### Enable mcl_localplayer in mods.conf

Source: https://mineclonia.codeberg.page/wiki/guides/localplayer.html

Configuration line required in the clientmods/mods.conf file to load the localplayer mod.

```text
# ... (if there are other lines here, keep them)
load_mod_mcl_localplayer = true
```

--------------------------------

### Compare textures side-by-side

Source: https://mineclonia.codeberg.page/wiki/nerds/scripts.html

Uses ImageMagick's montage tool to create side-by-side comparisons of textures between two resource packs.

```shell
#!/bin/sh
# needs imagemagick's montage (apt install imagemagick)

path_to_pp=~/var/src/MT/PixelPerfection #https://resourcepack.net/pixel-perfection-resource-pack
path_to_mc=~/var/src/MT/MineCraft #https://texture-packs.com/resourcepack/default-pack/
path_to_sbs=~/var/src/ppmc

mkdir -p $path_to_sbs
cd $path_to_pp/assets/minecraft/textures/block
for f in *.png; do 
	ff=$path_to_mc/assets/minecraft/textures/block/$f; 
    if [ -f $ff ]; then
    	montage $f $ff -tile 2x1 -geometry +0+0 $path_to_sbs/$f;
    fi; 
done
```

--------------------------------

### Calculate codebase size difference

Source: https://mineclonia.codeberg.page/wiki/nerds/scripts.html

Compares the total lines of code and byte size between two project directories.

```shell
#!/bin/sh
# Difference in code size between mcla and mcl2
mcla_path=$1
mcl2_path=$2

if [ ! -d ${mcla_path}/mods ] || [ ! -d ${mcl2_path}/mods ]; then echo "Usage: $0 mcla_path mcl2_path"; exit; fi

mcla_lines=$(find ${mcla_path}/mods -name "*.lua"|xargs cat |wc -l)
mcla_bytes=$(find ${mcla_path}/mods -name "*.lua"|xargs cat |wc -c)
mcl2_lines=$(find ${mcl2_path}/mods -name "*.lua"|xargs cat |wc -l)
mcl2_bytes=$(find ${mcl2_path}/mods -name "*.lua"|xargs cat |wc -c)

echo "# Code size difference of mcla and mcl2"
echo "## loc"
echo lua lines in mcl2: $mcl2_lines
echo lua lines in mcla: $mcla_lines
echo -n difference:; echo "$mcl2_lines - $mcla_lines" |bc
echo mcla is $(echo "$mcla_lines / $mcl2_lines * 100" |bc -l |head -c5)\% of mcl2
echo "## bytes"
echo lua bytes in mcl2: $mcl2_bytes
echo lua bytes in mcla: $mcla_bytes
echo -n difference:; echo "$mcl2_bytes - $mcla_bytes" |bc
echo mcla is $(echo "$mcla_bytes / $mcl2_bytes * 100" |bc -l|head -c5)\% of mcl2
```

--------------------------------

### Client data directory structure

Source: https://mineclonia.codeberg.page/wiki/guides/localplayer.html

The expected file structure for the clientmods directory within the user data folder.

```text
.minetest/
├─ .../
├─ clientmods/
│  ├─ mcl_localplayer/
│  │  ├─ ...
│  ├─ mods.conf
├─ .../
```

--------------------------------

### Configure minetest.conf for CSM

Source: https://mineclonia.codeberg.page/wiki/guides/localplayer.html

Required settings in minetest.conf to enable client-side modding and Mineclonia CSM support.

```text
enable_client_modding = true
mcl_enable_csm = true
```

--------------------------------

### Define Realm Barrier boundaries

Source: https://mineclonia.codeberg.page/wiki/nerds/world-structure.html

Sets the maximum and minimum height constants for the Realm Barrier layer in the End.

```lua
mg_realm_barrier_overworld_end_max = mg_end_max
mg_realm_barrier_overworld_end_min = mg_end_max - 11
```

--------------------------------

### List merged pull requests

Source: https://mineclonia.codeberg.page/wiki/nerds/scripts.html

Generates a markdown list of all merged pull requests since a specific release ID.

```shell
#!/bin/sh
# create a markdown list of all PRs since mcl2 release (or since issueid)

release=3644 #issue id of mcl2 release
git ls-remote mcl2 'pull/*/head' |grep "pull/$release" -A 500000 |cut -d '/' -f 3 | while read pr; do 
    l="https://git.minetest.land/MineClone2/MineClone2/pulls/$pr"; 
    p=$(curl -s $l); 
    if [ "$(echo $p|grep merged)" != "" ]; then 
        echo "- [ ] " $l $(echo $p|grep "<title>"|sed 's/<title>//;s/<\/title>//')|sed 's/ - MineClone2 - Mesehub$//'; 
    fi; 
done
```

--------------------------------

### Debug superfluous node definition fields

Source: https://mineclonia.codeberg.page/wiki/nerds/scripts.html

Hooks into minetest.register_node to identify and print fields in node definitions that match default values.

```lua
-- put at the end of builtin/game/register.lua to print superfluous fields in node defs
local old_rn = minetest.register_node
function minetest.register_node(name, def)
	local same = {}
	local same_found = false
	for k, v in pairs(def) do
		if type(v) ~= "table" and type(v) ~= "function" then
			if v == core.nodedef_default[k] and k ~= "type" then --type often gets copied when modified nodes are made from existing defs
				same[k] = v
				same_found = true
			end
		end
	end
	if same_found then
		print("superfluous node def fields for "..tostring(name)..":")
		print(dump(same))
	end
	return old_rn(name, def)
end
```

--------------------------------

### Calculate and List Chunk Positions

Source: https://mineclonia.codeberg.page/wiki/nerds/world-structure.html

Iterates through the defined range of chunk positions and prints the total count and individual coordinates.

```lua
local c = {}
for i = -30912, 30927, 80 do
       table.insert(c, i)
end
print (tostring(#c) .. " chunks: " .. table.concat(c, ", "))
```

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