🎯 Type-Safe
Full TypeScript support with intelligent autocompletion and compile-time validation. Catch errors early and build with confidence.
🔧 Flexible
Support for complex conditions, priorities, and stacking rules. Build simple systems or complex RPG mechanics with the same API.
⚡ Performance
Optimized evaluation engine with minimal overhead. Handle complex modifier systems without sacrificing performance.
Simple yet Powerful
Build complex modification systems with just a few lines of code
📝 Define Configuration
const config = defineConfig({
metrics: ["Health", "Damage"] as const,
operations: ["sum", "multiply"] as const,
attributes: [{
key: "Rarity",
kind: "enum",
values: ["Common", "Epic"] as const
}] as const,
});⚡ Build & Evaluate
const sword = engine
.builder("Epic Sword")
.set("Rarity", "Epic")
.increase("Damage").by(100)
.when({ op: "eq", attr: "Rarity", value: "Epic" })
.multiply("Damage").by(1.5)
.build();
const result = engine.evaluate(sword);
// { Health: 0, Damage: 150 }