import bpy
import re
from mathutils import *
from math import *

for material in bpy.data.materials:
	material.shadow_method = 'NONE' 
	
	#When method=BLEND
	arrayMaterials = [".*water_still.*", ".*water_flow.*", ".*glass.*", ".*sunflower_back.*", ".*sunflower_front.*", ".*trapdoor.*"]
	for am in arrayMaterials:
		if re.match(am, material.name):
			links = material.node_tree.links
			nodes = material.node_tree.nodes
			material.blend_method = 'BLEND'
			links.new(nodes['Principled BSDF'].inputs['Alpha'], nodes['Image Texture'].outputs['Alpha'])

	#When method=CLIP
	arrayMaterials = [".*leaves.*", ".*fern.*", ".*dandelion.*", ".*blue_orchid.*", ".*allium.*", ".*azure_bluet.*", ".*tulip.*", ".*oxeye_daisy.*", ".*cornflower.*", ".*lily_.*", ".*torch.*", ".*vine.*", ".*sunflower_top.*", ".*lilac.*", ".*peony.*", ".*campfire_fire.*", ".*campfire_log.*", ".*soul_campfire.*", ".*grass.*", ".*sunflower_bottom.*", ".*MW_bed.*", ".*bamboo_small_leaves.*", ".*bamboo_large_leaves.*", ".*ladder.*", ".*stonecutter.*", ".*bell.*", ".*cobweb.*", ".*_door_.*", ".*rail.*", ".*rose.*", ".*poppy.*", ".*scaffolding.*", "sugar_cane", "sea_pickle", ".*fungus.*", ".*coral.*", ".*kelp.*", ".*mushroom.*", "crimson_roots", "warped_roots", "nether_sprouts", "iron_bars", "chain", ".*lantern.*"]
	for am in arrayMaterials:
		if re.match(am, material.name):
			links = material.node_tree.links
			nodes = material.node_tree.nodes
			material.blend_method = 'CLIP'
			links.new(nodes['Principled BSDF'].inputs['Alpha'], nodes['Image Texture'].outputs['Alpha'])

	#Show backface
	arrayMaterials = [".*water_still.*", ".*water_flow.*", ".*sunflower_back.*", ".*sunflower_front.*"]
	for am in arrayMaterials:
		material.show_transparent_back = False
		if re.match(am, material.name):
			material.show_transparent_back = True