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/* *****************************************************************************
* A.L.E (Arcade Learning Environment)
* Copyright (c) 2009-2013 by Yavar Naddaf, Joel Veness, Marc G. Bellemare and
* the Reinforcement Learning and Artificial Intelligence Laboratory
* Released under the GNU General Public License; see License.txt for details.
*
* Based on: Stella -- "An Atari 2600 VCS Emulator"
* Copyright (c) 1995-2007 by Bradford W. Mott and the Stella team
*
* *****************************************************************************
*/
#include "Kaboom.hpp"
#include <iostream>
#include "../RomUtils.hpp"
namespace ale {
KaboomSettings::KaboomSettings() { reset(); }
/* create a new instance of the rom */
RomSettings* KaboomSettings::clone() const {
RomSettings* rval = new KaboomSettings();
*rval = *this;
return rval;
}
/* process the latest information from ALE */
void KaboomSettings::step(const System& system) {
// update the reward
reward_t score = getDecimalScore(0xA5, 0xA4, 0xA3, &system);
m_reward = score - m_score;
m_score = score;
// update terminal status
int lives = readRam(&system, 0xA1);
m_terminal = lives == 0x0 || m_score == 999999;
}
/* is end of game */
bool KaboomSettings::isTerminal() const { return m_terminal; };
/* get the most recently observed reward */
reward_t KaboomSettings::getReward() const { return m_reward; }
/* is an action part of the minimal set? */
bool KaboomSettings::isMinimal(const Action& a) const {
switch (a) {
case PLAYER_A_NOOP:
case PLAYER_A_FIRE:
case PLAYER_A_RIGHT:
case PLAYER_A_LEFT:
return true;
default:
return false;
}
}
/* reset the state of the game */
void KaboomSettings::reset() {
m_reward = 0;
m_score = 0;
m_terminal = false;
}
/* saves the state of the rom settings */
void KaboomSettings::saveState(Serializer& ser) {
ser.putInt(m_reward);
ser.putInt(m_score);
ser.putBool(m_terminal);
}
// loads the state of the rom settings
void KaboomSettings::loadState(Deserializer& ser) {
m_reward = ser.getInt();
m_score = ser.getInt();
m_terminal = ser.getBool();
}
ActionVect KaboomSettings::getStartingActions() {
ActionVect startingActions;
startingActions.push_back(PLAYER_A_FIRE);
return startingActions;
}
} // namespace ale