jace/src/main/java/jace/cheat/Cheats.java

127 lines
3.9 KiB
Java

/*
* Copyright (C) 2012 Brendan Robert (BLuRry) brendan.robert@gmail.com.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
package jace.cheat;
import jace.apple2e.MOS65C02;
import jace.config.InvokableAction;
import jace.core.Computer;
import jace.core.Device;
import jace.core.RAMEvent;
import jace.core.RAMListener;
import java.util.HashSet;
import java.util.Set;
/**
* Represents some combination of hacks that can be enabled or disabled through
* the configuration interface.
*
* @author Brendan Robert (BLuRry) brendan.robert@gmail.com
*/
public abstract class Cheats extends Device {
boolean cheatsActive = true;
Set<RAMListener> listeners = new HashSet<>();
public Cheats(Computer computer) {
super(computer);
}
@InvokableAction(name = "Toggle Cheats", alternatives = "cheat;Plug-in", defaultKeyMapping = "ctrl+shift+m")
public void toggleCheats() {
cheatsActive = !cheatsActive;
if (cheatsActive) {
attach();
} else {
detach();
}
}
public RAMListener bypassCode(int address, int addressEnd) {
int noOperation = MOS65C02.COMMAND.NOP.ordinal();
return addCheat(RAMEvent.TYPE.READ, (e) -> e.setNewValue(noOperation), address, addressEnd);
}
public RAMListener forceValue(int value, int... address) {
return addCheat(RAMEvent.TYPE.ANY, (e) -> e.setNewValue(value), address);
}
public RAMListener forceValue(int value, boolean auxFlag, int... address) {
return addCheat(RAMEvent.TYPE.ANY, auxFlag, (e) -> e.setNewValue(value), address);
}
public RAMListener addCheat(RAMEvent.TYPE type, RAMEvent.RAMEventHandler handler, int... address) {
RAMListener listener;
if (address.length == 1) {
listener = computer.getMemory().observe(type, address[0], handler);
} else {
listener = computer.getMemory().observe(type, address[0], address[1], handler);
}
listeners.add(listener);
return listener;
}
public RAMListener addCheat(RAMEvent.TYPE type, boolean auxFlag, RAMEvent.RAMEventHandler handler, int... address) {
RAMListener listener;
if (address.length == 1) {
listener = computer.getMemory().observe(type, address[0], auxFlag, handler);
} else {
listener = computer.getMemory().observe(type, address[0], address[1], auxFlag, handler);
}
listeners.add(listener);
return listener;
}
@Override
public void attach() {
registerListeners();
}
@Override
public void detach() {
unregisterListeners();
super.detach();
}
public abstract void registerListeners();
protected void unregisterListeners() {
listeners.stream().forEach((l) -> {
computer.getMemory().removeListener(l);
});
listeners.clear();
}
public void removeListener(RAMListener l) {
computer.getMemory().removeListener(l);
listeners.remove(l);
}
@Override
public void reconfigure() {
unregisterListeners();
if (cheatsActive) {
registerListeners();
}
}
@Override
public String getShortName() {
return "cheat";
}
}