Multiplayer Game Tutorial with R3F & Socket.io: Pathfinding
Overview
In this tutorial, we'll explore how to add multiplayer networking features to a 3D game using React Three Fiber and Socket.io. Think of it as building a Sims-like or Animal Crossing-like experience, where multiple players can interact within the same virtual world.
This is the third episode in a seven-part series where we’ll build a multiplayer 3D game step by step.
PMaking Characters Move Around Objects
In this third episode, we’re adding a pathfinding system to our Sims-like multiplayer game. Until now, our characters could walk through objects, but it's time to fix that.
Instead of using a physics engine, we’ll take advantage of our grid system and implement a pathfinding algorithm to calculate the best route around obstacles. This will allow characters to navigate the environment naturally, making movement more realistic.
Insights and Skills
In this episode, you will:
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Integrate a pathfinding algorithm to avoid objects when moving.
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Set up a walkable grid where characters can navigate freely.
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Prepare and export 3D assets for proper positioning within the grid.
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Fix rotation issues using item width and height for better alignment.
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Use PathFinding.js to determine the shortest path to a destination.
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Implement server-side movement logic to ensure all clients stay in sync.
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Optimize movement updates so only the moving character gets updated, rather than all players.
By the end of this episode, characters will follow a realistic path, avoiding obstacles while reaching their destination.
Tech Stack
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React Three Fiber
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Socket.io
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Blender
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PathFinding.js
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Custom Hooks
Code Links
Resources
#threejs #r3f #socketio
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