Fixes collisions(#1183). (#1666)

* Fixes collisions. 

Before, if min_a, min_b, max_a, max_b weren't changed by the code, it would break(make odd collisions) as #1183 notes. Now, it always creates the collisions

* Update geometry.py

arcade/geometry.py

@@ -27,22 +27,23 @@ def are_polygons_intersecting(poly_a: PointList, poly_b: PointList) -> bool:
             normal = (projection_2[1] - projection_1[1],
                       projection_1[0] - projection_2[0])
 
-            min_a, max_a, min_b, max_b = (None,) * 4
+            min_a, min_b = (float("inf"),) * 2
+            max_a, max_b = (-float("inf"),) * 2
 
             for poly in poly_a:
                 projected = normal[0] * poly[0] + normal[1] * poly[1]
 
-                if min_a is None or projected < min_a:
+                if projected < min_a:
                     min_a = projected
-                if max_a is None or projected > max_a:
+                if projected > max_a:
                     max_a = projected
 
             for poly in poly_b:
                 projected = normal[0] * poly[0] + normal[1] * poly[1]
 
-                if min_b is None or projected < min_b:
+                if projected < min_b:
                     min_b = projected
-                if max_b is None or projected > max_b:
+                if projected > max_b:
                     max_b = projected
 
             # Avoid typing.cast() because this is a very hot path
@@ -193,4 +194,4 @@ def is_point_in_polygon(x: float, y: float, polygon: PointList) -> bool:
 
     # Return true if count is odd, false otherwise
     return count % 2 == 1
-
+