Merge pull request 'Implement grass palette conversion, Add sugar cane colorisation' (#1889) from EliasFleckenstein03/MineClone2:tint into master

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/1889

mods/ITEMS/mcl_core/functions.lua

@@ -773,8 +773,7 @@ end
 
 local grass_spread_randomizer = PseudoRandom(minetest.get_mapgen_setting("seed"))
 
--- Return appropriate grass block node for pos
-function mcl_core.get_grass_block_type(pos)
+function mcl_core.get_grass_palette_index(pos)
 	local biome_data = minetest.get_biome_data(pos)
 	local index = 0
 	if biome_data then
@@ -785,7 +784,12 @@ function mcl_core.get_grass_block_type(pos)
 			index = reg_biome._mcl_palette_index
 		end
 	end
-	return {name="mcl_core:dirt_with_grass", param2=index}
+	return index
+end
+
+-- Return appropriate grass block node for pos
+function mcl_core.get_grass_block_type(pos)
+	return {name = "mcl_core:dirt_with_grass", param2 = mcl_core.get_grass_palette_index(pos)}
 end
 
 ------------------------------

mods/ITEMS/mcl_core/nodes_base.lua

@@ -365,7 +365,7 @@ minetest.register_node("mcl_core:dirt_with_grass", {
 	overlay_tiles = {"mcl_core_grass_block_top.png", "", {name="mcl_core_grass_block_side_overlay.png", tileable_vertical=false}},
 	palette = "mcl_core_palette_grass.png",
 	palette_index = 0,
-	color = "#55aa60",
+	color = "#8EB971",
 	is_ground_content = true,
 	stack_max = 64,
 	groups = {handy=1,shovely=1,dirt=2,grass_block=1, grass_block_no_snow=1, soil=1, soil_sapling=2, soil_sugarcane=1, cultivatable=2, spreading_dirt_type=1, enderman_takable=1, building_block=1},

mods/ITEMS/mcl_core/nodes_cactuscane.lua

@@ -53,7 +53,10 @@ minetest.register_node("mcl_core:reeds", {
 	_doc_items_longdesc = S("Sugar canes are a plant which has some uses in crafting. Sugar canes will slowly grow up to 3 blocks when they are next to water and are placed on a grass block, dirt, sand, red sand, podzol or coarse dirt. When a sugar cane is broken, all sugar canes connected above will break as well."),
 	_doc_items_usagehelp = S("Sugar canes can only be placed top of other sugar canes and on top of blocks on which they would grow."),
 	drawtype = "plantlike",
+	paramtype2 = "color",
 	tiles = {"default_papyrus.png"},
+	palette = "mcl_core_palette_grass.png",
+	palette_index = 0,
 	inventory_image = "mcl_core_reeds.png",
 	wield_image = "mcl_core_reeds.png",
 	paramtype = "light",
@@ -79,6 +82,7 @@ minetest.register_node("mcl_core:reeds", {
 	groups = {dig_immediate=3, craftitem=1, deco_block=1, plant=1, non_mycelium_plant=1, dig_by_piston=1},
 	sounds = mcl_sounds.node_sound_leaves_defaults(),
 	node_placement_prediction = "",
+	drop = "mcl_core:reeds", -- to prevent color inheritation
 	on_place = mcl_util.generate_on_place_plant_function(function(place_pos, place_node)
 		local soil_pos = {x=place_pos.x, y=place_pos.y-1, z=place_pos.z}
 		local soil_node = minetest.get_node_or_nil(soil_pos)
@@ -114,6 +118,15 @@ minetest.register_node("mcl_core:reeds", {
 		return false
 
 	end),
+	on_construct = function(pos)
+		local node = minetest.get_node(pos)
+		if node.param2 == 0 then
+			node.param2 = mcl_core.get_grass_palette_index(pos)
+			if node.param2 ~= 0 then
+				minetest.set_node(pos, node)
+			end
+		end
+	end,
 	_mcl_blast_resistance = 0,
 	_mcl_hardness = 0,
 })

mods/MAPGEN/mcl_biomes/init.lua

@@ -1496,7 +1496,7 @@ local function register_dimension_biomes()
 		heat_point = 100,
 		humidity_point = 0,
 		_mcl_biome_type = "hot",
-		_mcl_palette_index = 19,
+		_mcl_palette_index = 17,
 	})
 
 	--[[ THE END ]]

tools/Texture_Converter.py

@@ -118,17 +118,6 @@ def colorize_alpha(colormap, source, colormap_pixel, texture_size, destination):
 	colorize(colormap, source, colormap_pixel, texture_size, tempfile2.name)
 	os.system("composite -compose Dst_In "+source+" "+tempfile2.name+" -alpha Set "+destination)
 
-# This function is unused atm.
-# TODO: Implemnt colormap extraction
-def extract_colormap(colormap, colormap_pixel, positions):
-	os.system("convert -size 16x16 canvas:black "+tempfile1.name)
-	x=0
-	y=0
-	for p in positions:
-		os.system("convert "+colormap+" -crop 1x1+"+colormap_pixel+" -depth 8 "+tempfile2.name)
-		os.system("composite -geometry 16x16+"+x+"+"+y+" "+tempfile2.name)
-		x = x+1
-
 def target_dir(directory):
 	if make_texture_pack:
 		return output_dir + "/" + output_dir_name
@@ -397,20 +386,60 @@ def convert_textures():
 		colorize_alpha(FOLIAG, tex_dir+"/blocks/vine.png", "16+39", str(PXSIZE), target_dir("/mods/ITEMS/mcl_core/textures")+"/mcl_core_vine.png")
 
 		# Tall grass, fern (inventory images)
-		pcol = "49+172" # Plains grass color
+		pcol = "50+173" # Plains grass color
 		colorize_alpha(GRASS, tex_dir+"/blocks/tallgrass.png", pcol, str(PXSIZE), target_dir("/mods/ITEMS/mcl_flowers/textures")+"/mcl_flowers_tallgrass_inv.png")
 		colorize_alpha(GRASS, tex_dir+"/blocks/fern.png", pcol, str(PXSIZE), target_dir("/mods/ITEMS/mcl_flowers/textures")+"/mcl_flowers_fern_inv.png")
 		colorize_alpha(GRASS, tex_dir+"/blocks/double_plant_fern_top.png", pcol, str(PXSIZE), target_dir("/mods/ITEMS/mcl_flowers/textures")+"/mcl_flowers_double_plant_fern_inv.png")
 		colorize_alpha(GRASS, tex_dir+"/blocks/double_plant_grass_top.png", pcol, str(PXSIZE), target_dir("/mods/ITEMS/mcl_flowers/textures")+"/mcl_flowers_double_plant_grass_inv.png")
 
-		# TODO: Convert grass palette
-
-		offset = [
-			[ pcol, "", "grass" ], # Default grass: Plains
+		# Convert grass palette: https://minecraft.fandom.com/wiki/Tint
+		grass_colors = [
+			# [Coords or #Color, AdditionalTint], # Index - Minecraft biome name (MineClone2 biome names)
+			["50+173"], # 0 - Plains (flat, Plains, Plains_beach, Plains_ocean, End)
+			["0+255"], # 1 - Savanna (Savanna, Savanna_beach, Savanna_ocean)
+			["255+255"], # 2 - Ice Spikes (IcePlainsSpikes, IcePlainsSpikes_ocean)
+			["255+255"], # 3 - Snowy Taiga (ColdTaiga, ColdTaiga_beach, ColdTaiga_beach_water, ColdTaiga_ocean)
+			["178+193"], # 4 - Giant Tree Taiga (MegaTaiga, MegaTaiga_ocean)
+			["178+193"], # 5 - Giant Tree Taiga (MegaSpruceTaiga, MegaSpruceTaiga_ocean)
+			["203+239"], # 6 - Montains (ExtremeHills, ExtremeHills_beach, ExtremeHills_ocean)
+			["203+239"], # 7 - Montains (ExtremeHillsM, ExtremeHillsM_ocean)
+			["203+239"], # 8 - Montains (ExtremeHills+, ExtremeHills+_snowtop, ExtremeHills+_ocean)
+			["50+173"], # 9 - Beach (StoneBeach, StoneBeach_ocean)
+			["255+255"], # 10 - Snowy Tundra (IcePlains, IcePlains_ocean)
+			["50+173"], # 11 - Sunflower Plains (SunflowerPlains, SunflowerPlains_ocean)
+			["191+203"], # 12 - Taiga (Taiga, Taiga_beach, Taiga_ocean)
+			["76+112"], # 13 - Forest (Forest, Forest_beach, Forest_ocean)
+			["76+112"], # 14 - Flower Forest (FlowerForest, FlowerForest_beach, FlowerForest_ocean)
+			["101+163"], # 15 - Birch Forest (BirchForest, BirchForest_ocean)
+			["101+163"], # 16 - Birch Forest Hills (BirchForestM, BirchForestM_ocean)
+			["0+255"], # 17 - Desert and Nether (Desert, Desert_ocean, Nether)
+			["76+112", "#28340A"], # 18 - Dark Forest (RoofedForest, RoofedForest_ocean)
+			["#90814d"], # 19 - Mesa (Mesa, Mesa_sandlevel, Mesa_ocean, )
+			["#90814d"], # 20 - Mesa (MesaBryce, MesaBryce_sandlevel, MesaBryce_ocean)
+			["#90814d"], # 21 - Mesa (MesaPlateauF, MesaPlateauF_grasstop, MesaPlateauF_sandlevel, MesaPlateauF_ocean)
+			["#90814d"], # 22 - Mesa (MesaPlateauFM, MesaPlateauFM_grasstop, MesaPlateauFM_sandlevel, MesaPlateauFM_ocean)
+			["0+255"], # 23 - Shattered Savanna (or Savanna Plateau ?) (SavannaM, SavannaM_ocean)
+			["12+36"], # 24 - Jungle (Jungle, Jungle_shore, Jungle_ocean)
+			["12+36"], # 25 - Modified Jungle (JungleM, JungleM_shore, JungleM_ocean)
+			["12+61"], # 26 - Jungle Edge (JungleEdge, JungleEdge_ocean)
+			["12+61"], # 27 - Modified Jungle Edge (JungleEdgeM, JungleEdgeM_ocean)
+			["#6A7039"], # 28 - Swamp (Swampland, Swampland_shore, Swampland_ocean)
+			["25+25"], # 29 - Mushroom Fields and Mushroom Field Shore (MushroomIsland, MushroomIslandShore, MushroomIsland_ocean)
 		]
-		for o in offset:
-			colorize(GRASS, tex_dir+"/blocks/grass_top.png", o[0], str(PXSIZE), target_dir("/mods/ITEMS/mcl_core/textures")+"/default_"+o[2]+".png")
-			colorize_alpha(GRASS, tex_dir+"/blocks/grass_side_overlay.png", o[0], str(PXSIZE), target_dir("/mods/ITEMS/mcl_core/textures")+"/default_"+o[2]+"_side.png")
+
+		grass_palette_file = target_dir("/mods/ITEMS/mcl_core/textures") + "/mcl_core_palette_grass.png"
+		os.system("convert -size 16x16 canvas:transparent " + grass_palette_file)
+
+		for i, color in enumerate(grass_colors):
+			if color[0][0] == "#":
+				os.system("convert -size 1x1 xc:\"" + color[0] + "\" " + tempfile1.name + ".png")
+			else:
+				os.system("convert " + GRASS + " -crop 1x1+" + color[0] + " " + tempfile1.name + ".png")
+
+			if len(color) > 1:
+				os.system("convert " + tempfile1.name + ".png \\( -size 1x1 xc:\"" + color[1] + "\" \\) -compose blend -define compose:args=50,50 -composite " + tempfile1.name + ".png")
+
+			os.system("convert " + grass_palette_file + " \\( " + tempfile1.name + ".png -geometry +" + str(i % 16) + "+" + str(int(i / 16)) + " \\) -composite " + grass_palette_file)
 
 		# Metadata
 		if make_texture_pack: