World Space Health Bars That Follow Units

Learn how to make Health Bars that stay above the heads of units in World Space!

A common need in games is to show Health Bars over some enemy or unit. In this tutorial we'll take a look at one way to achieve that in a way that enables us to retain the benefits of sliced and filled Sprites.

I also discuss some of the "gotchas" that you may encounter as you implement this in terms of both performance and strange behaviors.

👨‍💻 As always, all code from this video is available on GitHub: https://github.com/llamacademy/worldspace-health-bars

🏷️Save 25% on the ultimate C# IDE: JetBrains Rider with code LLAMACADEMY: https://www.jetbrains.com/store/?section=personal&billing=yearly

📚 Resources

We're not starting from scratch in this video, so if something doesn't make sense to you, check out the previous videos that implemented that specific piece of functionality:

⚫ Progress Bars - https://youtu.be/Qw8odLHv38Q

⚫ Explosions with Obstructions - https://youtu.be/ZoyFL8tH0SU

⚫ Spawning NavMeshAgents at Runtime - https://youtu.be/5uO0dXYbL-s

⚫ Introduction to NavMeshes in Unity - https://youtu.be/aHFSDcEQuzQ

Each of these has their own GitHub repository as well that allows you to get an exact replica of the project I made in the tutorial to explore at your own pace.

As usual when we use a NavMesh, we're using the NavMesh Components: https://docs.unity3d.com/Manual/NavMesh-BuildingComponents.html not the built-in navigation system.

🧡 Believe in LlamAcademy's mission and have received value from the videos? Here's how you can show your support:

🌟 Patreon: https://www.patreon.com/llamacademy

🌟 YouTube Member: https://www.youtube.com/channel/UCnWm6pMD38R1E2vCAByGb6w/join or click the Join button on any video

📚 Take my Unity ShaderGraph Course:

https://www.gamedev.tv/p/unity-shader-graph?affcode=45216_kuvg0bp7

👕 Get yourself some LlamAcademy merch: https://llamacademy.myspreadshop.com/

💸 Use my Affiliate Link for Humble Bundles https://humblebundleinc.sjv.io/9g4ak4

💸 Publisher Sale! 50% OFF an entire publisher's Assets! Publisher changes weekly! https://assetstore.unity.com/publisher-sale?aid=1101l9QvC (affiliate)

💸 Save up to 50% on NEW Assets: https://assetstore.unity.com/?new_sale=true&orderBy=1&aid=1101l9QvC (affiliate)

Some links may be affiliate links, which at no additional cost to you, gives me a small portion of the purchase.