“Game:bit”的版本间的差异

2018年8月24日 (五) 15:50的版本

概述

microbit拓展游戏手柄。拥有丰富的输入按键、双轴游戏摇杆、震动马达、无源蜂鸣器。结合microbit可以有多样的玩法，增加microbit编程的趣味性！

技术参数

• 输入电源：3V（2节7号干电池）
• PCI插槽可插入microbit作主控
• 拥有丰富的按键、双轴摇杆、震动马达、无源蜂鸣器

使用教程

应用示例

无线遥控器

可利用microbit的无线功能，发送game:bit的按键数据。另外一块microbit接收数据后，作出响应。达到无线遥控的功能。可应用在无线遥控手柄的场景上。

• game:bit & micro:bit发送端程序:
  

game:bit无线遥控例程下载

from microbit import *
import radio

def getKeyVal():
    key = 0
    btVal = pin0.read_analog()
    if (btVal < 70):
        key = 1    # button Y
    elif (btVal < 270 and btVal > 130):
        key = 2    # button X
    elif (btVal < 470 and btVal > 330):
        key = 3    # button B
    elif (btVal < 670 and btVal > 530):
        key = 4    # button A
    elif (btVal < 870 and btVal > 730):
        key = 5    # rocker button
    if button_a.is_pressed():
        key = 6    # button start
    if button_b.is_pressed():
        key = 7    # button select
    return key 

radio.config(length=32, queue=3, channel=7, power=0, data_rate=radio.RATE_1MBIT)
radio.on()
while True:
    sendBuff = [0,0,0,0,0,0]
    tmp = pin2.read_analog()    # axix x
    sendBuff[0] = tmp & 0xff
    sendBuff[1] = (tmp >> 8) & 0xff
    tmp = pin1.read_analog()  # axis y
    sendBuff[2] = tmp & 0xff
    sendBuff[3] = (tmp >> 8) & 0xff
    tmp = getKeyVal()           # button val
    sendBuff[4] = tmp & 0xff
    sendBuff[5] = (tmp >> 8) & 0xff
    radio.send_bytes(bytearray(sendBuff))
    #print(sendBuff)
    sleep(50)

• micro:bit接收端程序:
  

from microbit import *
import radio

radio.config(length=32, queue=3, channel=7, power=0, data_rate=radio.RATE_1MBIT)
radio.on()
while True:
    tmp = radio.receive_bytes()
    if (tmp != None):
        x = (tmp[1]<<8)|tmp[0]
        y = (tmp[3]<<8)|tmp[2]
        key = (tmp[5]<<8)|tmp[4]
        #print(x)
        #print(y)
        #print(key)

走迷宫

game:bit手柄和micro:bit的led屏互动的小游戏！通过game:bit的摇杆控制来行走迷宫，趣味十足！

gamebit_maze例程下载

• 以下迷宫图，从黄色点启始，蓝色点为出口。也可通过修改maze[]数组，设计自己的迷宫图！

"""
A simple maze program.  You are the flashing dot and can walk around
using the accelerometer.
"""

import microbit
from microbit import *
import music

d = microbit.display

# the maze data, as binary numbers (outside walls are added automatically)
maze = [
    0b1111111111111111,
    0b0011110101001001,
    0b1000010101011101,
    0b1110110100000000,
    0b1100000111110111,
    0b1001011101000001,
    0b1011010001011101,
    0b1010000100000101,
    0b1000111111101101,
    0b1010110001000111,
    0b1010000100010001,
    0b1010101111010111,
    0b1010101101010001,
    0b1010100100011101,
    0b1000110111011001,
    0b1111111111111011,
]
def getRockerVal():
    Dir = 0
    val1 = pin1.read_analog()
    val2 = pin2.read_analog()
    if val1 > 750:
        Dir = 1 #up
    elif val1 < 250:
        Dir = 2 #down
    elif val2 < 250:
        Dir = 3 #left
    elif val2 > 750:
        Dir = 4 #right
    print(Dir)
    return Dir

def get_maze(x, y):
    if 0 <= x < 16 and 0 <= y < 16:
        return (maze[y] >> (15 - x)) & 1
    else:
        return 1

def draw(x, y, tick):
    img = microbit.Image(5,5)
    for j in range(5):
        for i in range(5):
            img.set_pixel(i, j, get_maze(x + i - 2, y + j - 2)*5)

    # draw the player, flashing
    img.set_pixel(2, 2, (tick & 1)*4+5)
    d.show(img)

def main():
    x = 0
    y = 1
    tick = 0
    while True:
        dir = getRockerVal()
        tick += 1
        if tick == 4:
            # walk around, with collision detection
            tick = 0
            if dir == 4 and get_maze(x + 1, y) == 0:
                x += 1
            elif dir == 3 and get_maze(x - 1, y) == 0:
                x -= 1
            elif dir == 2 and get_maze(x, y + 1) == 0:
                y += 1
            elif dir == 1 and get_maze(x, y - 1) == 0:
                y -= 1
            x = min(15, max(0, x))
            y = min(15, max(0, y))

        # draw the maze
        draw(x, y, tick)
        microbit.sleep(50)
        
        if (x == 15 and y == 3) or (x==13 and y==15):
            music.play(music.NYAN, pin = pin8)
            x = 0
            y = 1
            tick = 0
main()