脑

In VEX IQ (2nd gen) C++, the Brain is represented by the brain class. You create (or use the default project-provided) Brain object and then access Brain features through its member objects.

派生类

The brain class serves as a base class for the following derived classes:

• Screen - This class provides access to the Brain’s built-in color touchscreen, allowing programs to display text, graphics, and receive touch input.

• Timer - This class provides high-resolution timing utilities for measuring elapsed time and controlling time-based behavior in programs.

• Battery - This class allows programs to monitor the Brain’s battery status, including voltage, current, capacity, and temperature.

• Button - This class provides access to the Brain’s buttons.

• SDcard - This class enables reading from and writing to the Brain’s SD card for file storage, data logging, and loading external resources.

类构造函数

brain();

参数

The brain constructor uses no parameters.

笔记

• Only one brain object should be created in a project.

例子

// Create the Brain
brain Brain = brain();

成员功能

The brain class includes the following member functions:

• playSound - Plays one of the Brain’s built-in sound effects.

• playNote - Play a musical note from the Brain.

Before calling any brain member functions, a brain instance must be created, as shown below:

// Create the Brain
brain Brain = brain();

播放声音

播放大脑内置的声音之一。

Available Functions

void playSound(
    soundtype sound );

Parameters

参数	类型	描述
sound	soundtype	大脑要播放的指定声音。

声音名称	播放声音
alarm	播放
alarm2	播放
doorClose	播放
fillup	播放
headlightsOff	播放
headlightsOn	播放
powerDown	播放
ratchet	播放
ratchet2	播放
siren	播放
siren2	播放
tada	播放
tollBooth	播放
wrench	播放
wrongWay	播放
wrongWaySlow	播放

Return Values

此函数不返回值。

播放音符

从大脑中发出一个音符。

Available Functions

void playNote(
    soundtype sound );

1 - 演奏一个音符。

void playNote(
    int32_t octave
    int32_t note );

2 - 演奏特定时长的音符。

void playNote(
    int32_t octave,
    int32_t note,
    int32_t duration );

Parameters

参数	类型	描述
octave	int32_t	The integer that represents the octave the note is played in: 1 to 3 - low octave 4 to 7 - high octave
note	int32_t	The note to play: 0 - C 1 - D 2 - E 3 - F 4 - G 5 - A 6 - B
duration	int32_t	可选。音符的持续时间（以毫秒为单位），最长为 500 毫秒。如果未提供持续时间，则默认持续时间为 500 毫秒。

Return Values

此函数不返回值。