Organized modules into individual files

tools/animation-tools/MatrixMath.py

@@ -0,0 +1,17 @@
+import math
+from pygame.math import Vector3
+
+def project(vector, w, h, fov, distance):
+    factor = math.atan(fov / 2 * math.pi / 180) / (distance + vector.z)
+    x = vector.x * factor * w + w / 2
+    y = -vector.y * factor * w + h / 2
+    return Vector3(x, y, vector.z)
+
+def rotate_vertices(vertices, angle, axis):
+    return [v.rotate(angle, axis) for v in vertices]
+def scale_vertices(vertices, s):
+    return [Vector3(v[0]*s[0], v[1]*s[1], v[2]*s[2]) for v in vertices]
+def translate_vertices(vertices, t):
+    return [v + Vector3(t) for v in vertices]
+def project_vertices(vertices, w, h, fov, distance):
+    return [project(v, w, h, fov, distance) for v in vertices]