Fix deprecated alpha / use_texture_alpha use

mods/beds/api.lua

@@ -31,6 +31,7 @@ function beds.register_bed(name, def)
 		wield_image = def.wield_image,
 		drawtype = "nodebox",
 		tiles = def.tiles.bottom,
+		use_texture_alpha = "clip",
 		paramtype = "light",
 		paramtype2 = "facedir",
 		is_ground_content = false,
@@ -150,6 +151,7 @@ function beds.register_bed(name, def)
 	minetest.register_node(name .. "_top", {
 		drawtype = "nodebox",
 		tiles = def.tiles.top,
+		use_texture_alpha = "clip",
 		paramtype = "light",
 		paramtype2 = "facedir",
 		is_ground_content = false,

mods/default/functions.lua

@@ -463,6 +463,7 @@ function default.register_mesepost(name, def)
 		},
 		paramtype = "light",
 		tiles = {def.texture, def.texture, post_texture_dark, post_texture_dark, post_texture, post_texture},
+		use_texture_alpha = "opaque",
 		light_source = default.LIGHT_MAX,
 		sunlight_propagates = true,
 		is_ground_content = false,

mods/default/nodes.lua

@@ -2213,7 +2213,7 @@ minetest.register_node("default:water_source", {
 			},
 		},
 	},
-	alpha = 191,
+	use_texture_alpha = "blend",
 	paramtype = "light",
 	walkable = false,
 	pointable = false,
@@ -2258,7 +2258,7 @@ minetest.register_node("default:water_flowing", {
 			},
 		},
 	},
-	alpha = 191,
+	use_texture_alpha = "blend",
 	paramtype = "light",
 	paramtype2 = "flowingliquid",
 	walkable = false,
@@ -2304,7 +2304,7 @@ minetest.register_node("default:river_water_source", {
 			},
 		},
 	},
-	alpha = 160,
+	use_texture_alpha = "blend",
 	paramtype = "light",
 	walkable = false,
 	pointable = false,
@@ -2354,7 +2354,7 @@ minetest.register_node("default:river_water_flowing", {
 			},
 		},
 	},
-	alpha = 160,
+	use_texture_alpha = "blend",
 	paramtype = "light",
 	paramtype2 = "flowingliquid",
 	walkable = false,
@@ -2578,6 +2578,7 @@ local function register_sign(material, desc, def)
 		sunlight_propagates = true,
 		is_ground_content = false,
 		walkable = false,
+		use_texture_alpha = "opaque",
 		node_box = {
 			type = "wallmounted",
 			wall_top    = {-0.4375, 0.4375, -0.3125, 0.4375, 0.5, 0.3125},

mods/default/torch.lua

@@ -29,6 +29,7 @@ minetest.register_node("default:torch", {
 		    name = "default_torch_on_floor_animated.png",
 		    animation = {type = "vertical_frames", aspect_w = 16, aspect_h = 16, length = 3.3}
 	}},
+	use_texture_alpha = "clip",
 	paramtype = "light",
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
@@ -81,6 +82,7 @@ minetest.register_node("default:torch_wall", {
 		    name = "default_torch_on_floor_animated.png",
 		    animation = {type = "vertical_frames", aspect_w = 16, aspect_h = 16, length = 3.3}
 	}},
+	use_texture_alpha = "clip",
 	paramtype = "light",
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
@@ -105,6 +107,7 @@ minetest.register_node("default:torch_ceiling", {
 		    name = "default_torch_on_floor_animated.png",
 		    animation = {type = "vertical_frames", aspect_w = 16, aspect_h = 16, length = 3.3}
 	}},
+	use_texture_alpha = "clip",
 	paramtype = "light",
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,

mods/doors/init.lua

@@ -436,6 +436,7 @@ function doors.register(name, def)
 	def.buildable_to = false
 	def.selection_box = {type = "fixed", fixed = {-1/2,-1/2,-1/2,1/2,3/2,-6/16}}
 	def.collision_box = {type = "fixed", fixed = {-1/2,-1/2,-1/2,1/2,3/2,-6/16}}
+	def.use_texture_alpha = "clip"
 
 	def.mesh = "door_a.obj"
 	minetest.register_node(":" .. name .. "_a", def)
@@ -581,6 +582,7 @@ function doors.register_trapdoor(name, def)
 	def.paramtype = "light"
 	def.paramtype2 = "facedir"
 	def.is_ground_content = false
+	def.use_texture_alpha = "clip"
 
 	if def.protected then
 		def.can_dig = can_dig_door

mods/flowers/init.lua

@@ -279,6 +279,7 @@ local waterlily_def = {
 	tiles = {"flowers_waterlily.png", "flowers_waterlily_bottom.png"},
 	inventory_image = "flowers_waterlily.png",
 	wield_image = "flowers_waterlily.png",
+	use_texture_alpha = "clip",
 	liquids_pointable = true,
 	walkable = false,
 	buildable_to = true,