revert to LEVEL_GRAPH to mimic osu behaviour

app/constants/level.py

@@ -2,33 +2,128 @@
 
 import math
 
+LEVEL_GRAPH = [
+    0,
+    30000,
+    130000,
+    340000,
+    700000,
+    1250000,
+    2030000,
+    3080000,
+    4440000,
+    6150000,
+    8250000,
+    10780000,
+    13780000,
+    17290000,
+    21350000,
+    26000000,
+    31280000,
+    37230000,
+    43890000,
+    51300000,
+    59500000,
+    68530000,
+    78430000,
+    89240000,
+    101000000,
+    113750000,
+    127530000,
+    142380000,
+    158340000,
+    175450000,
+    193750000,
+    213280000,
+    234080000,
+    256190000,
+    279650000,
+    304500000,
+    330780000,
+    358530000,
+    387790000,
+    418600000,
+    451000000,
+    485030000,
+    520730000,
+    558140000,
+    597300000,
+    638250000,
+    681030000,
+    725680000,
+    772240000,
+    820750000,
+    871250000,
+    923780000,
+    978380000,
+    1035090000,
+    1093950000,
+    1155000000,
+    1218280000,
+    1283830000,
+    1351690001,
+    1421900001,
+    1494500002,
+    1569530004,
+    1647030007,
+    1727040013,
+    1809600024,
+    1894750043,
+    1982530077,
+    2072980138,
+    2166140248,
+    2262050446,
+    2360750803,
+    2462281446,
+    2566682603,
+    2673994685,
+    2784258433,
+    2897515180,
+    3013807324,
+    3133179183,
+    3255678529,
+    3381359353,
+    3510286835,
+    3642546304,
+    3778259346,
+    3917612824,
+    4060911082,
+    4208669948,
+    4361785907,
+    4521840633,
+    4691649139,
+    4876246450,
+    5084663609,
+    5333124496,
+    5650800094,
+    6090166168,
+    6745647103,
+    7787174786,
+    9520594614,
+    12496396305,
+    17705429349,
+    26931190829,
+]
+
 
-# NOTE: https://osu.ppy.sh/wiki/en/Gameplay/Score/Total_score
 def get_required_score_for_level(level: int) -> int:
-    if level <= 1:
+    if level <= 0:
         return 0
-
     if level <= 100:
-        return math.ceil(
-            (5000 / 3) * (4 * level**3 - 3 * level**2 - level)
-            + 1.25 * 1.8 ** (level - 60),
-        )
-    else:
-        return math.ceil(26931190827 + 99999999999 * (level - 100))
+        return LEVEL_GRAPH[level - 1]
+    return LEVEL_GRAPH[99] + 100000000000 * int(level - 100)
 
 
 def get_level(score: int) -> int:
     if score <= 0:
         return 1
 
-    if score >= get_required_score_for_level(99):
-        return 100 + int((score - get_required_score_for_level(99)) / 100000000000)
-
-    levels = [get_required_score_for_level(level) for level in range(1, 101)]
+    if score >= LEVEL_GRAPH[99]:
+        return 100 + int((score - LEVEL_GRAPH[99]) / 100000000000)
 
-    for level, level_score in enumerate(levels, start=1):
-        if score <= level_score:
-            return level
+    for idx, v in enumerate(LEVEL_GRAPH, start=0):
+        if v > score:
+            return idx
 
     return 1