optimize pngs, add is_ground_content to everything

df_primordial_items/ceiling_fungus.lua

@@ -43,6 +43,7 @@ minetest.register_node("df_primordial_items:glow_orb_hanging", {
 	paramtype2 = "degrotate",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),

df_primordial_items/fungal_nodes.lua

@@ -18,6 +18,7 @@ minetest.register_node("df_primordial_items:fungal_grass_1", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -35,6 +36,7 @@ minetest.register_node("df_primordial_items:fungal_grass_2", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	place_param2 = 3,
 	sounds = default.node_sound_leaves_defaults(),
@@ -55,6 +57,7 @@ minetest.register_node("df_primordial_items:glow_orb", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 9,
 	sounds = default.node_sound_leaves_defaults(),
@@ -73,6 +76,7 @@ minetest.register_node("df_primordial_items:glow_orb_stalks", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),
@@ -91,6 +95,7 @@ minetest.register_node("df_primordial_items:glow_pods", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),
@@ -105,6 +110,7 @@ minetest.register_node("df_primordial_items:dirt_with_mycelium", {
 	description = S("Dirt With Primordial Mycelium"),
 	tiles = {"dfcaverns_mush_soil.png"},
 	groups = {crumbly = 3, soil = 1},
+	is_ground_content = false,
 	drops = "default:dirt",
 	sounds = default.node_sound_dirt_defaults(),
 	light_source = 3,

df_primordial_items/giant_fern.lua

@@ -38,6 +38,7 @@ minetest.register_node("df_primordial_items:giant_fern_tree_slant_bottom", {
 	drop = "df_primordial_items:giant_fern_tree",
 	groups = {choppy = 2, tree = 1, oddly_breakable_by_hand=1, flammable = 2, fern_stem = 1},
 	sounds = default.node_sound_wood_defaults(),
+	is_ground_content = false,
 	on_place = minetest.rotate_node,
 	selection_box = {
 		type = "fixed",
@@ -74,6 +75,7 @@ minetest.register_node("df_primordial_items:giant_fern_tree_slant_top", {
 	drop = "df_primordial_items:giant_fern_tree",
 	groups = {choppy = 2, tree = 1, oddly_breakable_by_hand=1, flammable = 2, fern_stem = 1},
 	sounds = default.node_sound_wood_defaults(),
+	is_ground_content = false,
 	on_place = minetest.rotate_node,
 	selection_box = {
 		type = "fixed",
@@ -110,6 +112,7 @@ minetest.register_node("df_primordial_items:giant_fern_tree_slant_full", {
 	drop = "df_primordial_items:giant_fern_tree",
 	groups = {choppy = 2, tree = 1, oddly_breakable_by_hand=1, flammable = 2, fern_stem = 1},
 	sounds = default.node_sound_wood_defaults(),
+	is_ground_content = false,
 	on_place = minetest.rotate_node,
 	selection_box = {
 		type = "fixed",
@@ -253,6 +256,7 @@ minetest.register_node("df_primordial_items:fern_sapling", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,

df_primordial_items/jungle_mushroom.lua

@@ -97,6 +97,7 @@ minetest.register_node("df_primordial_items:jungle_mushroom_sapling", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,

df_primordial_items/jungle_nodes.lua

@@ -17,6 +17,7 @@ minetest.register_node("df_primordial_items:fern_1", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -35,6 +36,7 @@ minetest.register_node("df_primordial_items:fern_2", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -55,6 +57,7 @@ minetest.register_node("df_primordial_items:glow_plant_1", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),
@@ -73,6 +76,7 @@ minetest.register_node("df_primordial_items:glow_plant_2", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),
@@ -91,6 +95,7 @@ minetest.register_node("df_primordial_items:glow_plant_3", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),
@@ -113,6 +118,7 @@ minetest.register_node("df_primordial_items:jungle_grass_1", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -130,6 +136,7 @@ minetest.register_node("df_primordial_items:jungle_grass_2", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	place_param2 = 3,
 	sounds = default.node_sound_leaves_defaults(),
@@ -148,6 +155,7 @@ minetest.register_node("df_primordial_items:jungle_grass_3", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	place_param2 = 3,
 	sounds = default.node_sound_leaves_defaults(),
@@ -173,9 +181,9 @@ minetest.register_node("df_primordial_items:jungle_ivy", {
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
 	sunlight_propagates = true,
+	is_ground_content = false,
 	walkable = false,
 	climbable = true,
-	is_ground_content = false,
 	selection_box = {
 		type = "wallmounted",
 	},
@@ -195,6 +203,7 @@ minetest.register_node("df_primordial_items:jungle_mushroom_1", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -212,6 +221,7 @@ minetest.register_node("df_primordial_items:jungle_mushroom_2", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	buildable_to = true,
+	is_ground_content = false,
 	walkable = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -225,6 +235,7 @@ minetest.register_node("df_primordial_items:dirt_with_jungle_grass", {
 	description = S("Dirt With Primordial Jungle Grass"),
 	tiles = {"dfcaverns_jungle_plant_grass_node_01.png"},
 	groups = {crumbly = 3, soil = 1, spreading_dirt_type = 1},
+	is_ground_content = false,
 	drops = "default:dirt",
 	sounds = default.node_sound_dirt_defaults(),
 })
@@ -233,6 +244,7 @@ minetest.register_node("df_primordial_items:plant_matter", {
 	_doc_items_longdesc = df_primordial_items.doc.plant_matter_desc,
 	_doc_items_usagehelp = df_primordial_items.doc.plant_matter_usage,
 	tiles = {"dfcaverns_jungle_plant_matter_01.png"},
+	is_ground_content = false,
 	groups = {crumbly = 3, soil = 1},
 	sounds = default.node_sound_dirt_defaults(),
 })
@@ -284,6 +296,7 @@ minetest.register_node("df_primordial_items:jungle_roots_2", {
 	drawtype = "plantlike",
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
+	is_ground_content = false,
 	sunlight_propagates = true,
 	walkable = false,
 	climbable = true,
@@ -304,6 +317,7 @@ minetest.register_node("df_primordial_items:jungle_thorns", {
 	paramtype = "light",
 	drawtype = "plantlike",
 	walkable = false,
+	is_ground_content = false,
 	place_param2 = 3,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,

df_primordial_items/jungle_tree.lua

@@ -225,6 +225,7 @@ minetest.register_node("df_primordial_items:jungletree_sapling", {
 	drawtype = "plantlike",
 	buildable_to = true,
 	walkable = false,
+	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
 	sunlight_propagates = true,

df_primordial_items/primordial_mushroom.lua

@@ -38,6 +38,7 @@ minetest.register_node("df_primordial_items:mushroom_gills", {
 	drawtype = "plantlike",
 	waving = 2,
 	walkable = false,
+	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
 	sunlight_propagates = true,
@@ -68,6 +69,7 @@ minetest.register_node("df_primordial_items:mushroom_gills_glowing", {
 	drawtype = "plantlike",
 	waving = 2,
 	walkable = false,
+	is_ground_content = false,
 	light_source = 6,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
@@ -652,6 +654,7 @@ minetest.register_node("df_primordial_items:mush_sapling", {
 	drawtype = "plantlike",
 	buildable_to = true,
 	walkable = false,
+	is_ground_content = false,
 	sounds = default.node_sound_leaves_defaults(),
 	use_texture_alpha = true,
 	sunlight_propagates = true,