Add kill assists (#755)

* Update teams.lua

* Update teams.lua and init.lua

* Update teams.lua and init.lua

* Update teams.lua and init.lua

* Update teams.lua and init.lua Kill assist implemented

* Update init.lua Remove unused variables

* Added ctf.clearAssists function
Only awards those who did more that 50% of damage
Clears attackers stats after suicide

* Remove unused variable

* Minor modifications

renamed ctf.clearAssists to ctf.clear_assists
changed playerName to player

* Cap assist points

* Reaching full health while in combat clears assist data

* split points between assisting players by damage done

* Reworked assist data storage to work with a table rather than player metadata

* Fix lua check

* Removed duplicate scoring

* Change kill assist color

* Health regen subtracts from assist.
Suicide gives assist points

* Fixed accessing nil value for max_hp

* Corrected max_hp

* hardcode hp list for max hp

mods/pvp/anticoward/init.lua

@@ -153,6 +153,7 @@ minetest.register_globalstep(function(dtime)
 
 				if player then
 					player:hud_remove(potential_cowards[k].hud or 0)
+					ctf.clear_assists(k)
 				end
 
 				potential_cowards[k] = nil

mods/pvp/hpregen/init.lua

@@ -16,8 +16,10 @@ local function regen_all()
 			local newhp = oldhp + hpregen.amount
 			if newhp > player:get_properties().hp_max then
 				newhp = player:get_properties().hp_max
+				ctf.clear_assists(player:get_player_name())
 			end
 			if oldhp ~= newhp then
+				ctf.add_heal_assist(player:get_player_name(), hpregen.amount)
 				player:set_hp(newhp)
 			end
 		end

mods/pvp/medkits/init.lua

@@ -117,6 +117,7 @@ minetest.register_globalstep(function(dtime)
 			if pstat then
 				local hp = player:get_hp()
 				if hp < pstat.regen_max then
+					ctf.add_heal_assist(name, regen_step)
 					player:set_hp(math.min(hp + regen_step, pstat.regen_max))
 				else
 					stop_healing(player)