Create game-like interfaces with state-driven visuals for health, XP, mana, and other game metrics.
Progress Bar Pattern
Build on the Progress component with game-specific variants:
```tsx
import { Progress } from "@/components/ui/8bit/progress";
function HealthBar({ value = 100, ...props }: BitProgressProps) {
return (
{...props}
value={value}
variant="retro"
progressBg="bg-red-500"
/>
);
}
function ManaBar({ value = 100, ...props }: BitProgressProps) {
return (
{...props}
value={value}
variant="retro"
progressBg="bg-blue-500"
/>
);
}
function XpBar({ value = 0, ...props }: BitProgressProps) {
return (
{...props}
value={value}
variant="retro"
progressBg="bg-yellow-500"
/>
);
}
```
Level Up Notification
Show animated messages when thresholds are reached:
```tsx
function XpBar({
value,
levelUpMessage = "LEVEL UP!",
...props
}: XpBarProps) {
const isLevelUp = value === 100;
return (
{...props}
value={value}
progressBg="bg-yellow-500"
className={cn(isLevelUp && "animate-pulse")}
/>
{isLevelUp && (
className={cn(
"retro",
"absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2",
"text-[0.625rem] text-black",
"pointer-events-none whitespace-nowrap z-10",
"drop-shadow-[1px_1px_0_#fff] [text-shadow:1px_1px_0_#fff,-1px_-1px_0_#fff,1px_-1px_0_#fff,-1px_1px_0_#fff]",
"animate-[blink_0.5s_step-end_infinite]"
)}
>
{levelUpMessage}
)}
);
}
```
Conditional Animations
Use conditional classes for game state feedback:
```tsx
className={cn(
"transition-colors duration-300",
health <= 25 ? "animate-pulse bg-red-500/20" : "bg-green-500",
health > 25 && health <= 50 && "bg-yellow-500/20"
)}
/>
```
Enemy Health Display
Compact display for combat scenarios:
```tsx
function EnemyHealth({ health, maxHealth }: EnemyHealthProps) {
const percentage = (health / maxHealth) * 100;
return (
ENEMY
{health}/{maxHealth}
);
}
```
Key Principles
- Base component - Extend Progress, don't reimplement
- Color coding - Red (health), Blue (mana), Yellow (XP), Green (stamina)
- Retro text - Use
.retro class for pixel font numbers - State animations - Use
animate-pulse, animate-blink for feedback - Text shadows - White text-shadow for legibility on colored backgrounds
- Compact sizing - Smaller text (text-xs, text-[0.625rem]) for game UIs
Reference Components
components/ui/8bit/health-bar.tsx - Health bar implementationcomponents/ui/8bit/xp-bar.tsx - XP bar with level up notificationcomponents/ui/8bit/mana-bar.tsx - Mana bar implementation