examples: Update reaction game example to use display.animate.

examples/reaction_game.py

@@ -0,0 +1,70 @@
+from microbit import *
+import random
+
+clockwise_images = [
+    Image.ARROW_W,
+    Image.ARROW_NW,
+    Image.ARROW_N,
+    Image.ARROW_NE,
+    Image.ARROW_E,
+    Image.ARROW_SE,
+    Image.ARROW_S,
+    Image.ARROW_SW,
+    Image.ARROW_W,
+    Image.ARROW_NW,
+    Image.ARROW_N,
+    Image.ARROW_NE,
+    Image.ARROW_E,
+]
+
+anti_clockwise_images = reversed(clockwise_images)
+
+
+def countDown(x):
+    while x > 0:
+        msg = "%d" % (x)
+        display.show(msg)
+        sleep(500)
+        x = x - 1
+    display.clear()
+
+
+def spin(direction):
+    if direction is "b":
+        display.show(clockwise_images, 100)
+    if direction is "a":
+        display.show(anti_clockwise_images, 100)
+    flash(direction)
+
+
+def flash(direction):
+    number_of_flashes = 10
+    direction_image = Image.ARROW_N
+    if direction is "b":
+        direction_image = Image.ARROW_E
+    if direction is "a":
+        direction_image = Image.ARROW_W
+    while number_of_flashes > 0:
+        display.show(direction_image)
+        sleep(200)
+        display.clear()
+        sleep(200)
+        number_of_flashes = number_of_flashes - 1
+
+
+countDown(5)
+howLong = random.randrange(7000)
+display.show(Image.SAD)
+sleep(howLong)
+
+while (not button_a.is_pressed()) and (not button_b.is_pressed()):
+    display.show(Image.HAPPY)
+    sleep(1)
+
+if button_a.is_pressed():
+    spin("a")
+else:
+    spin("b")
+
+sleep(1000)
+display.clear()