From eebf1a5126c7ac71023ba26b060cb416728ec8e5 Mon Sep 17 00:00:00 2001
From: vgZerst <36623732+vgZerst@users.noreply.github.com>
Date: Mon, 17 Jan 2022 13:59:57 -0600
Subject: [PATCH] Attenuate evolution trap increases

Attenuate evolution trap increases based on game's current evolution_factor to improve difficulty slider scaling. See drive.google.com/file/d/1RBBZV3XRmvgwOTXJhr6aQJIaTatJc2WF
---
 worlds/factorio/data/mod_template/control.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/worlds/factorio/data/mod_template/control.lua b/worlds/factorio/data/mod_template/control.lua
index 4ef722cf..9d93a99d 100644
--- a/worlds/factorio/data/mod_template/control.lua
+++ b/worlds/factorio/data/mod_template/control.lua
@@ -505,7 +505,7 @@ commands.add_command("ap-get-technology", "Grant a technology, used by the Archi
     elseif item_name == "Evolution Trap" then
         if global.index_sync[index] == nil then -- not yet received trap
             global.index_sync[index] = item_name
-            game.forces["enemy"].evolution_factor = game.forces["enemy"].evolution_factor + TRAP_EVO_FACTOR
+            game.forces["enemy"].evolution_factor = game.forces["enemy"].evolution_factor + (TRAP_EVO_FACTOR * (1 - game.forces["enemy"].evolution_factor))
             game.print({"", "Received Evolution Trap from ", source, ". New factor:", game.forces["enemy"].evolution_factor})
         end
     else