function/follow

The FOLLOW function provides the ability to delay the reset of the when block (True -> False transition). The function block keeps the True state of a when block for a specified duration, after the condition of a when block is no longer satisfied.

Parameters:

Field	Type	Required	Description
blockOptions.function.follow	object	–	Settings of a FOLLOW function.
blockOptions.function.follow.delayReset	int	+	For how long the reset of the when block will be delayed. Value should be positive. Specified in seconds.

If all function’s children become True, the operator becomes True instantly.
If a child event becomes False and the previous state of the FOLLOW function was True, the operator schedules a delayed reset. During the delay the operator stays in True state.
If the deferred reset was scheduled and during the delay all function’s children become True again, then the delayed reset is discarded.
NOTE: The FOLLOW function state is not saved between the scene service restarts, so, the function operator should not be used to handle large periods of time like hours and days. It is only intended to handle periods in seconds.

This feature is available since advanced_scenes/1.27.

Example:

				
					{
   "blockOptions":{
        "method":{
            "args":{
                "blocks":"blocks"
            },
            "name":"function"
        },
        "function": {
            "follow":{
                "delayReset": 3
            }
        }
    },
    "blockType":"when",
    "fields":[
        {
            "name":"blocks",
            "type":"blocks",
            "value": [
                __WHEN_BLOCK__, ..., __WHEN_BLOCK__
            ]
        }
    ]
}

Here, the __WHEN_BLOCK__ stands for any valid when block, like a final event or a logical operator.