Added the OmnidirectionalActor class.

math_utils.py

@@ -3,5 +3,26 @@
 ###########################################
 import math
 
+PI = 3.14159
+
 def angle_to_vector(angle):
     return [math.cos(angle), math.sin(angle)]
+
+def normalize_vector_2D(vec):
+    norm = norm2_2D(vec)
+    return (vec[0] / norm, vec[1] / norm)
+
+def dot_product_2D(vec1, vec2):
+    return (vec1[0] * vec2[0]) + (vec1[1] * vec2[1])
+
+def norm2_2D(vec):
+    return math.sqrt(dot_product_2D(vec, vec))
+
+def angle_vectors_2D(vec1, vec2):
+    return math.atan2(vec2[1], vec2[0]) - math.atan2(vec1[1], vec1[0])
+
+def ang_2_radians(ang):
+    return ang * (180 / PI)
+
+def radians_2_ang(rad):
+    return rad * (PI / 180)