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PipeTransportPower.java
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PipeTransportPower.java
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/**
* Copyright (c) SpaceToad, 2011 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.transport;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.ForgeDirection;
import buildcraft.BuildCraftCore;
import buildcraft.api.core.SafeTimeTracker;
import buildcraft.api.gates.ITrigger;
import buildcraft.api.power.IPowerEmitter;
import buildcraft.api.power.IPowerReceptor;
import buildcraft.api.power.PowerHandler.PowerReceiver;
import buildcraft.api.power.PowerHandler.Type;
import buildcraft.api.transport.IPipeTile.PipeType;
import buildcraft.core.DefaultProps;
import buildcraft.core.proxy.CoreProxy;
import buildcraft.transport.network.PacketPowerUpdate;
import buildcraft.transport.pipes.PipePowerCobblestone;
import buildcraft.transport.pipes.PipePowerDiamond;
import buildcraft.transport.pipes.PipePowerGold;
import buildcraft.transport.pipes.PipePowerIron;
import buildcraft.transport.pipes.PipePowerQuartz;
import buildcraft.transport.pipes.PipePowerStone;
import buildcraft.transport.pipes.PipePowerWood;
public class PipeTransportPower extends PipeTransport {
private static final short MAX_DISPLAY = 100;
private static final int DISPLAY_SMOOTHING = 10;
private static final int OVERLOAD_TICKS = 60;
public static final Map<Class<? extends Pipe>, Integer> powerCapacities = new HashMap<Class<? extends Pipe>, Integer>();
static {
powerCapacities.put(PipePowerCobblestone.class, 8);
powerCapacities.put(PipePowerStone.class, 16);
powerCapacities.put(PipePowerWood.class, 32);
powerCapacities.put(PipePowerQuartz.class, 64);
powerCapacities.put(PipePowerIron.class, 128);
powerCapacities.put(PipePowerGold.class, 256);
powerCapacities.put(PipePowerDiamond.class, 1024);
}
private boolean needsInit = true;
private TileEntity[] tiles = new TileEntity[6];
public float[] displayPower = new float[6];
private float[] prevDisplayPower = new float[6];
public short[] clientDisplayPower = new short[6];
public int overload;
private int[] powerQuery = new int[6];
public int[] nextPowerQuery = new int[6];
private long currentDate;
private float[] internalPower = new float[6];
public float[] internalNextPower = new float[6];
public int maxPower = 8;
SafeTimeTracker tracker = new SafeTimeTracker();
public PipeTransportPower() {
for (int i = 0; i < 6; ++i) {
powerQuery[i] = 0;
}
}
@Override
public PipeType getPipeType() {
return PipeType.POWER;
}
public void initFromPipe(Class<? extends Pipe> pipeClass) {
maxPower = powerCapacities.get(pipeClass);
}
@Override
public boolean canPipeConnect(TileEntity tile, ForgeDirection side) {
if (tile instanceof TileGenericPipe) {
Pipe pipe2 = ((TileGenericPipe) tile).pipe;
if (BlockGenericPipe.isValid(pipe2) && !(pipe2.transport instanceof PipeTransportPower))
return false;
return true;
}
if (tile instanceof IPowerReceptor) {
IPowerReceptor receptor = (IPowerReceptor) tile;
PowerReceiver receiver = receptor.getPowerReceiver(side.getOpposite());
if (receiver != null && receiver.getType().canReceiveFromPipes())
return true;
}
if (container.pipe instanceof PipePowerWood && tile instanceof IPowerEmitter) {
IPowerEmitter emitter = (IPowerEmitter) tile;
if (emitter.canEmitPowerFrom(side.getOpposite()))
return true;
}
return false;
}
@Override
public void onNeighborBlockChange(int blockId) {
super.onNeighborBlockChange(blockId);
updateTiles();
}
private void updateTiles() {
for (ForgeDirection side : ForgeDirection.VALID_DIRECTIONS) {
TileEntity tile = container.getTile(side);
if (container.isPipeConnected(side)) {
tiles[side.ordinal()] = tile;
} else {
tiles[side.ordinal()] = null;
internalPower[side.ordinal()] = 0;
internalNextPower[side.ordinal()] = 0;
displayPower[side.ordinal()] = 0;
}
}
}
private void init() {
if (needsInit) {
needsInit = false;
updateTiles();
}
}
@Override
public void updateEntity() {
if (CoreProxy.proxy.isRenderWorld(container.worldObj))
return;
step();
init();
// Send the power to nearby pipes who requested it
System.arraycopy(displayPower, 0, prevDisplayPower, 0, 6);
Arrays.fill(displayPower, 0.0F);
for (int i = 0; i < 6; ++i) {
if (internalPower[i] > 0) {
float totalPowerQuery = 0;
for (int j = 0; j < 6; ++j) {
if (j != i && powerQuery[j] > 0)
if (tiles[j] instanceof TileGenericPipe || tiles[j] instanceof IPowerReceptor) {
totalPowerQuery += powerQuery[j];
}
}
for (int j = 0; j < 6; ++j) {
if (j != i && powerQuery[j] > 0) {
float watts = 0.0F;
PowerReceiver prov = getReceiverOnSide(ForgeDirection.VALID_DIRECTIONS[j]);
if (prov != null && prov.powerRequest() > 0) {
watts = (internalPower[i] / totalPowerQuery) * powerQuery[j];
watts = prov.receiveEnergy(Type.PIPE, watts, ForgeDirection.VALID_DIRECTIONS[j].getOpposite());
internalPower[i] -= watts;
} else if (tiles[j] instanceof TileGenericPipe) {
watts = (internalPower[i] / totalPowerQuery) * powerQuery[j];
TileGenericPipe nearbyTile = (TileGenericPipe) tiles[j];
PipeTransportPower nearbyTransport = (PipeTransportPower) nearbyTile.pipe.transport;
watts = nearbyTransport.receiveEnergy(ForgeDirection.VALID_DIRECTIONS[j].getOpposite(), watts);
internalPower[i] -= watts;
}
displayPower[j] += watts;
displayPower[i] += watts;
}
}
}
}
double highestPower = 0;
for (int i = 0; i < 6; i++) {
displayPower[i] = (prevDisplayPower[i] * (DISPLAY_SMOOTHING - 1.0F) + displayPower[i]) / DISPLAY_SMOOTHING;
if (displayPower[i] > highestPower) {
highestPower = displayPower[i];
}
}
overload += highestPower > maxPower * 0.95 ? 1 : -1;
if (overload < 0) {
overload = 0;
}
if (overload > OVERLOAD_TICKS) {
overload = OVERLOAD_TICKS;
}
// Compute the tiles requesting energy that are not power pipes
for (int i = 0; i < 6; ++i) {
PowerReceiver prov = getReceiverOnSide(ForgeDirection.VALID_DIRECTIONS[i]);
if (prov != null) {
float request = prov.powerRequest();
if (request > 0) {
requestEnergy(ForgeDirection.VALID_DIRECTIONS[i], request);
}
}
}
// Sum the amount of energy requested on each side
int[] transferQuery = new int[6];
for (int i = 0; i < 6; ++i) {
transferQuery[i] = 0;
for (int j = 0; j < 6; ++j) {
if (j != i) {
transferQuery[i] += powerQuery[j];
}
}
transferQuery[i] = Math.min(transferQuery[i], maxPower);
}
// Transfer the requested energy to nearby pipes
for (int i = 0; i < 6; ++i) {
if (transferQuery[i] != 0) {
if (tiles[i] != null) {
TileEntity entity = tiles[i];
if (entity instanceof TileGenericPipe) {
TileGenericPipe nearbyTile = (TileGenericPipe) entity;
if (nearbyTile.pipe == null) {
continue;
}
PipeTransportPower nearbyTransport = (PipeTransportPower) nearbyTile.pipe.transport;
nearbyTransport.requestEnergy(ForgeDirection.VALID_DIRECTIONS[i].getOpposite(), transferQuery[i]);
}
}
}
}
if (tracker.markTimeIfDelay(container.worldObj, 2 * BuildCraftCore.updateFactor)) {
PacketPowerUpdate packet = new PacketPowerUpdate(container.xCoord, container.yCoord, container.zCoord);
double displayFactor = MAX_DISPLAY / 1024.0;
for (int i = 0; i < clientDisplayPower.length; i++) {
clientDisplayPower[i] = (short) (displayPower[i] * displayFactor + .9999);
}
packet.displayPower = clientDisplayPower;
packet.overload = isOverloaded();
CoreProxy.proxy.sendToPlayers(packet.getPacket(), container.worldObj, container.xCoord, container.yCoord, container.zCoord, DefaultProps.PIPE_CONTENTS_RENDER_DIST);
}
}
private PowerReceiver getReceiverOnSide(ForgeDirection side) {
TileEntity tile = tiles[side.ordinal()];
if (!(tile instanceof IPowerReceptor))
return null;
IPowerReceptor receptor = (IPowerReceptor) tile;
PowerReceiver receiver = receptor.getPowerReceiver(side.getOpposite());
if (receiver == null)
return null;
if (!receiver.getType().canReceiveFromPipes())
return null;
return receiver;
}
public boolean isOverloaded() {
return overload >= OVERLOAD_TICKS;
}
private void step() {
if (currentDate != container.worldObj.getTotalWorldTime()) {
currentDate = container.worldObj.getTotalWorldTime();
powerQuery = nextPowerQuery;
nextPowerQuery = new int[6];
float[] next = internalPower;
internalPower = internalNextPower;
internalNextPower = next;
// for (int i = 0; i < powerQuery.length; i++) {
// int sum = 0;
// for (int j = 0; j < powerQuery.length; j++) {
// if (i != j) {
// sum += powerQuery[j];
// }
// }
// if (sum == 0 && internalNextPower[i] > 0) {
// internalNextPower[i] -= 1;
// }
// }
}
}
/**
* Do NOT ever call this from outside Buildcraft. It is NOT part of the API.
* All power input MUST go through designated input pipes, such as Wooden
* Power Pipes or a subclass thereof.
*/
public float receiveEnergy(ForgeDirection from, float val) {
// Keep this in reserve for if too many idiots start bypassing the API
// Verify that it is BC calling this method.
// If its someone else take all their power and run!
// Note: This should be safe for PipePowerWood subclasses, aka custom input pipes.
// StackTraceElement[] stackTrace = (new Throwable()).getStackTrace();
// String caller = stackTrace[1].getClassName();
// if (!caller.equals("buildcraft.transport.PipeTransportPower")
// && !caller.equals("buildcraft.transport.pipes.PipePowerWood")) {
// return val;
// }
step();
if (this.container.pipe instanceof IPipeTransportPowerHook) {
float ret = ((IPipeTransportPowerHook) this.container.pipe).receiveEnergy(from, val);
if (ret >= 0)
return ret;
}
int side = from.ordinal();
if (internalNextPower[side] > maxPower)
return 0;
internalNextPower[side] += val;
if (internalNextPower[side] > maxPower) {
val -= internalNextPower[side] - maxPower;
internalNextPower[side] = maxPower;
if (val < 0)
val = 0;
}
return val;
}
public void requestEnergy(ForgeDirection from, float amount) {
step();
if (this.container.pipe instanceof IPipeTransportPowerHook) {
nextPowerQuery[from.ordinal()] += ((IPipeTransportPowerHook) this.container.pipe).requestEnergy(from, amount);
} else {
nextPowerQuery[from.ordinal()] += amount;
}
}
@Override
public void initialize() {
currentDate = container.worldObj.getTotalWorldTime();
}
@Override
public void readFromNBT(NBTTagCompound nbttagcompound) {
super.readFromNBT(nbttagcompound);
for (int i = 0; i < 6; ++i) {
powerQuery[i] = nbttagcompound.getInteger("powerQuery[" + i + "]");
nextPowerQuery[i] = nbttagcompound.getInteger("nextPowerQuery[" + i + "]");
internalPower[i] = (float) nbttagcompound.getDouble("internalPower[" + i + "]");
internalNextPower[i] = (float) nbttagcompound.getDouble("internalNextPower[" + i + "]");
}
}
@Override
public void writeToNBT(NBTTagCompound nbttagcompound) {
super.writeToNBT(nbttagcompound);
for (int i = 0; i < 6; ++i) {
nbttagcompound.setInteger("powerQuery[" + i + "]", powerQuery[i]);
nbttagcompound.setInteger("nextPowerQuery[" + i + "]", nextPowerQuery[i]);
nbttagcompound.setDouble("internalPower[" + i + "]", internalPower[i]);
nbttagcompound.setDouble("internalNextPower[" + i + "]", internalNextPower[i]);
}
}
public boolean isTriggerActive(ITrigger trigger) {
return false;
}
/**
* Client-side handler for receiving power updates from the server;
*
* @param packetPower
*/
public void handlePowerPacket(PacketPowerUpdate packetPower) {
clientDisplayPower = packetPower.displayPower;
overload = packetPower.overload ? OVERLOAD_TICKS : 0;
}
}