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* BackgroundScene3D - Shared cyberpunk Korean-themed 3D background scene
*
* @korean 배경씬3D - 공유 사이버펑크 한국 테마 3D 배경 씬
*
* Eliminates duplication across IntroScreen, ControlsScreen, and PhilosophyScreen
*/
import { useFrame } from "@react-three/fiber";
import React, { useRef } from "react";
import * as THREE from "three";
import { KOREAN_COLORS } from "../../types/constants";
/**
* Color theme variants for background scenes
*/
export type BackgroundTheme = "intro" | "controls" | "philosophy" | "default";
export interface BackgroundScene3DProps {
/**
* Color theme for the background
* @default "default"
*/
readonly theme?: BackgroundTheme;
/**
* Grid rotation speed (radians per frame)
* @default 0.0005
*/
readonly gridRotationSpeed?: number;
/**
* Grid position Y offset
* @default -8
*/
readonly gridPositionY?: number;
/**
* Grid size
* @default 80
*/
readonly gridSize?: number;
/**
* Grid divisions
* @default 40
*/
readonly gridDivisions?: number;
/**
* Fog near distance
* @default 5
*/
readonly fogNear?: number;
/**
* Fog far distance
* @default 40
*/
readonly fogFar?: number;
/**
* Ambient light intensity
* @default 0.4
*/
readonly ambientIntensity?: number;
/**
* Directional light intensity
* @default 1
*/
readonly directionalIntensity?: number;
/**
* Point light intensity
* @default 0.5
*/
readonly pointIntensity?: number;
}
/**
* Theme color configurations
*/
const THEME_COLORS: Record<
BackgroundTheme,
{
ambient: number;
grid: number;
point: number;
ambientIntensity: number;
directionalIntensity: number;
pointIntensity: number;
}
> = {
intro: {
ambient: KOREAN_COLORS.PRIMARY_CYAN,
grid: KOREAN_COLORS.PRIMARY_CYAN,
point: KOREAN_COLORS.ACCENT_BLUE,
ambientIntensity: 0.4,
directionalIntensity: 1,
pointIntensity: 0.5,
},
controls: {
ambient: KOREAN_COLORS.PRIMARY_CYAN,
grid: KOREAN_COLORS.PRIMARY_CYAN,
point: KOREAN_COLORS.ACCENT_BLUE,
ambientIntensity: 0.3,
directionalIntensity: 0.8,
pointIntensity: 0.4,
},
philosophy: {
ambient: KOREAN_COLORS.ACCENT_GOLD,
grid: KOREAN_COLORS.ACCENT_GOLD,
point: KOREAN_COLORS.PRIMARY_CYAN,
ambientIntensity: 0.3,
directionalIntensity: 0.8,
pointIntensity: 0.4,
},
default: {
ambient: KOREAN_COLORS.PRIMARY_CYAN,
grid: KOREAN_COLORS.PRIMARY_CYAN,
point: KOREAN_COLORS.ACCENT_BLUE,
ambientIntensity: 0.4,
directionalIntensity: 1,
pointIntensity: 0.5,
},
};
/**
* Shared 3D Background Scene Component
*
* Renders cyberpunk Korean-themed 3D background with rotating grid,
* atmospheric lighting, and fog effects.
*
* @korean 사이버펑크 한국 테마의 3D 배경을 렌더링합니다.
* 회전하는 그리드, 분위기 있는 조명, 안개 효과를 포함합니다.
*/
export const BackgroundScene3D: React.FC<BackgroundScene3DProps> = ({
theme = "default",
gridRotationSpeed = 0.0005,
gridPositionY = -8,
gridSize = 80,
gridDivisions = 40,
fogNear = 5,
fogFar = 40,
ambientIntensity,
directionalIntensity,
pointIntensity,
}) => {
const gridRef = useRef<THREE.GridHelper>(null);
// Get theme colors
const themeColors = THEME_COLORS[theme];
// Use props or theme defaults
const finalAmbientIntensity =
ambientIntensity ?? themeColors.ambientIntensity;
const finalDirectionalIntensity =
directionalIntensity ?? themeColors.directionalIntensity;
const finalPointIntensity = pointIntensity ?? themeColors.pointIntensity;
// Animate grid using useFrame for proper sync with render loop
useFrame(() => {
if (gridRef.current) {
gridRef.current.rotation.y += gridRotationSpeed;
}
});
return (
<>
{/* Ambient lighting */}
<ambientLight
intensity={finalAmbientIntensity}
color={themeColors.ambient}
/>
{/* Directional lights for Korean aesthetic */}
<directionalLight
position={[10, 10, 5]}
intensity={finalDirectionalIntensity}
color={KOREAN_COLORS.ACCENT_GOLD}
/>
<pointLight
position={[-10, 5, -5]}
intensity={finalPointIntensity}
color={themeColors.point}
/>
{/* Cyberpunk grid plane - positioned lower with fog to hide edges */}
<gridHelper
ref={gridRef}
args={[
gridSize,
gridDivisions,
themeColors.grid,
KOREAN_COLORS.UI_BACKGROUND_MEDIUM,
]}
position={[0, gridPositionY, 0]}
rotation={[0, 0, 0]}
/>
{/* Fog for depth - starts closer to hide grid edges */}
<fog
attach="fog"
args={[KOREAN_COLORS.UI_BACKGROUND_DARK, fogNear, fogFar]}
/>
</>
);
};
export default BackgroundScene3D;
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