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General => General Topics => Topic started by: Flycat on Jul 19 2005, 12:44 PM

Title: Stat and damage questions answered
Post by: Flycat on Jul 19 2005, 12:44 PM
I just stumbled upon a post at Allah that could be useful. Since it links back to the WoW forums I'm going to copy & paste. You never know how long those links will be good.

1. Info on crit and hit chances | 6/8/2005 1:05:10 AM PDT   
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motive has shared some details on the calculations of hit and crit chances:

part 1

The way WoW calculates crit rate is over ALL attacks. Crit rate is not based on hits only. In other words, if you have a 5% crit rate, that 5% chance includes misses.

All crit rate adjusting abilities, items, and talents add the flat % to the base % crit rate. So if I have a 5% base crit rate and then use an item or talent that increases that crit rate (let's use Improved Backstab talent for example - +30% crit), my new crit with backstab is 35%.

Regarding how defense decreases the rate of critical strikes, each point of defense that a target has over the attacker, the attacker loses 0.04% chance to crit. So, for example, if a level 60 Rogue is attacking a level 60 Warrior who has 25 defense, the rogue's crit rate will be decreased by 1%.

part 2

+toHit items subtract from your miss%.

So, ignoring all defensive actions (Block/Parry/Dodge/etc..) if I have 20% crit chance, 20% miss chance, and 60% hit chance and I equip an item that gives me +5% toHit and +5% crit, my stats become 25% crit, 15% miss chance, 60% hit chance.

New hit chance = (Original hit%) + (toHit modifiers) - (crit modifiers)
60% + 5% - 5% = 60%

New crit chance = (Original crit%) + (crit modifiers)
20% + 5% = 25%

New miss chance - (Original miss%) - (toHit modifiers)
20% - 5% = 15% Thundgot
Community Manager, English

1. Agility, Strength, Defense and Attack Power | 4/20/2005 8:22:56 AM PDT   
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We asked the devs for a short explanation of Attack Power and Defense in relation to Agility and Strength. The following should be of some help to those wondering e.g. whether their new +x Attack Power weapon is better than their old +y Strength / +z Agility one. :)

Agility
- Increases Armor Class by 2 for every point of AGI.
- Increases the chance of a critical hit with melee and ranged attacks. The amount of the increase is dependant on both class and level. For most level 60 character classes, approximately 20 points of AGI will increase your critical hit chance by approximately 1%. Rogues require 29 AGI for an additional 1% critical hit chance, and Hunters require 53 AGI for an additional 1% critical hit chance, but both of these classes also gain attack power from agility and the items available to them typically have much higher amounts of AGI.
- Increases the chance to dodge an attack. The amount increased is dependant on both class and level. For most level 60 character classes, approximately 20 points of AGI will increase your chance to dodge by approximately 1%. Rogues only require 14.5 AGI for an additional 1% dodge chance. Hunters require 26.5 AGI for an additional 1% dodge chance, but Hunters typically have a high amount of agility, as well as an Aspect spell that further increases their chance to dodge attacks.

Defense
- Increases the chance of being missed by an attack.
- Increases the chance to dodge, parry, and block.
- Decreases the chance of being affected by a critical hit.
- Decreases the chance of being affected by a "crushing blow". Creatures that are higher level than your character can land crushing blows that deal increased melee damage. The chance of a crushing blow increases as the level difference between you and the opposing creature increases. Players never deal "crushing blows", only creatures.

Attack Power
- Attack power increases your base melee DPS by 1 for every 14 attack power.
- Strength increases your melee attack power by 2, except for rogues and Hunters. Rogues and Hunters gain 1 attack power per point of Strength, and 1 per point of Agility. Thundgot
Community Manager, English

1. An explanation of +damage and +healing items | 4/20/2005 8:18:36 AM PDT   
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There is some confusion about how these effects work and how effective they are, so I wanted to explain what they do.

When an item has the effect "Increases damage and healing done by magical spells and effects by up to 20", the damage dealt or hit points healed by one of your spells will be increased by a fixed amount up to 20. The actual amount that the spell is increased by is not determined randomly, but by which spell you are casting. You are not receiving a random bonus value between 1 and 20 whenever you cast a spell. Some random items, such as those with the property "of Shadow Wrath", indicate that they provide "+X Shadow Spell Damage". The actual amount of the bonus is again determined by the spell being cast. There are a few items that do provide a random bonus, such as Dreamweave Gloves, but their effect notes the randomness by stating that item's bonus as "up to 1 to 19." Once again, the bonus received could be reduced depending on the spell being cast.

Spells with longer casting times such as Fireball and Greater Heal will receive the full bonus listed every time they cast the spell. Spells with instant or short cast times receive a fraction of the bonus listed. As an example of such a spell, Flash Heal (Rank 7) only receives approximately 43% of the item bonus. Talents or other effects that might change the casting time of the spell will not change the bonus; the amount received is a property of the spell being cast.

Most long duration Damage and Heal over time spells have the bonus divided amongst every tick. So Renew, which lasts 15 seconds and heals an amount every 3 seconds, has 20% of the bonus applied each tick. In a similar fashion, channeled spells also have the item bonus divided amongst every tick of the spell's duration.

Lower level spells receive a greatly reduced benefit from these effects.

These effects all stack. So if a Mage is wearing 3 items that provide up to +20 Fire damage, you will have a combined +60 to Fire damage. This means every high level Fireball cast will inflict an extra 60 damage to the target.

These bonuses are also added to the effect of the spell before the 50% bonus from a critical spell hit is applied.

Note that there is currently a bug in the game that affects heals over time such as Renew and Rejuvenation. The +healing items worn by the caster are only providing the appropriate healing bonus if the caster is also the target of the spell. Direct heals such as Greater Heal work fine, and the +Healing bonuses are being appropriately applied. Damage over time spells are also working properly. We're working to fix this bug, but currently I can not provide any kind of ETA on the fix.

Daelo
Game Designer

 As response to a thread in the Mage forum about Frost Bolt not getting the full bonus:


To get the full damage or heal bonus, a direct damage spell or direct heal spell must have a casting time of at least 3.5 seconds. So spells such as Fireball and Greater Heal gain the full effect from +damage or +heal items. Frostbolt has a 3.0 second casting time and an additional secondary frost effect, so it also has a reduced effect from +damage or +heal items. Each Frostbolt gains 81.4% of the listed damage bonus. Casting time reduction talents such as Improved Frostbolt will not effect the amount of bonus applied. The percentage amount of the bonus decreases as the base casting time of a spell decreases.

Here are some other examples of damage or heal bonus coefficients for direct damage and healspells.

Shadow Bolt (3 second casting time): 0.857
Smite (2.5 second casting time): 0.714
Wrath (2.0 second casting time: 0.571
Flash Heal (1.5 second casting time): 0.429
Scorch (1.5 second casting time): 0.429
Fire Blast (instant casting time): 0.429 Thundgot
Community Manager, English