Merge remote-tracking branch 'upstream/master' into dict_feats

1 files changed, 43 insertions, 0 deletions

diff --git a/examples/conwaylife.py b/examples/conwaylife.py
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+++ b/examples/conwaylife.py
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+# do 1 iteration of Conway's Game of Life
+def conway_step():
+    for x in range(128):        # loop over x coordinates
+        for y in range(32):     # loop over y coordinates
+            # count number of neigbours
+            num_neighbours = (lcd.get(x - 1, y - 1) +
+                lcd.get(x, y - 1) +
+                lcd.get(x + 1, y - 1) +
+                lcd.get(x - 1, y) +
+                lcd.get(x + 1, y) +
+                lcd.get(x + 1, y + 1) +
+                lcd.get(x, y + 1) +
+                lcd.get(x - 1, y + 1))
+
+            # check if the centre cell is alive or not
+            self = lcd.get(x, y)
+
+            # apply the rules of life
+            if self and not (2 <= num_neighbours <= 3):
+                lcd.reset(x, y) # not enough, or too many neighbours: cell dies
+            elif not self and num_neighbours == 3:
+                lcd.set(x, y)   # exactly 3 neigbours around an empty cell: cell is born
+
+# randomise the start
+def conway_rand():
+    lcd.clear()                 # clear the LCD
+    for x in range(128):        # loop over x coordinates
+        for y in range(32):     # loop over y coordinates
+            if pyb.rand() & 1:  # get a 1-bit random number
+                lcd.set(x, y)   # set the pixel randomly
+
+# loop for a certain number of frames, doing iterations of Conway's Game of Life
+def conway_go(num_frames):
+    for i in range(num_frames):
+        conway_step()           # do 1 iteration
+        lcd.show()              # update the LCD
+
+# PC testing
+import lcd
+import pyb
+lcd = lcd.LCD(128, 32)
+conway_rand()
+conway_go(100)