displays points from KOREAN_VITAL_POINTS data (expandable to 70 points)
*/
import { Html } from "@react-three/drei";
import { useFrame } from "@react-three/fiber";
import React, { useMemo, useRef, useState } from "react";
import * as THREE from "three";
import { KOREAN_VITAL_POINTS } from "../../../systems/vitalpoint/KoreanVitalPoints";
import { VitalPoint } from "../../../systems/vitalpoint/types";
import {
Position,
VitalPointSeverity,
} from "../../../types/common";
import { KOREAN_COLORS, FONT_FAMILY } from "../../../types/constants";
/**
* Props for the VitalPointMarkers3D component.
* Controls visibility and interaction with anatomical targeting points.
*/
export interface VitalPointMarkers3DProps {
/** 3D world position of the character [x, y, z]. Defaults to [0, 0, 0] */
readonly position?: [number, number, number];
/** Whether markers are visible. Defaults to true */
readonly visible?: boolean;
/** Selected vital point ID for highlighting */
readonly selectedPoint?: string | null;
/** Callback when a vital point is clicked */
readonly onPointClick?: (vitalPointId: string) => void;
/** Callback when a vital point is hovered */
readonly onPointHover?: (vitalPointId: string | null) => void;
/** Filter points by severity level */
readonly severityFilter?: VitalPointSeverity[];
/** Whether to show point labels with Korean names */
readonly showLabels?: boolean;
/** Scale multiplier for marker size. Defaults to 1.0 */
readonly scale?: number;
/** Whether to enable pulsing animation. Defaults to true */
readonly animated?: boolean;
}
/**
* Get color based on vital point severity
*/
const getSeverityColor = (severity: VitalPointSeverity): number => {
switch (severity) {
case VitalPointSeverity.LETHAL:
return KOREAN_COLORS.ACCENT_RED;
case VitalPointSeverity.CRITICAL:
return KOREAN_COLORS.SECONDARY_MAGENTA;
case VitalPointSeverity.MAJOR:
return KOREAN_COLORS.ACCENT_GOLD;
case VitalPointSeverity.MODERATE:
return KOREAN_COLORS.SECONDARY_YELLOW;
case VitalPointSeverity.MINOR:
return KOREAN_COLORS.ACCENT_CYAN;
default:
return KOREAN_COLORS.PRIMARY_CYAN;
}
};
// Coordinate conversion constants
const PIXEL_TO_WORLD_SCALE = 100;
const CHARACTER_HEIGHT = 2;
const X_SCALE_FACTOR = 0.5;
// Label styling constants
const LABEL_STYLES = {
padding: "4px 8px",
borderRadius: "4px",
fontSize: "10px",
subtextSize: "8px",
subtextOpacity: 0.8,
borderWidth: "1px",
} as const;
/**
* Convert color number to RGBA hex string
* @param color - Color as number (e.g., 0xFF0000)
* @param alpha - Alpha channel as hex string (e.g., "dd" for semi-transparent)
* @returns RGBA hex string (e.g., "#ff0000dd")
*/
const colorToRgbaHex = (color: number, alpha: string = "ff"): string => {
return `#${color.toString(16).padStart(6, "0")}${alpha}`;
};
/**
* Convert 2D screen position to 3D body position
* Maps training dummy 2D coordinates to 3D character model space
*/
const convert2DTo3D = (
pos2D: Position,
basePosition: [number, number, number]
): [number, number, number] => {
// Normalize from pixel coordinates to character-relative coordinates
const normalizedX = pos2D.x / PIXEL_TO_WORLD_SCALE;
// Add PIXEL_TO_WORLD_SCALE to y to offset the origin from top-left to model base (centered at character feet)
const offsetY = pos2D.y + PIXEL_TO_WORLD_SCALE;
const normalizedY = CHARACTER_HEIGHT - offsetY / PIXEL_TO_WORLD_SCALE;
const normalizedZ = 0; // Keep depth neutral for now
return [
basePosition[0] + normalizedX * X_SCALE_FACTOR,
basePosition[1] + normalizedY,
basePosition[2] + normalizedZ,
];
};
/**
* Individual Vital Point Marker Component
*/
interface VitalPointMarkerProps {
readonly vitalPoint: VitalPoint;
readonly position3D: [number, number, number];
readonly selected: boolean;
readonly hovered: boolean;
readonly showLabel: boolean;
readonly scale: number;
readonly animated: boolean;
readonly onHover: (hovered: boolean) => void;
readonly onClick: () => void;
}
const VitalPointMarker: React.FC<VitalPointMarkerProps> = ({
vitalPoint,
position3D,
selected,
hovered,
showLabel,
scale,
animated,
onHover,
onClick,
}) => {
const sphereRef = useRef<THREE.Mesh>(null);
const ringRef = useRef<THREE.Mesh>(null);
// Animate marker
useFrame((state) => {
if (!sphereRef.current || !animated) return;
// Pulsing animation
const pulse = Math.sin(state.clock.elapsedTime * 2) * 0.1 + 1;
sphereRef.current.scale.setScalar(pulse * scale);
// Rotate ring for selected/hovered
if (ringRef.current && (selected || hovered)) {
ringRef.current.rotation.z += 0.05;
}
});
const color = useMemo(() => {
Iif (selected) return KOREAN_COLORS.ACCENT_GOLD;
Iif (hovered) return KOREAN_COLORS.PRIMARY_CYAN;
return getSeverityColor(vitalPoint.severity);
}, [selected, hovered, vitalPoint.severity]);
const markerSize = useMemo(() => {
// Base marker size and severity multipliers
const DEFAULT_MARKER_SIZE = 0.05;
switch (vitalPoint.severity) {
case VitalPointSeverity.LETHAL:
case VitalPointSeverity.CRITICAL:
return DEFAULT_MARKER_SIZE * 1.6 * scale; // 0.08
case VitalPointSeverity.MAJOR:
return DEFAULT_MARKER_SIZE * 1.2 * scale; // 0.06
case VitalPointSeverity.MODERATE:
return DEFAULT_MARKER_SIZE * 1.0 * scale; // 0.05
case VitalPointSeverity.MINOR:
return DEFAULT_MARKER_SIZE * 0.8 * scale; // 0.04
default:
return DEFAULT_MARKER_SIZE * scale;
}
}, [vitalPoint.severity, scale]);
return (
<group position={position3D}>
{/* Main sphere marker */}
<mesh
ref={sphereRef}
onPointerOver={() => onHover(true)}
onPointerOut={() => onHover(false)}
onClick={(e) => {
e.stopPropagation();
onClick();
}}
>
<sphereGeometry args={[markerSize, 16, 16]} />
<meshBasicMaterial
color={color}
transparent
opacity={hovered || selected ? 0.9 : 0.6}
/>
</mesh>
{/* Outer ring for selected/hovered */}
{(selected || hovered) && (
<mesh
ref={ringRef}
rotation={[Math.PI / 2, 0, 0]}
position={[0, 0, 0]}
>
<ringGeometry args={[markerSize * 1.5, markerSize * 1.8, 32]} />
<meshBasicMaterial
color={color}
transparent
opacity={0.5}
side={THREE.DoubleSide}
/>
</mesh>
)}
{/* Label overlay */}
{showLabel && (hovered || selected) && (
<Html
position={[0, markerSize * 2, 0]}
center
distanceFactor={5}
style={{
pointerEvents: "none",
userSelect: "none",
}}
>
<div
style={{
background: colorToRgbaHex(color, "dd"),
color: "#ffffff",
padding: LABEL_STYLES.padding,
borderRadius: LABEL_STYLES.borderRadius,
fontSize: LABEL_STYLES.fontSize,
fontFamily: FONT_FAMILY.KOREAN,
whiteSpace: "nowrap",
textAlign: "center",
border: `${LABEL_STYLES.borderWidth} solid ${colorToRgbaHex(color)}`,
}}
>
<div>{vitalPoint.names.korean}</div>
<div style={{ fontSize: LABEL_STYLES.subtextSize, opacity: LABEL_STYLES.subtextOpacity }}>
{vitalPoint.names.english}
</div>
</div>
</Html>
)}
</group>
);
};
/**
* VitalPointMarkers3D Component
* Renders all vital points as 3D markers around a character
*/
export const VitalPointMarkers3D: React.FC<VitalPointMarkers3DProps> = ({
position = [0, 0, 0],
visible = true,
selectedPoint = null,
onPointClick,
onPointHover,
severityFilter,
showLabels = true,
scale = 1.0,
animated = true,
}) => {
const [hoveredPoint, setHoveredPoint] = useState<string | null>(null);
// Filter vital points based on severity
const visiblePoints = useMemo(() => {
let points = [...KOREAN_VITAL_POINTS];
Eif (severityFilter && severityFilter.length > 0) {
points = points.filter((vp) => severityFilter.includes(vp.severity));
}
return points;
}, [severityFilter]);
// Handle point hover
const handlePointHover = (vitalPointId: string, hovered: boolean) => {
const newHovered = hovered ? vitalPointId : null;
setHoveredPoint(newHovered);
onPointHover?.(newHovered);
};
// Handle point click
const handlePointClick = (vitalPointId: string) => {
onPointClick?.(vitalPointId);
};
Iif (!visible) return null;
return (
<group position={position}>
{visiblePoints.map((vitalPoint) => {
const position3D = convert2DTo3D(vitalPoint.position, [0, 0, 0]);
return (
<VitalPointMarker
key={vitalPoint.id}
vitalPoint={vitalPoint}
position3D={position3D}
selected={selectedPoint === vitalPoint.id}
hovered={hoveredPoint === vitalPoint.id}
showLabel={showLabels}
scale={scale}
animated={animated}
onHover={(hovered) => handlePointHover(vitalPoint.id, hovered)}
onClick={() => handlePointClick(vitalPoint.id)}
/>
);
})}
</group>
);
};
export default VitalPointMarkers3D;
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