Live coding example in examples/12-experimental/

Author: Tom De Smedt

examples/12-experimental/04-live1.py

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+# Add the upper directory (where the nodebox module is) to the search path.
+import os, sys; sys.path.insert(0, os.path.join("..", ".."))
+import warnings
+
+from nodebox.graphics import *
+
+# Live coding example.
+# The actual drawing code is in 04-live2.py.
+# This script starts the canvas and executes the commands from 04-live2.py.
+# You can then edit and save the code there,
+# changes will be reflected automatically while the canvas keeps running.
+
+SCRIPT = "04-live2.py"
+source = open(SCRIPT).read()
+modified = os.path.getmtime(SCRIPT)
+
+def draw(canvas):
+    global source
+    global modified
+    try:
+        exec(source)
+    except Exception, e:
+        warnings.warn(str(e), Warning)
+    if os.path.getmtime(SCRIPT) > modified:
+        source = open(SCRIPT).read()
+        modified = os.path.getmtime(SCRIPT)
+    
+canvas.size = 500, 500
+canvas.fps = 30
+canvas.run(draw)

examples/12-experimental/04-live2.py

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+# Live coding example.
+# See 04-live1.py.
+# The commands below are read and executed in a canvas there.
+# If you edit and save this file, changes are automatically reflected,
+# while the canvas started in 04-live1.py keeps on running.
+
+#canvas.clear()
+for i in range(10):
+    x = random(canvas.width)
+    y = random(canvas.height)
+    r = random(20) + 50
+    fill(random(), 0.0, random(0.25), random(0.25))
+    stroke(0, 0.2)
+    ellipse(x, y, random, r)