fill waves

waves.py

@@ -16,6 +16,7 @@ def main():
     ctx.scale(WIDTH, HEIGHT)  # Normalizing the canvas
 
     wave_height = 1/WAVES
+    lastpoints = [(x/1000, 0) for x in range(1000)]
     
     for num in range(WAVES):
         r, g, b = random_color()
@@ -25,13 +26,20 @@ def main():
             y = math.sin(x*50) * 0.1
             points.append((x, ( (y/4) + ((0.5+num)*wave_height))))
             x += 0.001
-        print(points)
+        # draw waves
         ctx.move_to(*points[0])
         for p in points[1:]:
             ctx.line_to(*p)
         ctx.set_line_width(0.002)
         ctx.set_source_rgb(r, g, b)
         ctx.stroke()
+        # fill area above
+        for pos in range(len(points)):
+            ctx.move_to(*points[pos])
+            ctx.line_to(*lastpoints[pos])
+            ctx.stroke()
+        lastpoints = points
+
 
     surface.write_to_png("out/waves.png")  # Output to PNG