Events#
Introduction#
The Events blocks in VEXcode IQ (1st gen) allow for event-driven coding, enabling different parts of a project to run in response to triggers such as project start, received events, or user interactions. Below is a list of available blocks:
when started – Executes the attached stack of blocks when the project starts.
when I receive event – Runs the attached stack when a specific event is broadcast.
broadcast event – Triggers an event without pausing execution.
broadcast event and wait – Triggers an event and pauses execution until the event’s tasks complete.
when started#
The when started block runs its stack when the project begins. You can have multiple when started blocks to run multiple stacks of blocks at once.
当开始
Parameters |
Description |
|---|---|
This block has no parameters. |
Example
当开始
[Turn around at the start of the project.]
归位至 [180] 度 ▶
when I receive event#
The when I receive event block starts a stack when a matching event is broadcast. You can have multiple when I receive event blocks to run multiple stacks of blocks at once.
当我收到 [my_event v]
Parameters |
Description |
|---|---|
event |
The event to be triggered. Users can select an existing event, create a new one, rename the selected event, or delete it. |
Example
当开始
[Display a message and turn at the same time.]
等到 <Brain [Check v] 键按下了？>
广播 [turn v]
当我收到 [turn v]
在 [Brain v] ▶上打印 [Received!]
[右 v] 转 [90] 度 ▶
broadcast event#
The broadcast event block triggers any matching when I receive event hat block. It does not pause the execution of the stack and continues running the next block immediately.
广播 [message1 v]
Parameters |
Description |
|---|---|
event |
The event to trigger. Users can select an existing event, create a new one, rename the selected event, or delete it. |
Example
当开始
[Play a sound when a button is pressed while turning.]
永久循环
如果 <Brain [Left v] 键按下了？> 那么
广播 [button_press v]
否则
[右 v] 转
当我收到 [button_press v]
播放声音 [闹钟 v]
broadcast event and wait#
The broadcast event and wait block triggers an event, then pauses execution of the current stack until all triggered when I receive event block stacks have completed.
广播 [message1 v] 并等待
Parameters |
Description |
|---|---|
event |
The event to trigger. Users can select an existing event, create a new one, rename the selected event, or delete it. |
Example
当开始
[Move after the Brain's Check button is pressed.]
等到 <Brain [Check v] 键按下了？>
广播 [forward_and_turn v] 并等待
在 [Brain v] ▶上打印 [Movement done.]
当我收到 [forward_and_turn v]
驱动 [向前 v] [100] [毫米 v] ▶
[右 v] 转 [90] 度 ▶