demo improvements

demo/demo_utils.py

@@ -0,0 +1,32 @@
+from csdl import init, InitFlags
+from csdl.video import Window
+from csdl.events import EventType, poll_event, WindowEventType
+import time
+
+def simple_timed_loop(draw_func):
+    init(InitFlags.EVERYTHING)
+    window = Window('timed sdloppy demo', 100, 100, 512, 512)
+    running = True
+
+    start_time = time.time()
+    frames = 0
+
+    while running:
+        frames += 1
+        if frames == 1000:
+            print('FPS: {0:.2f}'.format(frames/(time.time()-start_time)))
+            frames = 0
+            start_time = time.time()
+
+        # event loop
+        while True:
+            event = poll_event()
+            if not event:
+                break
+            elif event.type == EventType.QUIT:
+                running = False
+            elif event.type == EventType.WINDOWEVENT:
+                if event.window.event == WindowEventType.CLOSE:
+                    running = False
+
+        draw_func(window)

demo/random_rectangles.py

@@ -1,21 +1,8 @@
-from csdl import init, INIT
-from csdl.video import Window, Rect
-from csdl.events import EventType, poll_event
 import random
-import time
+from csdl.video import Rect
-
+from demo_utils import simple_timed_loop
-def main():
-    init(INIT.EVERYTHING)
-    window = Window('test', 100, 100, 512, 512, 0)
-
-    while True:
-        while True:
-            event = poll_event()
-            if not event:
-                break
-            else:
-                print repr(EventType.from_int(event.type))
 
+def draw(window):
     window.renderer.set_draw_color(0,0,0,255)
     window.renderer.clear()
     window.renderer.set_draw_color(255,0,0,255)
@@ -31,5 +18,6 @@ def main():
                  random.randint(0,300), random.randint(0, 300))
         window.renderer.fill_rects([r,s,t])
     window.renderer.present()
-        time.sleep(.001)
+
-main()
+if __name__ == '__main__':
+    simple_timed_loop(draw)

demo/random_triangles.py

@@ -1,14 +1,8 @@
-from csdl import init, INIT
+#!/usr/bin/env python
-from csdl.video import Window
+from demo_utils import simple_timed_loop
-
 import random
-import time
 
-def main():
+def draw(window):
-    init(INIT.EVERYTHING)
-    window = Window('test', 100, 100, 512, 512, 0)
-
-    while True:
     window.renderer.set_draw_color(0,0,0,255)
     window.renderer.clear()
     window.renderer.set_draw_color(255,0,0,255)
@@ -21,5 +15,6 @@ def main():
         p3 = (random.randint(0,512), random.randint(0, 512))
         window.renderer.draw_lines([p1, p2, p3, p1])
     window.renderer.present()
-        time.sleep(.001)
+
-main()
+if __name__ == '__main__':
+    simple_timed_loop(draw)