devtest: Add per-parameter usage help

games/devtest/mods/basetools/init.lua

@@ -520,6 +520,9 @@ end
 minetest.register_chatcommand("wear_color", {
 	params = "[idx]",
 	description = "Set wear bar color override",
+	params_description = {
+		{"idx", "Tool params override index"},
+	},
 	func = function(player_name, param)
 		local player = minetest.get_player_by_name(player_name)
 		if not player then return end

games/devtest/mods/testformspec/callbacks.lua

@@ -32,6 +32,11 @@ end)
 minetest.register_chatcommand("test_formspec_callbacks", {
 	params = "[ 0 | 1 | 2 ]",
 	description = "Test: Change formspec callbacks testing mode",
+	params_description = {
+		{"0", "Disable callback test"},
+		{"1", "Callback test mode 1: Logging only"},
+		{"2", "Callback test mode 2: Three callbacks, disable pre-registered callbacks"},
+	},
 	func = function(name, param)
 		local mode = tonumber(param)
 		if not mode then

games/devtest/mods/testhud/init.lua

@@ -55,6 +55,9 @@ end)
 minetest.register_chatcommand("hudfonts", {
 	params = "[<HUD elements>]",
 	description = "Show/Hide some text on the HUD with various font options",
+	params_description = {
+		{"<HUD elements>", "Font state index"},
+	},
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
 		local param = tonumber(param) or 0
@@ -84,7 +87,12 @@ minetest.register_chatcommand("hudfonts", {
 local player_waypoints = {}
 minetest.register_chatcommand("hudwaypoints", {
 	params = "[ add | add_change | remove ]",
-	description = "Create HUD waypoints at your position for testing (add: Add waypoints and change them after 0.5s (default). add_change: Add waypoints and change immediately. remove: Remove all waypoints)",
+	description = "Create HUD waypoints at your position for testing",
+	params_description = {
+		{"add", "Add waypoints and change them after 0.5s (default)"},
+		{"add_change", "Add waypoints and change immediately"},
+		{"remove", "Remove all waypoints"},
+	},
 	func = function(name, params)
 		local player = minetest.get_player_by_name(name)
 		if not player then
@@ -189,6 +197,9 @@ end)
 minetest.register_chatcommand("zoomfov", {
 	params = "[<FOV>]",
 	description = "Set or display your zoom_fov",
+	params_description = {
+		{"<FOV>", "Field of view to set, in degrees"}
+	},
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
 		if not player then

games/devtest/mods/util_commands/init.lua

@@ -1,6 +1,9 @@
 minetest.register_chatcommand("hotbar", {
 	params = "<size>",
 	description = "Set hotbar size",
+	params_description = {
+		{"<size>", "Hotbar size to set, in slots"},
+	},
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
 		if not player then
@@ -22,6 +25,9 @@ minetest.register_chatcommand("hotbar", {
 minetest.register_chatcommand("hp", {
 	params = "<hp>",
 	description = "Set your health",
+	params_description = {
+		{"<hp>", "Health points to set"},
+	},
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
 		if not player then
@@ -64,6 +70,9 @@ minetest.register_chatcommand("infplace", {
 minetest.register_chatcommand("detach", {
 	params = "[<radius>]",
 	description = "Detach all objects nearby",
+	params_description = {
+		{"<radius>", "Radius to check for objects within, in nodes (default: 8)"},
+	},
 	func = function(name, param)
 		local radius = tonumber(param)
 		if type(radius) ~= "number" then
@@ -91,6 +100,11 @@ minetest.register_chatcommand("detach", {
 minetest.register_chatcommand("use_tool", {
 	params = "(dig <group> <leveldiff>) | (hit <damage_group> <time_from_last_punch>) [<uses>]",
 	description = "Apply tool wear a number of times, as if it were used for digging",
+	params_description = {
+		{"dig <group> <leveldiff>", "Emulate digging node with <group> of <leveldiff>"},
+		{"hit <damage_group> <time_from_last_punch>", "Emulate hitting entity of <damage_group> with <time_from_last_punch>"},
+		{"<uses>", "Amount of uses to wear tool by"},
+	},
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
 		if not player then
@@ -166,6 +180,11 @@ end
 minetest.register_chatcommand("set_displayed_itemcount", {
 	params = "(-s \"<string>\" [-c <color>]) | -a <alignment_num>",
 	description = "Set the displayed itemcount of the wielded item",
+	params_description = {
+		{"-s \"<string>\"", "String to set in place of the itemcount"},
+		{"-c <color>", "Color of the string to set (ColorString)"},
+		{"-a <alignment_num>", "Alignment number"},
+	},
 	func = function(name, param)
 		local player = minetest.get_player_by_name(name)
 		local item = player:get_wielded_item()
@@ -233,11 +252,14 @@ minetest.register_chatcommand("dump_wear_bar", {
 	end,
 })
 
-core.register_chatcommand("set_saturation", {
-    params = "<saturation>",
-    description = "Set the saturation for current player.",
-    func = function(player_name, param)
-        local saturation = tonumber(param)
-        minetest.get_player_by_name(player_name):set_lighting({saturation = saturation })
-    end
+minetest.register_chatcommand("set_saturation", {
+	params = "<saturation>",
+	description = "Set the saturation for current player",
+	params_description = {
+		{"<saturation>", "Saturation value"},
+	},
+	func = function(player_name, param)
+		local saturation = tonumber(param)
+		minetest.get_player_by_name(player_name):set_lighting({saturation = saturation })
+	end
 })