Agent skill

dev-patterns-mobile-haptics

Haptic feedback patterns for mobile games using Vibration API. Use when adding tactile feedback.

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/dev-patterns-mobile-haptics

SKILL.md

Mobile Haptics

"Haptic feedback transforms flat screens into tactile experiences."

When to Use

Use when:

  • Building mobile/touch controls
  • Adding game feel to actions
  • Providing feedback for UI interactions
  • Enhancing immersion on mobile devices

Quick Start

tsx
// Simple vibration feedback
function triggerHaptic(duration = 10) {
  if ('vibrate' in navigator) {
    navigator.vibrate(duration);
  }
}

// Usage
<button onClick={() => triggerHaptic(10)}>Tap</button>

Browser Support

Browser Android iOS Notes
Chrome ✅ Full ❌ No Full Vibration API support
Firefox ✅ Full ❌ No Full Vibration API support
Safari ✅ Full ❌ No Desktop only
Edge ✅ Full ❌ No Chromium-based

iOS Note: iOS does NOT support the Vibration API. Use Taptic Engine feedback via native wrappers (Capacitor, React Native) for iOS.

Tap Feedback (UI Interactions)

tsx
// Light tap for button presses
function tapFeedback() {
  navigator.vibrate(10); // 10ms - very subtle
}

// Medium tap for toggle switches
function toggleFeedback() {
  navigator.vibrate(25); // 25ms - noticeable
}

// Heavy tap for confirm actions
function confirmFeedback() {
  navigator.vibrate(50); // 50ms - strong
}

Impact Patterns (Game Actions)

tsx
// Light impact - shooting, collecting items
function lightImpact() {
  navigator.vibrate(15);
}

// Medium impact - jumping, landing
function mediumImpact() {
  navigator.vibrate(30);
}

// Heavy impact - explosions, damage
function heavyImpact() {
  navigator.vibrate([50, 30, 50]); // Pattern: hit, pause, hit
}

Success Pattern

tsx
// Success - triple tap pattern
function successHaptic() {
  navigator.vibrate([10, 50, 10, 50, 10]);
}

// Level complete - ascending pattern
function levelCompleteHaptic() {
  navigator.vibrate([10, 50, 20, 50, 30]);
}

Error Pattern

tsx
// Error - double tap
function errorHaptic() {
  navigator.vibrate([50, 100, 50]);
}

// Deny - single long pulse
function denyHaptic() {
  navigator.vibrate(100);
}

Game-Specific Patterns

tsx
// Shooting feedback
function shootFeedback() {
  navigator.vibrate(15);
}

// Empty ammo click
function emptyClickFeedback() {
  navigator.vibrate([10, 30, 10]);
}

// Light damage
function lightDamageFeedback() {
  navigator.vibrate(25);
}

// Heavy damage
function heavyDamageFeedback() {
  navigator.vibrate([80, 20, 80]);
}

// Death/respawn
function deathFeedback() {
  navigator.vibrate([100, 50, 100, 50, 200]);
}

Movement Feedback

tsx
// Footsteps - subtle, rhythmic
let stepCount = 0;
function stepFeedback() {
  // Only vibrate every 3rd step
  if (stepCount % 3 === 0) {
    navigator.vibrate(5);
  }
  stepCount++;
}

// Jump
function jumpFeedback() {
  navigator.vibrate([10, 20, 30]); // Ascending pattern
}

// Landing
function landFeedback() {
  const intensity = Math.min(fallDistance / 10, 1);
  navigator.vibrate(20 + intensity * 40);
}

Best Practices

  1. Don't overuse - Too much vibration desensitizes users
  2. Match action intensity - Heavy actions = stronger haptics
  3. Consider battery - Haptics consume battery
  4. Provide settings - Allow users to disable or adjust intensity
  5. Test on devices - Emulators don't show haptics

Reference

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