void PacMan::performAction(action_t action) {
timestep++;
int newX, newY;
m_reward = 200;
if (action == 0) {//Go up
newX = pacmanX;
newY = pacmanY - 1;
} else if (action == 1) { //Go right
newX = pacmanX + 1;
newY = pacmanY;
} else if (action == 2) { //Go down
newX = pacmanX;
newY = pacmanY + 1;
} else if (action == 3) { // Go left
newX = pacmanX - 1;
newY = pacmanY;
}
movePacmanAndUpdateReward(newX, newY);
moveGhostAndUpdateReward(&aGhostX, &aGhostY, &sniffA, &aGhostCovering, 'A');
moveGhostAndUpdateReward(&bGhostX, &bGhostY, &sniffB, &bGhostCovering, 'B');
moveGhostAndUpdateReward(&cGhostX, &cGhostY, &sniffC, &cGhostCovering, 'C');
moveGhostAndUpdateReward(&dGhostX, &dGhostY, &sniffD, &dGhostCovering, 'D');
updateObservation();
m_action = action;
if (reset) {
resetEpisode();
}
//printMap();
}
void HotPlateTest::runTest(bool useContinuousInputs,
const std::string& baseFilename)
{
DataFile dataFile(mNumTrialsPerRun);
for (unsigned int run = 0; run < mNumRuns; ++run)
{
verve::AgentDescriptor desc;
if (useContinuousInputs)
{
desc.addContinuousSensor(); // Robot position.
// If we're using dynamic RBFs, we need to keep the resolution
// smaller than the actual discrete grid world's resolution.
// Otherwise, we'll get a sparse set of RBFs with tiny receptive
// fields. (This is sort of a special case; normally we would
// not use continuous sensors in a discrete world.)
desc.setContinuousSensorResolution(10);
}
else
{
desc.addDiscreteSensor(20); // Robot position.
}
desc.setNumOutputs(3);
verve::Agent a(desc);
verve::Observation obs;
obs.init(a);
a.setTDLearningRate((verve::real)0.1, 10);
for (unsigned int trial = 0; trial < mNumTrialsPerRun; ++trial)
{
a.resetShortTermMemory();
mWorld.randomizeRobotPosition();
unsigned int stepCount = 0;
while (!isRobotAtGoal() && stepCount < mMaxStepsPerTrial)
{
updateObservation(obs, useContinuousInputs);
// Update the Agent.
unsigned int action = a.update(computeReward(), obs,
(verve::real)0.1);
switch(action)
{
case 0:
mWorld.moveRobotLeft();
break;
case 1:
mWorld.moveRobotRight();
break;
case 2:
// Don't move.
break;
default:
assert(false);
break;
}
++stepCount;
}
// If the Agent has actually reached the goal (and did not
// simply run out of time), this will reward it.
updateObservation(obs, useContinuousInputs);
a.update(computeReward(), obs, (verve::real)0.1);
dataFile.storeData("trial", trial, (float)trial);
dataFile.storeData("steps to goal", trial, (float)stepCount);
//// Print value function data.
//if (0 == run &&
// (trial == 0 || trial == 4 || trial == 9 || trial == 29))
//{
// char fileStr[1024];
// sprintf(fileStr, "%s-trial%d-value.dat",
// baseFilename.c_str(), trial);
// a.saveValueData(400, fileStr);
//}
}
if (run % 50 == 0)
{
printRunStatus(run);
}
//if (0 == run)
//{
// a.saveValueData(400, baseFilename + "-valueData.dat");
// a.saveStateRBFData(baseFilename + "-stateRBFData.dat");
//}
}
dataFile.printToFile(baseFilename + "-performance.dat");
}
void CuriosityTest::runTest(bool useContinuousInputs,
const std::string& baseFilename)
{
DataFile dataFile(mNumTrialsPerRun);
for (unsigned int run = 0; run < mNumRuns; ++run)
{
verve::AgentDescriptor desc;
desc.setArchitecture(verve::CURIOUS_MODEL_RL);
desc.setMaxNumPlanningSteps(50);
if (useContinuousInputs)
{
desc.addContinuousSensor(); // Robot x position.
desc.addContinuousSensor(); // Robot y position.
// If we're using dynamic RBFs, we need to keep the resolution
// smaller than the actual discrete grid world's resolution.
// Otherwise, we'll get a sparse set of RBFs with tiny receptive
// fields. (This is sort of a special case; normally we would
// not use continuous sensors in a discrete world.)
desc.setContinuousSensorResolution(15);
}
else
{
desc.addDiscreteSensor(mWorld.getGridXSize()); // Robot x position.
desc.addDiscreteSensor(mWorld.getGridYSize()); // Robot y position.
}
desc.setNumOutputs(5);
verve::Agent a(desc);
verve::Observation obs;
obs.init(a);
a.setModelLearningRate((verve::real)0.0);
a.setTDLearningRate((verve::real)0.1, (verve::real)2.0);
for (unsigned int trial = 0; trial < mNumTrialsPerRun; ++trial)
{
a.resetShortTermMemory();
mWorld.setRobotPosition(mRobotStartPosition[0],
mRobotStartPosition[1]);
unsigned int stepCount = 0;
verve::real rewardSum = 0;
while (stepCount < mNumStepsPerTrial)
{
updateObservation(obs, useContinuousInputs);
// Update the Agent.
unsigned int action = a.update(computeReward(), obs,
(verve::real)0.1);
switch(action)
{
case 0:
mWorld.moveRobotLeft();
break;
case 1:
mWorld.moveRobotRight();
break;
case 2:
mWorld.moveRobotUp();
break;
case 3:
mWorld.moveRobotDown();
break;
case 4:
// Don't move.
break;
default:
assert(false);
break;
}
++stepCount;
rewardSum += computeReward();
}
// If the Agent has actually reached the goal (and did not
// simply run out of time), this will reward it.
updateObservation(obs, useContinuousInputs);
a.update(computeReward(), obs, (verve::real)0.1);
dataFile.storeData("trial", trial, (float)trial);
dataFile.storeData("reward sum", trial, rewardSum);
// Print value function data.
if (0 == run &&
(trial == 1 || trial == 9 || trial == 49 || trial == 79))
{
char fileStr[1024];
sprintf(fileStr, "%s-trial%d-value.dat",
baseFilename.c_str(), trial);
a.saveValueData(400, fileStr);
}
if (trial % 5 == 0)
{
printTrialAndRunStatus(run, trial, rewardSum);
}
}
}
dataFile.printToFile(baseFilename + "-performance.dat");
}