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* TrainingScreen3D - Three.js-based training screen
*
* Provides 3D training dummy with vital point targeting and Html UI overlays
*/
import { Html } from "@react-three/drei";
import { Canvas } from "@react-three/fiber";
import React, {
useCallback,
useEffect,
useMemo,
useState,
} from "react";
import { useWebGLContextLossHandler } from "../../hooks/useWebGLContextLossHandler";
import { PlayerState } from "../../systems";
import { useAudio } from "../../audio/AudioProvider";
import { Position, TrigramStance } from "../../types/common";
import { KOREAN_COLORS } from "../../types/constants";
import { usePlayerMovement } from "../../utils/inputSystem";
import { VolumeControl } from "../ui/VolumeControl";
import TrainingArena3D from "./components/TrainingArena3D";
import TrainingDummy3D from "./components/TrainingDummy3D";
import TrainingHitEffects3D from "./components/TrainingHitEffects3D";
import TrainingControlsHTML from "./components/TrainingControlsHTML";
import TrainingStatsHTML, { type TrainingStats } from "./components/TrainingStatsHTML";
import VitalPointTrainingHTML from "./components/VitalPointTrainingHTML";
import TrainingModeSelectorHTML, { type TrainingMode } from "./components/TrainingModeSelectorHTML";
import TrainingFeedbackHTML from "./components/TrainingFeedbackHTML";
/**
* Props for the TrainingScreen3D component
*/
export interface TrainingScreen3DProps {
/** Callback to update player state */
readonly onPlayerUpdate: (updates: Partial<PlayerState>) => void;
/** Callback when returning to menu */
readonly onReturnToMenu: () => void;
/** Canvas width in pixels. Defaults to 1200 */
readonly width?: number;
/** Canvas height in pixels. Defaults to 800 */
readonly height?: number;
}
/**
* Hit effect state
*/
interface HitEffect {
readonly id: number;
readonly position: [number, number, number];
readonly type: "success" | "perfect" | "miss";
readonly visible: boolean;
}
/**
* TrainingScreen3D Component
* Three.js-based training screen with 3D dummy and Html UI
*/
export const TrainingScreen3D: React.FC<TrainingScreen3DProps> = ({
onPlayerUpdate,
onReturnToMenu,
width = 1200,
height = 800,
}) => {
// Handle WebGL context loss and restoration
useWebGLContextLossHandler({
onContextLost: () => {
console.warn('⚠️ WebGL context lost in TrainingScreen');
},
onContextRestored: () => {
console.log('✅ WebGL context restored in TrainingScreen');
},
autoRestore: true,
});
// Training state
const [trainingMode, setTrainingMode] = useState<TrainingMode>("basics");
const [isTraining, setIsTraining] = useState(false);
const [selectedVitalPoint, setSelectedVitalPoint] = useState<string | null>(null);
const [feedback, setFeedback] = useState("");
const [showFeedback, setShowFeedback] = useState(false);
const [hitEffects, setHitEffects] = useState<HitEffect[]>([]);
const [nextEffectId, setNextEffectId] = useState(0);
// Training statistics
const [stats, setStats] = useState<TrainingStats>({
score: 0,
combo: 0,
hits: 0,
misses: 0,
accuracy: 0,
});
// Responsive detection
const isMobile = useMemo(() => width < 768, [width]);
// Audio context
const audio = useAudio();
// Audio lifecycle management
useEffect(() => {
let audioStarted = false;
const startMusic = async () => {
try {
await audio.fadeIn("cyberpunk_fusion", 2000);
audioStarted = true;
} catch (err) {
console.warn("Failed to start training music:", err);
// Show user-visible feedback that audio failed
setFeedback("오디오 초기화 실패 | Audio initialization failed");
setShowFeedback(true);
}
};
void startMusic();
return () => {
Eif (audioStarted) {
void audio.fadeOut(2000).then(() => audio.stopMusic()).catch((err) =>
console.warn("Failed to stop training music:", err)
);
}
};
}, [audio]);
// Arena bounds for player movement
const arenaBounds = useMemo(
() => ({
x: -8,
y: -6,
width: 16,
height: 12,
}),
[]
);
// Initial player position in 3D space
const initialPosition = useMemo<Position>(
() => ({
x: -5,
y: 0,
}),
[]
);
// Player movement with input system
const { playerPosition } = usePlayerMovement({
enabled: isTraining,
bounds: arenaBounds,
onPositionChange: (newPosition: Position) => {
onPlayerUpdate({ position: newPosition });
},
initialPosition,
moveSpeed: 300,
});
// Convert 2D position to 3D
const player3DPosition = useMemo<[number, number, number]>(
() => [playerPosition.x, 0, playerPosition.y],
[playerPosition]
);
// Training handlers
const handleStartTraining = useCallback(() => {
setIsTraining(true);
setStats({
score: 0,
combo: 0,
hits: 0,
misses: 0,
accuracy: 0,
});
setFeedback("훈련 시작! | Training Start!");
setShowFeedback(true);
audio.playSFX("menu_select");
}, [audio]);
const handleStopTraining = useCallback(() => {
setIsTraining(false);
setFeedback("훈련 종료 | Training End");
setShowFeedback(true);
audio.playSFX("menu_back");
}, [audio]);
const handleDummyHit = useCallback(
(_vitalPointId: string, accuracy: number): boolean => {
if (!isTraining) return false;
// Determine hit position (dummy is at [5, 0, 0])
const hitPosition: [number, number, number] = [5, 1.5, 0];
let effectType: "success" | "perfect" | "miss";
if (accuracy > 0.5) {
const points = Math.round(accuracy * 100);
setStats((prev) => {
const newHits = prev.hits + 1;
const totalAttempts = newHits + prev.misses;
return {
score: prev.score + points,
combo: prev.combo + 1,
hits: newHits,
misses: prev.misses,
accuracy: totalAttempts > 0 ? (newHits / totalAttempts) * 100 : 0,
};
});
if (accuracy > 0.9) {
setFeedback("완벽한 타격! | Perfect Strike!");
audio.playSFX("ki_release");
effectType = "perfect";
} else if (accuracy > 0.7) {
setFeedback("좋은 타격! | Good Strike!");
audio.playSFX("ki_charge");
effectType = "success";
} else {
setFeedback("타격 성공 | Strike Success");
audio.playSFX("menu_click");
effectType = "success";
}
setShowFeedback(true);
// Add hit effect
setHitEffects((prev) => [
...prev,
{
id: nextEffectId,
position: hitPosition,
type: effectType,
visible: true,
},
]);
setNextEffectId((prev) => prev + 1);
return true;
} else {
setStats((prev) => {
const newMisses = prev.misses + 1;
const totalAttempts = prev.hits + newMisses;
return {
...prev,
combo: 0,
misses: newMisses,
accuracy: totalAttempts > 0 ? (prev.hits / totalAttempts) * 100 : 0,
};
});
setFeedback("빗나감 | Miss");
setShowFeedback(true);
audio.playSFX("menu_navigate");
// Add miss effect
setHitEffects((prev) => [
...prev,
{
id: nextEffectId,
position: hitPosition,
type: "miss",
visible: true,
},
]);
setNextEffectId((prev) => prev + 1);
return false;
}
},
[isTraining, audio, nextEffectId]
);
// Consolidated keyboard input handling
useEffect(() => {
const handleKeyDown = (event: KeyboardEvent) => {
const key = event.key.toLowerCase();
// ESC key - return to menu
if (key === "escape") {
onReturnToMenu();
return;
}
// Training mode controls only work when training is active
if (!isTraining) return;
// Handle stance changes (1-8)
if (key >= "1" && key <= "8") {
const stanceIndex = parseInt(key) - 1;
const stances: readonly TrigramStance[] = [
TrigramStance.GEON,
TrigramStance.TAE,
TrigramStance.LI,
TrigramStance.JIN,
TrigramStance.SON,
TrigramStance.GAM,
TrigramStance.GAN,
TrigramStance.GON,
];
onPlayerUpdate({
currentStance: stances[stanceIndex],
lastActionTime: Date.now(),
});
audio.playSFX("stance_change_1");
event.preventDefault();
}
// Handle attacks (Space key)
if (key === " ") {
// Calculate distance to dummy (at position [5, 0, 0])
// Use squared distance to avoid expensive Math.sqrt
const dx = player3DPosition[0] - 5;
const dz = player3DPosition[2] - 0;
const squaredDistance = dx * dx + dz * dz;
const accuracy = Math.max(0, 1 - squaredDistance / 64);
handleDummyHit(selectedVitalPoint ?? "generic", accuracy);
event.preventDefault();
}
};
window.addEventListener("keydown", handleKeyDown);
return () => window.removeEventListener("keydown", handleKeyDown);
}, [isTraining, player3DPosition, selectedVitalPoint, onPlayerUpdate, handleDummyHit, audio, onReturnToMenu]);
// Hide feedback after delay
useEffect(() => {
Iif (showFeedback) {
const timer = setTimeout(() => setShowFeedback(false), 2000);
return () => clearTimeout(timer);
}
}, [showFeedback]);
// Handle hit effect completion
const handleEffectComplete = useCallback((effectId: number) => {
setHitEffects((prev) => prev.filter((effect) => effect.id !== effectId));
}, []);
// Memoize camera configuration for stable reference
const cameraConfig = useMemo(
() => ({
position: [0, 8, 12] as [number, number, number],
fov: 60,
}),
[]
);
return (
<div
style={{
width: `${width}px`,
height: `${height}px`,
position: "relative",
}}
data-testid="training-screen-3d"
>
<Canvas
style={{ width, height }}
gl={{
antialias: true,
alpha: false,
powerPreference: "high-performance",
}}
dpr={[1, 2]}
shadows
onCreated={({ gl }) => {
gl.setClearColor(KOREAN_COLORS.UI_BACKGROUND_DARK, 1);
}}
camera={cameraConfig}
>
{/* Korean-themed lighting (오방색 - Five Cardinal Colors) */}
<ambientLight intensity={0.4} color={KOREAN_COLORS.PRIMARY_CYAN} />
{/* Main directional light - Center (황색/Yellow) */}
<directionalLight
position={[0, 10, 5]}
intensity={1}
color={KOREAN_COLORS.SECONDARY_YELLOW}
castShadow
shadow-mapSize={[2048, 2048]}
/>
{/* East (청색/Blue-Green) */}
<pointLight
position={[10, 5, 0]}
intensity={0.6}
color={KOREAN_COLORS.ACCENT_GREEN}
distance={20}
/>
{/* West (백색/White) */}
<pointLight
position={[-10, 5, 0]}
intensity={0.6}
color={KOREAN_COLORS.WHITE_SOLID}
distance={20}
/>
{/* South (적색/Red) */}
<pointLight
position={[0, 5, 10]}
intensity={0.5}
color={KOREAN_COLORS.ACCENT_RED}
distance={20}
/>
{/* North (흑색/Black) - dim for depth */}
<pointLight
position={[0, 5, -10]}
intensity={0.3}
color={KOREAN_COLORS.UI_BACKGROUND_MEDIUM}
distance={20}
/>
{/* Training arena ground */}
<TrainingArena3D />
{/* Training dummy at fixed position */}
<TrainingDummy3D
position={[5, 0, 0]}
selectedVitalPoint={selectedVitalPoint}
isTraining={isTraining}
/>
{/* Player model (simplified for now) */}
<group position={player3DPosition}>
<mesh castShadow receiveShadow>
<capsuleGeometry args={[0.4, 1.2, 16, 32]} />
<meshStandardMaterial
color={KOREAN_COLORS.ACCENT_GOLD}
metalness={0.3}
roughness={0.7}
/>
</mesh>
</group>
{/* Hit effects */}
{hitEffects.map((effect) => (
<TrainingHitEffects3D
key={effect.id}
position={effect.position}
type={effect.type}
visible={effect.visible}
onComplete={() => handleEffectComplete(effect.id)}
/>
))}
{/* Html UI Overlays */}
<Html fullscreen>
<div
style={{
width: "100%",
height: "100%",
pointerEvents: "none",
position: "relative",
}}
>
{/* Top Left - Training Controls */}
<div
style={{
position: "absolute",
top: 20,
left: 20,
pointerEvents: "all",
}}
>
<TrainingControlsHTML
isTraining={isTraining}
onStartTraining={handleStartTraining}
onStopTraining={handleStopTraining}
isMobile={isMobile}
/>
</div>
{/* Top Right - Training Stats */}
<div
style={{
position: "absolute",
top: 20,
right: 20,
pointerEvents: "all",
display: "flex",
flexDirection: "column",
gap: "10px",
alignItems: "flex-end",
}}
>
<VolumeControl position="custom" compact={isMobile} />
<TrainingStatsHTML
stats={stats}
isMobile={isMobile}
/>
</div>
{/* Bottom Left - Mode Selector */}
<div
style={{
position: "absolute",
bottom: 20,
left: 20,
pointerEvents: "all",
}}
>
<TrainingModeSelectorHTML
currentMode={trainingMode}
onModeChange={setTrainingMode}
isMobile={isMobile}
/>
</div>
{/* Bottom Right - Vital Point Panel */}
<div
style={{
position: "absolute",
bottom: 20,
right: 20,
pointerEvents: "all",
}}
>
<VitalPointTrainingHTML
selectedVitalPoint={selectedVitalPoint}
onVitalPointSelect={setSelectedVitalPoint}
isMobile={isMobile}
/>
</div>
{/* Center - Feedback Message */}
{showFeedback && (
<div
style={{
position: "absolute",
top: "50%",
left: "50%",
transform: "translate(-50%, -50%)",
pointerEvents: "none",
}}
>
<TrainingFeedbackHTML
message={feedback}
isMobile={isMobile}
/>
</div>
)}
</div>
</Html>
</Canvas>
</div>
);
};
export default TrainingScreen3D;
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