Refactor bridge, fish show, and sunrise show code

1 files changed, 39 insertions, 0 deletions

diff --git a/show.py b/show.py
new file mode 100644
index 0000000..f8544c9
--- /dev/null
+++ b/show.py
@@ -0,0 +1,39 @@
+from __future__ import division, print_function
+import time
+
+class Clock(object):
+    def __init__(self):
+        self.last_tick = time.time()
+
+    def tick(self, framerate):
+        sec_per_frame = 1.0 / framerate
+        diff = time.time() - self.last_tick
+        while diff < sec_per_frame:
+            diff = time.time() - self.last_tick
+
+        if diff > (1.05 * sec_per_frame):
+            print("WARN: tick is not being called fast enough\n",
+                  "target {}, actual {}".format(sec_per_frame, diff))
+        self.last_tick = time.time()
+
+
+class Show(object):
+    def __init__(self, bridge):
+        self.bridge = bridge
+        self.clock = Clock()
+        self.running = True
+        self.init()
+
+    def run(self, framerate=40):
+        while self.running:
+            self.update()
+            self.bridge.update()
+            self.clock.tick(framerate)
+
+    def init(self):
+        """Override me"""
+        raise NotImplementedError
+
+    def update(self):
+        """Override me"""
+        raise NotImplementedError