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https://gitee.com/Lyon1998/pikapython.git
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138 lines
2.7 KiB
Python
138 lines
2.7 KiB
Python
from PikaObj import *
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import PikaStdLib
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import machine
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# hardware init
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lcd = machine.LCD()
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lcd.init()
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lcd.clear('white')
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key = machine.KEY()
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key.init()
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time = machine.Time()
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x_max = 120
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y_max = 150
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# snake init
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s = machine.Point()
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w = 9
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h = 9
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s.x = 50
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s.y = 10
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len = 0
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while len < 3:
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b = s
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i = 0
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while i < len:
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b = b.next
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i = i + 1
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b.next = machine.Point()
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b.next.x = b.x - 10
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b.next.y = b.y
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b.next.prev = b
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len = len + 1
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# ring link
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b.next = s
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s.prev = b
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i = 0
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b = s
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while i < len:
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lcd.fill(b.x, b.y, w, h, 'blue')
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b = b.next
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i = i + 1
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print('snake lengh')
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print(len)
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# fruit init
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f = machine.Point()
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f.x = 30
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f.y = 20
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lcd.fill(f.x, f.y, w, h, 'green')
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# memory check
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mem = PikaStdLib.MemChecker()
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print('mem used max:')
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mem.max()
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# main loop
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d = 0
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isUpdate = 1
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isEat = 0
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while True:
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time.sleep_ms(50)
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if isUpdate:
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# isUpdate = 0
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# check eat fruit
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if f.x == s.x and f.y == s.y:
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# have eat fruit
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isEat = 1
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f.x = f.x + 30
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if f.x > x_max:
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f.x = f.x - x_max
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f.y = f.y + 30
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if f.y > y_max:
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f.y = f.y - y_max
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lcd.fill(f.x, f.y, w, h, 'green')
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# move snake by the direction
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if d == 0:
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x_new = s.x + 10
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y_new = s.y
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if x_new > x_max:
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x_new = 0
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elif d == 1:
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x_new = s.x
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y_new = s.y - 10
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if y_new < 0:
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y_new = y_max
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elif d == 2:
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x_new = s.x
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y_new = s.y + 10
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if y_new > y_max:
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y_new = 0
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elif d == 3:
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x_new = s.x - 10
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y_new = s.y
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if x_new < 0:
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x_new = x_max
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if isEat:
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isEat = 0
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b_new = machine.Point()
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b_new.x = x_new
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b_new.y = y_new
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b_new.prev = s.prev
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b_new.next = s
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s.prev.next = b_new
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s.prev = b_new
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s = b_new
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len = len + 1
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print('snake lengh')
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print(len)
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print('mem used max:')
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mem.max()
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# drow the snake and fruit
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# clear last body
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lcd.fill(s.prev.x, s.prev.y, w, h, 'white')
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# new body
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s.prev.x = x_new
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s.prev.y = y_new
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# head is last body
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s = s.prev
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lcd.fill(s.x, s.y, w, h, 'blue')
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b = s
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i = 0
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# scan key
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key_val = key.get()
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if key_val == 0:
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d = 0
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isUpdate = 1
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elif key_val == 1:
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d = 1
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isUpdate = 1
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elif key_val == 2:
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d = 2
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isUpdate = 1
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elif key_val == 3:
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d = 3
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isUpdate = 1
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