Fix MineWays white textures/alpha for blender

mineways-fix.py

'''
  This script goes through every textureSlot setting settings such that the blocks are rendered correctly in the scene
  beware, this sets those properties for ALL objects, so this script should when theres only the world on the scene
  
  also, I've only programmed in python for blender scripting, so the code may be substandard for other pythonists out there
'''
import bpy

objects = bpy.data.objects

for i in range(0, len(objects)):
    object = objects[i]
    materialSlots = object.material_slots
    for j in range(0, len(materialSlots)):
        materialSlot = materialSlots[j]
        if materialSlot:
            material = materialSlot.material
            textureSlots = material.texture_slots
            for k in range(0, len(textureSlots)):
                textureSlot = textureSlots[k]
                if textureSlot:
                    texture = textureSlot.texture
                    if isinstance(texture, bpy.types.ImageTexture):
                        texture.use_filter_size_min = True
                        texture.use_mipmap = False
                        texture.use_interpolation = False
                    textureSlot.use_map_alpha = True