Add API for Mana regneration

API.md

@@ -43,6 +43,12 @@ If the new maximum would become smaller than the current value,
 the current value will automatically be set to
 the new maximum.
 
+### `mana.setregen(playername, value)`
+Sets the mana regeneration per mana tick of the player to `value`.
+Negative values are not permitted.
+The length of one “mana tick” is specified as the server-wide setting
+`mana_default_regen` in seconds.
+
 
 ### `mana.get(playername)`
 Returns the current mana of the specified player as number.
@@ -52,6 +58,13 @@ Returns the current mana of the specified player as number.
 Returns the current maximum mana of the specified player as number.
 
 
+### `mana.getregen(playername)`
+Returns the current mana regneration per mana tick of the specified
+player as number.
+The length of one “mana tick” is specified as the server-wide setting
+`mana_default_regen` in seconds.
+
+
 ### `mana.add(playername, value)`
 Adds the specified non-negative amount of mana to the player, but only
 if the sum would not be greater than the maximum,

init.lua

@@ -67,6 +67,14 @@ function mana.setmax(playername, value)
 	end
 end
 
+function mana.setregen(playername, value)
+	if value < 0 then
+		value = 0
+		minetest.log("info", "[mana] Warning: mana.setregen was called with negative value!")
+	end
+	mana.playerlist[playername].regen = value
+end
+
 function mana.get(playername)
 	return mana.playerlist[playername].mana
 end
@@ -75,6 +83,10 @@ function mana.getmax(playername)
 	return mana.playerlist[playername].maxmana
 end
 
+function mana.getregen(playername)
+	return mana.playerlist[playername].regen
+end
+
 function mana.add_up_to(playername, value)
 	local t = mana.playerlist[playername]
 	if(t ~= nil and value >= 0) then