Merge: Added contributing guidelines and link from readme

[nit.git] / contrib / simplan / simplan.nit

diff --git a/contrib/simplan/simplan.nit b/contrib/simplan/simplan.nit
index ba32497..301c564 100644 (file)
--- a/contrib/simplan/simplan.nit
+++ b/contrib/simplan/simplan.nit
@@ -80,7 +80,7 @@ class PlanProblem
                        print n.message
                        exit 1
                end
-               n = n.children.first.children.first.as(not null)
+               n = n.children.first.as(not null).children.first.as(not null)
                if n isa Nplan then
                        print "Error: expected a problem, got a plan."
                        exit 1
@@ -88,7 +88,7 @@ class PlanProblem
                assert n isa Nproblem
 
                # Load all locations
-               for n2 in n.n_locations.n_list.children do
+               for n2 in n.n_locations.n_list.as(not null).children do
                        var e = new Location(locations.length, n2.n_name.text, n2.n_x.text.to_f, n2.n_y.text.to_f)
                        assert not locations.has_key(e.name)
                        locations[e.name] = e
@@ -97,7 +97,7 @@ class PlanProblem
 
                # Load all roads
                var nbr = 0
-               for n2 in n.n_roads.n_list.children do
+               for n2 in n.n_roads.n_list.as(not null).children do
                        var o = locations.get_or_null(n2.n_orig.text)
                        var d = locations.get_or_null(n2.n_dest.text)
                        assert o != null and d != null
@@ -132,7 +132,7 @@ class PlanProblem
 
                # Load the robot
                var robot = null
-               for n2 in n.n_robots.n_list.children do
+               for n2 in n.n_robots.n_list.as(not null).children do
                        var name = n2.n_name.text
                        robot = locations.get_or_null(n2.n_emplacement.text)
                        assert name == robot_name and robot != null
@@ -142,7 +142,7 @@ class PlanProblem
 
                # Load the parcels
                var parcel_locations = new Array[nullable Location]
-               for n2 in n.n_parcels.n_list.children do
+               for n2 in n.n_parcels.n_list.as(not null).children do
                        var name = n2.n_name.text
                        var e = locations.get_or_null(n2.n_emplacement.text)
                        assert e != null
@@ -155,7 +155,7 @@ class PlanProblem
                print "# {parcels.length} parcels"
 
                # Load the goal of parcels
-               for n2 in n.n_goal.n_list.children do
+               for n2 in n.n_goal.n_list.as(not null).children do
                        var parcel = parcel_by_name.get_or_null(n2.n_name.text)
                        var e = locations.get_or_null(n2.n_emplacement.text)
                        assert parcel != null and e != null
@@ -179,7 +179,7 @@ class PlanProblem
                        print n.message
                        exit 1
                end
-               n = n.children.first.children.first.as(not null)
+               n = n.children.first.as(not null).children.first.as(not null)
                if n isa Nproblem then
                        print "Error: expected a plan, got a problem."
                        exit 1
@@ -189,7 +189,7 @@ class PlanProblem
                var res = new Plan(self)
                var e = initial_state
                var cost = 0.0
-               for n2 in n.n_actions.children do
+               for n2 in n.n_actions.as(not null).children do
                        if n2 isa Naction_load then
                                var parcel = parcel_by_name.get_or_null(n2.n_parcel.text)
                                assert parcel != null