Made overdrive not spend all excess energy unless every player has fu…

…ll storage. Fixes #2649.

LuaRules/Gadgets/unit_mex_overdrive.lua

@@ -989,6 +989,7 @@ function gadget:GameFrame(n)
 			local allyTeamNegativeSpare = 0
 			local allyTeamEnergyCurrent = 0
 			local allyTeamEnergyMax = 0
+			local allyTeamEnergyMaxCurMax = 0
 
 			local allyTeamMiscMetalIncome = 0
 
@@ -1046,6 +1047,7 @@ function gadget:GameFrame(n)
 				allyTeamEnergyCurrent = allyTeamEnergyCurrent + te.cur
 				allyTeamEnergyMax = allyTeamEnergyMax + te.max
 				allyTeamExpense = allyTeamExpense + te.exp
+				allyTeamEnergyMaxCurMax = allyTeamEnergyMaxCurMax + math.max(te.max, te.cur) -- This prevents full overdrive until everyone has full energy storage.
 
 				te.spare = te.inc - te.exp
 				if te.max == MIN_STORAGE and te.spare < MIN_STORAGE then
@@ -1083,12 +1085,12 @@ function gadget:GameFrame(n)
 
 			-- This is how much energy will be spent on overdrive. It remains to determine how much
 			-- is spent by each player.
-			local energyForOverdrive = max(0, allyTeamEnergySpare)*((allyTeamEnergyMax > 0 and max(0, min(1, allyTeamEnergyCurrent/allyTeamEnergyMax))) or 1)
+			local energyForOverdrive = max(0, allyTeamEnergySpare)*((allyTeamEnergyMaxCurMax > 0 and max(0, min(1, allyTeamEnergyCurrent/allyTeamEnergyMaxCurMax))) or 1)
 
 			if debugMode then
 				Spring.Echo("=========== AllyTeam Economy ===========", allyTeamID)
 				Spring.Echo("inc", allyTeamEnergyIncome, "exp", allyTeamExpense, "spare", allyTeamEnergySpare)
-				Spring.Echo("+spare", allyTeamPositiveSpare, "-spare", allyTeamNegativeSpare, "cur", allyTeamEnergyCurrent, "max", allyTeamEnergyMax, "energyForOverdrive", energyForOverdrive)
+				Spring.Echo("+spare", allyTeamPositiveSpare, "-spare", allyTeamNegativeSpare, "cur", allyTeamEnergyCurrent, "max", allyTeamEnergyMax, "maxCurMax", allyTeamEnergyMaxCurMax, "energyForOverdrive", energyForOverdrive)
 			end
 
 			-- The following inequality holds: