[M] Move scoring to separate file

AquaNet/src/libs/scoring.ts

@@ -0,0 +1,55 @@
+export type GameName = 'mai2' | 'chu3' | 'ongeki'
+
+const multTable = {
+  'mai2': [
+    [ 100.5, 22.4, 'SSSp' ],
+    [ 100.0, 21.6, 'SSS' ],
+    [ 99.5, 21.1, 'SSp' ],
+    [ 99, 20.8, 'SS' ],
+    [ 98, 20.3, 'Sp' ],
+    [ 97, 20, 'S' ],
+    [ 94, 16.8, 'AAA' ],
+    [ 90, 15.2, 'AA' ],
+    [ 80, 13.6, 'A' ]
+  ],
+
+  // TODO: Fill in multipliers for Chunithm and Ongeki
+  'chu3': [
+    [ 100.75, 0, 'SSS' ],
+    [ 100.0, 0, 'SS' ],
+    [ 97.5, 0, 'S' ],
+    [ 95.0, 0, 'AAA' ],
+    [ 92.5, 0, 'AA' ],
+    [ 90.0, 0, 'A' ],
+    [ 80.0, 0, 'BBB' ],
+    [ 70.0, 0, 'BB' ],
+    [ 60.0, 0, 'B' ],
+    [ 50.0, 0, 'C' ],
+    [ 0.0, 0, 'D' ]
+  ],
+
+  'ongeki': [
+    [ 100.75, 0, 'SSS+' ],
+    [ 100.0, 0, 'SSS' ],
+    [ 99.0, 0, 'SS' ],
+    [ 97.0, 0, 'S' ],
+    [ 94.0, 0, 'AAA' ],
+    [ 90.0, 0, 'AA' ],
+    [ 85.0, 0, 'A' ],
+    [ 80.0, 0, 'BBB' ],
+    [ 75.0, 0, 'BB' ],
+    [ 70.0, 0, 'B' ],
+    [ 50.0, 0, 'C' ],
+    [ 0.0, 0, 'D' ]
+  ]
+}
+
+
+export function getMult(achievement: number, game: GameName) {
+  achievement /= 10000
+  const mt = multTable[game]
+  for (let i = 0; i < mt.length; i++) {
+    if (achievement >= (mt[i][0] as number)) return mt[i]
+  }
+  return [ 0, 0, 0 ]
+}