init.lua

-- GRAB FROM HERE: https://raw.githubusercontent.com/Jordach/Solar_Plains/master/mods/core/models/character.x
-- AND THIS: https://raw.githubusercontent.com/Jordach/Solar_Plains/master/mods/core/models/player_singleplayer2.png
-- ARMOR LAYOUT: https://raw.githubusercontent.com/Jordach/Solar_Plains/be0f2657baff7d1de95754f70ffa36c5cef3ea7f/blends/base_armour.png
-- OVERLAY THIS UNDER ARMOR: https://raw.githubusercontent.com/Jordach/Solar_Plains/be0f2657baff7d1de95754f70ffa36c5cef3ea7f/blends/base_armour_straps.png

local function get_size(w)
	local file = io.open(w)
	if file then
		file:seek("set", 16)
		local widthstr, heightstr = file:read(4), file:read(4)
	  -- magic BS
		local width=widthstr:sub(1,1):byte()*16777216+widthstr:sub(2,2):byte()*65536+widthstr:sub(3,3):byte()*256+widthstr:sub(4,4):byte()
		local height=heightstr:sub(1,1):byte()*16777216+heightstr:sub(2,2):byte()*65536+heightstr:sub(3,3):byte()*256+heightstr:sub(4,4):byte()
	
		file:close()
	
		return width, height
	end
end

-- use inside on_joinplayer
local your_texture_path = minetest.get_modpath("YOUR FOLDER").."/textures/"

minetest.register_on_joinplayer(function(player)
	local pname = player:get_player_name()
	local f = io.open(your_texture_path.."player_"..pname..".png")
			
	if f then
		local w, h = get_size(your_texture_path.."player_"..pname..".png")

		if w / h == 2 then -- this is a 64x32 type skin		
				print ("[INFO] " .. pname .. " has a 64x32 type skin!")
				player:set_properties({
					textures = {
						"player_" .. pname .. ".png", -- 64x32
						"transparent.png", -- 64x64
						"transparent.png", -- head armor
						"transparent.png", -- chest armor
						"transparent.png", -- leg armor
						"transparent.png", -- boots
						"transparent.png", -- shield
					},
				})
		else -- this is a square 64x64 type skin;
				print ("[INFO] " .. pname .. " has a 64x64 type skin!")
				player:set_properties({
					textures = {
						"transparent.png", -- 64x32
						"player_" .. pname .. ".png", -- 64x64
						"transparent.png", -- head armor
						"transparent.png", -- chest armor
						"transparent.png", -- leg armor
						"transparent.png", -- boots
						"transparent.png", -- shield
					},
				})
		end
	else -- no skin found
		player:set_properties({
						"transparent.png",
						"player_singleplayer2.png",
						"transparent.png",
						"transparent.png",
						"transparent.png",
						"transparent.png",
						"transparent.png",
					},
				})
	end
			
end)

-- USE THIS TO IMPLEMENT AGAINST THE NEW PLAYER API!!!
-- TEXTURES ARE PLACEHOLDER NAMES

default.player_register_model("character.x", {
	animation_speed = 30,
	textures = {
			-- NO DEFAULT TEXTURE SUPPLIED:
			-- THIS IS A GUIDE TO MODEL MATERIALS
		        -- ARMOR FORMAT IS 64x32
				"64x32_layer", 
				"64x64_layer",
				"armor_helment.png",
				"armor_chest.png", 
				"armor_legs.png", 
				"armor_boots.png", 
				"armor_shield.png"
	},
	animations = {
		-- Standard animations.
		stand     = { x=  0, y= 79, },
		lay       = { x=162, y=166, },
		walk      = { x=168, y=187, },
		mine      = { x=189, y=198, },
		walk_mine = { x=200, y=219, },
		dead      = { x= 221, y=225, },
		-- Utility animations (not currently used by the game; but still usable by mods).
		sit       = { x= 81, y=160, },
	},
	collisionbox = {-0.3, 0.0, -0.3, 0.3, 1.77, 0.3},
	stepheight = 0.6,
})