Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 | 5x 459x 459x 342x 342x 342x 342x 342x 342x 36x 36x 36x 36x 36x 36x 36x 48x 48x 48x 48x 48x 48x 48x 48x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 27x 27x 27x 27x 27x 27x 27x 27x 27x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 459x 169x 169x 169x 169x 169x 3380x 444x 444x 444x 8880x 8880x 8880x 8880x 8880x 8880x 8880x 8880x 8880x 141x 2820x 2820x 2820x 2820x 2820x 17x 4x 3x 9x 9x 180x 9x 74x 1480x 1480x 1480x 74x | /**
* Muscle activation system for realistic combat physiology
*
* Maps Korean martial arts techniques to anatomically accurate muscle activation patterns.
* Manages dynamic muscle tension, stamina effects, and smooth relaxation transitions.
*
* @module systems/animation/MuscleActivation
* @category Combat Animation
* @korean 근육활성화시스템
*/
import type {
MuscleGroupName,
MuscleActivationMap,
MuscleActivationState,
MuscleSystemConfig,
} from "../../types/muscle";
/**
* Get muscle activation mapping for a specific Korean martial arts technique
*
* Maps technique names to muscle groups with tension levels (0-1 scale).
* Based on authentic Korean martial arts (Taekwondo, Hapkido, Taekyon).
*
* @param technique - Technique name (e.g., "jab", "cross", "front_kick", "block")
* @returns Map of muscle groups to target tension levels
*
* @example
* ```typescript
* const jabMuscles = getMuscleActivationForTechnique("jab");
* // Returns: Map {
* // "SHOULDER_R" => 0.7,
* // "BICEP_R" => 1.0,
* // "TRICEP_R" => 0.8,
* // "CORE" => 0.5
* // }
* ```
*
* @korean 기법근육활성화가져오기
*/
export const getMuscleActivationForTechnique = (
technique: string
): MuscleActivationMap => {
const activations = new Map<MuscleGroupName, number>();
switch (technique.toLowerCase()) {
// Punching techniques - 주먹 기술
case "jab":
case "정권": // Front jab
activations.set("SHOULDER_R", 0.7);
activations.set("BICEP_R", 1.0); // Maximum flex
activations.set("TRICEP_R", 0.8);
activations.set("CORE", 0.5);
activations.set("PECTORALS", 0.4);
break;
case "cross":
case "역권": // Reverse punch
activations.set("SHOULDER_L", 0.8);
activations.set("BICEP_L", 1.0);
activations.set("TRICEP_L", 0.9);
activations.set("CORE", 0.8); // More core rotation
activations.set("PECTORALS", 0.6);
activations.set("OBLIQUES", 0.7); // Torso rotation
break;
case "hook":
case "갈고리주먹": // Hook punch
activations.set("SHOULDER_R", 0.9);
activations.set("BICEP_R", 1.0);
activations.set("FOREARM_R", 0.8);
activations.set("CORE", 0.7);
activations.set("OBLIQUES", 0.8);
break;
case "uppercut":
case "올려치기": // Uppercut
activations.set("SHOULDER_R", 0.85);
activations.set("BICEP_R", 1.0);
activations.set("TRICEP_R", 0.7);
activations.set("CORE", 0.9);
activations.set("ABS", 0.8);
activations.set("QUAD_R", 0.6); // Lower body drive
break;
// Kicking techniques - 발차기 기술
case "front_kick":
case "앞차기": // Mae Chagi
activations.set("QUAD_R", 1.0); // Kicking leg fully flexed
activations.set("GLUTE_R", 0.9);
activations.set("CALF_R", 0.7);
activations.set("CORE", 0.6); // Balance
activations.set("ABS", 0.7);
activations.set("QUAD_L", 0.4); // Support leg tensed
activations.set("CALF_L", 0.5);
break;
case "roundhouse_kick":
case "dollyeochagi":
case "돌려차기": // Dollyeo Chagi
activations.set("QUAD_R", 1.0);
activations.set("HAMSTRING_R", 0.8);
activations.set("GLUTE_R", 0.95);
activations.set("CORE", 0.8);
activations.set("OBLIQUES", 0.9); // Hip rotation
activations.set("QUAD_L", 0.5);
break;
case "side_kick":
case "옆차기": // Yeop Chagi
activations.set("QUAD_R", 1.0);
activations.set("GLUTE_R", 1.0);
activations.set("HAMSTRING_R", 0.85);
activations.set("CALF_R", 0.8);
activations.set("CORE", 0.7);
activations.set("OBLIQUES", 0.8);
break;
case "back_kick":
case "뒤차기": // Dwi Chagi
activations.set("GLUTE_R", 1.0);
activations.set("HAMSTRING_R", 0.95);
activations.set("QUAD_R", 0.8);
activations.set("CORE", 0.9);
activations.set("ABS", 0.8);
break;
case "axe_kick":
case "내려차기": // Naeryeo Chagi
activations.set("QUAD_R", 0.9);
activations.set("HAMSTRING_R", 1.0); // Maximum hamstring flex
activations.set("GLUTE_R", 0.85);
activations.set("CORE", 0.8);
activations.set("ABS", 0.9);
break;
// Defensive techniques - 방어 기술
case "block":
case "makgi":
case "막기": // Block
activations.set("SHOULDER_L", 0.9);
activations.set("SHOULDER_R", 0.9);
activations.set("BICEP_L", 0.7);
activations.set("BICEP_R", 0.7);
activations.set("FOREARM_L", 0.8);
activations.set("FOREARM_R", 0.8);
activations.set("CORE", 0.8); // Brace for impact
activations.set("ABS", 0.7);
break;
case "parry":
case "흘려막기": // Deflecting block
activations.set("SHOULDER_R", 0.6);
activations.set("FOREARM_R", 0.7);
activations.set("CORE", 0.5);
break;
// Elbow techniques - 팔꿈치 기술
case "elbow_strike":
case "팔꿈치치기": // Palkumchi Chigi
activations.set("SHOULDER_R", 1.0);
activations.set("TRICEP_R", 0.95);
activations.set("FOREARM_R", 0.9);
activations.set("CORE", 0.85);
activations.set("OBLIQUES", 0.8);
break;
// Knee techniques - 무릎 기술
case "knee_strike":
case "무릎치기": // Mureup Chigi
activations.set("QUAD_R", 1.0);
activations.set("HAMSTRING_R", 0.9);
activations.set("GLUTE_R", 0.85);
activations.set("CORE", 0.9);
activations.set("ABS", 0.85);
break;
// Grappling techniques - 잡기 기술 (Hapkido)
case "grab":
case "잡기":
activations.set("FOREARM_L", 0.9);
activations.set("FOREARM_R", 0.9);
activations.set("BICEP_L", 0.7);
activations.set("BICEP_R", 0.7);
activations.set("CORE", 0.6);
break;
// Stance changes - 자세 전환
case "stance_change":
case "자세전환":
activations.set("CORE", 0.7);
activations.set("ABS", 0.6);
activations.set("QUAD_L", 0.5);
activations.set("QUAD_R", 0.5);
activations.set("CALF_L", 0.5);
activations.set("CALF_R", 0.5);
break;
// Default - minimal activation
default:
activations.set("CORE", 0.3);
break;
}
return activations;
};
/**
* Muscle activation manager for real-time combat physiology
*
* Manages 60fps muscle tension updates, stamina effects, and smooth transitions.
* Optimized for performance with ref-based updates to avoid React re-renders.
*
* @korean 근육활성화관리자
*/
export class MuscleActivationManager {
private activations: Map<MuscleGroupName, MuscleActivationState>;
private config: MuscleSystemConfig;
private scratchMap: Map<string, number>; // Reusable map for state sync to avoid allocations
/**
* Create a new muscle activation manager
*
* @param config - Optional configuration (uses defaults if not provided)
* @korean 생성자
*/
constructor(config: Partial<MuscleSystemConfig> = {}) {
this.config = {
maxFrameTime: 3,
muscleCount: 20,
useInstancing: false,
relaxationDelay: 0.3,
exhaustionThreshold: 20,
shakeFrequency: 20,
shakeAmplitude: 0.02,
activationSpeed: 5.0,
relaxationSpeed: 3.0,
shakingTensionThreshold: 0.3,
...config,
};
// Initialize all muscle groups to relaxed state
this.activations = new Map();
// Initialize reusable scratch map for state sync
this.scratchMap = new Map();
const allMuscles: MuscleGroupName[] = [
"SHOULDER_L",
"SHOULDER_R",
"BICEP_L",
"BICEP_R",
"TRICEP_L",
"TRICEP_R",
"FOREARM_L",
"FOREARM_R",
"PECTORALS",
"CORE",
"ABS",
"OBLIQUES",
"QUAD_L",
"QUAD_R",
"HAMSTRING_L",
"HAMSTRING_R",
"CALF_L",
"CALF_R",
"GLUTE_L",
"GLUTE_R",
];
allMuscles.forEach((muscle) => {
this.activations.set(muscle, {
muscleGroup: muscle,
tension: 0,
targetTension: 0,
isShaking: false,
});
});
}
/**
* Update muscle activations for a technique at 60fps
*
* @param technique - Technique name
* @param stamina - Current stamina (0-100)
* @param delta - Time since last frame in seconds
*
* @korean 업데이트
*/
update(technique: string, stamina: number, delta: number): void {
const targetActivations = getMuscleActivationForTechnique(technique);
const isExhausted = stamina < this.config.exhaustionThreshold;
// Update each muscle group
this.activations.forEach((state, muscleGroup) => {
const targetTension = targetActivations.get(muscleGroup) ?? 0;
// Adjust tension based on stamina (exhaustion reduces muscle effectiveness)
const staminaFactor = Math.max(0.3, stamina / 100); // Minimum 30% even when exhausted
const adjustedTarget = targetTension * staminaFactor;
// Smooth transition to target tension using lerp
const lerp = (start: number, end: number, t: number) => start + (end - start) * t;
const newTension = lerp(
state.tension,
adjustedTarget,
this.config.activationSpeed * delta
);
// Update shaking state for exhaustion
const isShaking = isExhausted && state.tension > this.config.shakingTensionThreshold;
// Update state directly for performance
state.tension = newTension;
state.targetTension = adjustedTarget;
state.isShaking = isShaking;
});
}
/**
* Gradually relax all muscles to idle state
*
* Used after technique completion with configurable delay.
*
* @param delta - Time since last frame in seconds
*
* @korean 근육이완
*/
relaxAllMuscles(delta: number): void {
this.activations.forEach((state) => {
// Use configured relaxation speed (slower than activation for realism)
const lerp = (start: number, end: number, t: number) => start + (end - start) * t;
const newTension = lerp(
state.tension,
0,
this.config.relaxationSpeed * delta
);
state.tension = newTension;
state.targetTension = 0;
state.isShaking = false;
});
}
/**
* Get current tension for a specific muscle group
*
* @param muscleGroup - Muscle group name
* @returns Current tension (0-1) or 0 if not found
*
* @korean 긴장도가져오기
*/
getTension(muscleGroup: MuscleGroupName): number {
return this.activations.get(muscleGroup)?.tension ?? 0;
}
/**
* Get shaking state for a specific muscle group
*
* @param muscleGroup - Muscle group name
* @returns Whether muscle is shaking
*
* @korean 흔들림상태가져오기
*/
isShaking(muscleGroup: MuscleGroupName): boolean {
return this.activations.get(muscleGroup)?.isShaking ?? false;
}
/**
* Get all current muscle activations
*
* @returns Map of muscle groups to current states
*
* @korean 모든활성화가져오기
*/
getAllActivations(): ReadonlyMap<MuscleGroupName, MuscleActivationState> {
return this.activations;
}
/**
* Get reusable scratch map with current tension values for state sync
*
* Populates and returns a reusable Map to avoid allocations during state sync.
* This map is cleared and repopulated on each call.
*
* @returns Reusable Map with current tension values
*
* @korean 상태동기화맵가져오기
*/
getScratchMapForSync(): Map<string, number> {
this.scratchMap.clear();
this.activations.forEach((state, name) => {
this.scratchMap.set(name, state.tension);
});
return this.scratchMap;
}
/**
* Reset all muscles to relaxed state immediately
*
* @korean 즉시이완
*/
reset(): void {
this.activations.forEach((state) => {
state.tension = 0;
state.targetTension = 0;
state.isShaking = false;
});
this.scratchMap.clear();
}
}
|