Resize sprites, tighten player hitbox, implement smarter collision.

src/kani.lua

@@ -53,7 +53,8 @@ function Kani:init(ui)
    self.type = 'kani'
    self:setGroupMask(0x2)
    self:setCollidesWithGroupsMask(0xd)
-
+   self:setCollideRect(1,12,25,24)
+   
    self.reserveCharge = 100
 
    -- controls the speed the crank recharges the player's reserves. A lower number allows faster charging.
@@ -155,6 +156,6 @@ end
 function Kani:runReady()
    local collisions = Kani.super.runReady(self)
    for i=0, #collisions, 1 do
-      -- handle player-triggered collisions
+      -- TODO: handle player-triggered collisions
    end
 end