Various changes and improvements (#1)

* Use mod.conf for (soft) dependencies and description.
* Deletes deprecated `depends.txt` and `description.txt`.
* Add GitHub workflow to LuaCheck the code
* Fix minor LuaCheck warnings

.github/workflows/build.yml

@@ -0,0 +1,16 @@
+name: build
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@master
+    - name: apt
+      run: sudo apt-get install -y luarocks
+    - name: luacheck install
+      run: luarocks install --local luacheck
+    - name: luacheck run
+      run: $HOME/.luarocks/bin/luacheck ./

.luacheckrc

@@ -1,4 +1,4 @@
-
+allow_defined_top = true
 unused_args = false
 
 globals = {

depends.txt

@@ -1,3 +0,0 @@
-3d_armor
-technic_worldgen?
-moreores?

description.txt

@@ -1 +0,0 @@
-Adds tin, silver and technic materials to 3d_armor.

init.lua

@@ -11,7 +11,8 @@ local stats = {
 	brass = { name=S("Brass"), material="technic:brass_ingot", armor=1.8, heal=0, use=650, radiation=43 },
 	cast = { name=S("Cast Iron"), material="technic:cast_iron_ingot", armor=2.5, heal=8, use=200, radiation=40 },
 	carbon = { name=S("Carbon Steel"), material="technic:carbon_steel_ingot", armor=2.7, heal=10, use=100, radiation=40 },
-	stainless = { name=S("Stainless Steel"), material="technic:stainless_steel_ingot", armor=2.7, heal=10, use=75, radiation=40 },
+	stainless = { name=S("Stainless Steel"), material="technic:" ..
+	"stainless_steel_ingot", armor=2.7, heal=10, use=75, radiation=40 },
 }
 if minetest.get_modpath("moreores") then
 	stats.tin = { name=S("Tin"), material="moreores:tin_ingot", armor=1.6, heal=0, use=750, radiation=37 }
@@ -51,10 +52,14 @@ for key, armor in pairs(stats) do
 	for partkey, part in pairs(parts) do
 		local partname = "technic_armor:"..partkey.."_"..key
 		minetest.register_tool(partname, {
-			-- Translators: @1 stands for material and @2 for part of the armor, so that you could use a conjunction if in your language part name comes first then material (e.g. in french 'Silver Boots' is translated in 'Bottes en argent' by using '@2 en @1' as translated string)
+			-- Translators: @1 stands for material and @2 for part of the armor
+			-- so that you could use a  conjunction if in your language part name
+			-- comes first then material (e.g. in french 'Silver Boots'
+			-- is translated in 'Bottes en argent' by using '@2 en @1' as translated string)
 			description = S("@1 @2", armor.name, part.name),
 			inventory_image = "technic_armor_inv_"..partkey.."_"..key..".png",
-			groups = {["armor_"..part.place]=math.floor(part.level*armor.armor), armor_heal=armor.heal, armor_use=armor.use, armor_radiation=math.floor(part.radlevel*armor.radiation)},
+			groups = {["armor_"..part.place]=math.floor(part.level*armor.armor), armor_heal=armor.heal,
+			armor_use=armor.use, armor_radiation=math.floor(part.radlevel*armor.radiation)},
 			wear = 0,
 		})
 		minetest.register_craft({

mod.conf

@@ -0,0 +1,3 @@
+name = technic_armor
+depends = 3d_armor
+optional_depends = moreores, technic_worldgen