Difference between revisions of "Attack speed"

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Attack cycles per second = 25 / Frames per attack cycle<br>
 
Attack cycles per second = 25 / Frames per attack cycle<br>
  
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Latest revision as of 04:04, 7 December 2021

Diablo II Notation Basic Class Skill Item Ally Quest Area Monster Tale
Attribute Unit Animation Attack Damage Death
Slows Target Freeze target Freeze length Half Freeze Not Frozen Stun length Knockback Walk/run FR/W
Attack speed Weapon IAS Block rate FBR Cast rate FCR Hit recovery FHR
Amazon Assassin Barbarian Druid Necromancer Paladin Sorceress


This gives a comparison of the attack animation parameters of the different classes. Animations are classified by character code, action mode, and type of item equipped. FramesPerDirection is the number of frames in the animation. AnimationSpeed gives the standard playback rate of the animation in 256ths of a frame. StartingFrame denotes which frame the animation starts on, allowing frames to be skipped. ActionFlagFrames specifies which frame in the animation is used to apply the hit action. Attack cycle length and Attack cycles per second refer to the length of the animation when played at standard, unmodified speed.

AnimRate = AnimationSpeed * (100 + percentage speed modifiers) / 100
Frames per attack cycle = ROUNDUP(((FramesPerDirection - 1 - StartingFrame) * 256) / AnimRate)
Attack cycles per second = 25 / Frames per attack cycle

Assassin attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
AI A1 HTH 11 256 0 6 10 2.5
AI A1 1HS 15 256 0 7 14 1.7857
AI A1 2HS 23 256 0 11 22 1.1364
AI A1 1HT 15 256 0 7 14 1.7857
AI A1 2HT 23 256 0 10 22 1.1364
AI A1 STF 19 256 0 9 18 1.3889
AI A1 BOW 16 256 0 7 15 1.6667
AI A1 XBW 21 256 0 10 20 1.25
AI A1 HT1 11 208 0 6 13 1.9231
AI A1 HT2 11 208 0 6 13 1.9231

Amazon attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
AM A1 HTH 13 256 1 8 11 2.2727
AM A1 1HS 16 256 2 10 13 1.9231
AM A1 2HS 20 256 2 12 17 1.4706
AM A1 1HT 15 256 2 9 12 2.0833
AM A1 2HT 18 256 2 11 15 1.6667
AM A1 STF 20 256 2 12 17 1.4706
AM A1 BOW 14 256 0 6 13 1.9231
AM A1 XBW 20 256 0 9 19 1.3158

Barbarian attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
BA A1 HTH 12 256 0 6 11 2.2727
BA A1 1HS 16 256 0 7 15 1.6667
BA A1 2HS 18 256 0 8 17 1.4706
BA A1 1HT 16 256 0 7 15 1.6667
BA A1 2HT 19 256 0 9 18 1.3889
BA A1 STF 19 256 0 9 18 1.3889
BA A1 BOW 15 256 0 7 14 1.7857
BA A1 XBW 20 256 0 10 19 1.3158
BA A1 1JS 16 256 0 7 15 1.6667
BA A1 1JT 16 256 0 7 15 1.6667
BA A1 1SS 16 256 0 7 15 1.6667
BA A1 1ST 16 256 0 7 15 1.6667

Druid attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
DZ A1 HTH 16 256 0 8 15 1.6667
DZ A1 1HS 19 256 0 9 18 1.3889
DZ A1 2HS 21 256 0 10 20 1.2500
DZ A1 1HT 19 256 0 8 18 1.3889
DZ A1 2HT 23 256 0 9 22 1.1364
DZ A1 STF 17 256 0 9 16 1.5625
DZ A1 BOW 16 256 0 8 15 1.6667
DZ A1 XBW 20 256 0 10 19 1.3158

Necromancer attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
NE A1 HTH 15 256 0 8 14 1.7857
NE A1 1HS 19 256 0 9 18 1.3889
NE A1 2HS 23 256 0 11 22 1.1364
NE A1 1HT 19 256 0 9 18 1.3889
NE A1 2HT 24 256 0 10 23 1.0870
NE A1 STF 20 256 0 11 19 1.3158
NE A1 BOW 18 256 0 9 17 1.4706
NE A1 XBW 20 256 0 11 19 1.3158

Paladin attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
PA A1 HTH 14 256 0 7 13 1.9231
PA A1 1HS 15 256 0 7 14 1.7857
PA A1 2HS 18 256 0 8 17 1.4706
PA A1 1HT 17 256 0 8 16 1.5625
PA A1 2HT 20 256 0 8 19 1.3158
PA A1 STF 18 256 0 9 17 1.4706
PA A1 BOW 16 256 0 8 15 1.6667
PA A1 XBW 20 256 0 10 19 1.3158

Sorceress attack speed

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
SO A1 HTH 16 256 1 9 14 1.7867
SO A1 1HS 20 256 2 12 17 1.4706
SO A1 2HS 24 256 2 14 21 1.1905
SO A1 1HT 19 256 2 11 16 1.5625
SO A1 2HT 23 256 2 13 20 1.2500
SO A1 STF 18 256 2 11 15 1.6667
SO A1 BOW 17 256 0 9 16 1.5625
SO A1 XBW 20 256 0 11 19 1.3158

Barrel kicking

Code Mode Wclass FramesPerDirection AnimationSpeed StartingFrame ActionFlagFrames Attack cycle length Attack cycles per second
AI KK STF 13 256 0 4 12 2.0833
AM KK 2HT 12 256 0 5 11 2.2727
BA KK XBW 12 256 0 4 11 2.2727
DZ KK 2HT 12 256 0 5 11 2.2727
NE KK STF 12 256 0 6 11 2.2727
PA KK XBW 12 256 0 5 11 2.2727
SO KK 1HS 12 256 0 6 11 2.2727

Effective Increased Attack Speed

EIAS refers to a percentage modifier to the attack animation playback rate. Increased Attack Speed stats from equipment and items are added up and transformed into an quantity of EIAS.


EIAS = floor((120 * IAS) / (120 + IAS))
IAS = ceiling(120 * EIAS / (120 - EIAS))

Necessary EIAS = Target EIAS - Skill EIAS + WSM

Some attack speed tables indicate quantities of EIAS that are needed to reach certain speed thresholds, given the assumptions listed with the table. From your target EIAS, subtract any quantities of EIAS from skills. This can come in the form of Skills that increase your attack speed such as Burst of Speed and Fanaticism and curses that slow your attack speed like Decrepify. Attack speed increasers have a positive EIAS while speed decreasers have a negative EIAS.

From that amount, add your weapon speed modifier (WSM).
-If you are single wielding, your weapon speed modifier is your weapon's WSM.
-If you are dual wielding and the weapon in your left inventory slot is your main weapon, your weapon speed modifier is (LeftWSM + RightWSM) / 2.
-If you are dual wielding and the weapon in your right inventory slot is your main weapon, your weapon speed modifier is (LeftWSM + RightWSM) / 2 - LeftWSM + RightWSM.

The resulting value is your Necessary EIAS. This is the amount of speed increase you need to make up with the IAS from your equipment. If its value is negative, you don't need any additional IAS from your equipment. If it is positive, look up this value in the table below to get the amount of IAS you'll need to have in order to reach the Target EIAS.


EIAS IAS
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 13
12 14
13 15
14 16
15 18
16 19
17 20
18 22
19 23
20 24
EIAS IAS
21 26
22 27
23 29
24 30
25 32
26 34
27 35
28 37
29 39
30 40
31 42
32 44
33 46
34 48
35 50
36 52
37 54
38 56
39 58
40 60
EIAS IAS
41 63
42 65
43 68
44 70
45 72
46 75
47 78
48 80
49 83
50 86
51 89
52 92
53 95
54 99
55 102
56 105
57 109
58 113
59 117
60 120
EIAS IAS
61 125
62 129
63 133
64 138
65 142
66 147
67 152
68 157
69 163
70 168
71 174
72 180
73 187
74 194
75 200
76 208
77 215
78 223
79 232
80 240
EIAS IAS
81 250
82 259
83 270
84 280
85 292
86 304
87 317
88 330
89 345
90 360
91 377
92 395
93 414
94 434
95 456
96 480
97 507
98 535
99 566
100 600
EIAS IAS
101 638
102 680
103 728
104 780
105 840
106 909
107 988
108 1,080
109 1,190
110 1,320
111 1,480
112 1,680
113 1,938
114 2,280
115 2,760
116 3,480
117 4,680
118 7,080
119 14,280
120 ∞
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