micropython制作的旋轉立方塊，ssd1306顯示

以前單片機經常看到有顯示旋轉立方塊的，但都是arduino，找了一圈經常沒發現有Mpy的，也可能是我搜的關鍵詞不對，管他呢，自己移植一個，用到的知識有矩陣計算、3d物品在2d平面的投影等，也是一知半解，主要程序移植對了就行，不多說了，上代碼

from math import cos,sin,pi
from machine import SoftI2C,Pin
from ssd1306 import SSD1306_I2C
cube=[[-15,-15,-15],[-15,15,-15],[15,15,-15],[15,-15,-15],[-15,-15,15],[-15,15,15],[15,15,15],[15,-15,15]]
lineid=[1,2,2,3,3,4,4,1,5,6,6,7,7,8,8,5,8,4,7,3,6,2,5,1]
i2c=SoftI2C(scl=Pin(44),sda=Pin(43))
oled=SSD1306_I2C(128, 64,i2c,addr=0x3c)
oled.fill(0)
def matconv(a,matrix):
res=[0,0,0]
for i in range(0,3):
res[i]=matrix[i][0]*a[0]+matrix[i][1]*a[1]+matrix[i][2]*a[2]
for i in range(0,3):
a[i]=res[i]
return a
def rotate(obj,x,y,z):
x=x/pi
y=y/pi
z=z/pi
rz=[[cos(z),-sin(z),0],[sin(z),cos(z),0],[0,0,1]]
ry=[[1,0,0],[0,cos(y),-sin(y)],[0,sin(y),cos(y)]]
rx=[[cos(x),0,sin(x)],[0,1,0],[-sin(x),0,cos(x)]]
matconv(matconv(matconv(obj,rz),ry),rx)
def drawcube(x,y,z):
oled.fill(0)
for i in range(0,8):
rotate(cube[i],x,y,z)
for i in range(0,24,2):
x1=int(64+cube[lineid[i]-1][0])
y1=int(32+cube[lineid[i]-1][1])
x2=int(64+cube[lineid[i+1]-1][0])
y2=int(32+cube[lineid[i+1]-1][1])
oled.line(x1,y1,x2,y2,1)
#print(64+cube[lineid[i]-1][0],32+cube[lineid[i]-1][1],64+cube[lineid[i+1]-1][0],32+cube[lineid[i+1]-1][1])
oled.show()
while 1:
drawcube(0.1,0.2,0.3)

轉起來！