power up selection code rewrite

rewrite of the tech,gun,field selection code
  odds of new bugs is pretty high, but the code is shorter and faster, so easier to fix
path integral is no longer a JUNK tech
  lets you choose from every option on next tech
emergence is stackable
  +2 power up choices per stack

tech: integrated circuit - if ON +7 power up choices  if OFF -1

update matter.js engine 0.17.1 -> 0.18.0
  shouldn't change anything
big fixes

todo.txt

@@ -1,24 +1,59 @@
 ******************************************************** NEXT PATCH **************************************************
 
-nail gun tech: stress concentration - if a mob has below 50% durability after taking damage
-  from needles or rivets near the center of it's body it dies
+rewrite of the tech,gun,field selection code
+  odds of new bugs is pretty high, but the code is shorter and faster, so easier to fix
+path integral is no longer a JUNK tech
+  lets you choose from every option on next tech
+emergence is stackable
+  +2 power up choices per stack
 
-caliber 16->25% nail, needle, rivet size/damage 
-combined tech: flagella - spores move +50% faster
-  spores follow you if they can't find a target
-shock wave stun also applies to sporangium
-  no longer reduces explosion size
+tech: integrated circuit - if ON +7 power up choices  if OFF -1
 
-JUNK tech: reincarnation - kill all mobs and spawn new ones
-  (also spawn a few extra mobs for fun)
-
-updated pause menu and fields descriptions to new wording style
-
-bug fixes
+update matter.js engine 0.17.1 -> 0.18.0
+  shouldn't change anything
+big fixes
 
 *********************************************************** TODO *****************************************************
 
-Tech: florescence
+
+wormhole tech: entropic gravity - gain defense for each research
+  requires wormhole or negative mass field or pilot wave
+
+shrapnel: a new bullet type: a very small bullet with no targeting that has a high gravity arc
+  maybe 1 bounce or no bounce before it ends on map or mob collision
+  often spawns in groups
+
+testChamber2
+  mechanics
+    companion cube
+      bring cube to the end and use it to unlock research
+      level draws on the block to show it's different
+      only this block can trigger a button
+      if cube no longer exists or is off the map spawn a new one
+    double portal fling chain
+      for player?
+      for cube
+    button that activates a laser beam that hits a target and opens a door
+      in order to enter the door you need to place the cube on the button to activate the laser
+        cube has to fly through a portal in oder to get to the button
+      you can't use your body
+  story:
+    you pick up the cube early on and have to get it to a button
+    you run through the level to get the cube, clearing the level of mobs
+      picking up the cube spawns the boss
+        maybe an extra hard boss that is designed for that level
+        blockBoss?
+    you must get the cube to a button near the start of the level
+    the button opens a door
+      normal blocks don't work
+        normal blocks spawn into mobs like blockBoss
+        or mobs don't spawn blocks
+        or just the code looks for the cube
+        or the cube is resting on a button, and when you take the cube off the button the laser fires
+
+mitosis: after needle,bullets or rivets hit a surface split off into two smaller less damaging versions that have their velocity reset -firerate
+
+tech: florescence
 Hitting a mob makes it emit lasers from its vertices
   all laser but pulse?
     should trigger a global cd so it can't occur more then once per cycle
@@ -68,6 +103,9 @@ super balls do more damage after bouncing?
   how to check for bounce?
   maybe just increases damage after hitting a mob
 
+Make environmental damages also damage mobs
+So if a mob passes through laser, it gets damaged
+
 dark mode:
   look at Tinyfolks, 20 minutes till dawn