[MC-124662] Attribute Modifier generic.attackSpeed isn't working correctly

The Attribute generic.attackSpeed will not work. If I e.g. give myself one with an Amount of 1.6 (which should be exactly as fast as a default sword), you can spam-click it, the value does not seem to change anything.

Here are the commands used:

1.12.2

/give @s minecraft:diamond_sword 1 0 {AttributeModifiers:[{AttributeName:"generic.attackSpeed",Name:"generic.attackSpeed",Amount:1.6,Operation:0,UUIDLeast:886938,UUIDMost:310468,Slot:"mainhand"}]}

1.13+

/give @s minecraft:diamond_sword{AttributeModifiers:[{AttributeName:"generic.attackSpeed",Name:"generic.attackSpeed",Amount:1.6,Operation:0,UUIDLeast:886938,UUIDMost:310468,Slot:"mainhand"}]}

Comments 1

marcono1234 2018-02-01T21:02:35Z

This works as intended but the tooltip information is not really helpful in general, see MC-113552.

The player has a base attack speed of 4.0 and the attack speed modifier of a sword is actually -2.4000000953674316, therefore the following sword has the same attack speed like a default sword:

1.13+

/give @s minecraft:diamond_sword{AttributeModifiers:[{AttributeName:"generic.attackSpeed",Name:"generic.attackSpeed",Amount:-2.4000000953674316,Operation:0,UUIDLeast:886938,UUIDMost:310468,Slot:"mainhand"}]}