X-Git-Url: https://ruin.nu/git/?a=blobdiff_plain;f=node.cpp;h=1fb2b2e3ee9448eeb50a7f0657e23f1082f72895;hb=e26fd7b3195576b25ffe51253a391b53f412a650;hp=ed72a7f60c5a5e289c33fe36592a715d4ec29cc1;hpb=498b277372ebab0008b97399d387285b36d88826;p=popboot.git

diff --git a/node.cpp b/node.cpp
index ed72a7f..1fb2b2e 100644
--- a/node.cpp
+++ b/node.cpp
@@ -1,11 +1,13 @@
 #include "node.h"
+#include <algorithm>
 using namespace std;
 
 Node::Node(Action action){
 	_action = action;
+	_preconditions = _action.preconditions();
 }
 
-Action Node::action(){
+const Action& Node::action() const{
 	return _action;
 }
 
@@ -15,10 +17,15 @@ void Node::addChild(Node* node){
 }
 
 
-void Node::execute(){
+void Node::execute(const literals& effects){
+	for (literals::const_iterator effect = effects.begin(); effect != effects.end(); ++effect){
+		_preconditions.erase(find(_preconditions.begin(),_preconditions.end(), *effect));
+	}
+	if (_preconditions.size() != 0)
+		return;
 	_action.execute();
 	
 	for(vector<Node*>::iterator child = _children.begin(); child != _children.end(); ++child){
-		(*child)->execute();
+		(*child)->execute(_action.effects());
 	}
 }