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@Tiramisu77
Last active January 16, 2019 22:11
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const calculateEarnedMerit = function(activity, rawMerit){
const meritStartDate = new Date("January 24, 2018")
const today = Date.now()
const startMerits = {
"Brand new": 0,
"Newbie":0,
"Jr Member": 1,
"Member": 10,
"Full Member": 100,
"Sr. Member": 250,
"Hero Member": 500,
"Legendary": 1000
}
const activityRequirements = {
0: "Brand new",
1: "Newbie",
30: "Jr Member",
60: "Member",
120: "Full Member",
240: "Sr. Member",
480: "Hero Member",
//average activity of freshly ranked-up Legendary
902: "Legendary"
}
//activity at the day of merit system introduction
//assuming that activity is maxed out between today and meritStartDate
let a = Math.max(activity - Math.floor((today - meritStartDate)/(1000*60*60*24)),0)
const k = Object.keys(activityRequirements)
let startingMerit = 1000
// finding the rank at the day of merit system introduction
for (let i = 0;i<k.length;i++){
if (a<k[i]){
startingMerit = startMerits[activityRequirements[k[i-1]]]
break;
}
}
const earnedMerit = rawMerit - startingMerit
return earnedMerit
}
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