BGE: Extend Python API for KX_BlenderMaterial (specular, diffuse…)

Add support for material diffuse, specular… in KX_BlenderMaterial python proxy. And use mathutils in KX_BlenderMaterial for the specular and diffuse color in KX_BlenderMaterial.

Reviewers: sybren, brita_, kupoman, agoose77, dfelinto, moguri, campbellbarton, hg1

Reviewed By: moguri, campbellbarton, hg1

Subscribers: dfelinto

Projects: #game_engine

Differential Revision: https://developer.blender.org/D1298

doc/python_api/rst/bge_types/bge.types.KX_BlenderMaterial.rst

@@ -89,6 +89,48 @@ base class --- :class:`PyObjectPlus`
       :return: the material's shader
       :rtype: :class:`BL_Shader`
 
+   .. attribute:: alpha
+
+      The material's alpha transparency.
+
+      :type: float between 0.0 and 1.0 inclusive
+
+   .. attribute:: hardness
+
+      How hard (sharp) the material's specular reflection is.
+
+      :type: integer between 1 and 511 inclusive
+
+   .. attribute:: emit
+
+      Amount of light to emit.
+
+      :type: float between 0.0 and 2.0 inclusive
+
+   .. attribute:: specularIntensity
+
+      How intense (bright) the material's specular reflection is.
+
+      :type: float between 0.0 and 1.0 inclusive
+
+   .. attribute:: diffuseIntensity
+
+      The material's amount of diffuse reflection.
+
+      :type: float between 0.0 and 1.0 inclusive
+
+   .. attribute:: specularColor
+
+      The material's specular color.
+
+      :type: :class:`mathutils.Color`
+
+   .. attribute:: diffuseColor
+
+      The material's diffuse color.
+
+      :type: :class:`mathutils.Color`
+
    .. method:: setBlending(src, dest)
 
       Set the pixel color arithmetic functions.