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DockingStationRegistry.java
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DockingStationRegistry.java
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/**
* Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.robots;
import java.security.InvalidParameterException;
import java.util.Collection;
import java.util.HashMap;
import net.minecraftforge.common.util.ForgeDirection;
public final class DockingStationRegistry {
private static HashMap<StationIndex, DockingStation> stations = new HashMap<StationIndex, DockingStation>();
private DockingStationRegistry() {
}
private static class StationIndex {
public int x, y, z;
public ForgeDirection side;
public StationIndex(int ix, int iy, int iz, ForgeDirection iSide) {
// TODO: should probably consider dimension id here too
x = ix;
y = iy;
z = iz;
side = iSide;
}
@Override
public boolean equals(Object obj) {
if (obj instanceof StationIndex) {
StationIndex d = (StationIndex) obj;
return d.x == x && d.y == y && d.z == z && d.side == side;
}
return super.equals(obj);
}
@Override
public int hashCode() {
return ((x * 37 + y) * 37 + z * 37) + side.ordinal();
}
@Override
public String toString() {
return "{" + x + ", " + y + ", " + z + ", " + side + "}";
}
}
public static DockingStation getStation(int x, int y, int z, ForgeDirection side) {
StationIndex index = new StationIndex(x, y, z, side);
if (stations.containsKey(index)) {
return stations.get(index);
} else {
return null;
}
}
public static Collection<DockingStation> getStations() {
return stations.values();
}
public static void registerStation(DockingStation station) {
StationIndex index = toIndex(station);
if (stations.containsKey(index)) {
throw new InvalidParameterException("Station " + index + " already registerd");
} else {
stations.put(index, station);
}
}
public static void removeStation(DockingStation station) {
StationIndex index = toIndex(station);
if (stations.containsKey(index)) {
stations.remove(index);
}
}
private static StationIndex toIndex(DockingStation station) {
return new StationIndex(station.pipe.xCoord, station.pipe.yCoord, station.pipe.zCoord, station.side);
}
}