health-bars

from verekia/r3f-gamedev

⚛️ React Three Fiber Game Dev Recipes

19 stars0 forksUpdated Jan 21, 2026
npx skills add https://github.com/verekia/r3f-gamedev --skill health-bars

SKILL.md

Health Bars

Display health bars above characters using CSS styling.

Technique

Use Drei's Html component to render styled health bars in 3D space. Update the health bar width by manipulating the DOM element's transform: scaleX() via a ref in useFrame.

Key Concepts

  • Html from @react-three/drei with center and distanceFactor props
  • Use refs to directly manipulate DOM styles for performance
  • scaleX transform for smooth width changes with CSS transitions
  • Style with CSS (gradients, borders, skew transforms)

Usage

const healthRef = useRef<HTMLDivElement>(null)

useFrame(() => {
  healthRef.current.style.transform = `scaleX(${healthPercent})`
}, { fps: 1 })

<Html center position-y={1.5} distanceFactor={5}>
  <div className="bg-red-500">
    <div ref={healthRef} className="bg-green-500 origin-left transition-transform" />
  </div>
</Html>

This skill is part of verekia's r3f-gamedev.

Repository

verekia
verekia/r3f-gamedevParent repository

Repository Stats

Stars19
Forks0
LicenseMIT License