diff --git a/chameleonic.p8 b/chameleonic.p8
index abc25a6..af59265 100644
--- a/chameleonic.p8
+++ b/chameleonic.p8
@@ -7,10 +7,6 @@ real_modules={}
 
 frame=0
 function _init()
- -- cls(0)
- -- for i in _stepfrom(0.5,-2.5) do print(i) end
- -- assert(false)
-
  _doall("init") end
 function _update()
  frame+=1
@@ -97,13 +93,13 @@ function _apply(x,ts,a)
  local t=deli(ts,1)
  for k,v in pairs(t) do
   if k=="update" then
-   if not v(x,a) then
-    add(ts,t,1)
-   end
+   --
   else
    x[k]=v
   end
  end
+
+ if (t and t.update and not t.update(x,a)) add(ts,t,1)
 end
 
 function sgn0(x)
@@ -401,28 +397,16 @@ end
 
 function level:recollide()
  self._coll={}
- self._coll_nocrate={}
  for mx=0,15 do
   for my=0,15 do
    local mxy=_mix(mx,my)
-   self._coll_nocrate[mxy]=
-    fget(self:_mget(mx,my),7) 
    self._coll[mxy]=
-    self._coll_nocrate[mxy] or
+    fget(self:_mget(mx,my),7) or
     self._crates[mxy]!=nil
   end
  end
 end
 
-function add_adjacent_anchors(tbl,mx,my)
- for ax in all{mx*2-1,mx*2+2} do
-  for ay in all{my*2-1,my*2+2} do
-   local px,py=level:a2p(ax,ay)
-   tbl[_amix(ax,ay)]={ax=ax0,ay=ay0,x=px,y=py}
-  end
- end
-end
-
 function level:reanchor()
  local anch_new={}
  for dxy in all{{-1,-1},{1,-1},{-1,1},{1,1}} do
@@ -433,7 +417,7 @@ function level:reanchor()
     local mx1,my1=mx0+dx,my0+dy
 
     if (
-     self:mcoll_nocrate(mx0,my0) and 
+     self:mcoll(mx0,my0) and not self:get_crate(mx0,my0) and
      not self:mcoll(mx0,my1) and
      not self:mcoll(mx1,my0) and
      not self:mcoll(mx1,my1)
@@ -497,12 +481,6 @@ function level:get_open_pit(mx,my)
  if (pit and pit.contents==nil) return pit
 end
 
-function level:point_anchor(px,py)
- local ax,ay=self:p2a(px,py)
- local anc=self._anch[_amix(ax,ay)]
- return anc
-end
-
 function level:spawn_exit()
  self._wins={}
  local spawned=false
@@ -516,9 +494,11 @@ function level:spawn_exit()
  end
  local win_at=function(x,y)
   if (self:_mget(x,y)!=18) return
-  for n in all(neighbors{x=x,y=y}) do
-   if n.x<0 or n.y<0 or n.x>15 or n.y>15 then
-    self._wins[_mix(n.x,n.y)]=true
+  for nx=x-1,x+1 do
+   for ny=y-1,y+1 do
+    if nx<0 or ny<0 or nx>15 or ny>15 then
+     self._wins[_mix(nx,ny)]=true
+    end
    end
   end
  end
@@ -529,22 +509,9 @@ function level:spawn_exit()
  assert(spawned)
 end
 
-function level:p2a(px,py)
- return px\4,py\4
-end
-
-function level:a2p(ax,ay)
- local px=ax*4+3*(ax%2)
- local py=ay*4+3*(ay%2)
- return px,py
-end
-
 function level:mcoll(mx,my)
  return self._coll[_mix(mx,my)]!=false
 end
-function level:mcoll_nocrate(mx,my)
- return self._coll_nocrate[_mix(mx,my)]!=false
-end
 
 function level:pcoll(px,py)
  return self:mcoll(px\8,py\8)
@@ -671,20 +638,16 @@ function level:tug_crate(mx0,my0,dmx,dmy)
 
  local mx1,my1=mx0+dmx,my0+dmy
  local mxy1=_mix(mx1,my1) 
- existing.mx=mx1
- existing.my=my1
  existing.todo={
-  {px=mx0*8+dmx*2,py=my0*8+dmy*2},
-  {px=mx0*8+dmx*7,py=my0*8+dmy*7},
-  {px=mx1*8,py=my1*8,update=function()
-   self:reanchor(true)
+  {px=mx1*8+dmx,py=my1*8+dmy,mx=mx1,my=my1,update=function()
+   self:recollide()
+   self:reanchor()
    return true
-  end}
+  end},
+  {px=mx1*8,py=my1*8}
  }
 
  self._crates[mxy1]=existing
- self:recollide()
- self:reanchor(false)
 end
 
 -->8
@@ -955,8 +918,8 @@ function rope:update()
    self.latch.rec!=nil 
   then
    self:drag_src(
-    self.latch.rec.px/8+0.5+self.latch.ax_offset,
-    self.latch.rec.py/8+0.5+self.latch.ay_offset
+    self.latch.rec.mx+0.5+self.latch.ax_offset,
+    self.latch.rec.my+0.5+self.latch.ay_offset
    )
 
    if #self.latch.rec.todo==0 then
@@ -1023,28 +986,34 @@ function rope:draw(artificial_dx,artificial_dy)
  end
 
  -- draw latch
- if self.latch!=nil and perc_to_show>=1.0 then
-  local x,y=points[1].x,points[1].y
+ if self.latch!=nil and self.latch.rec and perc_to_show>=1.0 then
+  local x,y=self.latch.rec.px,self.latch.rec.py
   local ldx,ldy=self.latch.dx,self.latch.dy
   local color=8
   if (highlight==0) color=12
   if self.latch.dx==-1 and self.latch.dy==0 then
-   rectfill(x+1,y-1,x+3,y,color)
+   rectfill(x,y+3,x+2,y+4,color)
   elseif self.latch.dx==1 and self.latch.dy==0 then
-   rectfill(x-1,y-1,x-3,y,color)
+   rectfill(x+5,y+3,x+7,y+4,color)
   elseif self.latch.dx==0 and self.latch.dy==-1 then
-   rectfill(x,y+1,x-1,y+3,color)
+   rectfill(x+3,y,x+4,y+2,color)
   elseif self.latch.dx==0 and self.latch.dy==1 then
-   rectfill(x,y-1,x-1,y-3,color)
+   rectfill(x+3,y+5,x+4,y+7,color)
   end
  end
- local n1=self.src
+
+ -- debug
  --[[
+ local n1=self.src
  local sy=0
  while true do
   if (n1==nil) break
   local x=n1.ax*8
   local y=n1.ay*8
+  if n1.associated_with then
+   if (n1.associated_with.adx>0) x-=1
+   if (n1.associated_with.ady>0) y-=1
+  end
   rectfill(x-1,y-1,x+1,y+1,12)
   print("ax="..n1.ax..",ay="..n1.ay,0,sy)
   sy+=7
@@ -1074,11 +1043,14 @@ function rope:draw(artificial_dx,artificial_dy)
  end
 
  for _,p in pairs(level._anch) do
-	 pset(p.ax*8,p.ay*8,11)
-	 pset(p.ax*8+p.adx,p.ay*8,11)
-	 pset(p.ax*8,p.ay*8+p.ady,11)
+  local x,y=p.ax*8,p.ay*8
+  if (p.adx>0) x-=1
+  if (p.ady>0) y-=1
+	 pset(x,y,11)
+	 pset(x+p.adx,y,11)
+	 pset(x,y+p.ady,11)
 	end
- ]]--
+ ]]
 end
 
 function rope:drag_dst(x,y)
@@ -1125,7 +1097,7 @@ function rope:relax()
 
    local would,x1_new,y1_new=would_stick(x0,y0,n1.associated_with,x2,y2)
    if not would and not (n1.ax==x1_new and n1.ay==y1_new) then
-    printh("relaxing: "..tostring(n0.associated_with).."->"..tostring(n1.associated_with).."->"..tostring(n2.associated_with))
+    --printh("relaxing: "..tostring(n0.associated_with).."->"..tostring(n1.associated_with).."->"..tostring(n2.associated_with))
     self:_drag(n1,x1_new,y1_new)
     n0=n1.prev
     n2=n1.next
@@ -1133,7 +1105,6 @@ function rope:relax()
     n2.prev=n0
     n1.next=nil
     n1.prev=nil
-    --n0=n0.next
    else n0=n0.next end
   else n0=n0.next end
  end
@@ -1143,7 +1114,6 @@ function rope:_check_sane()
  if (self.state.name!="latched") return true
  if (level:busy()) return true
 
- printh("start")
  local n0=self.src
 
  local qxs,qys={},{}
@@ -1152,32 +1122,62 @@ function rope:_check_sane()
   if (n1==nil) break 
 
   for qx,qy in _rast(flr(n0.ax*2),flr(n0.ay*2),flr(n1.ax*2),flr(n1.ay*2)) do
-   add(qxs,qx)
-   add(qys,qy)
+   if not (qx==qxs[#qxs] and qy==qys[#qys]) then
+    add(qxs,qx)
+    add(qys,qy)
+   end
   end
   n0=n1
  end
 
- local function _blocked(qx,qy)
+ local function _possible_tiles(qx,qy)
   local mx0=(qx-1)\2
   local mx1=qx\2
   local my0=(qy-1)\2
   local my1=qy\2
 
-  return level:mcoll(mx0,my0) and level:mcoll(mx1,my1)
+  local poss={}
+  for mx=mx0,mx1 do
+   for my=my0,my1 do
+    add(poss,{mx=mx,my=my})
+   end
+  end
+  return poss
  end
- for i=1,#qxs do
-  if (_blocked(qxs[i],qys[i])) printh("blocked"..qxs[i]..","..qys[i]) return false
+ local function _blocked(qx,qy)
+  for i in all(_possible_tiles(qx,qy)) do
+   if (not level:mcoll(i.mx,i.my)) return false
+  end
+  return true
  end
 
+ -- find cases where i move through an impassable zone
+ for i=1,#qxs do
+  if (_blocked(qxs[i],qys[i])) return false
+ end
+
+ -- find cases where i am cut off diagonally
  for i=3,#qxs do
   local qx1,qy1=qxs[i-1],qys[i-1]
   if qx1%2==0 and qy1%2==0 then
-   local qx0,qy0=qxs[i-2],qys[i-2]
-   local qx2,qy2=qxs[i],qys[i]
-   local mx0,my0=qx0\2,qy0\2
-   local mx2,my2=qx2\2,qy2\2
-   if (level:mcoll(mx0,my2) and level:mcoll(mx2,my0)) printh("not traversable") return false
+   local ok=false
+   for m0 in all(_possible_tiles(qxs[i-2],qys[i-2])) do
+    for m2 in all(_possible_tiles(qxs[i],qys[i])) do
+     local mx0,my0=m0.mx,m0.my
+     local mx2,my2=m2.mx,m2.my
+     if not (level:mcoll(mx0,my0) or level:mcoll(mx2,my2)) then
+      local dmx,dmy=abs(mx2-mx0),abs(my2-my0)
+
+      if dmx==1 and dmy==1 and level:mcoll(mx0,my2) and level:mcoll(mx2,my0) then
+      else
+       --printh("ok! "..tostring({qxs[i-2],qys[i-2]})..tostring({qxs[i],qys[i]})..tostring(m0)..tostring(m2))
+       ok=true
+      end
+     end
+    end
+   end
+
+   if (not ok) return false
   end
  end
  return true
@@ -1213,8 +1213,6 @@ function would_stick(x0,y0,anchor,x2,y2)
  return not wouldnt,x1_new,y1_new,adx,ady
 end
 
--- TODO: Upon adding a point, start from there to see if we need another
--- rather than adding at most one
 function rope:_drag(n1,ax1_new,ay1_new)
  local function _sweep_radar(ax_pivot,ay_pivot,ax_far0,ay_far0,ax_far1,ay_far1)
   if (ax_far0==ax_far1 and ay_far0==ay_far1) return nil
@@ -1268,8 +1266,6 @@ function rope:_drag(n1,ax1_new,ay1_new)
     end
     ax_far_old=ax_far_new
    end
-  else
-   assert(false, "wtf?")
   end
  end
 
@@ -1283,7 +1279,7 @@ function rope:_drag(n1,ax1_new,ay1_new)
   local anch=_sweep_radar(n0.ax,n0.ay,ax1_old,ay1_old,ax1_new,ay1_new)
   if (anch==nil) break
   local n05={ax=anch.ax,ay=anch.ay,associated_with=anch,prev=n0,next=n1}
-  printh("creating post: "..tostring(n0.associated_with).."->"..tostring(n05.associated_with).."->"..tostring(n1.associated_with))
+  --printh("creating post: "..tostring(n0.associated_with).."->"..tostring(n05.associated_with).."->"..tostring(n1.associated_with))
   n0.next=n05
   n1.prev=n05
   n0=n05
@@ -1295,7 +1291,7 @@ function rope:_drag(n1,ax1_new,ay1_new)
   local anch=_sweep_radar(n2.ax,n2.ay,ax1_old,ay1_old,ax1_new,ay1_new)
   if (anch==nil) break
   local n15={ax=anch.ax,ay=anch.ay,associated_with=anch,prev=n1,next=n2}
-  printh("creating post: "..tostring(n1.associated_with).."->"..tostring(n15.associated_with).."->"..tostring(n2.associated_with))
+  --printh("creating post: "..tostring(n1.associated_with).."->"..tostring(n15.associated_with).."->"..tostring(n2.associated_with))
   n1.next=n15
   n2.prev=n15
   n2=n15
@@ -1329,24 +1325,10 @@ function _stepfrom(x0,x1)
  end
 end
 
-function _in_box(x,y,x0,y0,x1,y1)
- x0,x1=_mnmx(x0,x1)
- y0,y1=_mnmx(y0,y1)
- return x0<=x and y0<=y and x<=x1 and y<=y1
-end
-
 function _which_side(x,y,x0,y0,x1,y1)
  return sgn0((x1-x0)*(y-y0) - (y1-y0)*(x-x0))
 end
 
-function _linedist(x0,v,x1)
- return 100 * (sum_distance(x0,v,x1)-distance(x0,x1))/distance(x0,x1)
-end
-
-function sum_distance(x,y,z)
- return distance(x,y) + distance(y,z)
-end
-
 function distance_dxy(dx,dy)
  return sqrt(dx*dx+dy*dy)
 end
@@ -1361,10 +1343,10 @@ function rope:collide_mrect(mx0,my0,mw,mh,exclude_src,exclude_dst)
  local mx1,my1=mx0+mw,my0+mh
  local n0=self.src
 
- mx0+=0.1
- my0+=0.1
- mx1-=0.1
- my1-=0.1
+ mx0+=0.4
+ my0+=0.4
+ mx1-=0.4
+ my1-=0.4
 
  while true do
   local n1=n0.next
@@ -1401,18 +1383,6 @@ function _line_line(x1,y1,x2,y2,x3,y3,x4,y4)
  return true
 end
 
-function neighbors(p)
- local r={}
- for dx=-1,1,1 do
-  for dy=-1,1,1 do
-   if dx!=0 or dy!=0 then
-    add(r,{x=p.x+dx,y=p.y+dy})
-   end
-  end
- end
- return r
-end
-
 -->8
 -- moved here because it's complicated