Fix brake location calculation; was applying it to the wrong spot.

autobrake_test.p8

@@ -170,14 +170,14 @@ function constraints:constrain(s, want)
  -- bmx: brake max
  local v1, bmx = calc_velocity(s.dx, want, s.maxspd, s.drag), s.thrust + s.drag
  local bd, bf = brake_dist(v1, bmx)
- local bx, txm = s.x + bd, self.xmax
+ local bx, txm = s.x + bd + v1, self.xmax
  if bx < self.xmin then
   self.color = 9
   want = s.thrust
   txm = self.xmin
   v1 = calc_velocity(s.dx, want, s.maxspd, s.drag)
   bd, bf = brake_dist(v1, bmx)
-  bx  = bd + s.x
+  bx  = bd + s.x + v1
  end
  if (bx < txm) return want
  self.color = 8