working on mods, added death at 12% mod

js/index.js

@@ -1,168 +1,4 @@
 "use strict";
-/* TODO:  *******************************************
-*****************************************************
-
-mod - mobs die at 15% life  (default is 5%)
-
-mod - negative mass field - mke block orbit player, like black hole boss
-  named rotational frame-dragging
-
-mod - energy recharges faster when not moving
-
-lore - a mech gains self awareness
-  each mod/gun/field is a new tech
-    all the technology leads to the singularity
-  each game run is actually the mech simulating a possible escape
-    this is why the graphics are so bad, its just a simulation
-    final mod is "this is just a simulation"
-      you get immortality and Infinity damage
-      the next level is the final level
-  atmosphere levels that explore lore
-    give the user a rest, between combat
-    low combat more graphics
-    large rotating fan that the player has to move through
-    nonaggressive mobs one mob attacking the passive mobs
-    in the final level you see your self at the starting level, with the wires
-      you shoot your self to wake up?
-
-wave beam - needs a serious buff, its not fun, and it needs more damage
-  shorter range, higher dmg, faster wiggle
-mod: wave beam - speed up the wave beam and reduce the wave amplitude to improve targeting at range
-
-shotgun - even more short range effects
-
-mod: flechettes - each burst fires an extra flechette
-mod: flechettes - stick into mobs and do poison damage, like foam
-
-mod: foam - does extra poison dmg  (to get past shields)
-
-mod: vacuum bomb - does a constant suck
-
-mod: shield harmonics - large field radius
-
-mod: shotgun - fire extra shot
-  but also increase spread?
-
-speed up movement
-  higher gravity, larger jump force
-  faster horizontal acceleration
-  only increase top speed a bit
-
-mob: targeting laser, then a high speed, no gravity bullet
-
-add difficulty slider to custom?
-
-add recursive mod counts to pause screen
-
-key required to open the exit to some levels
-  must hold key like a block
-  could the key be any block?
-
-css transition for pause menu
-
-field that pushes everything back, and can destroy smaller blocks
-  converts blocks into ammo power ups
-
-mod: make player invisible when...
-  use the flag from phase field
-  when health is low?
-
-field: a larger radius that attracted enemies
-  still deflected them near the robot
-  convert the health of mobs into energy when they are being attracted
-
-mod: chance to not die from fatal damage
-  also push mobs and bodies away?
-  also heal?
-
-mod: bot that fires minigun bullets
-  only fires when your mouse is held down
-
-mod: do extra damage based on your speed
-  do more damage when not moving?
-  take less damage when not moving?
-
-gun/field: portals
-  use the code from mines to get them to stick to walls
-    or lasers
-  alternate red and blue portals
-  
-missiles don't explode reliably enough
-  they can bounce, which is cool, but they should still explode right after a bounce
-
-weekly random challenge where everyone playing each week gets the same random setup.
-  The randomness would be determined by the date so it would sync everyone.
-  power ups still drop, but the drops are determined by a preset list that changes each week.
-
-mod: do something at the end of each level
-  heal to full
-    should still be effected by the heal reduction at higher difficulty
-  give ammo to current gun
-  give goals/quests for each level
-    how to track goals?
-    take no damage
-    don't shoot
-
-gun:  Spirit Bomb (singularity)
-  use charge up like rail gun
-  electricity graphics like plasma torch
-  suck in nearby mobs, power ups?, blocks?
-    sucked in stuff increase size
-  uses energy
-  hold above the player's head
-
-Boss levels
-  sensor that locks you in after you enter the boss room
-  boss that eats other mobs and gains stats from them
-    chance to spawn on any level (past level 5)
-
-add a key that player picks up and needs to set on the exit door to open it
-
-make power ups keep moving to player if the pickup field is turned off before they get picked up
-  not sure how to do this without adding a constant check
-
-animate new level spawn by having the map aspects randomly fly into place
-
-new map with repeating endlessness
-  get ideas from Manifold Garden game
-  if falling, get teleported above the map
-    I tried it, but had trouble getting the camera to adjust to the teleportation
-    this can apply to blocks mobs, and power ups as well
-    
-field power up effects
-  field allows player to hold and throw living mobs
-    and hack mobs
-
-give mobs more animal-like behaviors
-  like rain world
-  give mobs something to do when they don't see player
-    explore map
-    eat power ups
-      drop power up (if killed after eating one)
-  mobs some times aren't aggressive
-    when low on life or after taking a large hit
-  mobs can fight each other
-    this might be hard to code
-  isolated mobs try to group up.
-    
-game mechanics
-  mechanics that support the physics engine
-    add rope/constraint
-  get ideas from game: limbo / inside
-  environmental hazards
-    laser
-    lava
-  button / switch
-  door
-  fizzler
-  moving platform
-  map zones
-    water
-    low friction ground
-    bouncy ground
-
-*/
-
 //collision groups
 //   cat.player | cat.map | cat.body | cat.bullet | cat.powerUp | cat.mob | cat.mobBullet | cat.mobShield
 const cat = {