User:Arcorann/DDR Scoring: Difference between revisions

User:Arcorann/DDR Scoring (view source)

Revision as of 04:16, 5 May 2023

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Arcorann

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 This is not intended to be article quality at the moment.
+Also putting grading on this page.
 == Arcade mixes ==
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 where
 *J = 2 if Marvelous/Perfect/OK, 1 if Great, 0 otherwise
+== Grading systems ==
+=== 1st ===
+Derived by me, not yet checked on AC.
+Possible grades are S, A, B, C, D.
+* If (bad + miss) == 0 and (max combo >= 100 or perfects >= 0.75 * total steps) then S.
+* Otherwise:
+** Set provisional grade to A if (max combo >= 50 or perfects >= 0.5 * total steps) and B otherwise
+** Deduct one grade if (bad + miss) > 0.05 * total steps
+** Deduct another grade if (bad + miss) > 0.15 * total steps.
+=== 2nd ===
+Found on AIJ.
+Possible grades are SS, S, A, B, C, D.
+Let S be the total number of steps and C be the max combo. Define the following thresholds:
+* C_1 = min( 0.9 * S, 100)
+* C_2 = min( 0.5 * S, 60)
+* C_3 = min( 0.5 * S, 20)
+Let:
+* GP = (C == S) + (C >= C_1) + (C >= C_2) + (C >= C_3)
+** i.e. if C == S then GP = 4, else if C >= C_1, GP = 3, etc.
+* MT = 4 - GP.
+Then:
+* Provisional grade is SS if GP == 4, S if GP == 3, A if GP == 2, B if GP == 1, C if GP == 0.
+* Deduct one grade if either (misses > MT) or (perfects < greats).
+=== 3rd ===
+Possible grades are SSS, SS, S, A, B, C, D, E.
+Assign DP per judgement:
+* 2 for Perfect
+* 1 for Great
+* 0 for Good
+* -4 for Boo
+* -5 for Miss
+Then:
+* If failed (empty life bar at some point), assign E.
+* If all Perfects, assign SSS.
+* Else, if all Great or Perfects, assign SS if (perfects >= 0.8 * total steps) and S otherwise.
+* Else, check DP / Max DP:
+** If >= 0.8, assign A
+** If >= 0.64, assign B
+** If >= 0.5, assign C
+** Else, assign D.
+=== 4th ===
+Possible grades are AA, A, B, C, D.
+Assign DP per judgement as in 3rd.
+Then:
+* If failed (empty life bar at some point), assign D.
+* If all Perfects, assign AA.
+* Else, if all Great or Perfects, assign A.
+* Else, check DP / Max DP:
+** If >= 0.64, assign B
+** Else, assign C.
+=== 5th ===
+Possible grades are AAA, AA, A, B, C, D, E. Very similar to 3rd.
+Assign DP per judgement as in 3rd.
+Then:
+* If failed (empty life bar at some point), assign E.
+* If all Perfects, assign AAA.
+* Else, if all Great or Perfects, assign AA.
+* Else, check DP / Max DP:
+** If >= 0.8, assign A
+** If >= 0.64, assign B
+** If >= 0.5, assign C
+** Else, assign D.
+Note that A, B, C and D are the same as 3rd's A, B, C and D.
+=== MAX to Extreme ===
+Possible grades are AAA, AA, A, B, C, D, E.
+Assign DP per judgement:
+* 2 for Perfect
+* 1 for Great
+* 0 for Good
+* -4 for Boo
+* -8 for Miss
+* 6 for OK
+* 0 for NG
+Then:
+* If failed (empty life bar at some point), assign E.
+* Else, check DP / Max DP:
+** If DP = max DP, assign AAA
+** If >= 0.93, assign AA
+** If >= 0.80, assign A
+** If >= 0.65, assign B
+** If >= 0.45, assign C
+** Else, assign D.