Files
La-Fabrik/src/components/game/GameMap.tsx
T

104 lines
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TypeScript

import { useEffect, useState, useMemo, useRef } from "react";
import { useGLTF } from "@react-three/drei";
import * as THREE from "three";
import { useOctreeGraphNode } from "@/hooks/useOctreeGraphNode";
import type { OctreeReadyHandler } from "@/types/3d";
import type { MapNode } from "@/types/editor";
const MAP_JSON_PATH = "/map.json";
interface GameMapProps {
onOctreeReady: OctreeReadyHandler;
}
export function GameMap({ onOctreeReady }: GameMapProps): React.JSX.Element {
const [mapNodes, setMapNodes] = useState<MapNode[]>([]);
const [availableModels, setAvailableModels] = useState<Set<string>>(
new Set(),
);
const [isLoading, setIsLoading] = useState(true);
const groupRef = useRef<THREE.Group>(null);
useOctreeGraphNode(groupRef, onOctreeReady);
useEffect(() => {
const loadMap = async () => {
try {
const nodesResponse = await fetch(MAP_JSON_PATH);
if (!nodesResponse.ok) {
console.warn("map.json not found");
setIsLoading(false);
return;
}
const nodes: MapNode[] = await nodesResponse.json();
setMapNodes(nodes);
const uniqueModelNames = [...new Set(nodes.map((n) => n.name))];
const available = new Set<string>();
for (const modelName of uniqueModelNames) {
try {
const modelUrl = `/models/${modelName}/model.gltf`;
const modelResponse = await fetch(modelUrl);
const contentType = modelResponse.headers.get("content-type") || "";
if (contentType.includes("gltf") || contentType.includes("model")) {
available.add(modelName);
}
} catch {
/* empty */
}
}
setAvailableModels(available);
} catch (error) {
console.error("Error loading map:", error);
} finally {
setIsLoading(false);
}
};
loadMap();
}, []);
const nodesToRender = useMemo(() => {
return mapNodes.filter((node) => availableModels.has(node.name));
}, [mapNodes, availableModels]);
if (isLoading) {
return <></>;
}
return (
<group ref={groupRef}>
{nodesToRender.map((node, index) => (
<ModelInstance key={index} node={node} />
))}
</group>
);
}
function ModelInstance({ node }: { node: MapNode }): React.JSX.Element {
const modelPath = `/models/${node.name}/model.gltf`;
const groupRef = useRef<THREE.Group>(null);
const { scene } = useGLTF(modelPath);
const { position, rotation, scale } = node;
useEffect(() => {
if (groupRef.current) {
groupRef.current.position.set(...position);
groupRef.current.rotation.set(...rotation);
groupRef.current.scale.set(...scale);
}
}, [position, rotation, scale]);
return (
<primitive
ref={groupRef}
object={scene}
position={position}
rotation={rotation}
scale={scale}
/>
);
}