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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 | 1x 1x 1x | /**
* DustClouds3D - Environmental dust particle effects for movement and impacts
*
* Creates realistic dust clouds that billow from footfalls, strikes, and ground impacts.
* Uses physics-based particle simulation with air resistance and settling behavior.
*
* Features:
* - Billowing dust cloud simulation
* - Air resistance and gravity physics
* - Settles to floor over time
* - Radial expansion pattern
* - Korean gray/brown earth tones
* - Mobile performance optimization
*
* @module components/combat/DustClouds3D
* @category Combat Effects
* @korean 먼지구름3D
*/
import { Points, PointMaterial } from "@react-three/drei";
import { useFrame } from "@react-three/fiber";
import React, { useRef, useMemo, useEffect } from "react";
import * as THREE from "three";
import { KOREAN_COLORS } from "../../../../../types/constants";
/**
* Dust cloud effect data
*/
export interface DustCloudEffect {
/** Unique identifier */
readonly id: string;
/** Origin position in 3D world space */
readonly position: [number, number, number];
/** Intensity of dust (0.0 to 1.0) - affects particle count and spread */
readonly intensity: number;
/** Timestamp when effect was created */
readonly startTime: number;
/** Type of dust event */
readonly type: "footfall" | "impact" | "block" | "slide";
}
/**
* Props for DustClouds3D component
*/
export interface DustClouds3DProps {
/** Active dust cloud effects to render */
readonly effects: readonly DustCloudEffect[];
/** Whether to enable dust effects */
readonly enabled?: boolean;
/** Mobile device mode (reduced particle count) */
readonly isMobile?: boolean;
/** Callback when effect completes */
readonly onEffectComplete?: (effectId: string) => void;
}
/**
* Individual dust particle
*/
interface DustParticle {
position: THREE.Vector3;
velocity: THREE.Vector3;
age: number;
lifetime: number;
size: number;
}
/**
* Performance and physics constants
*/
const DUST_CONSTANTS = {
/** Gravity acceleration for dust (m/s²) - lighter than blood */
GRAVITY: -3.0,
/** Air resistance coefficient */
AIR_RESISTANCE: 0.95,
/** Base particle count */
PARTICLES_DESKTOP: {
footfall: 30,
impact: 60,
block: 40,
slide: 50,
},
PARTICLES_MOBILE: {
footfall: 15,
impact: 30,
block: 20,
slide: 25,
},
/** Particle lifetime in seconds */
LIFETIME: 3.0,
/** Initial velocity range (m/s) */
VELOCITY_MIN: 0.5,
VELOCITY_MAX: 2.0,
/** Particle size range */
SIZE_MIN: 0.05,
SIZE_MAX: 0.15,
/** Spread radius */
SPREAD_RADIUS: 1.5,
/** Floor Y position */
FLOOR_Y: 0.0,
/** Maximum delta time for physics stability */
MAX_DELTA: 1 / 30,
} as const;
/**
* Generate dust particles in billowing cloud pattern
*/
const generateDustParticles = (
effect: DustCloudEffect,
particleCount: number
): DustParticle[] => {
const particles: DustParticle[] = [];
const origin = new THREE.Vector3(...effect.position);
// Ensure origin is at or near floor level for dust
origin.y = Math.max(origin.y, DUST_CONSTANTS.FLOOR_Y + 0.1);
for (let i = 0; i < particleCount; i++) {
// Random position in horizontal circle near origin
const angle = Math.random() * Math.PI * 2;
const radius = Math.random() * DUST_CONSTANTS.SPREAD_RADIUS * effect.intensity;
const offset = new THREE.Vector3(
Math.cos(angle) * radius,
Math.random() * 0.3, // Slight vertical variation
Math.sin(angle) * radius
);
// Mostly horizontal velocity with slight upward component
const velocityAngle = angle + (Math.random() - 0.5) * 0.3;
const horizontalSpeed =
DUST_CONSTANTS.VELOCITY_MIN +
Math.random() * (DUST_CONSTANTS.VELOCITY_MAX - DUST_CONSTANTS.VELOCITY_MIN);
const upwardSpeed = Math.random() * 0.5 * effect.intensity;
const velocity = new THREE.Vector3(
Math.cos(velocityAngle) * horizontalSpeed,
upwardSpeed,
Math.sin(velocityAngle) * horizontalSpeed
);
particles.push({
position: origin.clone().add(offset),
velocity,
age: 0,
lifetime: DUST_CONSTANTS.LIFETIME * (0.8 + Math.random() * 0.4),
size:
DUST_CONSTANTS.SIZE_MIN +
Math.random() * (DUST_CONSTANTS.SIZE_MAX - DUST_CONSTANTS.SIZE_MIN),
});
}
return particles;
};
/**
* DustClouds3D Component
*
* Renders billowing dust cloud effects for movement and combat impacts.
* Particles expand radially, rise slightly, then settle to the floor.
*
* @example
* ```tsx
* const [dustEffects, setDustEffects] = useState<DustCloudEffect[]>([]);
*
* // On footfall
* const handleFootfall = (position: [number, number, number]) => {
* setDustEffects([...dustEffects, {
* id: generateId(),
* position,
* intensity: 0.5,
* type: 'footfall',
* startTime: Date.now(),
* }]);
* };
*
* <DustClouds3D
* effects={dustEffects}
* enabled={visualEffects.dust}
* isMobile={isMobile}
* onEffectComplete={(id) => {
* setDustEffects(prev => prev.filter(e => e.id !== id));
* }}
* />
* ```
*/
export const DustClouds3D: React.FC<DustClouds3DProps> = ({
effects,
enabled = true,
isMobile = false,
onEffectComplete,
}) => {
// Particle system state
const particlesRef = useRef<Map<string, DustParticle[]>>(new Map());
const pointsRef = useRef<THREE.Points>(null);
const completedEffectsRef = useRef<Set<string>>(new Set());
// Calculate max particles needed
const maxParticles = useMemo(() => {
const maxCounts = isMobile
? DUST_CONSTANTS.PARTICLES_MOBILE
: DUST_CONSTANTS.PARTICLES_DESKTOP;
return Math.max(...Object.values(maxCounts));
}, [isMobile]);
// Dust color - Korean earth tones
const dustColor = useMemo(() => KOREAN_COLORS.UI_STEEL_GRAY, []);
// Initialize particles for new effects
useEffect(() => {
if (!enabled) return;
// Performance configuration - moved inside useEffect to avoid dependency issues
const getParticleCount = (effect: DustCloudEffect): number => {
const counts = isMobile
? DUST_CONSTANTS.PARTICLES_MOBILE
: DUST_CONSTANTS.PARTICLES_DESKTOP;
return Math.floor(counts[effect.type] * effect.intensity);
};
effects.forEach((effect) => {
if (!particlesRef.current.has(effect.id)) {
const particleCount = getParticleCount(effect);
const particles = generateDustParticles(effect, particleCount);
particlesRef.current.set(effect.id, particles);
}
});
// Clean up removed effects
const effectIds = new Set(effects.map((e) => e.id));
particlesRef.current.forEach((_, id) => {
if (!effectIds.has(id)) {
particlesRef.current.delete(id);
completedEffectsRef.current.delete(id);
}
});
}, [effects, enabled, isMobile]);
// Initial positions for buffer (updated in useFrame)
const initialPositions = useMemo(() => {
const positions = new Float32Array(maxParticles * 3);
return positions;
}, [maxParticles]);
// Physics update loop
useFrame((_, delta) => {
if (!enabled || !pointsRef.current) return;
const safeDelta = Math.min(delta, DUST_CONSTANTS.MAX_DELTA);
let totalParticleIndex = 0;
const attr = pointsRef.current.geometry.attributes.position;
const posArray = attr.array as Float32Array;
// Update all active dust particles
particlesRef.current.forEach((particles, effectId) => {
let hasActiveParticles = false;
for (let i = 0; i < particles.length; i++) {
const p = particles[i];
p.age += safeDelta;
if (p.age < p.lifetime) {
hasActiveParticles = true;
// Apply gravity (lighter than other particles)
p.velocity.y += DUST_CONSTANTS.GRAVITY * safeDelta;
// Apply air resistance
p.velocity.multiplyScalar(DUST_CONSTANTS.AIR_RESISTANCE);
// Update position
p.position.addScaledVector(p.velocity, safeDelta);
// Floor collision - settle on floor
if (p.position.y <= DUST_CONSTANTS.FLOOR_Y) {
p.position.y = DUST_CONSTANTS.FLOOR_Y;
p.velocity.y = 0;
p.velocity.x *= 0.9; // Sliding friction
p.velocity.z *= 0.9;
}
// Update render position
if (totalParticleIndex < posArray.length / 3) {
posArray[totalParticleIndex * 3] = p.position.x;
posArray[totalParticleIndex * 3 + 1] = p.position.y;
posArray[totalParticleIndex * 3 + 2] = p.position.z;
totalParticleIndex++;
}
}
}
// Check if effect is complete
if (!hasActiveParticles && !completedEffectsRef.current.has(effectId)) {
completedEffectsRef.current.add(effectId);
onEffectComplete?.(effectId);
}
});
attr.needsUpdate = true;
});
// Don't render if disabled or no effects
if (!enabled || effects.length === 0) {
return null;
}
return (
<Points
ref={pointsRef}
positions={initialPositions}
data-testid="dust-clouds-3d"
>
<PointMaterial
color={dustColor}
size={DUST_CONSTANTS.SIZE_MIN * 1.5}
sizeAttenuation
transparent
opacity={0.4} // Semi-transparent for dust effect
depthWrite={false}
blending={THREE.NormalBlending}
/>
</Points>
);
};
export default DustClouds3D;
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