ixfx
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    Function perSecond

    • Returns a proportion of amount depending on elapsed time. Cumulatively, amount is yielded every second.

      // Calculate a proportion of 0.1 every second
      const x = perSecond(0.1);
      x();

      The faster x() is called, the smaller the chunks of amount are returned. Values accumulate. For example, x() isn't called for two seconds, 2*amount is returned.

      Parameters

      • amount: number
      • options: Partial<{ clamp: boolean; max: number; min: number }> = {}

      Returns ModSource

      const settings = {
       ageMod: perSecond(0.1);
      };

      let state = {
       age: 1
      };

      // Update
      setInterval(() => {
       let { age } = state;
       // Add 0.1 per second, regardless of 
       // loop speed
       age += settings.ageMod(); 
       state = {
         ...state,
         age: clamp(age)
       }
      });

      Use the clamp option so the returned value never exceeds amount. Alternatively, min/max options allow you to set arbitrary limits.

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