first commit

bezier.py

@@ -0,0 +1,50 @@
+class Bezier:
+    def __init__(self, *args, **kwargs):
+        if len(args) == 1:
+            inp = list(args)
+            self.x = [i[0] for i in inp]
+            self.y = [i[1] for i in inp]
+        if len(args) == 2:
+            self.x = args[0]
+            self.y = args[1]
+        else:
+            #TODO find proper exception
+            raise RuntimeError('')
+        if 'step' in kwargs:
+            self.step = kwargs[step]
+        else:
+            self.step = 1e-3
+    
+    def __getitem__(self, t):
+        def stepper(start, stop, step):
+            t = start
+            c = lambda x,y: x>y if stop > start else lambda x,y: y>x
+            while c(t, stop):
+                yield t
+                t += step
+        
+        if isinstance(t, slice):
+            start = t.start
+            step = t.step
+            stop = t.stop
+            if start is None:
+                if step is None or step == 0:
+                    step = self.step
+                if step > 0:
+                    start = 0
+                else:
+                    start = 1
+            if stop is None:
+                if step is None or step == 0:
+                    step = self.step
+                if step > 0:
+                    stop = 1
+                else:
+                    stop = 0
+            if step is None or step == 0:
+                step = abs(self.step) if stop > step else -abs(step)
+            start = min(start, 1)
+            start = max(start, 0)
+            stop = min(stop, 1)
+            stop = max(stop, 0)
+