121 lines
3 KiB
Java
121 lines
3 KiB
Java
package mekanism.api.gas;
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import net.minecraft.nbt.NBTTagCompound;
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/**
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* GasStack - a specified amount of a defined Gas with certain properties.
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* @author aidancbrady
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*
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*/
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public class GasStack {
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private Gas type;
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public int amount;
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/**
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* Creates a new GasStack with a defined gas ID and quantity.
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* @param id - gas ID to associate this GasStack to, will perform a GasRegistry lookup
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* in the constructor
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* @param quantity - amount of gas to be referenced in this GasStack
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*/
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public GasStack(int id, int quantity) {
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type = GasRegistry.getGas(id);
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amount = quantity;
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}
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/**
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* Creates a new GasStack with a defined Gas type and quantity.
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* @param gas - gas type of the stack
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* @param quantity - amount of gas to be referenced in this GasStack
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*/
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public GasStack(Gas gas, int quantity) {
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type = gas;
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amount = quantity;
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}
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private GasStack() {}
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/**
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* Gets the Gas type of this GasStack.
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* @return this GasStack's Gas type
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*/
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public Gas getGas() {
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return type;
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}
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public GasStack withAmount(int newAmount) {
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amount = newAmount;
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return this;
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}
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/**
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* Writes this GasStack to a defined tag compound.
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* @param nbtTags - tag compound to write to
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* @return tag compound with this GasStack's data
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*/
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public NBTTagCompound write(NBTTagCompound nbtTags) {
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type.write(nbtTags);
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nbtTags.setInteger("amount", amount);
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return nbtTags;
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}
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/**
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* Reads this GasStack's data from a defined tag compound.
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* @param nbtTags - tag compound to read from
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*/
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public void read(NBTTagCompound nbtTags) {
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type = Gas.readFromNBT(nbtTags);
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amount = nbtTags.getInteger("amount");
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}
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/**
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* Returns the GasStack stored in the defined tag compound, or null if it doesn't
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* exist.
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* @param nbtTags - tag compound to read from
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* @return GasStack stored in the tag compound
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*/
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public static GasStack readFromNBT(NBTTagCompound nbtTags) {
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if (nbtTags == null || nbtTags.hasNoTags()) {
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return null;
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}
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GasStack stack = new GasStack();
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stack.read(nbtTags);
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if (stack.getGas() == null || stack.amount <= 0) {
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return null;
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}
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return stack;
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}
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/**
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* Returns a copied form of this GasStack.
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* @return copied GasStack
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*/
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public GasStack copy() {
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return new GasStack(type, amount);
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}
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/**
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* Whether or not this GasStack's gas type is equal to the other defined GasStack.
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* @param stack - GasStack to check
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* @return if the GasStacks contain the same gas type
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*/
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public boolean isGasEqual(GasStack stack) {
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return stack != null && getGas() == stack.getGas();
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}
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@Override
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public String toString() {
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return "[" + type + ", " + amount + "]";
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}
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@Override
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public int hashCode() {
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return type == null ? 0 : type.getID();
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}
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}
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