GridWorldProblem::GridWorldProblem() :
width_(0), height_(0), x0_(0), y0_(0),
goals_(0), actionCost_(0.03)
{
absorbing = new GridWorldState(this, -1, -1);
addAllActions();
}
void ActionSet::addAllActionsFromSet(const ActionSet& actions) {
if (actions.contains(ActionType::anyAction)) {
addAllActions();
return;
}
_actions |= actions._actions;
}
void ActionSet::addAction(const ActionType& action) {
if (action == ActionType::anyAction) {
addAllActions();
return;
}
_actions.set(action.getIdentifier(), true);
}
GridWorldProblem::GridWorldProblem(
int width, int height, int x0, int y0,
PairDoubleMap* goals, double actionCost) :
width_(width), height_(height), x0_(x0), y0_(y0),
actionCost_(actionCost)
{
goals_ = new PairDoubleMap();
for (auto const & goalEntry : *goals)
(*goals_)[goalEntry.first] = goalEntry.second;
s0 = new GridWorldState(this, x0_, y0_);
absorbing = new GridWorldState(this, -1, -1);
this->addState(s0);
addAllActions();
}
GridWorldProblem::GridWorldProblem(int width, int height,
int x0, int y0,
PairDoubleMap* goals, mlcore::Heuristic* h)
: width_(width), height_(height),
x0_(x0), y0_(y0)
{
goals_ = new PairDoubleMap();
for (auto const & goalEntry : *goals)
(*goals_)[goalEntry.first] = goalEntry.second;
s0 = new GridWorldState(this, x0_, y0_);
absorbing = new GridWorldState(this, -1, -1);
this->addState(s0);
heuristic_ = h;
gamma_ = 1.0;
addAllActions();
}
GridWorldProblem::GridWorldProblem(const char* filename,
double actionCost,
double holeCost,
bool allDirections)
{
mdplib_debug = true;
std::ifstream myfile (filename);
goals_ = new PairDoubleMap();
// Once the file is finished parsing, these will have correct values
width_ = 0, height_ = 0;
if (myfile.is_open()) {
std::string line;
while ( std::getline (myfile, line) ) {
for (width_ = 0; width_ < line.size(); width_++) {
if (line.at(width_) == 'x') {
walls.insert(std::pair<int, int>(width_, height_));
} else if (line.at(width_) == '@') {
holes.insert(std::pair<int, int>(width_, height_));
} else if (line.at(width_) == 'G') {
goals_->insert(
std::make_pair(
std::pair<int,int> (width_, height_), 0.0));
} else if (line.at(width_) == 'S') {
x0_ = width_;
y0_ = height_;
} else {
assert(line.at(width_) == '.');
}
}
height_++;
}
myfile.close();
} else {
std::cerr << "Invalid file " << filename << std::endl;
exit(-1);
}
actionCost_ = actionCost;
holeCost_ = holeCost;
allDirections_ = allDirections;
s0 = new GridWorldState(this, x0_, y0_);
absorbing = new GridWorldState(this, -1, -1);
this->addState(s0);
this->addState(absorbing);
addAllActions();
}
