~~NOTOC~~
<=[[4rpl:start| Index]]\\
<= [[4rpl:start#Core Units]]

====== GetERNPortalEfficiency ======
GetERNPortalEfficiency(<-upgrade) ->efficiency

===== Description =====
Gets the efficiency of a given upgrade on the ern portal.  The returned efficiency is a floating point number between 0 and 1 inclusive.
The ERN portal has 6 possible upgrades and when and ERN is installed in a slot, the efficiency will go from 0 to 1 over time. A slot
without an ERN installed has an efficiency of 0.
The upgrade that is passed in should be a number from 0 to 5 inclusive. Each number represents one of the upgrades in the ERN portal.
  * UPGRADE_ENERGY_PRODUCTION = 0;
  * UPGRADE_MINE_PRODUCTION = 1;
  * UPGRADE_BUILD_SPEED = 2;
  * UPGRADE_MOVE_SPEED = 3;
  * UPGRADE_FIRE_RANGE = 4;
  * UPGRADE_FIRE_RATE = 5;

You can learn about how ERN portal efficiency normally affects units in the [[cw4:info:player_unit_data#ern_portal| Player Unit Data]] page, this can help you figure out how much of a boost to give your custom unit.

===== Examples =====
<code 4rpl>
GetERNPortalEfficiency(0) ->energyProductionUpgradeEfficiency
</code>
<=[[4rpl:start| Index]]