Add API functions to get the current effect time

2 files changed, 38 insertions, 0 deletions

diff --git a/README.md b/README.md
index 4d6a575..086b792 100644
--- a/README.md
+++ b/README.md
@@ -170,6 +170,24 @@ Careful! This function has *not* been tested yet!
 ##### Return value
 Always `nil`.
 
+#### `playereffects.get_remaining_effect_time(effect_id)`
+Returns the remaining time of an effect.
+
+##### Parameter
+* `effect_id`: The effect identifier of the effect in question
+
+##### Return value
+Iff the effect exists, the remaining effect time is returned in full seconds. Iff the effect does not exist, `nil` is returned.
+
+#### `playereffects.get_passed_effect_time(effect_id)`
+Returns the time an effect was in place.
+
+##### Parameter
+* `effect_id`: The effect identifier of the effect in question
+
+##### Return value
+Iff the effect exists, the number of seconds the effect is in place is returned. Iff the effect does not exist, `nil` is returned.
+
 #### `playereffects.get_player_effects(playername)`
 Returns all active effects of a player.
 
diff --git a/init.lua b/init.lua
index 42eefdf..d78b644 100644
--- a/init.lua
+++ b/init.lua
@@ -199,6 +199,26 @@ function playereffects.cancel_effect_group(groupname, playername)
 	end
 end
 
+function playereffects.get_remaining_effect_time(effect_id)
+	local now = os.time()
+	local effect = playereffects.effects[effect_id]
+	if(effect ~= nil) then
+		return (effect.time_left - os.difftime(now, effect.start_time))
+	else
+		return nil
+	end
+end
+
+function playereffects.get_passed_effect_time(effect_id)
+	local now = os.time()
+	local effect = playereffects.effects[effect_id]
+	if(effect ~= nil) then
+		return os.difftime(now, effect.start_time)
+	else
+		return nil
+	end
+end
+
 function playereffects.cancel_effect(effect_id)
 	local effect = playereffects.effects[effect_id]
 	if(effect ~= nil) then