fixes

.luacheckrc

@@ -4,7 +4,8 @@ allow_defined_top = true
 globals = {
     "minetest",
     "mobkit",
-    "stairs"
+    "stairs",
+    "bucket"
 }
 
 read_globals = {

init.lua

@@ -915,6 +915,7 @@ minetest.register_node("swaz:roof_slope_red", {
 	drawtype= "mesh",
 	mesh = "swaz_roof_slope.b3d",
 	tiles = {"swaz_red_roof.png"},
+	use_texture_alpha = true,
 	is_ground_content = false,
 	paramtype2 = "facedir",
 	groups = {cracky = 3, stone = 1},
@@ -933,6 +934,7 @@ minetest.register_node("swaz:red_roof_corner", {
 	drawtype= "mesh",
 	mesh = "swaz_roof_corner.b3d",
 	tiles = {"swaz_red_roof.png"},
+	use_texture_alpha = true,
 	paramtype2 = "facedir",
 	is_ground_content = false,
 	groups = {cracky = 3, stone = 1},