chameleonic.p8

@@ -1087,7 +1087,6 @@ function rope:draw(artificial_px,artificial_py)
  end
 
  -- debug
- --[[
  local n1=self.src
  local sy=0
  while true do
@@ -1134,7 +1133,6 @@ function rope:draw(artificial_px,artificial_py)
 	 pset(x+p.adx,y,11)
 	 pset(x,y+p.ady,11)
 	end
- ]]
 end
 
 function rope:drag_dst(x,y)
@@ -1153,18 +1151,6 @@ function rope:drag(n1,ax_new,ay_new)
 end
 
 function rope:relax()
- local n=self.src
-
- while true do
-  if (n==nil) break
-
-  if (n.associated_with) then 
-   self:_drag(n,n.associated_with.ax,n.associated_with.ay)
-  end
-
-  n=n.next
- end
-
  local n0=self.src
  while true do
   local n1=n0.next
@@ -1173,7 +1159,7 @@ function rope:relax()
 
   if n0.ax==n1.ax and n0.ay==n1.ay then 
    n0.next=n2 
-   n2.prev=n0
+   if (n2!=nil) n2.prev=n0
   else
    n0=n0.next
   end
@@ -1193,9 +1179,14 @@ function rope:relax()
    local x1,y1=n1.ax,n1.ay
    local x2,y2=n2.ax,n2.ay
 
+   if x1!=n1.associated_with.ax or y1!=n1.associated_with.ay then
+    -- printh("dragging home: "..tostring{n1.ax,n1.ay}.."->"..tostring(n1.associated_with))
+    self:_drag(n1,n1.associated_with.ax,n1.associated_with.ay)
+   end
+
    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
@@ -1379,7 +1370,7 @@ function rope:_drag(n1,ax1_new,ay1_new)
     for anchor in level:anchor_points() do
      if 
       not (anchor.ax==ax_pivot and anchor.ay==ay_pivot) and
-      not (anchor.ax==ax_far0 and anchor.ay==ay_far0) and
+      -- not (anchor.ax==ax_far0 and anchor.ay==ay_far0) and
       not (anchor.ax==ax_far1 and anchor.ay==ay_far1) and
       (ax0<=anchor.ax and anchor.ax<=ax1) and 
       would_stick(ax_pivot,ay_pivot,anchor,ax_far,ay_far_new) and
@@ -1402,7 +1393,7 @@ function rope:_drag(n1,ax1_new,ay1_new)
     for anchor in level:anchor_points() do
      if 
       not (anchor.ax==ax_pivot and anchor.ay==ay_pivot) and
-      not (anchor.ax==ax_far0 and anchor.ay==ay_far0) and
+      -- not (anchor.ax==ax_far0 and anchor.ay==ay_far0) and
       not (anchor.ax==ax_far1 and anchor.ay==ay_far1) and
       would_stick(ax_pivot,ay_pivot,anchor,ax_far_new,ay_far) and
       (ay0<=anchor.ay and anchor.ay<=ay1) and 
@@ -1429,7 +1420,7 @@ 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 pre: "..tostring(n0.associated_with).."->"..tostring(n05.associated_with).."->"..tostring(n1.associated_with))
   n0.next=n05
   n1.prev=n05
   n0=n05
@@ -1441,7 +1432,7 @@ 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
@@ -1503,31 +1494,30 @@ function rope:collide_mrect(mx0,my0,mw,mh,exclude_src,exclude_dst)
    if (nd==nil) return false
   end
 
+  local x1,y1,x2,y2=n0.ax,n0.ay,n1.ax,n1.ay
+  local function _line_line(x3,y3,x4,y4)
+   local denom=((y4-y3)*(x2-x1)-(x4-x3)*(y2-y1))
+
+   local ua=
+    ((x4-x3)*(y1-y3)-(y4-y3)*(x1-x3))/denom
+   if (ua<0 or ua>1) return false
+
+   local ub=
+    ((x2-x1)*(y1-y3)-(y2-y1)*(x1-x3))/denom
+   if (ub<0 or ub>1) return false
+
+   return true
+  end
+
+
   if exclude_src<=0 then
-   if (_line_line(n0.ax,n0.ay,n1.ax,n1.ay,mx0,my0,mx1,my0)) return true
-   if (_line_line(n0.ax,n0.ay,n1.ax,n1.ay,mx0,my0,mx0,my1)) return true
-   if (_line_line(n0.ax,n0.ay,n1.ax,n1.ay,mx0,my1,mx1,my1)) return true
-   if (_line_line(n0.ax,n0.ay,n1.ax,n1.ay,mx1,my0,mx1,my1)) return true
+   if (_line_line(mx0,my0,mx1,my0) or _line_line(mx0,my0,mx0,my1) or _line_line(mx0,my1,mx1,my1) or _line_line(mx1,my0,mx1,my1)) return true
   end
   exclude_src-=1
   n0=n1
  end
 end
 
-function _line_line(x1,y1,x2,y2,x3,y3,x4,y4)
- local denom=((y4-y3)*(x2-x1)-(x4-x3)*(y2-y1))
-
- local ua=
-  ((x4-x3)*(y1-y3)-(y4-y3)*(x1-x3))/denom
- if (ua<0 or ua>1) return false
-
- local ub=
-  ((x2-x1)*(y1-y3)-(y2-y1)*(x1-x3))/denom
- if (ub<0 or ub>1) return false
-
- return true
-end
-
 -->8
 -- moved here because it's complicated
 
@@ -1728,20 +1718,20 @@ function rope:_anchors_simplified()
    x=flr(a.ax*8+0.5),y=flr(a.ay*8+0.5),
    ax=a.ax,ay=a.ay
   }
-  if a.associated_with then
-   if (a.associated_with.adx==1) point.x-=1
-   if (a.associated_with.ady==1) point.y-=1
-  elseif a.prev==nil and self.latch then
-   if (self.latch.ax_offset<0) point.x-=1
-   if (self.latch.ay_offset<0) point.y-=1
+  local aw=a.associated_with
+  local l=self.latch
+  if aw then
+   if (aw.adx==1) point.x-=1
+   if (aw.ady==1) point.y-=1
+  elseif a.prev==nil and l then
+   if (l.ax_offset<0) point.x-=1
+   if (l.ay_offset<0) point.y-=1
   end
 
-  if #points<=1 then 
+  local p0,p1=points[#points-1],points[#points]
+  if p0==nil then
    add(points,point)
-  elseif abs(
-   _slope(points[#points-1],points[#points])-
-   _slope(points[#points],point)
-  )==0 then  -- epsilon?
+  elseif _slope(p0,p1)==_slope(p1,point) then  -- epsilon?
    points[#points]=point
   else
    add(points,point)
@@ -1789,14 +1779,14 @@ function level_text:init()
  for i=0,32 do level_text.by_lvl[i]={} end
 	for row in all(level_text_raw) do
   if row then
-   lvl,x,y,s=unpack(split(row,"`"))
-   add(level_text.by_lvl[lvl],{x,y,s})
+   lvlxys=split(row,"`")
+   add(level_text.by_lvl[lvlxys[1]],lvlxys)
   end
 	end
 end
 function level_text:draw()
  for xys in all(level_text.by_lvl[level.ix]) do
-  print(xys[3],xys[1],xys[2],6)
+  print(xys[4],xys[2],xys[3],6)
  end
 end
 __gfx__
@@ -1974,22 +1964,22 @@ __gff__
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