package cofh.api.energy;
import net.minecraft.nbt.NBTTagCompound;
/**
* Reference implementation of {@link IEnergyStorage}. Use/extend this or implement your own.
*
* @author King Lemming
*
*/
public class EnergyStorage implements IEnergyStorage {
protected int energy;
protected int capacity;
protected int maxReceive;
protected int maxExtract;
public EnergyStorage(int capacity) {
this(capacity, capacity, capacity);
}
public EnergyStorage(int capacity, int maxTransfer) {
this(capacity, maxTransfer, maxTransfer);
}
public EnergyStorage(int capacity, int maxReceive, int maxExtract) {
this.capacity = capacity;
this.maxReceive = maxReceive;
this.maxExtract = maxExtract;
}
public EnergyStorage readFromNBT(NBTTagCompound nbt) {
this.energy = nbt.getInteger("Energy");
if (energy > capacity) {
energy = capacity;
}
return this;
}
public NBTTagCompound writeToNBT(NBTTagCompound nbt) {
if (energy < 0) {
energy = 0;
}
nbt.setInteger("Energy", energy);
return nbt;
}
public void setCapacity(int capacity) {
this.capacity = capacity;
if (energy > capacity) {
energy = capacity;
}
}
public void setMaxTransfer(int maxTransfer) {
setMaxReceive(maxTransfer);
setMaxExtract(maxTransfer);
}
public void setMaxReceive(int maxReceive) {
this.maxReceive = maxReceive;
}
public void setMaxExtract(int maxExtract) {
this.maxExtract = maxExtract;
}
public int getMaxReceive() {
return maxReceive;
}
public int getMaxExtract() {
return maxExtract;
}
/**
* This function is included to allow for server -> client sync. Do not call this externally to the containing Tile Entity, as not all IEnergyHandlers
* are guaranteed to have it.
*
* @param energy
*/
public void setEnergyStored(int energy) {
this.energy = energy;
if (this.energy > capacity) {
this.energy = capacity;
} else if (this.energy < 0) {
this.energy = 0;
}
}
/**
* This function is included to allow the containing tile to directly and efficiently modify the energy contained in the EnergyStorage. Do not rely on this
* externally, as not all IEnergyHandlers are guaranteed to have it.
*
* @param energy
*/
public void modifyEnergyStored(int energy) {
this.energy += energy;
if (this.energy > capacity) {
this.energy = capacity;
} else if (this.energy < 0) {
this.energy = 0;
}
}
/* IEnergyStorage */
@Override
public int receiveEnergy(int maxReceive, boolean simulate) {
int energyReceived = Math.min(capacity - energy, Math.min(this.maxReceive, maxReceive));
if (!simulate) {
energy += energyReceived;
}
return energyReceived;
}
@Override
public int extractEnergy(int maxExtract, boolean simulate) {
int energyExtracted = Math.min(energy, Math.min(this.maxExtract, maxExtract));
if (!simulate) {
energy -= energyExtracted;
}
return energyExtracted;
}
@Override
public int getEnergyStored() {
return energy;
}
@Override
public int getMaxEnergyStored() {
return capacity;
}
}