simple-index.ts•2.57 kB
#!/usr/bin/env node
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema, ListToolsRequestSchema } from '@modelcontextprotocol/sdk/types.js';
import { UnityMcpTools } from './tools/unity-mcp-tools.js';
/**
* Simple Unity MCP Server
* Provides Unity Editor integration through MCP protocol
*/
class UnityMcpServer {
private server: Server;
private tools: UnityMcpTools;
constructor() {
this.tools = new UnityMcpTools();
this.server = new Server(
{
name: 'unity-mcp-server',
version: '1.0.0',
},
{
capabilities: {
tools: {},
},
}
);
this.setupHandlers();
}
private setupHandlers() {
// Handle tool listing
this.server.setRequestHandler(ListToolsRequestSchema, async () => ({
tools: this.tools.getTools(),
}));
// Handle tool execution
this.server.setRequestHandler(CallToolRequestSchema, async (request) => {
return this.tools.executeTool(request.params.name, request.params.arguments || {});
});
}
async run() {
try {
console.error('[Unity MCP] Starting server...');
const transport = new StdioServerTransport();
console.error('[Unity MCP] Connecting to transport...');
await this.server.connect(transport);
console.error('[Unity MCP] Server connected successfully');
// Keep the process alive - this is critical!
process.stdin.resume();
process.on('SIGINT', () => {
console.error('[Unity MCP] Received SIGINT, shutting down...');
process.exit(0);
});
process.on('SIGTERM', () => {
console.error('[Unity MCP] Received SIGTERM, shutting down...');
process.exit(0);
});
// Log that we're ready
console.error('[Unity MCP] Server is ready and listening');
} catch (error) {
console.error('[Unity MCP] Failed to start server:', error);
throw error;
}
}
}
// Main entry point
const server = new UnityMcpServer();
server.run().catch((error) => {
console.error('[Unity MCP] Fatal error:', error);
process.exit(1);
});
// Handle uncaught errors
process.on('uncaughtException', (error) => {
console.error('[Unity MCP] Uncaught exception:', error);
process.exit(1);
});
process.on('unhandledRejection', (reason, promise) => {
console.error('[Unity MCP] Unhandled rejection at:', promise, 'reason:', reason);
process.exit(1);
});