duplication mods

all bot upgrade mods are improved by about 33%
mod superdeterminism - spawns 6 mods  (was 3)

mod: futures exchange - canceling power ups increases duplication chance by 4%
mod: monte carlo experiment - spawn 2 mods, but you have a 50% chance to lose a random mod
  requires duplication mods, not available in custom
mod: exchange symmetry - spawn 1 mod with double your normal duplication chance
  requires duplication mods, not available in custom

todo.txt

@@ -1,7 +1,14 @@
 *********** NEXT PATCH ***********
 
-4 new mods: perpetual ammo/rerolls/heals - get that power up at the start of each level
-            also perpetual stun: stuns all mobs for 8 seconds at the start
+all bot upgrade mods are improved by about 33%
+mod superdeterminism - spawns 6 mods  (was 3)
+
+mod: futures exchange - canceling power ups increases duplication chance by 4%
+mod: monte carlo experiment - spawn 2 mods, but you have a 50% chance to lose a random mod
+  requires duplication mods, not available in custom
+mod: exchange symmetry - spawn 1 mod with double your normal duplication chance
+  requires duplication mods, not available in custom
+
 
 ************** BUGS **************
 
@@ -23,8 +30,15 @@
 
 ************** TODO **************
 
+mod: canceling a mod gun or field increases your duplication chance for all power up by 4%
+
+in custom make a top bar that is fixed
+  use media rules to make the layout look nice
+
 bot that follows the players history
   1st bot is at 5s, 2nd is at 4.5s, ...
+  bots don't get too close to player
+    run smoothing on position update, don't update if close to player, based on ordering
   effect:
     give player energy overfill
     damage mobs on contact
@@ -36,15 +50,15 @@ mob vision: look at player history
     if mobs can't see player, they could check to see if they can find player in the past
     https://abitawake.com/news/articles/enemy-ai-chasing-a-player-without-navigation2d-or-a-star-pathfinding
 
-mod negative mass field - mobs caught in the field take damage that increases with the relative velocity between the player and mob
-
 wormhole - make it clear when the wormhole can and can't teleport to a location before the player clicks
 
 time dilation - slow down the game engine by 1/2, but run an extra player cycle to simulate slow motion
 
 flavor - your bullets destroy blocks
   this isn't really a bonus, so maybe just add this as flavor to another mod/field/gun
-  a chance for destroyed blocks to drop ammo?
+  a chance for destroyed blocks to drop stuff
+    power ups
+    spores
 
 mod plasma : plasma length increases then decreases as you hold down the field button (like stabbing with a spear)
   grows to 1.5 longer after 0.3 seconds, then returns to normal length over 1 second, until field is pressed again