Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* ☷ Gon (Earth) Guard Positions
*
* Low grappling guard positions for the Gon (곤/Earth) trigram.
* Embodies grounding and wrestling readiness from Ssireum techniques.
*
* **Korean Martial Arts Context:**
* - **무술**: 씨름 자세 (Ssireum Stance)
* - **특성**: 낮은 잡기 방어 (Low Grappling Guard)
* - **철학**: 땅의 안정 (Earth's Stability)
*
* @module systems/animation/catalogs/GonGuardPoses
* @category Animation
* @korean 곤괘방어자세
*/
import * as THREE from "three";
import type { StanceGuardPose } from "@/types/skeletal";
/**
* Gon Low Grappling Guard Pose
*
* **Korean**: 땅 방어 (Ttang Bangeo)
* **Philosophy**: Low guard position for wrestling engagement
*
* Characteristics:
* - Hands low and forward for grappling grabs
* - Knees deeply bent for lower center of gravity
* - Hips back ready to sprawl or shoot
* - Head up maintaining posture and awareness
* - Weight neutral for quick directional changes
*
* Biomechanics:
* - Stance width: 1.2x shoulder width (wide stable base)
* - Pelvis height: -15cm (lowered center of gravity)
* - Knee bend: -50° (deep athletic position)
* - Hip position: -20° (hips back for stability)
*
* @korean 땅방어
* @category Guard Pose
*/
export const GON_LOW_GRAPPLING_GUARD: StanceGuardPose = {
// Left arm - Low forward position for grabbing
leftArm: {
shoulder: new THREE.Euler(
0.52, // 30° (forward reach)
0.26, // 15° (slight abduction)
-0.35 // -20° (internal rotation for grab)
),
elbow: new THREE.Euler(
0, // 0° (neutral)
0, // 0°
-1.4 // -80° (bent ready position)
),
wrist: new THREE.Euler(
0, // 0° (neutral wrist)
0, // 0°
0 // 0°
),
},
// Right arm - Mirror of left for symmetrical guard
rightArm: {
shoulder: new THREE.Euler(
0.52, // 30° (forward reach)
-0.26, // -15° (slight abduction)
0.35 // 20° (internal rotation for grab)
),
elbow: new THREE.Euler(
0, // 0° (neutral)
0, // 0°
1.4 // 80° (bent ready position)
),
wrist: new THREE.Euler(
0, // 0° (neutral wrist)
0, // 0°
0 // 0°
),
},
// Torso - Forward lean for grappling engagement
torso: new THREE.Euler(
0.26, // 15° (forward lean)
0, // 0° (no rotation)
0 // 0° (no side lean)
),
// Left leg - Deep bend for low center
leftLeg: {
hip: new THREE.Euler(
0, // 0° (neutral hip)
0, // 0°
0 // 0°
),
knee: new THREE.Euler(
-0.87, // -50° (deep bend)
0, // 0°
0 // 0°
),
ankle: new THREE.Euler(
0.35, // 20° (dorsiflexion for weight)
0, // 0°
0 // 0°
),
},
// Right leg - Mirror left for symmetric stance
rightLeg: {
hip: new THREE.Euler(
0, // 0° (neutral hip)
0, // 0°
0 // 0°
),
knee: new THREE.Euler(
-0.87, // -50° (deep bend)
0, // 0°
0 // 0°
),
ankle: new THREE.Euler(
0.35, // 20° (dorsiflexion for weight)
0, // 0°
0 // 0°
),
},
// Pelvis - Hips back for stability
pelvis: new THREE.Euler(
-0.35, // -20° (hips back)
0, // 0° (no rotation)
0 // 0° (no tilt)
),
// Stance width - Wide base for stability
stanceWidth: 1.2, // 1.2x shoulder width
// Stance depth - Neutral parallel stance
stanceDepth: 0, // 0m (feet parallel)
// Pelvis height - Lowered for grappling
pelvisHeight: -0.15, // -15cm (lower center of gravity)
// Weight distribution - Neutral for movement
weight: "neutral",
// Breathing range - Chest expansion in low position
breathingRange: {
min: 0.98, // Slight compression
max: 1.02, // Slight expansion
},
};
/**
* Gon Guard Variants
*
* Collection of Gon guard positions for different scenarios.
*
* Currently contains only the low grappling guard. Additional guard variants
* (e.g., high wrestling guard, sprawl position) may be added in future updates
* to provide more tactical options for the Gon trigram stance.
*
* @korean 곤괘방어변형들
*/
export const GON_GUARD_VARIANTS = {
/**
* Low Grappling Guard - Default Gon guard position
* @korean 낮은잡기방어
*/
LOW_GRAPPLING: GON_LOW_GRAPPLING_GUARD
} as const;
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